KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > geronimo > connector > outbound > ConnectionHandleInterceptor


1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. 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  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 package org.apache.geronimo.connector.outbound;
19
20 import javax.resource.ResourceException JavaDoc;
21
22 /**
23  * ConnectionHandleInterceptor.java
24  *
25  *
26  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
27  */
28 public class ConnectionHandleInterceptor implements ConnectionInterceptor {
29
30     private final ConnectionInterceptor next;
31
32     public ConnectionHandleInterceptor(ConnectionInterceptor next) {
33         this.next = next;
34     }
35
36     /**
37      * in: connectionInfo not null, managedConnectionInfo not null. ManagedConnection may or may not be null. ConnectionHandle may or may not be null
38      * out: managedConnection not null. connection handle not null. managedConnectionInfo has connection handle registered. Connection handle is associated with ManagedConnection.
39      * @param connectionInfo
40      * @throws ResourceException
41      */
42     public void getConnection(ConnectionInfo connectionInfo) throws ResourceException JavaDoc {
43         next.getConnection(connectionInfo);
44         ManagedConnectionInfo mci = connectionInfo.getManagedConnectionInfo();
45         if (connectionInfo.getConnectionHandle() == null) {
46             connectionInfo.setConnectionHandle(
47                     mci.getManagedConnection().getConnection(
48                             mci.getSubject(),
49                             mci.getConnectionRequestInfo()));
50             mci.addConnectionHandle(connectionInfo);
51
52         } else if (!mci.hasConnectionInfo(connectionInfo)) {
53             mci.getManagedConnection().associateConnection(
54                     connectionInfo.getConnectionHandle());
55             mci.addConnectionHandle(connectionInfo);
56         }
57         connectionInfo.setTrace();
58     }
59
60     /**
61      * in: connectionInfo not null, managedConnectionInfo not null, managedConnection not null. Handle can be null if mc is being destroyed from pool.
62      * out: managedCOnnectionInfo null, handle not in mci.handles.
63      * @param connectionInfo
64      * @param connectionReturnAction
65      */
66     public void returnConnection(ConnectionInfo connectionInfo, ConnectionReturnAction connectionReturnAction) {
67         if (connectionInfo.getConnectionHandle() != null) {
68             connectionInfo.getManagedConnectionInfo().removeConnectionHandle(
69                     connectionInfo);
70         }
71         next.returnConnection(connectionInfo, connectionReturnAction);
72     }
73
74     public void destroy() {
75         next.destroy();
76     }
77 }
78
Popular Tags