neuclear-develop — Support requests, cvs etc

[Neuclear-develop] [JIRA] Closed: (GL-16) Create LedgerBrowserServlet

[<bug...@ve...>]

Message:

   The following issue has been closed.

   Resolver: Pelle Braendgaard
       Date: Mon, 29 Mar 2004 12:11 PM

This now works. It should work with any Ledger that implements LedgerBrowser.
---------------------------------------------------------------------
View the issue:
  http://jira.neuclear.org//browse/GL-16

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: GL-16
    Summary: Create LedgerBrowserServlet
       Type: New Feature

     Status: Closed
   Priority: Major
 Resolution: FIXED

 Original Estimate: Unknown
 Time Spent: Unknown
  Remaining: Unknown

    Project: NeuClear Ledger
   Fix Fors:
             r_0_4

   Assignee: Pelle Braendgaard
   Reporter: Pelle Braendgaard

    Created: Wed, 19 Nov 2003 12:26 PM
    Updated: Mon, 29 Mar 2004 12:11 PM

Description:
Create a LedgerBrowserServlet, which will format and page the items for a particular account a ledger.

The Servlet should be setup in its Init parameters with information about:
- The Ledger Instance to use
- The Ledger ID

The account in mention will be determined by a request parameter.

AccessControl should be done outside of this Servlet in a filter.


---------------------------------------------------------------------
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[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/servlets LedgerServlet.java,1.6,1.7

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/servlets
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6815/src/java/org/neuclear/ledger/servlets

Modified Files:
	LedgerServlet.java 
Log Message:
LedgerServlet works now at least for a straight non date restricted browse.

Index: LedgerServlet.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/servlets/LedgerServlet.java,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** LedgerServlet.java	26 Mar 2004 23:36:34 -0000	1.6
--- LedgerServlet.java	29 Mar 2004 20:05:16 -0000	1.7
***************
*** 3,9 ****
  import org.neuclear.commons.Utility;
  import org.neuclear.commons.servlets.ServletTools;
- import org.neuclear.commons.sql.JNDIConnectionSource;
- import org.neuclear.commons.sql.statements.SimpleStatementFactory;
- import org.neuclear.commons.sql.statements.StatementFactory;
  import org.neuclear.commons.time.TimeTools;
  import org.neuclear.id.InvalidNamedObjectException;
--- 3,6 ----
***************
*** 12,15 ****
--- 9,13 ----
  import org.neuclear.ledger.browser.BookBrowser;
  import org.neuclear.ledger.browser.LedgerBrowser;
+ import org.neuclear.ledger.simple.PopulatedSimpleLedger;
  
  import javax.servlet.ServletConfig;
***************
*** 18,25 ****
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
- import javax.sql.DataSource;
  import java.io.IOException;
  import java.io.PrintWriter;
- import java.math.BigDecimal;
  import java.security.Principal;
  
--- 16,21 ----
***************
*** 44,47 ****
--- 40,46 ----
  $Id$
  $Log$
+ Revision 1.7  2004/03/29 20:05:16  pelle
+ LedgerServlet works now at least for a straight non date restricted browse.
+ 
  Revision 1.6  2004/03/26 23:36:34  pelle
  The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
***************
*** 72,85 ****
  public class LedgerServlet extends HttpServlet {
      public void init(ServletConfig config) throws ServletException {
-         datasource = ServletTools.getInitParam("datasource", config);
          serviceid = ServletTools.getInitParam("serviceid", config);
          try {
!             fact = new SimpleStatementFactory(new JNDIConnectionSource(datasource));
! //            ledger= new SQLLedger(
! //                    fact,
! //                        serviceid
! //                );
! //            if (!ledger.bookExists("neu://alice@test"))
! //                PopulateLedger.main(null);
          } catch (Exception e) {
              throw new ServletException(e);
--- 71,77 ----
  public class LedgerServlet extends HttpServlet {
      public void init(ServletConfig config) throws ServletException {
          serviceid = ServletTools.getInitParam("serviceid", config);
          try {
!             ledger = new PopulatedSimpleLedger(serviceid);
          } catch (Exception e) {
              throw new ServletException(e);
***************
*** 99,103 ****
                  book = serviceid;
              else
!                 book = "neu:/" + book;
              BookBrowser stmt = ledger.browse(book);
              out.println("<table><tr><th>Transaction ID</th><th>Time</th><th>Counterparty</th><th>Comment</th><th>Amount</th></tr>");
--- 91,96 ----
                  book = serviceid;
              else
!                 book = book.substring(1);
!             System.out.println("Browsing: " + book);
              BookBrowser stmt = ledger.browse(book);
              out.println("<table><tr><th>Transaction ID</th><th>Time</th><th>Counterparty</th><th>Comment</th><th>Amount</th></tr>");
***************
*** 134,142 ****
      }
  
-     private DataSource ds;
-     private String datasource;
      private String serviceid;
-     private static final BigDecimal ZERO = new BigDecimal(0);
      private LedgerBrowser ledger;
-     private StatementFactory fact;
  }
--- 127,131 ----

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/simple SimpleLedger.java,1.7,1.8

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6815/src/java/org/neuclear/ledger/simple

Modified Files:
	SimpleLedger.java 
Log Message:
LedgerServlet works now at least for a straight non date restricted browse.

Index: SimpleLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple/SimpleLedger.java,v
retrieving revision 1.7
retrieving revision 1.8
diff -C2 -d -r1.7 -r1.8
*** SimpleLedger.java	29 Mar 2004 16:56:26 -0000	1.7
--- SimpleLedger.java	29 Mar 2004 20:05:17 -0000	1.8
***************
*** 4,7 ****
--- 4,10 ----
   * $Id$
   * $Log$
+  * Revision 1.8  2004/03/29 20:05:17  pelle
+  * LedgerServlet works now at least for a straight non date restricted browse.
+  *
   * Revision 1.7  2004/03/29 16:56:26  pelle
   * AbstractLedgerBrowserTest has been extended to test date ranges
***************
*** 100,104 ****
   * thread safe or supportive of transactions.
   */
! public final class SimpleLedger extends Ledger implements LedgerBrowser {
  
      public SimpleLedger(final String name) {
--- 103,107 ----
   * thread safe or supportive of transactions.
   */
! public class SimpleLedger extends Ledger implements LedgerBrowser {
  
      public SimpleLedger(final String name) {

[Neuclear-develop] neuclear-ledger project.xml,1.16,1.17

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6815

Modified Files:
	project.xml 
Log Message:
LedgerServlet works now at least for a straight non date restricted browse.

Index: project.xml
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/project.xml,v
retrieving revision 1.16
retrieving revision 1.17
diff -C2 -d -r1.16 -r1.17
*** project.xml	23 Mar 2004 22:01:43 -0000	1.16
--- project.xml	29 Mar 2004 20:05:17 -0000	1.17
***************
*** 78,81 ****
--- 78,84 ----
              <id>picocontainer</id>
              <version>1.0-beta-1</version>
+             <properties>
+                 <war.bundle>true</war.bundle>
+             </properties>
          </dependency>
          <dependency>

[Neuclear-develop] neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate HibernateLedger.java,1.10,1.11

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv30668/src/java/org/neuclear/ledger/hibernate

Modified Files:
	HibernateLedger.java 
Log Message:
AbstractLedgerBrowserTest has been extended to test date ranges
SimpleLedger now passes all tests.
HibernateLedger passes at times, which is mysterious. More research needed.

