1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.custom.conversation;
20
21 import java.util.Comparator;
22
23 import javax.faces.el.ValueBinding;
24
25 /**
26 * Compre the expression string of two {@link ValueBinding}s
27 *
28 * @author imario@apache.org
29 */
30 public class ValueBindingKey implements Comparator
31 {
32 public int compare(Object o1, Object o2)
33 {
34 ValueBinding vb1 = (ValueBinding) o1;
35 ValueBinding vb2 = (ValueBinding) o2;
36
37 return vb1.getExpressionString().compareTo(vb2.getExpressionString());
38 }
39 }