CommandUtil.java

/*
 * CommandUtil.java
 *
 * Copyright (C) 2009-12 by RStudio, Inc.
 *
 * Unless you have received this program directly from RStudio pursuant
 * to the terms of a commercial license agreement with RStudio, then
 * this program is licensed to you under the terms of version 3 of the
 * GNU Affero General Public License. This program is distributed WITHOUT
 * ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
 * AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
 *
 */
package org.rstudio.core.client;

import com.google.gwt.user.client.Command;

public class CommandUtil
{
   public static final Command NULL = new Command() {
      public void execute()
      {
      }
   };

   public static Command join(final Command a, final Command b)
   {
      return new Command()
      {
         public void execute()
         {
            if (a != null)
               a.execute();
            if (b != null)
               b.execute();
         }
      };
   }
}