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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.pde.core;
/**
* @see IModelChangedEvent
*
* @since 2.0
*/
public class ModelChangedEvent implements IModelChangedEvent {
private int type;
private IModelChangeProvider provider;
private Object[] changedObjects;
private Object oldValue, newValue;
private String changedProperty;
/**
* The constructor of the event.
*
* @param provider
* the change provider
* @param type
* the event type
* @param objects
* the changed objects
* @param changedProperty
* or <samp>null </samp> if not applicable
*/
public ModelChangedEvent(IModelChangeProvider provider, int type,
Object[] objects, String changedProperty) {
this.type = type;
this.provider = provider;
this.changedObjects = objects;
this.changedProperty = changedProperty;
}
/**
* A costructor that should be used for changes of object properties.
*
* @param provider
* the event provider
* @param object
* affected object
* @param changedProperty
* changed property of the affected object
* @param oldValue
* the value before the change
* @param newValue
* the value after the change
*/
public ModelChangedEvent(IModelChangeProvider provider, Object object,
String changedProperty, Object oldValue, Object newValue) {
this.type = CHANGE;
this.provider = provider;
this.changedObjects = new Object[]{object};
this.changedProperty = changedProperty;
this.oldValue = oldValue;
this.newValue = newValue;
}
/**
* @see IModelChangedEvent#getChangeProvider
*/
public IModelChangeProvider getChangeProvider() {
return provider;
}
/**
* @see IModelChangedEvent#getChangedObjects
*/
public Object[] getChangedObjects() {
return (changedObjects == null) ? new Object[0] : changedObjects;
}
/**
* @see IModelChangedEvent#getChangedProperty
*/
public String getChangedProperty() {
return changedProperty;
}
/**
* Returns the old property value.
*
* @return the value before the change
*/
public Object getOldValue() {
return oldValue;
}
/**
* Returns the new property value.
*
* @return the value after the change
*/
public Object getNewValue() {
return newValue;
}
/**
* Returns the event change type
*
* @return the event change type
*
* @see IModelChangedEvent#getChangeType
*/
public int getChangeType() {
return type;
}
}
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