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Java > Open Source Codes > oracle > toplink > essentials > internal > sequencing > ServerSessionConnectionHandler


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the "License"). You may not use this file except
5  * in compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * glassfish/bootstrap/legal/CDDLv1.0.txt or
9  * https://glassfish.dev.java.net/public/CDDLv1.0.html.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * HEADER in each file and include the License file at
15  * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
16  * add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your
18  * own identifying information: Portions Copyright [yyyy]
19  * [name of copyright owner]
20  */
21 // Copyright (c) 1998, 2005, Oracle. All rights reserved.
22 package oracle.toplink.essentials.internal.sequencing;
23
24 import oracle.toplink.essentials.internal.databaseaccess.Accessor;
25 import oracle.toplink.essentials.threetier.ConnectionPool;
26
27 class ServerSessionConnectionHandler implements SequencingConnectionHandler {
28     ServerSessionConnectionHandler(ConnectionPool pool) {
29         this.pool = pool;
30     }
31
32     ConnectionPool pool;
33
34     public void onConnect() {
35         if (!isConnected()) {
36             pool.startUp();
37         }
38     }
39
40     public boolean isConnected() {
41         return pool.isConnected();
42     }
43
44     public Accessor acquireAccessor() {
45         return pool.acquireConnection();
46     }
47
48     public void releaseAccessor(Accessor accessor) {
49         pool.releaseConnection(accessor);
50     }
51
52     public void onDisconnect() {
53         if (isConnected()) {
54             pool.shutDown();
55         }
56     }
57
58     protected void finalize() throws Throwable JavaDoc {
59         onDisconnect();
60     }
61 }
62
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