Index: HibernateLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate/HibernateLedger.java,v
retrieving revision 1.10
retrieving revision 1.11
diff -C2 -d -r1.10 -r1.11
*** HibernateLedger.java	26 Mar 2004 23:36:50 -0000	1.10
--- HibernateLedger.java	29 Mar 2004 16:57:00 -0000	1.11
***************
*** 386,390 ****
              Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=?");
              q.setString(0, book);
!             q.setDate(1, from);
              Iterator iter = q.iterate();
              return new HibernateBookBrowser(iter, book);
--- 386,391 ----
              Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=?");
              q.setString(0, book);
!             q.setTimestamp(1, from);
!             System.out.println("from: " + from);
              Iterator iter = q.iterate();
              return new HibernateBookBrowser(iter, book);
***************
*** 400,405 ****
              Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=? and item.transaction.transactionTime<?");
              q.setString(0, book);
!             q.setDate(1, from);
!             q.setDate(1, until);
              Iterator iter = q.iterate();
              return new HibernateBookBrowser(iter, book);
--- 401,409 ----
              Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=? and item.transaction.transactionTime<?");
              q.setString(0, book);
!             q.setTimestamp(1, from);
!             q.setTimestamp(2, until);
!             System.out.println("from: " + from);
!             System.out.println("until: " + until);
!             System.out.println("range of " + (until.getTime() - from.getTime()));
              Iterator iter = q.iterate();
              return new HibernateBookBrowser(iter, book);

[Neuclear-develop] neuclear-ledger-hibernate/src/java hibernate.properties,1.7,1.8

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv30668/src/java

Modified Files:
	hibernate.properties 
Log Message:
AbstractLedgerBrowserTest has been extended to test date ranges
SimpleLedger now passes all tests.
HibernateLedger passes at times, which is mysterious. More research needed.

Index: hibernate.properties
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/hibernate.properties,v
retrieving revision 1.7
retrieving revision 1.8
diff -C2 -d -r1.7 -r1.8
*** hibernate.properties	26 Mar 2004 23:36:50 -0000	1.7
--- hibernate.properties	29 Mar 2004 16:57:00 -0000	1.8
***************
*** 299,303 ****
  ## print all generated SQL to the console
  
! #hibernate.show_sql true
  
  
--- 299,303 ----
  ## print all generated SQL to the console
  
! hibernate.show_sql true
  
  

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/tests AbstractLedgerBrowserTest.java,1.2,1.3

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/tests
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv30575/src/java/org/neuclear/ledger/tests

Modified Files:
	AbstractLedgerBrowserTest.java 
Log Message:
AbstractLedgerBrowserTest has been extended to test date ranges
SimpleLedger now passes all tests.
HibernateLedger passes at times, which is mysterious. More research needed.

Index: AbstractLedgerBrowserTest.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/tests/AbstractLedgerBrowserTest.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** AbstractLedgerBrowserTest.java	26 Mar 2004 23:36:34 -0000	1.2
--- AbstractLedgerBrowserTest.java	29 Mar 2004 16:56:26 -0000	1.3
***************
*** 13,16 ****
--- 13,21 ----
  $Id$
  $Log$
+ Revision 1.3  2004/03/29 16:56:26  pelle
+ AbstractLedgerBrowserTest has been extended to test date ranges
+ SimpleLedger now passes all tests.
+ HibernateLedger passes at times, which is mysterious. More research needed.
+ 
  Revision 1.2  2004/03/26 23:36:34  pelle
  The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
***************
*** 44,47 ****
--- 49,67 ----
      }
  
+     public static Date getIsolatedTimeStamp() {
+         try {
+             Thread.currentThread().sleep(5);
+         } catch (InterruptedException e) {
+             ;
+         }
+         final Date t = new Date();
+         try {
+             Thread.currentThread().sleep(5);
+         } catch (InterruptedException e) {
+             ;
+         }
+         return t;
+     }
+ 
      public void testAmountOfEntries() throws LowlevelLedgerException, InvalidTransactionException {
          final String bob = getBobBook();
***************
*** 78,82 ****
          final String alice = getAliceBook();
  
!         Date t1 = new Date();
          assertBookBrowserSize(bob, 0, browser.browse(bob));
          assertBookBrowserSize(alice, 0, browser.browse(alice));
--- 98,102 ----
          final String alice = getAliceBook();
  
!         Date t1 = getIsolatedTimeStamp();
          assertBookBrowserSize(bob, 0, browser.browse(bob));
          assertBookBrowserSize(alice, 0, browser.browse(alice));
***************
*** 88,92 ****
          assertBookBrowserSize(alice, i, browser.browse(alice));
  
!         Date t2 = new Date();
          assertTrue(t2.after(t1));
  
--- 108,112 ----
          assertBookBrowserSize(alice, i, browser.browse(alice));
  
!         Date t2 = getIsolatedTimeStamp();
          assertTrue(t2.after(t1));
  
***************
*** 106,113 ****
      }
  
!     public void testEntryContentFromTime() throws LowlevelLedgerException, InvalidTransactionException {
          final String bob = getBobBook();
          final String alice = getAliceBook();
  
          assertBookBrowserSize(bob, 0, browser.browse(bob));
          assertBookBrowserSize(alice, 0, browser.browse(alice));
--- 126,134 ----
      }
  
!     public void testAmountOfEntriesInTimeRange() throws LowlevelLedgerException, InvalidTransactionException {
          final String bob = getBobBook();
          final String alice = getAliceBook();
  
+         Date t1 = getIsolatedTimeStamp();
          assertBookBrowserSize(bob, 0, browser.browse(bob));
          assertBookBrowserSize(alice, 0, browser.browse(alice));
***************
*** 116,125 ****
              ledger.transfer(bob, alice, 10, "test" + i);
          }
!         assertVerifyBrowserContent(bob, alice, -10, i, browser.browse(bob));
!         assertVerifyBrowserContent(alice, bob, 10, i, browser.browse(alice));
  
  
!     }
  
  
      public void assertVerifyBrowserContent(final String book, final String counterparty, final double amount, final int count, final BookBrowser bb) throws LowlevelLedgerException {
--- 137,176 ----
              ledger.transfer(bob, alice, 10, "test" + i);
          }
!         assertBookBrowserSize(bob, i, browser.browse(bob));
!         assertBookBrowserSize(alice, i, browser.browse(alice));
  
+         Date t2 = getIsolatedTimeStamp();
  
!         for (i = 0; i < 10; i++) {
!             ledger.transfer(bob, alice, 10, "test" + i);
!         }
!         assertBookBrowserSize(bob, 20, browser.browse(bob));
!         assertBookBrowserSize(alice, 20, browser.browse(alice));
!         Date t3 = getIsolatedTimeStamp();
! 
!         for (i = 0; i < 10; i++) {
!             ledger.transfer(bob, alice, 10, "test" + i);
!         }
!         Date t4 = getIsolatedTimeStamp();
!         assertBookBrowserSize(bob, 30, browser.browse(bob));
!         assertBookBrowserSize(alice, 30, browser.browse(alice));
  
+         assertBookBrowserSize(bob, 10, browser.browseRange(bob, t3, t4));
+         assertBookBrowserSize(alice, 10, browser.browseRange(alice, t3, t4));
+         assertBookBrowserSize(bob, 10, browser.browseRange(bob, t2, t3));
+         assertBookBrowserSize(alice, 10, browser.browseRange(alice, t2, t3));
+         assertBookBrowserSize(bob, 10, browser.browseRange(bob, t1, t2));
+         assertBookBrowserSize(alice, 10, browser.browseRange(alice, t1, t2));
+ 
+ 
+         assertBookBrowserSize(bob, 20, browser.browseRange(bob, t1, t3));
+         assertBookBrowserSize(alice, 20, browser.browseRange(alice, t1, t3));
+         assertBookBrowserSize(bob, 20, browser.browseRange(bob, t2, t4));
+         assertBookBrowserSize(alice, 20, browser.browseRange(alice, t2, t4));
+ 
+         assertBookBrowserSize(bob, 30, browser.browseRange(bob, t1, t4));
+         assertBookBrowserSize(alice, 30, browser.browseRange(alice, t1, t4));
+ 
+     }
  
      public void assertVerifyBrowserContent(final String book, final String counterparty, final double amount, final int count, final BookBrowser bb) throws LowlevelLedgerException {

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/simple SimpleLedger.java,1.6,1.7

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv30575/src/java/org/neuclear/ledger/simple

Modified Files:
	SimpleLedger.java 
Log Message:
AbstractLedgerBrowserTest has been extended to test date ranges
SimpleLedger now passes all tests.
HibernateLedger passes at times, which is mysterious. More research needed.

