Bug 314631 Cann't get correct default values for parameters that with non-constant default value expressions
Steps to reproduce: 1. create a report with a scalar parameter that has non-constant default value expression such as BirtDateTime.today() 2. setup a project to get the default values of the parameter in BIRT runtime Eg. IReportEngine engine = createReportEngine( ); IRunnable runnable = engine.openReportDesign( REPORT_DESIGN ); IGetParamaterDefinitionTask task = engine.createGetParameterDefinitionTask( runnable ); HashMap result = task.getDefaultValues(); Expect result: The result map contains a parameter name and default value pair in which the default value is a Date instance of today. Actural result: The default value is null.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
}
		public void visitScalarParameter( ScalarParameterHandle handle )
		{
			assert ( handle.getName( ) != null );
			
			ScalarParameterDefn scalarParameter = new ScalarParameterDefn( );
			scalarParameter.setHandle( handle );
			scalarParameter.setLocale( ulocale.toLocale( ) );
			scalarParameter.setParameterType( IParameterDefnBase.SCALAR_PARAMETER );
			scalarParameter.setName( handle.getName( ) );
			
			List properties = handle.getUserProperties( );
			for ( int i = 0; i < properties.size( ); i++ )
			{
				UserPropertyDefn p = (UserPropertyDefn) properties.get( i );
				Expression expression = ExpressionUtil
						.createUserProperty( handle, p );
				Object value = ExpressionUtil.evaluate( executionContext,
														expression );
				scalarParameter.addUserProperty( p.getName( ), value );
			}
			String align = handle.getAlignment( );
			if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_CENTER.equals( align ) )
				scalarParameter.setAlignment( IScalarParameterDefn.CENTER );
			else if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_LEFT.equals( align ) )
				scalarParameter.setAlignment( IScalarParameterDefn.LEFT );
			else if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_RIGHT.equals( align ) )
				scalarParameter.setAlignment( IScalarParameterDefn.RIGHT );
			else
				scalarParameter.setAlignment( IScalarParameterDefn.AUTO );