Bug 213126 Add support for DataEngine-leve dataset cache
In many cases the DataEngine-leve dataset cache is useful which ensure that a dataset is executed one time during rendering one report. To support this feature a new dataset property should be added. The Birt customer can choose whether this dataset need to be cached or not by setting the property in deisgn time.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
}
			
			writeOverridenPropertyValues( obj );
		}
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.design.elements.DesignVisitor#visitTextItem(org.eclipse.birt.report.model.design.elements.TextItem)
	 */
	public void visitTextItem( TextItem obj )
	{
		
		boundColumnsMgr.dealText( obj, getModule( ) );
		writer.startElement( DesignSchemaConstants.TEXT_TAG );
		super.visitTextItem( obj );
		property( obj, ITextItemModel.CONTENT_TYPE_PROP );
		resourceKeyCDATA( obj, ITextItemModel.CONTENT_RESOURCE_KEY_PROP,
				ITextItemModel.CONTENT_PROP );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.design.elements.DesignVisitor#visitLabel(org.eclipse.birt.report.model.design.elements.Label)
	 */
	public void visitLabel( Label obj )
	{