Index: SimpleLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple/SimpleLedger.java,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** SimpleLedger.java	26 Mar 2004 23:36:34 -0000	1.6
--- SimpleLedger.java	29 Mar 2004 16:56:26 -0000	1.7
***************
*** 4,7 ****
--- 4,12 ----
   * $Id$
   * $Log$
+  * Revision 1.7  2004/03/29 16:56:26  pelle
+  * AbstractLedgerBrowserTest has been extended to test date ranges
+  * SimpleLedger now passes all tests.
+  * HibernateLedger passes at times, which is mysterious. More research needed.
+  *
   * Revision 1.6  2004/03/26 23:36:34  pelle
   * The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
***************
*** 89,95 ****
  import org.neuclear.ledger.browser.LedgerBrowser;
  
! import java.util.Date;
! import java.util.HashMap;
! import java.util.Iterator;
  
  /**
--- 94,98 ----
  import org.neuclear.ledger.browser.LedgerBrowser;
  
! import java.util.*;
  
  /**
***************
*** 105,108 ****
--- 108,112 ----
          held = new HashMap();
          balances = new HashMap();
+         books = new HashMap();
  
      }
***************
*** 121,129 ****
              throw new UnBalancedTransactionException(this, trans);
          final PostedTransaction posted = new PostedTransaction(trans, new Date());
!         ledger.put(id, posted);
          updateBalances(posted);
          return posted;
      }
  
      private void updateBalances(final PostedTransaction trans) {
          synchronized (balances) {
--- 125,149 ----
              throw new UnBalancedTransactionException(this, trans);
          final PostedTransaction posted = new PostedTransaction(trans, new Date());
!         return post(posted);
!     }
! 
!     private PostedTransaction post(final PostedTransaction posted) {
!         ledger.put(posted.getId(), posted);
!         postToBook(posted);
          updateBalances(posted);
          return posted;
      }
  
+     private void postToBook(final PostedTransaction posted) {
+         Iterator iter = posted.getItems();
+         while (iter.hasNext()) {
+             TransactionItem item = (TransactionItem) iter.next();
+             if (!books.containsKey(item.getBook()))
+                 books.put(item.getBook(), new LinkedList());
+             List bookentries = (List) books.get(item.getBook());
+             bookentries.add(posted);
+         }
+     }
+ 
      private void updateBalances(final PostedTransaction trans) {
          synchronized (balances) {
***************
*** 172,175 ****
--- 192,196 ----
          final PostedHeldTransaction posted = new PostedHeldTransaction(trans, new Date());
          held.put(posted.getId(), posted);
+         postToBook(posted);
          return posted;
      }
***************
*** 211,217 ****
          held.remove(hold.getId());
          PostedTransaction posted = new PostedTransaction(hold, new Date(), amount, comment);
!         ledger.put(posted.getId(), posted);
!         updateBalances(posted);
!         return posted;
      }
  
--- 232,236 ----
          held.remove(hold.getId());
          PostedTransaction posted = new PostedTransaction(hold, new Date(), amount, comment);
!         return post(posted);
      }
  
***************
*** 324,332 ****
  
      public BookBrowser browseFrom(String book, Date from) throws LowlevelLedgerException {
!         return null;
      }
  
      public BookBrowser browseRange(String book, Date from, Date until) throws LowlevelLedgerException {
!         return null;
      }
  
--- 343,351 ----
  
      public BookBrowser browseFrom(String book, Date from) throws LowlevelLedgerException {
!         return new SimpleBookBrowser(book, from);
      }
  
      public BookBrowser browseRange(String book, Date from, Date until) throws LowlevelLedgerException {
!         return new SimpleBookBrowser(book, from, until);
      }
  
***************
*** 335,344 ****
      private final String id;
      private final HashMap balances;
  
      private class SimpleBookBrowser extends BookBrowser {
!         public SimpleBookBrowser(String book) {
              super(book);
!             iter = ledger.keySet().iterator();
!             System.out.println("ledger contains: " + ledger.size());
          }
  
--- 354,391 ----
      private final String id;
      private final HashMap balances;
+     private final HashMap books;
  
      private class SimpleBookBrowser extends BookBrowser {
!         public SimpleBookBrowser(final String book) {
!             this(book, null, null);
!         }
! 
!         public SimpleBookBrowser(final String book, final Date from) {
!             this(book, from, null);
!         }
! 
!         public SimpleBookBrowser(final String book, final Date from, final Date to) {
              super(book);
!             this.from = from;
!             this.to = to;
!             if (books.containsKey(book)) {
!                 iter = ((List) books.get(book)).iterator();
! //                System.out.println("book contains: " + ((List)books.get(book)).size());
!             } else {
!                 iter = new Iterator() {
!                     public void remove() {
! 
!                     }
! 
!                     public boolean hasNext() {
!                         return false;
!                     }
! 
!                     public Object next() {
!                         return null;
!                     }
! 
!                 };
!             }
          }
  
***************
*** 346,355 ****
              if (!iter.hasNext())
                  return false;
! //            PostedTransaction tran=(PostedTransaction) ledger.get((iter.next()));
!             iter.next();
              return true;
          }
  
          private final Iterator iter;
      }
  }
--- 393,433 ----
              if (!iter.hasNext())
                  return false;
!             PostedTransaction tran = (PostedTransaction) iter.next();
!             if (!isValid(tran))
!                 return next();
! 
!             setRow(tran);
              return true;
          }
  
+         private boolean isValid(final PostedTransaction posted) {
+             if (from == null)
+                 return true;
+             if (posted.getTransactionTime().after(from)) {
+                 return (to == null) || posted.getTransactionTime().before(to);
+             }
+             return false;
+         }
+ 
+         private void setRow(PostedTransaction tran) {
+             Iterator iter = tran.getItems();
+             TransactionItem item = null;
+             String counterparty = null;
+             while (iter.hasNext()) {
+                 TransactionItem party = (TransactionItem) iter.next();
+                 if (!party.getBook().equals(getBook())) {
+                     counterparty = party.getBook();
+                 } else {
+                     item = party;
+                 }
+             }
+ 
+             setRow(tran.getId(), tran.getRequestId(), counterparty, tran.getComment(), tran.getTransactionTime(), item.getAmount(), null, null, null);
+         }
+ 
          private final Iterator iter;
+         private final Date from;
+         private final Date to;
+ //        private int i=0;
      }
  }

[Neuclear-develop] neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate HibernateBookBrowser.java,1.1,1.2 HibernateLedger.java,1.9,1.10

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25398/src/java/org/neuclear/ledger/hibernate

Modified Files:
	HibernateBookBrowser.java HibernateLedger.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: HibernateLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate/HibernateLedger.java,v
retrieving revision 1.9
retrieving revision 1.10
diff -C2 -d -r1.9 -r1.10
*** HibernateLedger.java	26 Mar 2004 18:38:27 -0000	1.9
--- HibernateLedger.java	26 Mar 2004 23:36:50 -0000	1.10
***************
*** 381,390 ****
      }
  
