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/core/DesignElement.java
*/
	public List getErrors( )
	{
		if ( errors == null )
			return new ArrayList( );
		return errors;
	}
	/**
	 * Returns the identifier for locating element to user. This identifier
	 * string helps user locate this element in user interface. If this element
	 * has name defined, the name and element type are returned with the form
	 * "ElementType('Name')". Otherwise, locate the first container with name
	 * and generate the containment path with the form,
	 * "Container.Slot[Position]". If no container has name defined, "report" or
	 * container element type will be used as container's identifier, depending
	 * on whether this element is added into one report design.
	 * <p>
	 * For example,
	 * <ul>
	 * <li>report.body[0] - The first element in body slot
	 * <li>table("myTable") - The table named myTable
	 * <li>table("myTable").detail[0].cells[3] - The forth cell of the first
	 * row in table
	 * </ul>
	 * <p>
	 * Note: the localized name is used for element type and slot name.
	 * 
	 * @return the identifier of this element
	 */
	public String getIdentifier( )