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Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/CallbackSynchronizer.java')
-rw-r--r--common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/CallbackSynchronizer.java92
1 files changed, 0 insertions, 92 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/CallbackSynchronizer.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/CallbackSynchronizer.java
deleted file mode 100644
index 029227a8c7..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/CallbackSynchronizer.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2009, 2010 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.common.utility.synchronizers;
-
-import java.io.Serializable;
-import java.util.EventListener;
-
-/**
- * Extend {@link Synchronizer} to notify listeners
- * when a synchronization "cycle" is complete; i.e. the synchronization has,
- * for the moment, quiesced.
- */
-public interface CallbackSynchronizer
- extends Synchronizer
-{
- /**
- * Add the specified listener to be notified whenever the synchronizer has
- * quiesced.
- * @see #removeListener(Listener)
- */
- void addListener(Listener listener);
-
- /**
- * Remove the specified listener.
- * @see #addListener(Listener)
- */
- void removeListener(Listener listener);
-
-
- // ********** listener **********
-
- /**
- * Interface implemented by listeners to be notified whenever the
- * synchronizer has quiesced.
- */
- public interface Listener
- extends EventListener
- {
- /**
- * The specified synchronizer has quiesced.
- */
- void synchronizationQuiesced(CallbackSynchronizer synchronizer);
- }
-
-
- /**
- * Singleton implementation of the {@link CallbackSynchronizer} interface that will do
- * nothing.
- */
- final class Null implements CallbackSynchronizer, Serializable {
- public static final CallbackSynchronizer INSTANCE = new Null();
- public static CallbackSynchronizer instance() {
- return INSTANCE;
- }
- // ensure single instance
- private Null() {
- super();
- }
- public void start() {
- // do nothing
- }
- public void synchronize() {
- // do nothing
- }
- public void stop() {
- // do nothing
- }
- public void addListener(Listener listener) {
- // do nothing
- }
- public void removeListener(Listener listener) {
- // do nothing
- }
- @Override
- public String toString() {
- return "CallbackSynchronizer.Null"; //$NON-NLS-1$
- }
- private static final long serialVersionUID = 1L;
- private Object readResolve() {
- // replace this object with the singleton
- return INSTANCE;
- }
- }
-
-}

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