01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
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: */
20: package org.apache.mina.common;
21:
22: import java.io.Serializable;
23: import java.util.Map;
24:
25: /**
26: * A key that makes its parent {@link Map} or session attribute to search
27: * fast while being debug-friendly by providing the string representation.
28: *
29: * @author The Apache MINA Project (dev@mina.apache.org)
30: * @version $Rev: 594216 $, $Date: 2007-11-12 10:16:45 -0700 (Mon, 12 Nov 2007) $
31: */
32: public final class AttributeKey implements Serializable {
33: private static final long serialVersionUID = -583377473376683096L;
34:
35: private final String name;
36:
37: /**
38: * Creates a new instance.
39: */
40: public AttributeKey(Class<?> source, String name) {
41: this .name = source.getName() + '.' + String.valueOf(name) + '@'
42: + Integer.toHexString(System.identityHashCode(this ));
43: }
44:
45: @Override
46: public String toString() {
47: return name;
48: }
49: }
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