1 files changed, 0 insertions, 125 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractPropertyValueModel.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractPropertyValueModel.java
deleted file mode 100644
index 27e31c28b1..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractPropertyValueModel.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2009, 2012 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.internal.model.value;
-
-import org.eclipse.jpt.common.utility.internal.model.AbstractModel;
-import org.eclipse.jpt.common.utility.internal.model.ChangeSupport;
-import org.eclipse.jpt.common.utility.internal.model.SingleAspectChangeSupport;
-import org.eclipse.jpt.common.utility.model.listener.ChangeListener;
-import org.eclipse.jpt.common.utility.model.listener.PropertyChangeListener;
-import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
-
-/**
- * This abstract class provides the infrastructure for "lazily" adding/removing
- * listeners to/from an underlying model as <em>property</em> change
- * listeners are added to/removed from itself.
- * Subclasses will need to engage and disengage the underlying model
- * appropriately and fire the appropriate <em>property</em>
- * change events.
- * <p>
- * Subclasses must implement the appropriate {@link PropertyValueModel}.
- * <p>
- * Subclasses must implement the following methods:<ul>
- * <li>{@link #engageModel()}<p>
- *     implement this method to add the appropriate listener(s) to the
- *     underlying model
- * <li>{@link #disengageModel()}<p>
- *     implement this method to remove the appropriate listener(s) from the
- *     underlying model
- * </ul>
- */
-public abstract class AbstractPropertyValueModel
-	extends AbstractModel
-{
-	// ********** constructor/initialization **********
-
-	protected AbstractPropertyValueModel() {
-		super();
-	}
-
-	@Override
-	protected ChangeSupport buildChangeSupport() {
-		return new SingleAspectChangeSupport(this, PropertyChangeListener.class, PropertyValueModel.VALUE);
-	}
-
-
-	// ********** listeners **********
-
-	/**
-	 * Extend to start listening to the underlying model if necessary.
-	 */
-	@Override
-	public synchronized void addChangeListener(ChangeListener listener) {
-		if (this.hasNoListeners()) {
-			this.engageModel();
-		}
-		super.addChangeListener(listener);
-	}
-
-	/**
-	 * Extend to stop listening to the underlying model if necessary.
-	 */
-	@Override
-	public synchronized void removeChangeListener(ChangeListener listener) {
-		super.removeChangeListener(listener);
-		if (this.hasNoListeners()) {
-			this.disengageModel();
-		}
-	}
-
-	/**
-	 * Extend to start listening to the underlying model if necessary.
-	 */
-	@Override
-	public synchronized void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
-		if (propertyName.equals(PropertyValueModel.VALUE) && this.hasNoListeners()) {
-			this.engageModel();
-		}
-		super.addPropertyChangeListener(propertyName, listener);
-	}
-
-	/**
-	 * Extend to stop listening to the underlying model if necessary.
-	 */
-	@Override
-	public synchronized void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
-		super.removePropertyChangeListener(propertyName, listener);
-		if (propertyName.equals(PropertyValueModel.VALUE) && this.hasNoListeners()) {
-			this.disengageModel();
-		}
-	}
-
-	/**
-	 * Return whether the model has no property value listeners.
-	 */
-	protected boolean hasNoListeners() {
-		return ! this.hasListeners();
-	}
-
-	/**
-	 * Return whether the model has any property value listeners.
-	 */
-	protected boolean hasListeners() {
-		return this.hasAnyPropertyChangeListeners(PropertyValueModel.VALUE);
-	}
-
-
-	// ********** subclass implementation **********
-
-	/**
-	 * Engage the underlying model.
-	 */
-	protected abstract void engageModel();
-
-	/**
-	 * Stop listening to the underlying model.
-	 */
-	protected abstract void disengageModel();
-}