org.eclipse.osbp.ecview.extension.presentation.vaadin.tests/src/org/eclipse/osbp/ecview/extension/presentation/tests/strategy/Bar.java

/**
 *                                                                            
 *  Copyright (c) 2015 - 2016 - Loetz GmbH&Co.KG, 69115 Heidelberg, Germany 
 *                                                                            
 *  All rights reserved. This program and the accompanying materials           
 *  are made available under the terms of the Eclipse Public License 2.0        
 *  which accompanies this distribution, and is available at                  
 *  https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 *  SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 *  Contributors:                                                      
 * 	   Loetz GmbH&Co.KG - Initial implementation
 * 
 */
 package org.eclipse.osbp.ecview.extension.presentation.tests.strategy;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.Serializable;

@SuppressWarnings("serial")
public class Bar implements Serializable {
	private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
			this);

	private boolean disposed;

	private String name;

	private Foo myfoo;

	/**
	 * Returns true, if the object is disposed. Disposed means, that it is
	 * prepared for garbage collection and may not be used anymore. Accessing
	 * objects that are already disposed will cause runtime exceptions.
	 */
	public boolean isDisposed() {
		return this.disposed;
	}

	/**
	 * @see PropertyChangeSupport#addPropertyChangeListener(PropertyChangeListener)
	 */
	public void addPropertyChangeListener(final PropertyChangeListener listener) {
		propertyChangeSupport.addPropertyChangeListener(listener);
	}

	/**
	 * @see PropertyChangeSupport#addPropertyChangeListener(String,
	 *      PropertyChangeListener)
	 */
	public void addPropertyChangeListener(final String propertyName,
			final PropertyChangeListener listener) {
		propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
	}

	/**
	 * @see PropertyChangeSupport#removePropertyChangeListener(PropertyChangeListener)
	 */
	public void removePropertyChangeListener(
			final PropertyChangeListener listener) {
		propertyChangeSupport.removePropertyChangeListener(listener);
	}

	/**
	 * @see PropertyChangeSupport#removePropertyChangeListener(String,
	 *      PropertyChangeListener)
	 */
	public void removePropertyChangeListener(final String propertyName,
			final PropertyChangeListener listener) {
		propertyChangeSupport.removePropertyChangeListener(propertyName,
				listener);
	}

	/**
	 * @see PropertyChangeSupport#firePropertyChange(String, Object, Object)
	 */
	public void firePropertyChange(final String propertyName,
			final Object oldValue, final Object newValue) {
		propertyChangeSupport.firePropertyChange(propertyName, oldValue,
				newValue);
	}

	/**
	 * Checks whether the object is disposed.
	 * 
	 * @throws RuntimeException
	 *             if the object is disposed.
	 */
	private void checkDisposed() {
		if (isDisposed()) {
			throw new RuntimeException("Object already disposed: " + this);
		}
	}

	/**
	 * Calling dispose will destroy that instance. The internal state will be
	 * set to 'disposed' and methods of that object must not be used anymore.
	 * Each call will result in runtime exceptions.
	 * If this object keeps composition containments, these will be disposed
	 * too. So the whole composition containment tree will be disposed on
	 * calling this method.
	 */
	public void dispose() {
		if (isDisposed()) {
			return;
		}
		disposed = true;
	}

	/**
	 * Returns the name property or <code>null</code> if not present.
	 */
	public String getName() {
		checkDisposed();
		return this.name;
	}

	/**
	 * Sets the <code>name</code> property to this instance.
	 * 
	 * @param name
	 *            - the property
	 * @throws RuntimeException
	 *             if instance is <code>disposed</code>
	 * 
	 */
	public void setName(final String name) {
		firePropertyChange("name", this.name, this.name = name);
	}

	/**
	 * Returns the myfoo property or <code>null</code> if not present.
	 */
	public Foo getMyfoo() {
		checkDisposed();
		return this.myfoo;
	}

/**
   * Sets the <code>myfoo</code> property to this instance.
   * Since the reference has an opposite reference, the opposite <code>foo#
   * mybars</code> of the <code>myfoo</code> will be handled automatically and no 
   * further coding is required to keep them in sync.<p>
   * See {@link foo#setMybars(foo)
   * 
   * @param myfoo - the property
   * @throws RuntimeException if instance is <code>disposed</code>
   * 
   */
	public void setMyfoo(final Foo myfoo) {
		checkDisposed();
		if (this.myfoo != null) {
			this.myfoo.internalRemoveFromMybars(this);
		}
		internalSetMyfoo(myfoo);
		if (this.myfoo != null) {
			this.myfoo.internalAddToMybars(this);
		}

	}

	/**
	 * For internal use only!
	 */
	public void internalSetMyfoo(final Foo myfoo) {
		firePropertyChange("myfoo", this.myfoo, this.myfoo = myfoo);
	}
}