Bug 123035 Serialize primitive types, hashmaps and other Java classes not using Java serialization method
If you take a look at the serialized engine output, we frequently see java classes appearing. I see String class; I see PageHint class; I see Hashmap classes. All of these should be gone so that BIRT document is independent of any Java-based class serialization. DtE team will move primitive type serialization to BIRT.CORE, see 123034. Engine can use that.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/DataExtractionTask.java
}
	
	public IExtractionResults extract( ) throws EngineException
	{
		if ( currentResult != null )
			return currentResult;
		
		if( instanceId != null )
		{
			return extractByInstanceId( );
		}
		else if( resultSetName != null )
		{
			return extractByResultSetName( );
		}
		return null;
	}
	
	/*
	 * export result directly from result set name
	 */
	private IExtractionResults extractByResultSetName( ) throws EngineException
	{
		assert resultSetName != null;
		assert executionContext.getDataEngine() != null;
		
		prepareMetaData( );
		
		DataEngine dataEngine = executionContext.getDataEngine().getDataEngine();
		try