!     public BookBrowser browseFrom(String book, Timestamp from) throws LowlevelLedgerException {
!         return null;
      }
  
!     public BookBrowser browseRange(String book, Timestamp from, Timestamp until) throws LowlevelLedgerException {
!         return null;
      }
  
--- 381,411 ----
      }
  
!     public BookBrowser browseFrom(String book, Date from) throws LowlevelLedgerException {
!         try {
!             Session ses = factory.openSession();
!             Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=?");
!             q.setString(0, book);
!             q.setDate(1, from);
!             Iterator iter = q.iterate();
!             return new HibernateBookBrowser(iter, book);
!         } catch (HibernateException e) {
!             throw new LowlevelLedgerException(e);
!         }
! 
      }
  
!     public BookBrowser browseRange(String book, Date from, Date until) throws LowlevelLedgerException {
!         try {
!             Session ses = factory.openSession();
!             Query q = ses.createQuery("from HTransactionItem item where item.book=? and item.transaction.transactionTime>=? and item.transaction.transactionTime<?");
!             q.setString(0, book);
!             q.setDate(1, from);
!             q.setDate(1, until);
!             Iterator iter = q.iterate();
!             return new HibernateBookBrowser(iter, book);
!         } catch (HibernateException e) {
!             throw new LowlevelLedgerException(e);
!         }
! 
      }
  

Index: HibernateBookBrowser.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate/HibernateBookBrowser.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** HibernateBookBrowser.java	25 Mar 2004 22:05:20 -0000	1.1
--- HibernateBookBrowser.java	26 Mar 2004 23:36:50 -0000	1.2
***************
*** 26,29 ****
--- 26,32 ----
  $Id$
  $Log$
+ Revision 1.2  2004/03/26 23:36:50  pelle
+ The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+ 
  Revision 1.1  2004/03/25 22:05:20  pelle
  First shell of the HibernateBookBrowser
***************
*** 43,47 ****
  
      public boolean next() throws LowlevelLedgerException {
!         return false;
      }
  
--- 46,63 ----
  
      public boolean next() throws LowlevelLedgerException {
!         if (!iter.hasNext())
!             return false;
!         HTransactionItem item = (HTransactionItem) iter.next();
!         final HTransaction tran = item.getTransaction();
!         String counterparty = null;
!         Iterator iter = tran.getItems().iterator();
!         while (iter.hasNext()) {
!             HTransactionItem party = (HTransactionItem) iter.next();
!             if (!party.getBook().equals(item.getBook())) {
!                 counterparty = party.getBook();
!             }
!         }
!         setRow(tran.getId(), tran.getRequestId(), counterparty, tran.getComment(), tran.getTransactionTime(), item.getAmount(), null, null, null);
!         return true;
      }
  

[Neuclear-develop] neuclear-ledger-hibernate/src/java hibernate.properties,1.6,1.7

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25398/src/java

Modified Files:
	hibernate.properties 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: hibernate.properties
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/hibernate.properties,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** hibernate.properties	26 Mar 2004 18:38:27 -0000	1.6
--- hibernate.properties	26 Mar 2004 23:36:50 -0000	1.7
***************
*** 299,303 ****
  ## print all generated SQL to the console
  
! hibernate.show_sql true
  
  
--- 299,303 ----
  ## print all generated SQL to the console
  
! #hibernate.show_sql true
  
  

[Neuclear-develop] neuclear-ledger-prevalent/src/test/org/neuclear/ledger/prevalent PrevalentLedgerTest.java,1.3,1.4

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-prevalent/src/test/org/neuclear/ledger/prevalent
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25381/src/test/org/neuclear/ledger/prevalent

Modified Files:
	PrevalentLedgerTest.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: PrevalentLedgerTest.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-prevalent/src/test/org/neuclear/ledger/prevalent/PrevalentLedgerTest.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** PrevalentLedgerTest.java	22 Mar 2004 23:20:58 -0000	1.3
--- PrevalentLedgerTest.java	26 Mar 2004 23:36:40 -0000	1.4
***************
*** 1,13 ****
  package org.neuclear.ledger.prevalent;
  
- import org.neuclear.commons.NeuClearException;
  import org.neuclear.ledger.Ledger;
  import org.neuclear.ledger.LowlevelLedgerException;
- import org.neuclear.ledger.UnknownLedgerException;
  import org.neuclear.ledger.tests.AbstractLedgerTest;
  
- import javax.naming.NamingException;
  import java.io.IOException;
- import java.sql.SQLException;
  
  /**
--- 1,9 ----
***************
*** 19,23 ****
   */
  public class PrevalentLedgerTest extends AbstractLedgerTest {
!     public PrevalentLedgerTest(String s) throws LowlevelLedgerException, UnknownLedgerException, SQLException, NamingException, IOException, NeuClearException {
          super(s);
      }
--- 15,19 ----
   */
  public class PrevalentLedgerTest extends AbstractLedgerTest {
!     public PrevalentLedgerTest(String s) {
          super(s);
      }

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/browser BookBrowser.java,1.3,1.4 LedgerBrowser.java,1.3,1.4

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/browser
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25331/src/java/org/neuclear/ledger/browser

Modified Files:
	BookBrowser.java LedgerBrowser.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: BookBrowser.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/browser/BookBrowser.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** BookBrowser.java	25 Mar 2004 22:04:45 -0000	1.3
--- BookBrowser.java	26 Mar 2004 23:36:34 -0000	1.4
***************
*** 3,8 ****
  import org.neuclear.ledger.LowlevelLedgerException;
  
! import java.math.BigDecimal;
! import java.sql.Timestamp;
  
  /*
--- 3,7 ----
  import org.neuclear.ledger.LowlevelLedgerException;
  
! import java.util.Date;
  
  /*
***************
*** 26,29 ****
--- 25,31 ----
  $Id$
  $Log$
+ Revision 1.4  2004/03/26 23:36:34  pelle
+ The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+ 
  Revision 1.3  2004/03/25 22:04:45  pelle
  The first shell for the HibernateBookBrowser
***************
*** 54,58 ****
  
  
!     protected final void setRow(String xid, String reqid, String counterparty, String comment, Timestamp valuetime, BigDecimal amount) {
          this.id = xid;
          this.reqid = reqid;
--- 56,60 ----
  
  
!     protected final void setRow(String xid, String reqid, String counterparty, String comment, Date valuetime, double amount, Date expirytime, Date cancelled, String completedId) {
          this.id = xid;
          this.reqid = reqid;
***************
*** 61,64 ****
--- 63,69 ----
          this.valuetime = valuetime;
          this.amount = amount;
+         this.cancelled = cancelled;
+         this.expirytime = expirytime;
+         this.completedId = completedId;
      }
  
***************
*** 83,94 ****
      }
  
!     public Timestamp getValuetime() {
          return valuetime;
      }
  
!     public BigDecimal getAmount() {
          return amount;
      }
  
      private final String book;
  
--- 88,115 ----
      }
  
!     public Date getValuetime() {
          return valuetime;
      }
  
!     public double getAmount() {
          return amount;
      }
  
+     public Date getExpirytime() {
+         return expirytime;
+     }
+ 
+     public Date getCancelled() {
+         return cancelled;
+     }
+ 
+     public String getCompletedId() {
+         return completedId;
+     }
+ 
+     boolean isHeld() {
+         return (expirytime != null);
+     }
+ 
      private final String book;
  
***************
*** 97,101 ****
      private String counterparty;
      private String comment;
!     private Timestamp valuetime;
!     private BigDecimal amount;
  }
--- 118,125 ----
      private String counterparty;
      private String comment;
!     private Date valuetime;
!     private Date expirytime;
!     private Date cancelled;
!     private String completedId;
!     private double amount;
  }

