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[Bigdata-commit] SF.net SVN: bigdata:[3637] branches/QUADS_QUERY_BRANCH
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From: <mar...@us...> - 2010-09-27 16:28:50
|
Revision: 3637
http://bigdata.svn.sourceforge.net/bigdata/?rev=3637&view=rev
Author: martyncutcher
Date: 2010-09-27 16:28:41 +0000 (Mon, 27 Sep 2010)
Log Message:
-----------
Checkin of CTC Striterators with revised license
Added Paths:
-----------
branches/QUADS_QUERY_BRANCH/ctc-striterators/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appender.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appenderator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ArrayIterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractor.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractorator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EmptyIterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EnumIterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ExclusionFilter.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expander.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expanderator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filter.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IFilter.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IStriterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXProperty.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXPropertyIterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapper.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapperator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Merger.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mergerator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolver.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolverator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/SingleValueIterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Sorter.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Sorterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Striterator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/UniquenessFilter.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Visitor.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Visitorator.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/XProperty.java
branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/XPropertyIterator.java
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appender.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appender.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appender.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,52 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Appender
+ *
+ * Used with Appenderator by Striterator to filter returned objects.
+ */
+
+public class Appender implements IFilter {
+ protected Iterator m_xtra = null;
+
+ public Appender() {}
+
+ public Appender(Iterator xtra) {
+ m_xtra = xtra;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Appenderator(src, (Iterator) m_xtra);
+ }
+
+ //-------------------------------------------------------------
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appender.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appenderator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appenderator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appenderator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,75 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * Appenderator
+ **/
+
+public class Appenderator implements Iterator {
+
+ Iterator m_src;
+ Iterator m_xtra;
+
+ Iterator m_current;
+
+ public Appenderator(Iterator src, Iterator xtra) {
+ m_src = src;
+ m_xtra = xtra;
+
+ m_current = m_src;
+ }
+
+ //-------------------------------------------------------------
+
+ public boolean hasNext() {
+ if (m_current.hasNext()) {
+ return true;
+ }
+
+ m_current = m_xtra;
+
+ return m_current.hasNext();
+ }
+
+ //-------------------------------------------------------------
+ // must call hasNext() to ensure m_current is correct
+ public Object next() {
+ if (hasNext()) {
+ return m_current.next();
+ }
+
+ throw new NoSuchElementException("FilterIterator");
+ }
+
+ //-------------------------------------------------------------
+
+ public void remove() {
+ m_current.remove();
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Appenderator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ArrayIterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ArrayIterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ArrayIterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,56 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Supports standard iteration over an object Array, allowing this to
+ * be used as a source for a <code>Striterator</code>.
+ */
+public class ArrayIterator implements Iterator {
+ Object[] m_src = null;
+ int m_index = 0;
+
+ /** Constructor takes source object array **/
+ public ArrayIterator(Object[] src) {
+ m_src = src;
+ }
+
+ /** checks with current index and array size **/
+ public boolean hasNext() {
+ return m_src != null && m_src.length > m_index;
+ }
+
+ /** @return current index from array **/
+ public Object next() {
+ return m_src[m_index++];
+ }
+
+ /** void .. does nothing **/
+ public void remove() {
+ }
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ArrayIterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractor.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractor.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractor.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,55 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Used with a Contractorator to contract an Expanded iterator
+ *
+ * The Contractorator will call contract on this object
+ * @author Martyn Cutcher
+ */
+public abstract class Contractor implements IFilter {
+
+ protected Object m_state = null;
+
+ public Contractor() { }
+
+ public Contractor(Object state) {
+ m_state = state;
+ }
+
+ //-------------------------------------------------------------
+
+ public Iterator filter(Iterator src) {
+ return new Contractorator(src, this);
+ }
+
+ //-------------------------------------------------------------
+
+ protected abstract Object contract(Iterator src);
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractor.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractorator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractorator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractorator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,76 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+/**
+ * A Contractorator is the reverse of an Expanderator. A Contractorator takes a
+ * source Iterator, and consumes elements from it in batches by passing to the
+ * Contractor which returns an object when ready. It is upto the Contractor to
+ * handle termination conditions. For example, it might batch consume the
+ * objects ten at a time with some summary info, but handle that there may be
+ * less than ten elements in the final summary.
