| /******************************************************************************* |
| * Copyright (c) 2005, 2006 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.ltk.internal.core.refactoring.history; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptorProxy; |
| import org.eclipse.ltk.core.refactoring.RefactoringStatus; |
| |
| /** |
| * A query interface to decide whether a refactoring descriptor may be deleted. |
| * <p> |
| * Clients should be aware that the methods defined by this interface can be |
| * called from a non-user interface thread. |
| * </p> |
| * |
| * @since 3.2 |
| */ |
| public interface IRefactoringDescriptorDeleteQuery { |
| |
| /** |
| * Have any refactoring descriptors been deleted? |
| * |
| * @return <code>true</code> if any descriptors have been deleted, |
| * <code>true</code> otherwise |
| */ |
| public boolean hasDeletions(); |
| |
| /** |
| * Returns whether the current delete operation can be executed. |
| * <p> |
| * The refactoring descriptor will considered to be deleted only if this |
| * method returns a status of severity {@link RefactoringStatus#OK}.<br> |
| * If a status of severity {@link RefactoringStatus#FATAL} is returned, the |
| * entire operation which this deletion if part of is considered to be |
| * aborted. |
| * </p> |
| * |
| * @param proxy |
| * the refactoring descriptor proxy to delete |
| * @return a refactoring status describing the outcome of the user prompt |
| */ |
| public RefactoringStatus proceed(RefactoringDescriptorProxy proxy); |
| } |
