Bug 221521 [Markers] New markers API needs to be pared down
We have too much API in some of the new classes and they can be moved to internals
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/ProblemFilter.java
*/
	public static final String TAG_SEVERITY = "severity"; 
	final static boolean DEFAULT_CONTAINS = true;
	final static String DEFAULT_DESCRIPTION = ""; 	
	final static boolean DEFAULT_SELECT_BY_SEVERITY = false;
	final static int DEFAULT_SEVERITY = 0;
	/**
	 * Severity for errors
	 */
	public final static int SEVERITY_ERROR = 1 << 2;
	/**
	 * Severity for warnings
	 */
	public final static int SEVERITY_WARNING = 1 << 1;
	/**
	 * Severity for infos
	 */
	public final static int SEVERITY_INFO = 1 << 0;
	private boolean contains;
	private String description;
	private boolean selectBySeverity;
	private int severity;
	private IPluginContribution contributionDescriptor = null;
	private IIdentifier identifier;
	/**
	 * Create a new instance of the receiver with name filterName.
	 * 
	 * @param filterName
	 *            A human readable name for the filter.
	 */