1 files changed, 0 insertions, 132 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/SynchronousJpaProjectUpdater.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/SynchronousJpaProjectUpdater.java
deleted file mode 100644
index 37a621f36b..0000000000
--- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/SynchronousJpaProjectUpdater.java
+++ /dev/null
@@ -1,132 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2008 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;
-
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.NullProgressMonitor;
-import org.eclipse.jpt.core.JpaProject;
-import org.eclipse.jpt.utility.internal.StringTools;
-import org.eclipse.jpt.utility.internal.SynchronizedBoolean;
-
-/**
- * This updater will "update" the JPA project immediately and not return until
- * the "update" and all resulting "updates" are complete. This implementation
- * should be used sparingly and for as short a time as possible, as it increases
- * the probability of deadlocks. A deadlock can occur when a JPA project is
- * updated from multiple threads and various resources are locked in varying
- * orders.
- */
-public class SynchronousJpaProjectUpdater implements JpaProject.Updater {
-	protected final JpaProject jpaProject;
-	protected final SynchronizedFlags flags;
-
-	protected static final IProgressMonitor NULL_PROGRESS_MONITOR = new NullProgressMonitor();
-
-	public SynchronousJpaProjectUpdater(JpaProject jpaProject) {
-		super();
-		this.jpaProject = jpaProject;
-		this.flags = new SynchronizedFlags();
-	}
-
-	/**
-	 * Initialize the flags and execute an "update".
-	 */
-	public void start() {
-		this.flags.start();
-		this.update();
-	}
-
-	// recursion: we come back here when IJpaProject#update() is called during the "update"
-	public void update() {
-		if (this.flags.updateCanStart()) {
-			do {
-				this.jpaProject.update(NULL_PROGRESS_MONITOR);
-			} while (this.flags.updateMustExecuteAgain());
-		}
-	}
-
-	public void dispose() {
-		this.flags.dispose();
-	}
-
-	@Override
-	public String toString() {
-		return StringTools.buildToStringFor(this, this.jpaProject);
-	}
-
-
-	/**
-	 * synchronize access to the pair of 'updating' and 'again' flags
-	 */
-	protected static class SynchronizedFlags {
-		protected SynchronizedBoolean updating = new SynchronizedBoolean(false, this);
-		protected boolean again = false;
-		protected boolean stop = true;
-
-		protected synchronized void start() {
-			if ( ! this.stop) {
-				throw new IllegalStateException("The Updater was not stopped.");
-			}
-			this.stop = false;
-		}
-
-		/**
-		 * A client has requested an "update";
-		 * return whether the updater can start an "update".
-		 * Side-effects:
-		 *   - If we are currently updating, set the 'again' flag.
-		 *   - If we are not currently updating, set the 'updating' flag and clear the 'again' flag.
-		 */
-		protected synchronized boolean updateCanStart() {
-			if (this.stop) {
-				return false;
-			}
-			if (this.updating.isTrue()) {
-				this.again = true;
-				return false;
-			}
-			this.updating.setTrue();
-			this.again = false;
-			return true;
-		}
-
-		/**
-		 * The "update" has finished;
-		 * return whether the updater must execute another "update".
-		 * Side-effects:
-		 *   - If we are supposed to stop, clear the both the 'updating' and 'again' flags.
-		 *   - If we have to "update" again, clear the 'again' flag and leave the 'updating' flag set.
-		 *   - If we are finished, clear the 'updating' flag.
-		 */
-		protected synchronized boolean updateMustExecuteAgain() {
-			if (this.stop) {
-				return false;
-			}
-			if (this.again) {
-				this.again = false;
-				return true;
-			}
-			this.updating.setFalse();
-			return false;
-		}
-
-		protected synchronized void dispose() {
-			this.stop = true;
-			this.again = false;
-			try {
-				this.updating.waitUntilFalse();
-			} catch (InterruptedException ex) {
-				// the "update" thread was interrupted while waiting - ignore
-			}
-		}
-
-	}
-
-}