Bug 120215 BPS 40 - DE changes
1. all report elements' properties will be overidable with an expression. The binding expression will have access to report parameter, and static BIRT report objects only. 2) DE will provide api to get property binding expression for a given property on a report element handle. It's up to the engine to evaluate the property binding expression when the report gets executed. DE API changes -------------------------- a) DesignElementHandle will support the following two methods. - String (expression) GetPropertyBinding ( propertyName ) - void SetPropertyBinding( propertyName , String (expression) ) // Note get and set property methods are wrapper classes which actually use reportDesignHandle methods to retrive and set the property binding. b) rom.def changes Property bindings contains a list of binding expressions. ReportDesign element will be enhanced to support a new property called. <Property canInherit="false" detailType="propertyBinding" displayNameID="Element.Module.propertyBindings" isList="true" name="propertyBindings" type="structure"/> A new datatype - <Structure name="propertybinding"> <Member name="name" since="2.0" type="name"/> <Member name="id" returnType="any" since="2.0" type="string"/> // Use the unique id used to identify an element. <Member name="value" returnType="string" since="2.0" type="expression"/> </Structure>
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/PropertyCommand.java
List list = ref.getList( module, element );
		if ( list == null )
			throw new PropertyValueException( element, ref.getPropDefn( ),
					null,
					PropertyValueException.DESIGN_EXCEPTION_ITEM_NOT_FOUND );
		ActivityStack stack = getActivityStack( );
		String label = ModelMessages
				.getMessage( MessageConstants.MOVE_ITEM_MESSAGE );
		int adjustedNewPosn = checkAndAdjustPosition( oldPosn, newPosn, list
				.size( ) );
		if ( oldPosn == adjustedNewPosn )
			return;
		stack.startTrans( label );
		makeLocalCompositeValue( ref );
		list = ref.getList( module, element );
		assert list != null;
		MoveListItemRecord record = new MoveListItemRecord( element, ref, list,
				oldPosn, adjustedNewPosn );
		stack.execute( record );
		stack.commit( );
	}
	/**
	 * The top level element property referenced by a member reference can be a
	 * list property or a structure property.
	 * <p>
	 * <li>If references a list property, the method will check to see if the
	 * current element has the local list value, if it has, the method returns,
	 * otherwise, a copy of the list value inherited from container or parent
	 * will be set locally on the element itself.
	 * <li>If references a structure property, the method will check to see if