| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.search; |
| |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.search.ui.IGroupByKeyComputer; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| public class GroupByKeyComputer implements IGroupByKeyComputer { |
| |
| IJavaElement fLastJavaElement= null;; |
| String fLastHandle= null;; |
| |
| public Object computeGroupByKey(IMarker marker) { |
| if (marker == null) |
| return null; |
| |
| IJavaElement jElement= getJavaElement(marker); |
| if (jElement != null && jElement.exists()) { |
| // no help from JavaModel to rename yet |
| // return getJavaElement(marker); |
| return fLastHandle; |
| } |
| return null; |
| } |
| |
| private String getJavaElementHandleId(IMarker marker) { |
| try { |
| return (String)marker.getAttribute(IJavaSearchUIConstants.ATT_JE_HANDLE_ID); |
| } catch (CoreException ex) { |
| ExceptionHandler.handle(ex, SearchMessages.getString("Search.Error.markerAttributeAccess.title"), SearchMessages.getString("Search.Error.markerAttributeAccess.message")); //$NON-NLS-2$ //$NON-NLS-1$ |
| return null; |
| } |
| } |
| |
| private IJavaElement getJavaElement(IMarker marker) { |
| String handle= getJavaElementHandleId(marker); |
| if (handle == null) { |
| fLastHandle= null; |
| fLastJavaElement= null; |
| return null; |
| } |
| |
| if (!handle.equals(fLastHandle)) { |
| fLastJavaElement= SearchUtil.getJavaElement(marker); |
| if (fLastJavaElement != null) |
| fLastHandle= fLastJavaElement.getHandleIdentifier(); |
| else |
| fLastHandle= null; |
| } |
| return fLastJavaElement; |
| } |
| } |