1 files changed, 0 insertions, 83 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/Synchronizer.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/Synchronizer.java
deleted file mode 100644
index 230fb86eb3..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/synchronizers/Synchronizer.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2008, 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;
-
-/**
- * This interface defines the protocol for starting, stopping, and executing a
- * long-running, repeatable, and possibly recursive "synchronization" process.
- * The intent is for the synchronizer to synchronize a "secondary" model with
- * a "primary" model. Any change to the "primary" model will trigger the
- * synchronization. The synchronizer implementation will determine whether the
- * "secondary" model remains in sync synchronously or asynchronously.
- * <p>
- * The assumption is that the {@link #start()} and {@link #stop()} methods will be called from
- * a single master thread that would control the synchronizer's lifecycle and
- * the {@link #synchronize()} method will be called multiple times, possibly from
- * multiple threads.
- */
-public interface Synchronizer {
-
-	/**
-	 * Enable the synchronizer to allow future synchronizations as requested
-	 * by calls to {@link #synchronize()}.
-	 */
-	void start();
-
-	/**
-	 * Synchronize the dependent model with the primary model. Do nothing if
-	 * {@link #start()} has not previously been called. Do nothing if {@link #stop}
-	 * has been called (without any intermediate call to {@link #start()}.
-	 */
-	void synchronize();
-
-	/**
-	 * Stop the synchronizer immediately or, if a synchronization is currently
-	 * in progress, when it completes. Return when the synchronizer is stopped.
-	 * No further synchonizations will performed until {@link #start()} is called.
-	 */
-	void stop();
-
-
-	/**
-	 * Singleton implementation of the {@link Synchronizer} interface that will do
-	 * nothing.
-	 */
-	final class Null implements Synchronizer, Serializable {
-		public static final Synchronizer INSTANCE = new Null();
-		public static Synchronizer instance() {
-			return INSTANCE;
-		}
-		// ensure single instance
-		private Null() {
-			super();
-		}
-		public void start() {
-			// do nothing
-		}
-		public void synchronize() {
-			// do nothing
-		}
-		public void stop() {
-			// do nothing
-		}
-		@Override
-		public String toString() {
-			return "Synchronizer.Null"; //$NON-NLS-1$
-		}
-		private static final long serialVersionUID = 1L;
-		private Object readResolve() {
-			// replace this object with the singleton
-			return INSTANCE;
-		}
-	}
-
-}