| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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.debug.internal.core; |
| |
| |
| import java.util.Comparator; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.debug.core.DebugPlugin; |
| |
| /** |
| * Proxy to a runtime classpath entry resolver extension. |
| * |
| * @see IConfigurationElementConstants |
| */ |
| public class LaunchConfigurationComparator implements Comparator { |
| |
| private IConfigurationElement fConfigurationElement; |
| |
| private Comparator fDelegate; |
| |
| /** |
| * Constructs a new resolver on the given configuration element |
| * |
| * @param element configuration element |
| */ |
| public LaunchConfigurationComparator(IConfigurationElement element) { |
| fConfigurationElement = element; |
| } |
| |
| /** |
| * Returns the resolver delegate (and creates if required) |
| */ |
| protected Comparator getComparator() { |
| if (fDelegate == null) { |
| try { |
| fDelegate = (Comparator)fConfigurationElement.createExecutableExtension(IConfigurationElementConstants.CLASS); |
| } catch (CoreException e) { |
| DebugPlugin.log(e); |
| } |
| } |
| return fDelegate; |
| } |
| |
| |
| /** |
| * @see Comparator#compare(Object, Object) |
| */ |
| public int compare(Object o1, Object o2) { |
| return getComparator().compare(o1, o2); |
| } |
| |
| /** |
| * @see Object#equals(Object) |
| */ |
| public boolean equals(Object obj) { |
| return getComparator().equals(obj); |
| } |
| |
| } |