| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.search.indexing; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jdt.internal.core.index.Index; |
| |
| class RemoveFromIndex extends IndexRequest { |
| String resourceName; |
| |
| public RemoveFromIndex(String resourceName, IPath containerPath, IndexManager manager) { |
| super(containerPath, manager); |
| this.resourceName = resourceName; |
| } |
| public boolean execute(IProgressMonitor progressMonitor) { |
| |
| if (this.isCancelled || progressMonitor != null && progressMonitor.isCanceled()) return true; |
| |
| /* ensure no concurrent write access to index */ |
| Index index = this.manager.getIndex(this.containerPath, true, /*reuse index file*/ false /*create if none*/); |
| if (index == null) return true; |
| ReadWriteMonitor monitor = index.monitor; |
| if (monitor == null) return true; // index got deleted since acquired |
| |
| try { |
| monitor.enterWrite(); // ask permission to write |
| index.remove(resourceName); |
| } finally { |
| monitor.exitWrite(); // free write lock |
| } |
| return true; |
| } |
| public String toString() { |
| return "removing " + this.resourceName + " from index " + this.containerPath; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |