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/api/DesignElementHandle.java
*             the element can not be localized properly. It may be because
	 *             that the element is not extended from a parent, or that same
	 *             properties can not be localized on the element or the content
	 *             elements inside it.
	 */
	public void localize( ) throws SemanticException
	{
		DesignElement element = getElement( );
		ExtendsCommand cmd = new ExtendsCommand( module, element );
		cmd.localizeElement( );
	}
	/**
	 * Sets this element to extend the given element.
	 * 
	 * @param parent
	 *            the element that this element is to extend
	 * @throws ExtendsException
	 *             If the parent element is of the wrong type as this element.
	 */
	public void setExtendsElement( DesignElement parent )
			throws ExtendsException
	{
		ExtendsCommand cmd = new ExtendsCommand( module, getElement( ) );
		cmd.setExtendsElement( parent );
	}
	/**
	 * Returns the shared style, if any, as a style handle. A shared style is a
	 * style that defines in the "styles" slot of the report design.
	 * 
	 * @return a handle to the shared style used by this element. Returns null