+ *
+ * A Contractor could also be used to chunk up a number of objects for
+ * serialization, perhaps for network transmission. Such a pattern might be used
+ * with an Expander on the other side to deserialize into an iterator.
+ *
+ * @author Martyn Cutcher
+ */
+public class Contractorator implements Iterator {
+ Iterator m_src;
+ Contractor m_contractor;
+ Object m_next;
+
+ public Contractorator(Iterator src, Contractor contractor) {
+ m_src = src;
+ m_contractor = contractor;
+
+ m_next = m_contractor.contract(m_src);
+ }
+
+ public boolean hasNext() {
+ return m_next != null;
+ }
+
+ public Object next() {
+ if (m_next == null) {
+ throw new NoSuchElementException();
+ }
+
+ Object ret = m_next;
+ m_next = m_contractor.contract(m_src);
+
+ return ret;
+ }
+
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Contractorator.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EmptyIterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EmptyIterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EmptyIterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,50 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/***************************************************************************
+ * <p>Need to return an iterator to indicate that there's nothing there? Here's
+ * one ready made.</p>
+ *
+ * <p>It allows calls to be made without needing to check for a null iterator.</p>
+ */
+
+public final class EmptyIterator implements Iterator {
+ public boolean hasNext() {
+ return false;
+ }
+
+ public Object next() {
+ return null;
+ }
+
+ public void remove() {}
+
+ final static public EmptyIterator DEFAULT = new EmptyIterator();
+}
+
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EmptyIterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EnumIterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EnumIterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EnumIterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,54 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+import java.util.Enumeration;
+
+/**
+ * Wrapper for Enumeration objects to produce an Iterator.
+ */
+
+public class EnumIterator implements Iterator {
+
+ protected Enumeration m_enum = null;
+
+ public EnumIterator(Enumeration p_enum) {
+ m_enum = p_enum;
+ }
+
+ public boolean hasNext() {
+ return m_enum.hasMoreElements();
+ }
+
+ public Object next() {
+ return m_enum.nextElement();
+ }
+
+ public void remove() {
+ throw new UnsupportedOperationException("Remove Not Supported by underlying Enumeration");
+ }
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/EnumIterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ExclusionFilter.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ExclusionFilter.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ExclusionFilter.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,42 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+/******************************************************************************
+ * Derived from Filter, and excludes a single object from the iteration.
+ */
+public class ExclusionFilter extends Filter {
+ public ExclusionFilter(Object state) {
+ super(state);
+ }
+
+ /***********************************************************************
+ * Just make sure that the current object is not the one to be excluded.
+ **/
+ protected boolean isValid(Object obj) {
+ return obj != m_state;
+ }
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/ExclusionFilter.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expander.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expander.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expander.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,56 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Expander
+ *
+ * Used with Expanderator by Striterator to expand returned objects.
+ *
+ * Derivations must implement expand method.
+ */
+
+public abstract class Expander implements IFilter {
+ protected Object m_state = null;
+
+ public Expander() { }
+
+ public Expander(Object state) {
+ m_state = state;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Expanderator(src, this);
+ }
+
+ //-------------------------------------------------------------
+
+ protected abstract Iterator expand(Object obj);
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expander.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expanderator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expanderator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expanderator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,81 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * Expanderator
+ *
+ * Flattens out a two-level iteration. By combining Expanderators recursively a general tree
+ * iteration is provided.
+ *
+ * Provides resolution for both the child object and also the nested iterator.
+ * The actual expansion is via an Expander object that is passed in at construction.
