OfyHelper.java

/*
 * Copyright 2015 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

//[START all]

package com.example.appengine;

import com.googlecode.objectify.ObjectifyService;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

/**
 * OfyHelper, a ServletContextListener, is setup in web.xml to run before a JSP is run. This is
 * required to let JSP's access Ofy.
 */
public class OfyHelper implements ServletContextListener {

  /**
   * A ServletContextListener initializer.
   * @param event .
   */
  public void contextInitialized(ServletContextEvent event) {
    // This will be invoked as part of a warmup request, or the first user request if no warmup
    // request.
    ObjectifyService.register(Guestbook.class);
    ObjectifyService.register(Greeting.class);
  }

  public void contextDestroyed(ServletContextEvent event) {
    // App Engine does not currently invoke this method.
  }
}
//[END all]