001    // Copyright 2010 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    // http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.internal.util;
016    
017    import org.apache.tapestry5.ComponentEventCallback;
018    
019    /**
020     * Implementation of {@link ComponentEventCallback} that simply captures the result value.
021     * 
022     * @since 5.2.0
023     */
024    public class CaptureResultCallback<T> implements ComponentEventCallback<T>
025    {
026        private T result;
027    
028        public boolean handleResult(T result)
029        {
030            this.result = result;
031    
032            return true;
033        }
034    
035        public T getResult()
036        {
037            return result;
038        }
039    
040        public static <T> CaptureResultCallback<T> create()
041        {
042            return new CaptureResultCallback<T>();
043        }
044    }