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/*******************************************************************************
* Copyright (c) 2004, 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facesconfig.ui.pageflow.command;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.gef.commands.Command;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.Pageflow;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowPackage;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.synchronization.FC2PFTransformer;
/**
* A batched edit command will enable adapters to interven before and after a
* set of operations was done by sending notification to the adapters.
*
* @author hmeng
*/
/*package*/ abstract class AbstractBatchEditCommand extends Command {
Pageflow pageflow;
/**
* @param pageflow
*/
public AbstractBatchEditCommand(Pageflow pageflow) {
this(pageflow, null);
}
/**
* @param pageflow
* @param label
*/
public AbstractBatchEditCommand(Pageflow pageflow, String label) {
super(label);
this.pageflow = pageflow;
}
/**
* @return the pageflow
*/
public Pageflow getPageflow() {
return pageflow;
}
/**
* The subclass should extend methods doXXX only.
*/
final public void execute() {
preExecute();
doExecute();
postExecute();
}
final public void redo() {
doRedo();
}
final public void undo() {
preExecute();
doUndo();
postExecute();
}
/**
*
*/
abstract public void doExecute();
/**
* Do the customized redo
*/
public void doRedo() {
execute();
}
abstract void doUndo();
final void preExecute() {
getPageflow().eNotify(
new ENotificationImpl((InternalEObject) getPageflow(),
FC2PFTransformer.MY_NOTIFICATION_TYPE,
PageflowPackage.PAGEFLOW, null, null));
}
/**
* execute the post-execution handling
*/
final protected void postExecute() {
getPageflow().eNotify(
new ENotificationImpl((InternalEObject) getPageflow(),
FC2PFTransformer.MY_NOTIFICATION_TYPE1,
PageflowPackage.PAGEFLOW, null, null));
notifyPageflow(getPageflow());
}
/**
* @param pageflow_
*/
protected void notifyPageflow(Pageflow pageflow_) {
pageflow_.notifyModelChanged(new ENotificationImpl(
(InternalEObject) pageflow_, Notification.ADD,
PageflowPackage.PAGEFLOW, null, null));
}
}
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