Bug 55628 Ctrl+o Filters not persistent when set via view menu
I20040322
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/CustomFiltersActionGroup.java
* Overridden to always return true and force dynamic menu building.
		 */
		public boolean isDynamic() {
			return true;
		}
	}
	private static final String TAG_CUSTOM_FILTERS = "customFilters"; 
	private static final String TAG_USER_DEFINED_PATTERNS_ENABLED= "userDefinedPatternsEnabled"; 
	private static final String TAG_USER_DEFINED_PATTERNS= "userDefinedPatterns"; 
	private static final String TAG_XML_DEFINED_FILTERS= "xmlDefinedFilters"; 
	private static final String TAG_LRU_FILTERS = "lastRecentlyUsedFilters"; 
	private static final String TAG_CHILD= "child"; 
	private static final String TAG_PATTERN= "pattern"; 
	private static final String TAG_FILTER_ID= "filterId"; 
	private static final String TAG_IS_ENABLED= "isEnabled"; 
	private static final String SEPARATOR= ",";  
	private static final int MAX_FILTER_MENU_ENTRIES= 3;
	private static final String RECENT_FILTERS_GROUP_NAME= "recentFiltersGroup"; 
	private StructuredViewer fViewer;
	private NamePatternFilter fPatternFilter;
	private Map fInstalledBuiltInFilters;
	
	private Map fEnabledFilterIds;
	private boolean fUserDefinedPatternsEnabled;
	private String[] fUserDefinedPatterns;
	/**
	 * Recently changed filter Ids stack with oldest on top (i.e. at the end).
	 *
	 * @since 3.0
	 */