Index: LedgerBrowser.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/browser/LedgerBrowser.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** LedgerBrowser.java	21 Mar 2004 00:48:35 -0000	1.3
--- LedgerBrowser.java	26 Mar 2004 23:36:34 -0000	1.4
***************
*** 3,7 ****
  import org.neuclear.ledger.LowlevelLedgerException;
  
! import java.sql.Timestamp;
  
  /*
--- 3,7 ----
  import org.neuclear.ledger.LowlevelLedgerException;
  
! import java.util.Date;
  
  /*
***************
*** 25,28 ****
--- 25,31 ----
  $Id$
  $Log$
+ Revision 1.4  2004/03/26 23:36:34  pelle
+ The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+ 
  Revision 1.3  2004/03/21 00:48:35  pelle
  The problem with Enveloped signatures has now been fixed. It was a problem in the way transforms work. I have bandaided it, but in the future if better support for transforms need to be made, we need to rethink it a bit. Perhaps using the new crypto channel's in neuclear-commons.
***************
*** 45,50 ****
      public BookBrowser browse(String book) throws LowlevelLedgerException;
  
!     public BookBrowser browseFrom(String book, Timestamp from) throws LowlevelLedgerException;
  //    public BookBrowser browseUntil(Book book,Timestamp until);
!     public BookBrowser browseRange(String book, Timestamp from, Timestamp until) throws LowlevelLedgerException;
  }
--- 48,53 ----
      public BookBrowser browse(String book) throws LowlevelLedgerException;
  
!     public BookBrowser browseFrom(String book, Date from) throws LowlevelLedgerException;
  //    public BookBrowser browseUntil(Book book,Timestamp until);
!     public BookBrowser browseRange(String book, Date from, Date until) throws LowlevelLedgerException;
  }

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/tests AbstractLedgerBrowserTest.java,1.1,1.2

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/tests
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25331/src/java/org/neuclear/ledger/tests

Modified Files:
	AbstractLedgerBrowserTest.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: AbstractLedgerBrowserTest.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/tests/AbstractLedgerBrowserTest.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** AbstractLedgerBrowserTest.java	26 Mar 2004 18:37:56 -0000	1.1
--- AbstractLedgerBrowserTest.java	26 Mar 2004 23:36:34 -0000	1.2
***************
*** 8,14 ****
--- 8,19 ----
  import org.neuclear.ledger.browser.LedgerBrowser;
  
+ import java.util.Date;
+ 
  /*
  $Id$
  $Log$
+ Revision 1.2  2004/03/26 23:36:34  pelle
+ The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+ 
  Revision 1.1  2004/03/26 18:37:56  pelle
  More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.
***************
*** 29,44 ****
      public abstract Ledger getLedger() throws LowlevelLedgerException;
  
!     public void testIsBrowser() throws LowlevelLedgerException {
!         final Ledger ledger = getLedger();
          assertTrue("Ledger is instance of LedgerBrowser", ledger instanceof LedgerBrowser);
          ledger.close();
      }
  
      public void testAmountOfEntries() throws LowlevelLedgerException, InvalidTransactionException {
!         final Ledger ledger = getLedger();
!         assertTrue("Ledger is instance of LedgerBrowser", ledger instanceof LedgerBrowser);
  
!         final LedgerBrowser browser = (LedgerBrowser) ledger;
  
          final String bob = getBobBook();
          final String alice = getAliceBook();
--- 34,62 ----
      public abstract Ledger getLedger() throws LowlevelLedgerException;
  
!     protected void setUp() throws Exception {
!         ledger = getLedger();
          assertTrue("Ledger is instance of LedgerBrowser", ledger instanceof LedgerBrowser);
+         browser = (LedgerBrowser) ledger;
+     }
+ 
+     protected void tearDown() throws Exception {
          ledger.close();
      }
  
      public void testAmountOfEntries() throws LowlevelLedgerException, InvalidTransactionException {
!         final String bob = getBobBook();
!         final String alice = getAliceBook();
  
!         assertBookBrowserSize(bob, 0, browser.browse(bob));
!         assertBookBrowserSize(alice, 0, browser.browse(alice));
!         int i;
!         for (i = 0; i < 10; i++) {
!             ledger.transfer(bob, alice, 10, "test" + i);
!         }
!         assertBookBrowserSize(bob, i, browser.browse(bob));
!         assertBookBrowserSize(alice, i, browser.browse(alice));
!     }
  
+     public void testEntryContent() throws LowlevelLedgerException, InvalidTransactionException {
          final String bob = getBobBook();
          final String alice = getAliceBook();
***************
*** 50,58 ****
              ledger.transfer(bob, alice, 10, "test" + i);
          }
          assertBookBrowserSize(bob, i, browser.browse(bob));
          assertBookBrowserSize(alice, i, browser.browse(alice));
  
  
-         ledger.close();
      }
  
--- 68,144 ----
              ledger.transfer(bob, alice, 10, "test" + i);
          }
+         assertVerifyBrowserContent(bob, alice, -10, i, browser.browse(bob));
+         assertVerifyBrowserContent(alice, bob, 10, i, browser.browse(alice));
+ 
+ 
+     }
+ 
+     public void testAmountOfEntriesFromTime() throws LowlevelLedgerException, InvalidTransactionException {
+         final String bob = getBobBook();
+         final String alice = getAliceBook();
+ 
+         Date t1 = new Date();
+         assertBookBrowserSize(bob, 0, browser.browse(bob));
+         assertBookBrowserSize(alice, 0, browser.browse(alice));
+         int i;
+         for (i = 0; i < 10; i++) {
+             ledger.transfer(bob, alice, 10, "test" + i);
+         }
          assertBookBrowserSize(bob, i, browser.browse(bob));
          assertBookBrowserSize(alice, i, browser.browse(alice));
  
+         Date t2 = new Date();
+         assertTrue(t2.after(t1));
+ 
+         for (i = 0; i < 10; i++) {
+             ledger.transfer(bob, alice, 10, "test" + i);
+         }
+         assertBookBrowserSize(bob, 20, browser.browse(bob));
+         assertBookBrowserSize(alice, 20, browser.browse(alice));
+ 
+         assertBookBrowserSize(bob, 20, browser.browseFrom(bob, t1));
+         assertBookBrowserSize(alice, 20, browser.browseFrom(alice, t1));
+ 
+ 
+         assertBookBrowserSize(bob, i, browser.browseFrom(bob, t2));
+         assertBookBrowserSize(alice, i, browser.browseFrom(alice, t2));
+ 
+     }
+ 
+     public void testEntryContentFromTime() throws LowlevelLedgerException, InvalidTransactionException {
+         final String bob = getBobBook();
+         final String alice = getAliceBook();
+ 
+         assertBookBrowserSize(bob, 0, browser.browse(bob));
+         assertBookBrowserSize(alice, 0, browser.browse(alice));
+         int i;
+         for (i = 0; i < 10; i++) {
+             ledger.transfer(bob, alice, 10, "test" + i);
+         }
+         assertVerifyBrowserContent(bob, alice, -10, i, browser.browse(bob));
+         assertVerifyBrowserContent(alice, bob, 10, i, browser.browse(alice));
+ 
+ 
+     }
+ 
+ 
+     public void assertVerifyBrowserContent(final String book, final String counterparty, final double amount, final int count, final BookBrowser bb) throws LowlevelLedgerException {
+         assertNotNull("null book browser for " + book, bb);
+         int total = 0;
+         while (bb.next()) {
+             assertEquals("book", book, bb.getBook());
+             assertEquals("counterparty", counterparty, bb.getCounterparty());
+             assertEquals("amount", amount, bb.getAmount(), 0);
+             assertEquals("comment", "test" + total, bb.getComment());
+             assertNotNull("id", bb.getId());
+             assertNotNull("reqid", bb.getRequestId());
+             assertNotNull("valuetime", bb.getValuetime());
+             assertNull("expiry", bb.getExpirytime());
+             assertNull("cancelled", bb.getCancelled());
+             assertNull("completed", bb.getCompletedId());
+             total++;
+         }
+         assertEquals("The size doesnt match for: " + book, count, total);
  
