public ExportGrouping(Grouping groupProperties, ExecutionCourse executionCourse) { this(); super.setGrouping(groupProperties); super.setExecutionCourse(executionCourse);
public ExportGrouping() { super(); setRootDomainObject(RootDomainObject.getInstance());
    public ExportGrouping(Grouping groupProperties,            ExecutionCourse executionCourse) {    	this();        super.setGrouping(groupProperties);        super.setExecutionCourse(executionCourse);    }