Bug 129812 [Markers] Enabling problem categorization per default
Build 3.2M5 Recent progress on problem categorization should be made more proeminent by enabling categorization by default. Similar to search view doing hierarchical presentation by default nowadays.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
import org.eclipse.ui.actions.ContributionItemFactory;
import org.eclipse.ui.actions.SelectionProviderAction;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.ide.ResourceUtil;
import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
import org.eclipse.ui.part.IShowInSource;
import org.eclipse.ui.part.MarkerTransfer;
import org.eclipse.ui.part.ShowInContext;
import org.eclipse.ui.preferences.ViewPreferencesAction;
import org.eclipse.ui.progress.IWorkbenchSiteProgressService;
import org.eclipse.ui.progress.WorkbenchJob;
import org.eclipse.ui.views.markers.internal.MarkerAdapter.MarkerCategory;
import org.eclipse.ui.views.tasklist.ITaskListResourceAdapter;
/**
 * MarkerView is the abstract super class of the marker based views.
 * 
 */
public abstract class MarkerView extends TableView {
	private static final String TAG_SELECTION = "selection"; 
	private static final String TAG_MARKER = "marker"; 
	private static final String TAG_RESOURCE = "resource"; 
	private static final String TAG_ID = "id"; 
	private static final String TAG_FILTERS_SECTION = "filters"; 
	private static final String TAG_FILTER_ENTRY = "filter"; 
	private static final String MENU_FILTERS_GROUP = "group.filter";
	private static final String MENU_SHOW_IN_GROUP = "group.showIn";
	
	private static final String OLD_FILTER_SECTION = "filter"; 
	private class MarkerProcessJob extends Job {