Skip to main content
summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/JobCommand.java')
-rw-r--r--jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/JobCommand.java96
1 files changed, 0 insertions, 96 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/JobCommand.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/JobCommand.java
deleted file mode 100644
index f4b1a0d7d0..0000000000
--- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/JobCommand.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2008, 2009 Oracle. 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:
- * Oracle - initial API and implementation
- ******************************************************************************/
-package org.eclipse.jpt.core.internal.utility;
-
-import java.io.Serializable;
-
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-
-/**
- * Simple interface for implementing the GOF Command design pattern in an
- * Eclipse job.
- * <p>
- * Provisional API: This interface is part of an interim API that is still
- * under development and expected to change significantly before reaching
- * stability. It is available at this early stage to solicit feedback from
- * pioneering adopters on the understanding that any code that uses this API
- * will almost certainly be broken (repeatedly) as the API evolves.
- */
-public interface JobCommand {
-
- /**
- * Execute the command. The semantics of the command
- * is determined by the contract between the client and server.
- * The command should check, as appropriate, whether the specified progress
- * monitor is {@link IProgressMonitor#isCanceled() "canceled"}; if it is,
- * the command should throw an
- * {@link org.eclipse.core.runtime.OperationCanceledException OperationCanceledException}.
- * @see IProgressMonitor#isCanceled()
- */
- IStatus execute(IProgressMonitor monitor);
-
- /**
- * Singleton implementation of the job command interface that will do
- * nothing when executed.
- */
- final class Null implements JobCommand, Serializable {
- public static final JobCommand INSTANCE = new Null();
- public static JobCommand instance() {
- return INSTANCE;
- }
- // ensure single instance
- private Null() {
- super();
- }
- public IStatus execute(IProgressMonitor arg0) {
- return Status.OK_STATUS;
- }
- @Override
- public String toString() {
- return "JobCommand.Null"; //$NON-NLS-1$
- }
- private static final long serialVersionUID = 1L;
- private Object readResolve() {
- // replace this object with the singleton
- return INSTANCE;
- }
- }
-
- /**
- * Singleton implementation of the job command interface that will throw an
- * exception when executed.
- */
- final class Disabled implements JobCommand, Serializable {
- public static final JobCommand INSTANCE = new Disabled();
- public static JobCommand instance() {
- return INSTANCE;
- }
- // ensure single instance
- private Disabled() {
- super();
- }
- // throw an exception
- public IStatus execute(IProgressMonitor arg0) {
- throw new UnsupportedOperationException();
- }
- @Override
- public String toString() {
- return "JobCommand.Disabled"; //$NON-NLS-1$
- }
- private static final long serialVersionUID = 1L;
- private Object readResolve() {
- // replace this object with the singleton
- return INSTANCE;
- }
- }
-
-}

Back to the top