org.eclipse.osbp.runtime.tests/src/org/eclipse/osbp/runtime/tests/BarHashById.java

/**
 *                                                                            
 *  Copyright (c) 2011, 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 v1.0       
 *  which accompanies this distribution, and is available at                  
 *  http://www.eclipse.org/legal/epl-v10.html                                 
 *                                                                            
 *  Contributors:                                                      
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 */
 package org.eclipse.osbp.runtime.tests;

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

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

	private final String id;

	private boolean disposed;

	private String name;

	public BarHashById(String id) {
		super();
		this.id = id;
	}

	/**
	 * 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);
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		BarHashById other = (BarHashById) obj;
		if (disposed != other.disposed)
			return false;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		if (name == null) {
			if (other.name != null)
				return false;
		} else if (!name.equals(other.name))
			return false;
		return true;
	}

}