[jboss-user] [JBossCache] - Re: TreeCache/Hibernate/JBossAS optimistic locking problem

[steve.ebersole@jboss.com]

Here is the test to which I refer, which works (from the Hibernate test suite):

  | 	public void testNoVersioningProvided() throws Throwable {
  | 		// note : mimic query cache interactions...
  | 		Fqn fqn = Fqn.fromString( "org/hibernate/querycache" );
  | 		TreeCache treeCache = ( ( OptimisticTreeCacheProvider ) sfi().getSettings().getCacheProvider() ).getUnderlyingCache();
  | 
  | 		Long long1 = new Long(1);
  | 		Long long2 = new Long(2);
  | 
  | 		Option option = new Option();
  | 		option.setFailSilently( true );
  | 
  | 		try {
  | 			System.out.println( "****** General put... *******************************************" );
  | 			DummyTransactionManager.INSTANCE.begin();
  | 			treeCache.put( fqn, "ITEM1", long1, option );
  | 			DummyTransactionManager.INSTANCE.commit();
  | 			System.out.println( "****** General put... *******************************************" );
  | 			DummyTransactionManager.INSTANCE.begin();
  | 			treeCache.put( fqn, "ITEM1", long2, option );
  | 			DummyTransactionManager.INSTANCE.commit();
  | 
  | 			System.out.println( "****** General put... *******************************************" );
  | 			DummyTransactionManager.INSTANCE.begin();
  | 			treeCache.put( fqn, "ITEM2", long1, option );
  | 			DummyTransactionManager.INSTANCE.commit();
  | 
  | 			// try puts outside scope of transaction...
  | 			System.out.println( "****** No-txn put... *******************************************" );
  | 			treeCache.put( fqn, "ITEM1", long2, option );
  | 			System.out.println( "****** No-txn put... *******************************************" );
  | 			treeCache.put( fqn, "ITEM2", long2, option );
  | 
  | 			// actual processing in handling a cached query
  | 			System.out.println( "****** actual query cache put logic ****************************" );
  | 			DummyTransactionManager.INSTANCE.begin();
  | 			if ( treeCache.get( fqn, "ITEM3", option ) == null ) {
  | 				// run the query, then put...
  | 				treeCache.put(  fqn, "ITEM3", long1, option );
  | 			}
  | 			System.out.println( "****** actual query cache put logic ****************************" );
  | 			if ( treeCache.get( fqn, "ITEM3", option ) == null ) {
  | 				// run the query, then put...
  | 				treeCache.put(  fqn, "ITEM3", long1, option );
  | 			}
  | 			DummyTransactionManager.INSTANCE.commit();
  | 
  | 			// actual processing in handling a cached query (no txn)
  | 			System.out.println( "****** actual query cache put logic ****************************" );
  | 			if ( treeCache.get( fqn, "ITEM3", option ) == null ) {
  | 				// run the query, then put...
  | 				treeCache.put(  fqn, "ITEM3", long1, option );
  | 			}
  | 			System.out.println( "****** actual query cache put logic ****************************" );
  | 			if ( treeCache.get( fqn, "ITEM3", option ) == null ) {
  | 				// run the query, then put...
  | 				treeCache.put(  fqn, "ITEM3", long1, option );
  | 			}
  | 		}
  | 		finally {
  | 			try {
  | 				treeCache.remove( fqn, "ITEM1", option );
  | 				treeCache.remove( fqn, "ITEM2", option );
  | 				treeCache.remove( fqn, "ITEM3", option );
  | 			}
  | 			catch( Throwable ignore ) {
  | 			}
  | 		}
  | 	}
  | 

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