01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.transport;
22
23 import org.apache.qpid.transport.codec.Decoder;
24 import org.apache.qpid.transport.codec.Encoder;
25
26
27 /**
28 * Field
29 *
30 */
31
32 public abstract class Field<C,T>
33 {
34
35 private final Class<C> container;
36 private final Class<T> type;
37 private final String name;
38 private final int index;
39
40 Field(Class<C> container, Class<T> type, String name, int index)
41 {
42 this.container = container;
43 this.type = type;
44 this.name = name;
45 this.index = index;
46 }
47
48 public final Class<C> getContainer()
49 {
50 return container;
51 }
52
53 public final Class<T> getType()
54 {
55 return type;
56 }
57
58 public final String getName()
59 {
60 return name;
61 }
62
63 public final int getIndex()
64 {
65 return index;
66 }
67
68 protected final C check(Object struct)
69 {
70 return container.cast(struct);
71 }
72
73 public abstract boolean has(Object struct);
74
75 public abstract void has(Object struct, boolean value);
76
77 public abstract T get(Object struct);
78
79 public abstract void read(Decoder dec, Object struct);
80
81 public abstract void write(Encoder enc, Object struct);
82
83 }
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