+ */
+
+public class Expanderator implements Iterator {
+
+ Iterator m_src;
+ Iterator m_child = null;
+
+ Expander m_expander;
+
+ public Expanderator(Iterator src, Expander expander) {
+ m_src = src;
+ m_expander = expander;
+ }
+
+ //-------------------------------------------------------------
+
+ public boolean hasNext() {
+ if (m_child != null && m_child.hasNext()) {
+ return true;
+ } else if (m_src.hasNext()) {
+ m_child = m_expander.expand(m_src.next());
+
+ return hasNext();
+ } else {
+ return false;
+ }
+ }
+
+ //-------------------------------------------------------------
+ // must call hasNext() to ensure m_child is setup
+ public Object next() {
+ if (hasNext()) {
+ return m_child.next();
+ }
+
+ throw new NoSuchElementException("Expanderator");
+ }
+
+ //-------------------------------------------------------------
+
+ public void remove() {
+ m_child.remove();
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Expanderator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filter.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filter.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filter.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,52 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Used with Filterator by Striterator to filter returned objects.
+ */
+public abstract class Filter implements IFilter {
+
+ protected Object m_state = null;
+
+ public Filter() {}
+
+ public Filter(Object state) {
+ m_state = state;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Filterator(src, this);
+ }
+
+ //-------------------------------------------------------------
+
+ protected abstract boolean isValid(Object obj);
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filter.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,95 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * <p>Example usage</p>
+ * <pre>
+ * Iterator src = new Filterator(old, new Filter(state)) {
+ * boolean isValid(Object object) {
+ * return object == m_state;
+ * }
+ * } );
+ * </pre>
+ *
+ * <p>The Filterator provide the protocol support to utulise Filter objects.</p>
+ */
+
+public class Filterator implements Iterator {
+
+ Iterator m_src;
+ Object m_value = null;
+
+ protected Filter m_filter = null;
+
+ public Filterator(Iterator src, Filter filter) {
+ m_src = src;
+ m_filter = filter;
+
+ m_value = getNext();
+ }
+
+ //-------------------------------------------------------------
+
+ public boolean hasNext() {
+ return m_value != null;
+ }
+
+ //-------------------------------------------------------------
+ // must call hasNext() to ensure m_child is setup
+ public Object next() {
+ if (hasNext()) {
+ Object val = m_value;
+ m_value = getNext();
+
+ return val;
+ }
+
+ throw new NoSuchElementException("FilterIterator");
+ }
+
+ //-------------------------------------------------------------
+
+ public void remove() {
+ m_src.remove();
+ }
+
+ //-------------------------------------------------------------
+
+ protected Object getNext() {
+ while (m_src.hasNext()) {
+ Object next = m_src.next();
+
+ if (m_filter.isValid(next)) {
+ return next;
+ }
+ }
+
+ return null;
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Filterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IFilter.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IFilter.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IFilter.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,47 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+import java.io.Serializable;
+
+/**
+ * Provides the hook interface that allows use by Striterators
+ */
+public interface IFilter extends Serializable {
+ /**
+ * <p>The filter method is provided to allow the creation of the filtering iterator.</p>
+ *
+ * <p>Any implementation should follow the following pattern:</p>
+ * <pre>
+ * public Iterator filter(Iterator src) {
+ * return new Filterator(src, this);
+ * }
+ * </pre>
+ **/
+ public abstract Iterator filter(Iterator src);
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IFilter.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IStriterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IStriterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IStriterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,62 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.lang.reflect.Method;
+import java.util.Iterator;
+import java.util.Enumeration;
+
+/**
+ * IStriterator
+ *
+ * Extends the Iterator interface to expose methods to add IFilter objects and a specific Type filter
+ */
+
+public interface IStriterator extends Iterator, Enumeration {
+ /** Adds a Discriminating IFilter object **/
+ public IStriterator addFilter(IFilter filter);
+
+ /** check each object against cls.isInstance(object) **/
+ public IStriterator addTypeFilter(Class cls);
+
+ /** check each object against object.getClass() == cls **/
+ public IStriterator addInstanceOfFilter(Class cls);
+
+ /** exclude the passed object from the iteration **/
+ public IStriterator exclude(Object object);
+
+ /** append the passed iteration **/
+ public IStriterator append(Iterator iter);
+
+ /** Ensures the returned values appear only once **/
+ public IStriterator makeUnique();
+
+ /** map the clients method against the Iteration, the Method MUST take a single Object valued parameter.
