Bug 150776 Binding parameters of datasources are not evaluated when datasource in a library
I used to defined a datasource with binding parameters (depending on parameters ...). It works well when datasource is defined in the report, but when i tried to put this datasource in a library, binding expressions are not evaluated or not used by the datasource. When debugging the code, two datasources appears, the initial from the library (module=Library) and the linked from the report (module=ReportDesign). The dataset used the datasource of the report, but no binding values are found on the report datasource. The datasource from the library is evaluated correctly but not used.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
/**
	 * Gets a string that defines the event handle class.
	 * 
	 * @return the expression as a string
	 * 
	 * @see #setEventHandlerClass(String)
	 */
	public String getEventHandlerClass( )
	{
		return getStringProperty( GroupElement.EVENT_HANDLER_CLASS_PROP );
	}
	/**
	 * Sets the group expression.
	 * 
	 * @param expr
	 *            the expression to set
	 * @throws SemanticException
	 *             If the expression is invalid.
	 * 
	 * @see #getEventHandlerClass()
	 */
	public void setEventHandlerClass( String expr ) throws SemanticException
	{
		setProperty( GroupElement.EVENT_HANDLER_CLASS_PROP, expr );
	}
	/**
	 * Creates a template element handle and transforms the current element
	 * handle to the created template element.
	 * 
	 * @param name