abstractmodelobject.java

来自「利用SWT和JFACE开发的JAVAGUI程序——电话本」· Java 代码 · 共 34 行

package phonebook.model;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

public abstract class AbstractModelObject {
	private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
			this);

	public void addPropertyChangeListener(PropertyChangeListener listener) {
		propertyChangeSupport.addPropertyChangeListener(listener);
	}

	public void addPropertyChangeListener(String propertyName,
			PropertyChangeListener listener) {
		propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
	}

	public void removePropertyChangeListener(PropertyChangeListener listener) {
		propertyChangeSupport.removePropertyChangeListener(listener);
	}

	public void removePropertyChangeListener(String propertyName,
			PropertyChangeListener listener) {
		propertyChangeSupport.removePropertyChangeListener(propertyName,
				listener);
	}

	protected void firePropertyChange(String propertyName, Object oldValue,
			Object newValue) {
		propertyChangeSupport.firePropertyChange(propertyName, oldValue,
				newValue);
	}
}