[Equanda-svn-commit] SF.net SVN: equanda: [157] trunk/equanda-client/src/main/java/org/equanda/ persistence/om/LazyList.java

[<tri...@us...>]

Revision: 157
          http://equanda.svn.sourceforge.net/equanda/?rev=157&view=rev
Author:   triathlon98
Date:     2007-11-19 23:22:02 -0800 (Mon, 19 Nov 2007)

Log Message:
-----------
EQ-85 add refresh method

Modified Paths:
--------------
    trunk/equanda-client/src/main/java/org/equanda/persistence/om/LazyList.java

Modified: trunk/equanda-client/src/main/java/org/equanda/persistence/om/LazyList.java
===================================================================
--- trunk/equanda-client/src/main/java/org/equanda/persistence/om/LazyList.java	2007-11-20 06:28:59 UTC (rev 156)
+++ trunk/equanda-client/src/main/java/org/equanda/persistence/om/LazyList.java	2007-11-20 07:22:02 UTC (rev 157)
@@ -36,16 +36,16 @@
 /**
  * Abstract base class for LazyList instances.
  * <p/>
- * A LazyList tries to get the resultset in batches if possible. The batch size if configurable.
- * These batches are cached and the expiration timeout for this cache is also configurable.
+ * A LazyList tries to get the resultset in batches if possible. The batch size if configurable. These batches are
+ * cached and the expiration timeout for this cache is also configurable.
  * <p/>
- * When an element is obtained, an attempt is made to get the data from the cache.
- * If the cache is stale (timeout exceeded), then the instance is refreshed (to minimize the number of full selectors).
+ * When an element is obtained, an attempt is made to get the data from the cache. If the cache is stale (timeout
+ * exceeded), then the instance is refreshed (to minimize the number of full selectors).
  * <p/>
  * For resultsets which cannot be batched (ADD on subselects), the full list of UOIDs for the elements is maintained.
  * <p/>
- * Depending on some conditions, it is possible that the size() method does not function.
- * In that case it will throw an exception. isEmpty should always function.
+ * Depending on some conditions, it is possible that the size() method does not function. In that case it will throw an
+ * exception. isEmpty should always function.
  * <p/>
  * The behaviour is optimized for (forward) iteration of the list.
  *
@@ -136,9 +136,8 @@
     private int endOfCache;     // index just past the last element (in the results) (may be first of the next batch)
 
     /**
-     * Timestamp after which cache is stale.
-     * This is declared transient to cater for difference in time between the server and client system.
-     * The timestamp is set when first accessed after serialization.
+     * Timestamp after which cache is stale. This is declared transient to cater for difference in time between the
+     * server and client system. The timestamp is set when first accessed after serialization.
      */
     private transient long timeCache; // timestamp after which cache is stale
 
@@ -244,7 +243,7 @@
                 // size() should still be done for selector with SubSelects and "add" operator
                 long min = Math.min( getCacheCapacity(), fullSize() - index );
                 size = ( min > Integer.MAX_VALUE ) ? Integer.MAX_VALUE : (int) min;
-                UOID[] uoids = new UOID[ size ];
+                UOID[] uoids = new UOID[size];
                 for ( int i = 0; i < size ; i++ )
                 {
                     uoids[ i ] = getUOID( i + index );
@@ -484,7 +483,7 @@
         throw new UnsupportedOperationException( "toArray() unsupported" );
     }
 
-    public <T>T[] toArray( T[] ts )
+    public <T> T[] toArray( T[] ts )
     {
         throw new UnsupportedOperationException( "toArray(T[]) unsupported" );
     }
@@ -553,4 +552,14 @@
     {
         throw new UnsupportedOperationException( "subList(int,int) unsupported" );
     }
+
+    /**
+     * refresh list, force release cache
+     */
+    public void refresh()
+    {
+        timeCache = 0;
+        cache = null;
+        data = null;
+    }
 }


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