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
* <ul>
	 * <li>The element must exist in the effective value for the list. This
	 * means the list must be set on this element or a ancestor element.</li>
	 * <li>If the property is set on this element, then the element is simply
	 * replaced</li>
	 * <li>If the property is set on an ancestor element, then the inherited
	 * list is first copied into this element. Then, the copy of the target item
	 * is removed from the copy of the list.</li>
	 * </ul>
	 * 
	 * @param ref
	 *            The structure list reference.
	 * @param oldItem
	 *            the old item to be replaced
	 * @param newItem
	 *            the new item reference.
	 * @throws SemanticException
	 *             if the old item is not found or this property type is not
	 *             structure list.
	 */
	public void replaceItem( MemberRef ref, IStructure oldItem,
			IStructure newItem ) throws SemanticException
	{
		assert ref != null;
		PropertyDefn propDefn = ref.getPropDefn( );
		assert propDefn != null;
		assertExtendedElement( module, element, propDefn );
		checkListMemberRef( ref );
		List list = ref.getList( module, element );
		if ( list == null )