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#visitCascadingParameterGroup(org.eclipse.birt.report.model.elements.CascadingParameterGroup)
	 */
	public void visitCascadingParameterGroup( CascadingParameterGroup obj )
	{
		writer
				.startElement( DesignSchemaConstants.CASCADING_PARAMETER_GROUP_TAG );
		super.visitParameterGroup( obj );
		property( obj, IParameterGroupModel.START_EXPANDED_PROP );
		resourceKey( obj, IParameterGroupModel.HELP_TEXT_KEY_PROP,
				IParameterGroupModel.HELP_TEXT_PROP );
		property( obj, ICascadingParameterGroupModel.DATA_SET_PROP );
		property( obj, ICascadingParameterGroupModel.PROMPT_TEXT_PROP );
		property( obj, ICascadingParameterGroupModel.DATA_SET_MODE_PROP );
		writeContents( obj, IParameterGroupModel.PARAMETERS_SLOT,
				DesignSchemaConstants.PARAMETERS_TAG );
		writeOverridenPropertyValues( obj );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitScalarParameter(org.eclipse.birt.report.model.elements.ScalarParameter)
	 */
	public void visitScalarParameter( ScalarParameter obj )
	{
		
		boundColumnsMgr.dealScalarParameter( obj, getModule( ) );
		writer.startElement( DesignSchemaConstants.SCALAR_PARAMETER_TAG );