      }
  
***************
*** 78,80 ****
--- 164,169 ----
      }
  
+     protected Ledger ledger;
+     protected LedgerBrowser browser;
+ 
  }

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/simple SimpleLedger.java,1.5,1.6

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25331/src/java/org/neuclear/ledger/simple

Modified Files:
	SimpleLedger.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: SimpleLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple/SimpleLedger.java,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** SimpleLedger.java	26 Mar 2004 18:37:56 -0000	1.5
--- SimpleLedger.java	26 Mar 2004 23:36:34 -0000	1.6
***************
*** 4,7 ****
--- 4,10 ----
   * $Id$
   * $Log$
+  * Revision 1.6  2004/03/26 23:36:34  pelle
+  * The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+  *
   * Revision 1.5  2004/03/26 18:37:56  pelle
   * More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.
***************
*** 86,90 ****
  import org.neuclear.ledger.browser.LedgerBrowser;
  
- import java.sql.Timestamp;
  import java.util.Date;
  import java.util.HashMap;
--- 89,92 ----
***************
*** 321,329 ****
      }
  
!     public BookBrowser browseFrom(String book, Timestamp from) throws LowlevelLedgerException {
          return null;
      }
  
!     public BookBrowser browseRange(String book, Timestamp from, Timestamp until) throws LowlevelLedgerException {
          return null;
      }
--- 323,331 ----
      }
  
!     public BookBrowser browseFrom(String book, Date from) throws LowlevelLedgerException {
          return null;
      }
  
!     public BookBrowser browseRange(String book, Date from, Date until) throws LowlevelLedgerException {
          return null;
      }

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/servlets LedgerServlet.java,1.5,1.6

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/servlets
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25331/src/java/org/neuclear/ledger/servlets

Modified Files:
	LedgerServlet.java 
Log Message:
The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.

Index: LedgerServlet.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/servlets/LedgerServlet.java,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** LedgerServlet.java	25 Mar 2004 22:04:46 -0000	1.5
--- LedgerServlet.java	26 Mar 2004 23:36:34 -0000	1.6
***************
*** 44,47 ****
--- 44,50 ----
  $Id$
  $Log$
+ Revision 1.6  2004/03/26 23:36:34  pelle
+ The simple browse(book) now works on hibernate, I have implemented the other two, which currently don not constrain the query correctly.
+ 
  Revision 1.5  2004/03/25 22:04:46  pelle
  The first shell for the HibernateBookBrowser
***************
*** 100,106 ****
              out.println("<table><tr><th>Transaction ID</th><th>Time</th><th>Counterparty</th><th>Comment</th><th>Amount</th></tr>");
              while (stmt.next()) {
!                 final BigDecimal amount = stmt.getAmount();
                  out.print("<tr");
!                 if (amount.compareTo(ZERO) < 0)
                      out.print(" class=\"negative\"");
                  out.print("><td style=\"size:small\">");
--- 103,109 ----
              out.println("<table><tr><th>Transaction ID</th><th>Time</th><th>Counterparty</th><th>Comment</th><th>Amount</th></tr>");
              while (stmt.next()) {
!                 final double amount = stmt.getAmount();
                  out.print("<tr");
!                 if (amount < 0)
                      out.print(" class=\"negative\"");
                  out.print("><td style=\"size:small\">");

[Neuclear-develop] neuclear-ledger-sql/src/java/org/neuclear/ledger/sql QueryBookBrowser.java,NONE,1.1 SQLLedger.java,1.3,1.4

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-sql/src/java/org/neuclear/ledger/sql
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv28097/src/java/org/neuclear/ledger/sql

Modified Files:
	SQLLedger.java 
Added Files:
	QueryBookBrowser.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

--- NEW FILE: QueryBookBrowser.java ---
package org.neuclear.ledger.sql;

import org.neuclear.commons.sql.statements.StatementFactory;
import org.neuclear.ledger.Ledger;
import org.neuclear.ledger.LowlevelLedgerException;
import org.neuclear.ledger.browser.BookBrowser;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;

/*
NeuClear Distributed Transaction Clearing Platform
(C) 2003 Pelle Braendgaard

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

$Id: QueryBookBrowser.java,v 1.1 2004/03/26 18:39:05 pelle Exp $
$Log: QueryBookBrowser.java,v $
Revision 1.1  2004/03/26 18:39:05  pelle
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

Revision 1.3  2004/03/25 22:04:46  pelle
The first shell for the HibernateBookBrowser

Revision 1.2  2004/03/21 00:48:35  pelle
The problem with Enveloped signatures has now been fixed. It was a problem in the way transforms work. I have bandaided it, but in the future if better support for transforms need to be made, we need to rethink it a bit. Perhaps using the new crypto channel's in neuclear-commons.

Revision 1.1  2004/01/02 23:18:34  pelle
Added StatementFactory pattern and refactored the ledger to use it.

Revision 1.1  2003/12/31 00:39:04  pelle
Added Drivers for handling different Database dialects in the entity model.
Added BookBrowser pattern to ledger, simplifying the statement writing process.

*/

/**
 * User: pelleb
 * Date: Dec 30, 2003
 * Time: 4:30:19 PM
 */
public class QueryBookBrowser extends BookBrowser {
    public QueryBookBrowser(Ledger ledger, String book, StatementFactory fact) throws SQLException {
        this(ledger, book, executeQuery(fact, ledger.getId(), book));
    }

    public QueryBookBrowser(Ledger ledger, String book, StatementFactory fact, Timestamp from, Timestamp until) throws SQLException {
        this(ledger, book, executeRangeQuery(fact, ledger.getId(), book, from, until));
    }

    public QueryBookBrowser(Ledger ledger, String book, StatementFactory fact, Timestamp from) throws SQLException {
        this(ledger, book, executeFromQuery(fact, ledger.getId(), book, from));
    }

    private QueryBookBrowser(Ledger ledger, String book, ResultSet rs) throws SQLException {
        super(book);
        this.rs = rs;
        next = rs.next();
        this.ledger = ledger;
    }

    private static ResultSet executeRangeQuery(StatementFactory fact, String ledgerid, String book, Timestamp from, Timestamp until) throws SQLException {
        final PreparedStatement stmt = fact.prepareStatement(RANGE_QUERY);
        stmt.setTimestamp(3, from);
        stmt.setTimestamp(4, until);
        return executeQuery(stmt, ledgerid, book);
    }

    private static ResultSet executeFromQuery(StatementFactory fact, String ledgerid, String book, Timestamp from) throws SQLException {
        final PreparedStatement stmt = fact.prepareStatement(FROM_QUERY);
        stmt.setTimestamp(3, from);
        return executeQuery(stmt, ledgerid, book);
    }

    private static ResultSet executeUntilQuery(StatementFactory fact, String ledgerid, String book, Timestamp until) throws SQLException {
        final PreparedStatement stmt = fact.prepareStatement(UNTIL_QUERY);
        stmt.setTimestamp(3, until);
        return executeQuery(stmt, ledgerid, book);
    }

    private static ResultSet executeQuery(StatementFactory fact, String ledgerid, String book) throws SQLException {
        return executeQuery(fact.prepareStatement(FULL_QUERY), ledgerid, book);
    }

    private static ResultSet executeQuery(PreparedStatement stmt, String ledgerid, String book) throws SQLException {
        stmt.setString(1, book);
        stmt.setString(2, ledgerid);
        return stmt.executeQuery();

