/*******************************************************************************
* Copyright (c) 2000, 2009 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.che.ide.ext.java.jdt.internal.core.dom.rewrite;
/**
*
*/
public abstract class RewriteEvent {
/** Change kind to describe that the event is an insert event. Does not apply for list events. */
public static final int INSERTED = 1;
/** Change kind to describe that the event is an remove event. Does not apply for list events. */
public static final int REMOVED = 2;
/** Change kind to describe that the event is an replace event. Does not apply for list events. */
public static final int REPLACED = 4;
/** Change kind to signal that children changed. Does only apply for list events. */
public static final int CHILDREN_CHANGED = 8;
/** Change kind to signal that the property did not change */
public static final int UNCHANGED = 0;
/** @return Returns the event's change kind. */
public abstract int getChangeKind();
/** @return Returns true if the given event is a list event. */
public abstract boolean isListRewrite();
/**
* @return Returns the original value. For lists this is a <code>List<code> of ASTNode's, for non-list
* events this can be an ASTNode (for node properties), Integer (for an integer property),
* Boolean (for boolean node properties) or properties like Operator.
* <code>null</code> is returned if the event is a insert event.
*/
public abstract Object getOriginalValue();
/**
* @return Returns the new value. For lists this is a <code>List<code> of ASTNode's, for non-list
* events this can be an ASTNode (for node properties), Integer (for an integer property),
* Boolean (for boolean node properties) or properties like Operator.
* <code>null</code> is returned if the event is a remove event.
*/
public abstract Object getNewValue();
/** @return Return the events describing the changes in a list. returns <code>null</code> if the event is not a list event. */
public abstract RewriteEvent[] getChildren();
}