| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.corext.refactoring.changes; |
| |
| import org.eclipse.text.edits.UndoEdit; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.SubProgressMonitor; |
| |
| import org.eclipse.core.resources.IFile; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| import org.eclipse.ltk.core.refactoring.Change; |
| import org.eclipse.ltk.core.refactoring.ContentStamp; |
| import org.eclipse.ltk.core.refactoring.UndoTextFileChange; |
| |
| /* package */ class UndoCompilationUnitChange extends UndoTextFileChange { |
| |
| private ICompilationUnit fCUnit; |
| |
| public UndoCompilationUnitChange(String name, ICompilationUnit unit, UndoEdit undo, ContentStamp stampToRestore, int saveMode) throws CoreException { |
| super(name, getFile(unit), undo, stampToRestore, saveMode); |
| fCUnit= unit; |
| } |
| |
| private static IFile getFile(ICompilationUnit cunit) throws CoreException { |
| IFile file= (IFile)cunit.getResource(); |
| if (file == null) |
| throw new CoreException(new Status( |
| IStatus.ERROR, |
| JavaPlugin.getPluginId(), |
| IStatus.ERROR, |
| Messages.format( |
| RefactoringCoreMessages.UndoCompilationUnitChange_no_resource, //$NON-NLS-1$ |
| cunit.getElementName()), |
| null) |
| ); |
| return file; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object getModifiedElement() { |
| return fCUnit; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected Change createUndoChange(UndoEdit edit, ContentStamp stampToRestore) throws CoreException { |
| return new UndoCompilationUnitChange(getName(), fCUnit, edit, stampToRestore, getSaveMode()); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Change perform(IProgressMonitor pm) throws CoreException { |
| pm.beginTask("", 2); //$NON-NLS-1$ |
| fCUnit.becomeWorkingCopy(null, new SubProgressMonitor(pm,1)); |
| try { |
| return super.perform(new SubProgressMonitor(pm,1)); |
| } finally { |
| fCUnit.discardWorkingCopy(); |
| } |
| } |
| } |