    }

    public boolean next() throws LowlevelLedgerException {
        try {
            if (!rs.next())
                return false;
            setRow(rs.getString(1), rs.getString(2), rs.getString(4), rs.getString(5), rs.getTimestamp(3), rs.getBigDecimal(6));
            return true;
        } catch (SQLException e) {
            throw new LowlevelLedgerException(ledger, e);
        }
    }

    private final ResultSet rs;
    private final Ledger ledger;
    private boolean next;
    private static final String BASE_QUERY = "select t.id,t.request_id, t.valuetime, r.bookid,t.comment,s.amount from entry s,entry r, transaction t where s.transactionid=t.id and r.transactionid=t.id and r.id<>s.id\nand s.bookid = ? and t.ledgerid=?";
    private static final String UNTIL_CLAUSE = " AND t.valuetime<=?";
    private static final String FROM_CLAUSE = " AND t.valuetime>?";
    private static final String ORDERBY = " order by t.valuetime,t.id";

    private static final String FULL_QUERY = BASE_QUERY + ORDERBY;
    private static final String RANGE_QUERY = BASE_QUERY + FROM_CLAUSE + UNTIL_CLAUSE + ORDERBY;
    private static final String FROM_QUERY = BASE_QUERY + FROM_CLAUSE + ORDERBY;
    private static final String UNTIL_QUERY = BASE_QUERY + UNTIL_CLAUSE + ORDERBY;

}

Index: SQLLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-sql/src/java/org/neuclear/ledger/sql/SQLLedger.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** SQLLedger.java	25 Mar 2004 16:43:49 -0000	1.3
--- SQLLedger.java	26 Mar 2004 18:39:05 -0000	1.4
***************
*** 18,22 ****
  import org.neuclear.ledger.browser.BookBrowser;
  import org.neuclear.ledger.browser.LedgerBrowser;
- import org.neuclear.ledger.browser.QueryBookBrowser;
  
  import javax.transaction.UserTransaction;
--- 18,21 ----

[Neuclear-develop] neuclear-ledger-hibernate/src/java hibernate.properties,1.5,1.6

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27835/src/java

Modified Files:
	hibernate.properties 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

Index: hibernate.properties
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/hibernate.properties,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** hibernate.properties	25 Mar 2004 19:04:18 -0000	1.5
--- hibernate.properties	26 Mar 2004 18:38:27 -0000	1.6
***************
*** 27,31 ****
  #hibernate.connection.password
  #hibernate.connection.url jdbc:hsqldb:hsql://localhost
! #hibernate.connection.url jdbc:hsqldb:test
  #hibernate.connection.url jdbc:hsqldb:.
  
--- 27,31 ----
  #hibernate.connection.password
  #hibernate.connection.url jdbc:hsqldb:hsql://localhost
! #hibernate.connection.url jdbc:hsqldb:target/test-data/ledger
  #hibernate.connection.url jdbc:hsqldb:.
  

[Neuclear-develop] neuclear-ledger-hibernate/src/test/org/neuclear/ledger/hibernate HibernateBrowserTest.java,NONE,1.1

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/test/org/neuclear/ledger/hibernate
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27835/src/test/org/neuclear/ledger/hibernate

Added Files:
	HibernateBrowserTest.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

--- NEW FILE: HibernateBrowserTest.java ---
package org.neuclear.ledger.hibernate;

import org.neuclear.ledger.Ledger;
import org.neuclear.ledger.LowlevelLedgerException;
import org.neuclear.ledger.tests.AbstractLedgerBrowserTest;

/*
$Id: HibernateBrowserTest.java,v 1.1 2004/03/26 18:38:28 pelle Exp $
$Log: HibernateBrowserTest.java,v $
Revision 1.1  2004/03/26 18:38:28  pelle
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

*/

/**
 * User: pelleb
 * Date: Mar 26, 2004
 * Time: 1:00:05 PM
 */
public class HibernateBrowserTest extends AbstractLedgerBrowserTest {
    public HibernateBrowserTest(String name) {
        super(name);
    }

    public Ledger getLedger() throws LowlevelLedgerException {
        return new HibernateLedger("test");
    }
}

[Neuclear-develop] neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate HibernateLedger.java,1.8,1.9

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27835/src/java/org/neuclear/ledger/hibernate

Modified Files:
	HibernateLedger.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

Index: HibernateLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate/HibernateLedger.java,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** HibernateLedger.java	25 Mar 2004 21:40:45 -0000	1.8
--- HibernateLedger.java	26 Mar 2004 18:38:27 -0000	1.9
***************
*** 28,36 ****
  public final class HibernateLedger extends Ledger implements LedgerBrowser {
  
!     public HibernateLedger(final String id) throws UnknownLedgerException, LowlevelLedgerException {
          this(id, false);
      }
  
!     public HibernateLedger(final String id, final boolean create) throws LowlevelLedgerException, UnknownLedgerException {
          super(id);
  
--- 28,36 ----
  public final class HibernateLedger extends Ledger implements LedgerBrowser {
  
!     public HibernateLedger(final String id) throws LowlevelLedgerException {
          this(id, false);
      }
  
!     public HibernateLedger(final String id, final boolean create) throws LowlevelLedgerException {
          super(id);
  
***************
*** 369,373 ****
  
      public BookBrowser browse(String book) throws LowlevelLedgerException {
!         return null;
      }
  
--- 369,382 ----
  
      public BookBrowser browse(String book) throws LowlevelLedgerException {
!         try {
!             Session ses = factory.openSession();
!             Query q = ses.createQuery("from HTransactionItem item where item.book=?");
!             q.setString(0, book);
!             Iterator iter = q.iterate();
!             return new HibernateBookBrowser(iter, book);
!         } catch (HibernateException e) {
!             throw new LowlevelLedgerException(e);
!         }
! 
      }
  

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/simple SimpleLedger.java,1.4,1.5

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27650/src/java/org/neuclear/ledger/simple

Modified Files:
	SimpleLedger.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

Index: SimpleLedger.java
===================================================================
RCS file: /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/simple/SimpleLedger.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** SimpleLedger.java	25 Mar 2004 16:44:21 -0000	1.4
--- SimpleLedger.java	26 Mar 2004 18:37:56 -0000	1.5
***************
*** 4,7 ****
--- 4,10 ----
   * $Id$
   * $Log$
+  * Revision 1.5  2004/03/26 18:37:56  pelle
+  * More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.
+  *
   * Revision 1.4  2004/03/25 16:44:21  pelle
   * Added getTestBalance() and isBalanced() to Ledger to see if ledger is balanced.
***************
*** 80,88 ****
  
  import org.neuclear.ledger.*;
  
  import java.util.Date;
  import java.util.HashMap;
  import java.util.Iterator;
- import java.util.LinkedHashMap;
  
  /**
--- 83,93 ----
  
  import org.neuclear.ledger.*;
+ import org.neuclear.ledger.browser.BookBrowser;
+ import org.neuclear.ledger.browser.LedgerBrowser;
  
+ import java.sql.Timestamp;
  import java.util.Date;
  import java.util.HashMap;
  import java.util.Iterator;
  
  /**
***************
*** 90,100 ****
   * thread safe or supportive of transactions.
   */
! public final class SimpleLedger extends Ledger {
  
      public SimpleLedger(final String name) {
          super(name);
          id = name;
!         ledger = new LinkedHashMap();
!         held = new LinkedHashMap();
          balances = new HashMap();
  