+ * can be called by :
+ * iter.map(this, MyClass.aMethod);
+ **/
+ public IStriterator map(Object client, Method method);
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IStriterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXProperty.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXProperty.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXProperty.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,37 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+/** IXProperty.java
+ */
+
+public interface IXProperty {
+ /** Returns the key of the property **/
+ public String getKey();
+
+ /** Returns the value of the property **/
+ public Object getValue();
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXProperty.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXPropertyIterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXPropertyIterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXPropertyIterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,36 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+/**
+ * IXPropertyIterator
+ *
+ * A standard iterator, extended to provide a nextProperty method returning IXProperty objects
+ **/
+
+public interface IXPropertyIterator extends IStriterator {
+ public IXProperty nextProperty();
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/IXPropertyIterator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapper.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapper.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapper.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,64 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+import java.lang.reflect.Method;
+
+/**
+ * Mapper
+ *
+ * Used with Mapperator by Striterator to map instance methods against member objects.
+ */
+
+public class Mapper implements IFilter {
+ protected Object m_client = null;
+ protected Method m_method = null;
+ protected Object[] m_args = {null};
+
+ public Mapper(Object client, Method method) {
+ m_client = client;
+ m_method = method;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Mapperator(src, this);
+ }
+
+ //-------------------------------------------------------------
+
+ protected void apply(Object obj) {
+ try {
+ m_args[0] = obj;
+
+ m_method.invoke(m_client, m_args);
+ } catch (Exception e) {
+ throw new RuntimeException("Error on mapping method", e);
+ }
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapper.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapperator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapperator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapperator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,61 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * Mapperator
+ *
+ * Initialized with a Mapper object, wraps a standard iterator and calls apply on each object as it is iterated
+ */
+
+public class Mapperator implements Iterator {
+
+ Iterator m_iter;
+ Mapper m_mapper;
+
+ public Mapperator(Iterator iter, Mapper mapper) {
+ m_iter = iter;
+ m_mapper = mapper;
+ }
+
+ public boolean hasNext() {
+ return m_iter.hasNext();
+ }
+
+ public Object next() {
+ Object obj = m_iter.next();
+
+ m_mapper.apply(obj);
+
+ return obj;
+ }
+
+ public void remove() {
+ m_iter.remove();
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mapperator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Merger.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Merger.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Merger.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,53 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+import java.util.Comparator;
+
+/**
+ * Used with Mergerator by Striterator to merge returned objects.
+ */
+
+public class Merger implements IFilter {
+ protected Iterator m_xtra = null;
+ protected Comparator m_comparator = null;
+
+ public Merger() {}
+
+ public Merger(Iterator xtra, Comparator comparator) {
+ m_xtra = xtra;
+ m_comparator = comparator;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Mergerator(src, m_xtra, m_comparator);
+ }
+
+ //-------------------------------------------------------------
+}
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Merger.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mergerator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mergerator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mergerator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,88 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * Merges two sorted lists removing equal objects. For example, two sorted
+ * lists of Strings to create a single list with no duplicates.
