Bug 133776 Oda DesignerState support on OdaDataSource
OdaDataSet supported Oda DesignerState. This feature is also need in OdaDataSource. Please add OdaDesignerState property to OdaDataSource element in ROM. Make the related changes.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/StructureState.java
*/
	static IStructure createStructure( StructureDefn structDefn )
	{
		synchronized ( StructureState.class )
		{
			if ( structDict == null )
				populateStructDict( );
		}
		assert structDefn != null;
		assert structDict != null;
		IStructure struct = null;
		try
		{
			Class c = (Class) structDict.get( structDefn.getName( )
					.toLowerCase( ) );
			assert c != null;
			struct = (IStructure) c.newInstance( );
		}
		catch ( InstantiationException e )
		{
			assert false;
		}
		catch ( IllegalAccessException e )
		{
			assert false;
		}
		return struct;
	}
	/**
	 * Populates the dictionary for the structure class and name mapping.