Bug 196894 BIRT Cross tab, Cube - Time dimension enhancements
There were a couple of time dimension related enhancments planned post BIRT 2.2. This entry is to track those. This enhancments also includes - supporting additional predefined data time formats, that could make it easier to define data time dimension and use it in data items.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
}
	/*
	 * (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, ITextDataItemModel.VALUE_EXPR_PROP );
		property( obj, ITextDataItemModel.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 );
		ExtensionElementDefn extDefn = obj.getExtDefn( );
		if ( extDefn == null )
		{
			attribute( obj, DesignSchemaConstants.EXTENSION_NAME_ATTRIB,