+ **/
+public class Mergerator implements Iterator {
+
+ Iterator m_setA;
+ Iterator m_setB;
+ Comparator m_comparator;
+
+ Object m_valA = null;
+ Object m_valB = null;
+
+ public Mergerator(Iterator setA, Iterator setB, Comparator comparator) {
+ m_setA = setA;
+ m_setB = setB;
+
+ m_comparator = comparator;
+
+ if (m_setA.hasNext()) {
+ m_valA = m_setA.next();
+ }
+
+ if (m_setB.hasNext()) {
+ m_valB = m_setB.next();
+ }
+ }
+
+ //-------------------------------------------------------------
+
+ public boolean hasNext() {
+ return m_valA != null || m_valB != null;
+ }
+
+ //-------------------------------------------------------------
+ // must call hasNext() to ensure m_current is correct
+ public Object next() {
+ if (hasNext()) {
+ Object retVal = null;
+
+ if (m_valB == null || (m_valA != null && (m_comparator.compare(m_valA, m_valB) <= 0))) {
+ retVal = m_valA;
+ m_valA = m_setA.hasNext() ? m_setA.next() : null;
+ } else {
+ retVal = m_valB;
+ m_valB = m_setB.hasNext() ? m_setB.next() : null;
+ }
+ return retVal;
+ } else {
+ throw new NoSuchElementException("Mergerator");
+ }
+ }
+
+ //-------------------------------------------------------------
+
+ public void remove() {
+ throw new RuntimeException("Cannot remove object from merged set");
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Mergerator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolver.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolver.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolver.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,56 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.Iterator;
+
+/**
+ * Resolver
+ *
+ * Used with Resolverator by Striterator to resolve returned objects.
+ *
+ * Cannot be instantiated directly since an implementation of the resolve method is required.
+ */
+
+public abstract class Resolver implements IFilter {
+ protected Object m_state = null;
+
+ public Resolver() {}
+
+ public Resolver(Object state) {
+ m_state = state;
+ }
+
+ //-------------------------------------------------------------
+
+ final public Iterator filter(Iterator src) {
+ return new Resolverator(src, this);
+ }
+
+ //-------------------------------------------------------------
+
+ protected abstract Object resolve(Object obj);
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolver.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolverator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolverator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolverator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,57 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/**
+ * Resolverator
+ *
+ * Initialized with a Resolver object, wraps a standard iterator and resolves each returned object
+ */
+
+public class Resolverator implements Iterator {
+
+ Iterator m_iter;
+ Resolver m_resolver;
+
+ public Resolverator(Iterator iter, Resolver resolver) {
+ m_iter = iter;
+ m_resolver = resolver;
+ }
+
+ public boolean hasNext() {
+ return m_iter.hasNext();
+ }
+
+ public Object next() {
+ return m_resolver.resolve(m_iter.next());
+ }
+
+ public void remove() {
+ m_iter.remove();
+ }
+}
\ No newline at end of file
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/Resolverator.java
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mime-type
+ text/plain
Added: svn:keywords
+ Id Date Revision Author HeadURL
Added: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/SingleValueIterator.java
===================================================================
--- branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/SingleValueIterator.java (rev 0)
+++ branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/utils/striterators/SingleValueIterator.java 2010-09-27 16:28:41 UTC (rev 3637)
@@ -0,0 +1,61 @@
+/*
+Striterator - transformation and mapping patterns over java Iterators
+
+Copyright (C) SYSTAP, LLC 2010. All rights reserved.
+
+Contact:
+ SYSTAP, LLC
+ 4501 Tower Road
+ Greensboro, NC 27410
+ lic...@bi...
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package cutthecrap.utils.striterators;
+
+import java.util.*;
+
+/***************************************************************************
+ * SingleValueIterator
+ *
+ * Only one value but need to return an iterator? This makes it easy.
+ */
+
+ public class SingleValueIterator implements Iterator {
+ Object m_value;
+ boolean m_hasNext = true;
+
+ public SingleValueIterator(Object value) {
+ m_value = value;
+ }
+ public boolean hasNext() {
+ return m_hasNext;
+ }
+ public Object next() {
+ if (!m_hasNext) {
+ m_value = null;
+ } else {
+ m_hasNext = false;
+ }
+
+ return m_value;
+ }
+ public void remove() {
+ m_hasNext = false;
+ m_value = null;
+ }
+}
+
+
Property changes on: branches/QUADS_QUERY_BRANCH/ctc-striterators/src/java/cutthecrap/util...
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