Bug 119603 [api][content assist] allow contributions to filter and sort proposals
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
*/
	public static final String NEWPROJECT_JRELIBRARY_INDEX= "org.eclipse.jdt.ui.wizards.jre.index"; 
	/**
	 * A named preference that controls if a new type hierarchy gets opened in a 
	 * new type hierarchy perspective or inside the type hierarchy view part.
	 * <p>
	 * Value is of type <code>String</code>: possible values are <code>
	 * OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE</code> or <code>
	 * OPEN_TYPE_HIERARCHY_IN_VIEW_PART</code>.
	 * </p>
	 * 
	 * @see #OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE
	 * @see #OPEN_TYPE_HIERARCHY_IN_VIEW_PART
	 */
	public static final String OPEN_TYPE_HIERARCHY= "org.eclipse.jdt.ui.openTypeHierarchy"; 
	/**
	 * A string value used by the named preference <code>OPEN_TYPE_HIERARCHY</code>.
	 * 
	 * @see #OPEN_TYPE_HIERARCHY
	 */
	public static final String OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE= "perspective"; 
	/**
	 * A string value used by the named preference <code>OPEN_TYPE_HIERARCHY</code>.
	 * 
	 * @see #OPEN_TYPE_HIERARCHY
	 */
	public static final String OPEN_TYPE_HIERARCHY_IN_VIEW_PART= "viewPart"; 
	
	/**
	 * A named preference that controls the behavior when double clicking on a container in the packages view.