--- 95,105 ----
   * thread safe or supportive of transactions.
   */
! public final class SimpleLedger extends Ledger implements LedgerBrowser {
  
      public SimpleLedger(final String name) {
          super(name);
          id = name;
!         ledger = new HashMap();
!         held = new HashMap();
          balances = new HashMap();
  
***************
*** 312,320 ****
      }
  
!     private final LinkedHashMap ledger;
!     private final LinkedHashMap held;
      private final String id;
      private final HashMap balances;
  
  
  }
--- 317,353 ----
      }
  
!     public BookBrowser browse(String book) throws LowlevelLedgerException {
!         return new SimpleBookBrowser(book);
!     }
! 
!     public BookBrowser browseFrom(String book, Timestamp from) throws LowlevelLedgerException {
!         return null;
!     }
! 
!     public BookBrowser browseRange(String book, Timestamp from, Timestamp until) throws LowlevelLedgerException {
!         return null;
!     }
! 
!     private final HashMap ledger;
!     private final HashMap held;
      private final String id;
      private final HashMap balances;
  
+     private class SimpleBookBrowser extends BookBrowser {
+         public SimpleBookBrowser(String book) {
+             super(book);
+             iter = ledger.keySet().iterator();
+             System.out.println("ledger contains: " + ledger.size());
+         }
+ 
+         public boolean next() throws LowlevelLedgerException {
+             if (!iter.hasNext())
+                 return false;
+ //            PostedTransaction tran=(PostedTransaction) ledger.get((iter.next()));
+             iter.next();
+             return true;
+         }
  
+         private final Iterator iter;
+     }
  }

[Neuclear-develop] neuclear-ledger/src/test/org/neuclear/ledger/browser SimpleLedgerBrowserTest.java,NONE,1.1

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/test/org/neuclear/ledger/browser
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27650/src/test/org/neuclear/ledger/browser

Added Files:
	SimpleLedgerBrowserTest.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

--- NEW FILE: SimpleLedgerBrowserTest.java ---
package org.neuclear.ledger.browser;

import org.neuclear.ledger.Ledger;
import org.neuclear.ledger.simple.SimpleLedger;
import org.neuclear.ledger.tests.AbstractLedgerBrowserTest;

/*
$Id: SimpleLedgerBrowserTest.java,v 1.1 2004/03/26 18:37:56 pelle Exp $
$Log: SimpleLedgerBrowserTest.java,v $
Revision 1.1  2004/03/26 18:37:56  pelle
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

*/

/**
 * User: pelleb
 * Date: Mar 26, 2004
 * Time: 12:17:25 PM
 */
public class SimpleLedgerBrowserTest extends AbstractLedgerBrowserTest {
    public SimpleLedgerBrowserTest(String name) {
        super(name);
    }

    public Ledger getLedger() {
        return new SimpleLedger("test browser");
    }
}

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/tests AbstractLedgerBrowserTest.java,NONE,1.1

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/tests
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27650/src/java/org/neuclear/ledger/tests

Added Files:
	AbstractLedgerBrowserTest.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

--- NEW FILE: AbstractLedgerBrowserTest.java ---
package org.neuclear.ledger.tests;

import junit.framework.TestCase;
import org.neuclear.ledger.InvalidTransactionException;
import org.neuclear.ledger.Ledger;
import org.neuclear.ledger.LowlevelLedgerException;
import org.neuclear.ledger.browser.BookBrowser;
import org.neuclear.ledger.browser.LedgerBrowser;

/*
$Id: AbstractLedgerBrowserTest.java,v 1.1 2004/03/26 18:37:56 pelle Exp $
$Log: AbstractLedgerBrowserTest.java,v $
Revision 1.1  2004/03/26 18:37:56  pelle
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

*/

/**
 * User: pelleb
 * Date: Mar 26, 2004
 * Time: 12:19:26 PM
 */
public abstract class AbstractLedgerBrowserTest extends TestCase {

    public AbstractLedgerBrowserTest(String name) {
        super(name);
    }

    public abstract Ledger getLedger() throws LowlevelLedgerException;

    public void testIsBrowser() throws LowlevelLedgerException {
        final Ledger ledger = getLedger();
        assertTrue("Ledger is instance of LedgerBrowser", ledger instanceof LedgerBrowser);
        ledger.close();
    }

    public void testAmountOfEntries() throws LowlevelLedgerException, InvalidTransactionException {
        final Ledger ledger = getLedger();
        assertTrue("Ledger is instance of LedgerBrowser", ledger instanceof LedgerBrowser);

        final LedgerBrowser browser = (LedgerBrowser) ledger;

        final String bob = getBobBook();
        final String alice = getAliceBook();

        assertBookBrowserSize(bob, 0, browser.browse(bob));
        assertBookBrowserSize(alice, 0, browser.browse(alice));
        int i;
        for (i = 0; i < 10; i++) {
            ledger.transfer(bob, alice, 10, "test" + i);
        }
        assertBookBrowserSize(bob, i, browser.browse(bob));
        assertBookBrowserSize(alice, i, browser.browse(alice));


        ledger.close();
    }

    public void assertBookBrowserSize(final String book, final int count, final BookBrowser bb) throws LowlevelLedgerException {
        assertNotNull("null book browser for " + book, bb);
        int total = 0;
        while (bb.next()) {
            total++;
        }
        assertEquals("The size doesnt match for: " + book, count, total);
    }

    public String getNewBook(String root) {
        return root + System.currentTimeMillis();
    }

    public String getBobBook() {
        return getNewBook("Roberto");
    }

    public String getAliceBook() {
        return getNewBook("Alicia");
    }

}

[Neuclear-develop] neuclear-ledger/src/java/org/neuclear/ledger/browser QueryBookBrowser.java,1.3,NONE

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/java/org/neuclear/ledger/browser
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27650/src/java/org/neuclear/ledger/browser

Removed Files:
	QueryBookBrowser.java 
Log Message:
More work on browsers. Added an AbstractLedgerBrowserTest for unit testing LedgerBrowsers.

--- QueryBookBrowser.java DELETED ---

[Neuclear-develop] neuclear-ledger/src/test/org/neuclear/ledger/browser - New directory

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger/src/test/org/neuclear/ledger/browser
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7803/src/test/org/neuclear/ledger/browser

Log Message:
Directory /cvsroot/neuclear/neuclear-ledger/src/test/org/neuclear/ledger/browser added to the repository

[Neuclear-develop] neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate HibernateBookBrowser.java,NONE,1.1

[Pelle B. <pe...@us...>]

Update of /cvsroot/neuclear/neuclear-ledger-hibernate/src/java/org/neuclear/ledger/hibernate
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv16357/src/java/org/neuclear/ledger/hibernate

Added Files:
	HibernateBookBrowser.java 
Log Message:
First shell of the HibernateBookBrowser


--- NEW FILE: HibernateBookBrowser.java ---
package org.neuclear.ledger.hibernate;

import org.neuclear.ledger.LowlevelLedgerException;
import org.neuclear.ledger.browser.BookBrowser;

import java.util.Iterator;

/*
NeuClear Distributed Transaction Clearing Platform
(C) 2003 Pelle Braendgaard

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

$Id: HibernateBookBrowser.java,v 1.1 2004/03/25 22:05:20 pelle Exp $
$Log: HibernateBookBrowser.java,v $
Revision 1.1  2004/03/25 22:05:20  pelle
First shell of the HibernateBookBrowser

*/

/**
 * User: pelleb
 * Date: Mar 25, 2004
 * Time: 10:00:41 PM
 */
public class HibernateBookBrowser extends BookBrowser {
    public HibernateBookBrowser(Iterator iter, String book) {
        super(book);
        this.iter = iter;
    }

    public boolean next() throws LowlevelLedgerException {
        return false;
    }

    private final Iterator iter;
}