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
List<String> filters = new ArrayList<String>( );
				List<String> locFilters = new ArrayList<String>( );
				for ( String operator : operators )
				{
					filters.add( operator );
					IFilterExprDefinition expr = OdaFilterExprHelper
							.getFilterExpressionDefn( operator, null, null );
					if ( expr != null )
					{
						locFilters.add( expr.getBirtFilterExprDisplayName( ulocale ) );
					}
					else
					{
						locFilters.add( null );
					}
				}
				parameter.setFilterOperatorList( filters );
				parameter.setFilterOperatorDisplayList( locFilters );
			}
			else
			{
				parameter.setFilterOperatorList( null );
				parameter.setFilterOperatorDisplayList( null );
			}
			
			currentElement = parameter;
		}
	}
}