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Java > Open Source Codes > org > apache > geronimo > interop > rmi > iiop > FieldComparator


1 /**
2  *
3  * Copyright 2004-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.geronimo.interop.rmi.iiop;
19
20 import java.lang.reflect.*;
21 import java.util.*;
22
23 /**
24  ** Sort fields in the order they must be marshalled for RMI-IIOP.
25  **/
26 public class FieldComparator implements Comparator
27 {
28     public static final FieldComparator SINGLETON = new FieldComparator();
29
30     public int compare(Object JavaDoc x, Object JavaDoc y)
31     {
32         Field a = (Field)x;
33         Field b = (Field)y;
34         if (a.getType().isPrimitive())
35         {
36             if (b.getType().isPrimitive())
37             {
38                 return a.getName().compareTo(b.getName());
39             }
40             else
41             {
42                 return -1;
43             }
44         }
45         else
46         {
47             if (b.getType().isPrimitive())
48             {
49                 return 1;
50             }
51             else
52             {
53                 return a.getName().compareTo(b.getName());
54             }
55         }
56     }
57
58     public boolean equals(Object JavaDoc x)
59     {
60         // shouldn't be used
61 return false;
62     }
63 }
64
65
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