Bug 208055 [Markers] Need a sorting method for the markers view
As there is currently no accessible way to change sort order or direction. A menu should be enough.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/MarkerContentGenerator.java
MarkerFieldFilterGroup next = (MarkerFieldFilterGroup) filtersIterator
						.next();
				if (next.isEnabled())
					enabledFilters.add(next);
			}
		}
		return enabledFilters;
	}
	/**
	 * Return a collection of all of the configuration fields for this generator
	 * 
	 * @return Collection of {@link FilterConfigurationArea}
	 */
	public Collection createFilterConfigurationFields() {
		Collection result = new ArrayList();
		for (int i = 0; i < visibleFields.length; i++) {
			FilterConfigurationArea area = visibleFields[i]
					.generateFilterArea();
			if (area != null)
				result.add(area);
		}
		return result;
	}
	/**
	 * Return the id of the receiver.
	 * 
	 * @return String
	 */
	public String getId() {
		return configurationElement