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/internal/views/markers/MarkerEntry.java
* an {@link ExtendedMarkersView}.
 * 
 * @since 3.4
 * 
 */
class MarkerEntry extends MarkerSupportItem implements IAdaptable {
	
	private static final Object LOCATION_STRING = "LOCATION_STRING"; 
	Map attributeCache = new HashMap(0);
	private MarkerCategory category;
	Map collationKeys = new HashMap(0);
	private String folder;
	IMarker marker;
	/**
	 * Create a new instance of the receiver.
	 * 
	 * @param marker
	 */
	public MarkerEntry(IMarker marker) {
		this.marker = marker;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	 */
	public Object getAdapter(Class adapter) {
		if (adapter.equals(IMarker.class))
			return marker;
		return null;