Bug 183918 get relative file path of linkage library
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/ComplexPropertyCommand.java
stack.startTrans( ModelMessages
				.getMessage( MessageConstants.ADD_ITEM_MESSAGE ) );
		makeLocalCompositeValue( prop );
		list = element.getListProperty( module, prop.getName( ) );
		if ( null == list )
		{
			list = new ArrayList( );
			PropertyRecord propRecord = new PropertyRecord( element, prop, list );
			stack.execute( propRecord );
		}
		SimplePropertyListRecord record = new SimplePropertyListRecord(
				element, prop, list, value, list.size( ) );
		record.setEventTarget( getEventTarget( prop ) );
		stack.execute( record );
		if ( value instanceof ElementRefValue )
		{
			ElementRefValue refValue = (ElementRefValue) value;
			if ( refValue.isResolved( ) )
			{
				ElementRefRecord refRecord = new ElementRefRecord( element,
						refValue.getTargetElement( ), prop.getName( ), true );
				stack.execute( refRecord );
			}
		}
		stack.commit( );
	}
	/**
	 * Inserts an item to a structure list.
	 * <ul>
	 * <li>If the property is currently unset anywhere up the inheritance