Bug 120691 [Markers] Expanded categories not persisted between sessions
build I20051213 - in the Problems view in hierarchical mode, with many problems showing, - expand a few categories, select some leaf problems - shutdown / restart - the tree is collapsed Users will expect that the work they did to expand/collapse categories to see the problems they care most about will be persisted between sessions.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
newSelection.add(marker);
				}
			}
		}
		viewer.setSelection(new StructuredSelection(newSelection), reveal);
	}
	/**
	 * Return the ids of the generators specified for the receiver.
	 * 
	 * @return String[]
	 */
	String[] getGeneratorIds() {
		return defaultGeneratorIds;
	}
	/**
	 * Turn off all filters in the builder.
	 */
	void disableAllFilters() {
		builder.disableAllFilters();
	}
	/**
	 * Return the builder for the receiver.
	 * 
	 * @return CachedMarkerBuilder
	 */
	CachedMarkerBuilder getBuilder() {
		return builder;
	}
}