Bug 152830 Need model's support to add jar files
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
property( obj, DataItem.RESULT_SET_COLUMN_PROP );
		resourceKey( obj, DataItem.HELP_TEXT_KEY_PROP, DataItem.HELP_TEXT_PROP );
		writeAction( obj, DataItem.ACTION_PROP );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitMultiLineDataItem(org.eclipse.birt.report.model.elements.TextDataItem)
	 */
	public void visitTextDataItem( TextDataItem obj )
	{
		
		boundColumnsMgr.dealTextData( obj, getModule( ) );
		writer.startElement( DesignSchemaConstants.TEXT_DATA_TAG );
		super.visitTextDataItem( obj );
		property( obj, TextDataItem.VALUE_EXPR_PROP );
		property( obj, TextDataItem.CONTENT_TYPE_PROP );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitExtendedItem(org.eclipse.birt.report.model.elements.ExtendedItem)
	 */
	public void visitExtendedItem( ExtendedItem obj )
	{
		
		boundColumnsMgr.dealExtendedItem( obj, getModule( ) );
		writer.startElement( DesignSchemaConstants.EXTENDED_ITEM_TAG );