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Java > Open Source Codes > org > apache > geronimo > connector > outbound > connectiontracking > DefaultComponentInterceptor


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.connectiontracking;
19
20 import org.apache.geronimo.connector.outbound.connectiontracking.ConnectorInstanceContext;
21 import org.apache.geronimo.connector.outbound.connectiontracking.TrackedConnectionAssociator;
22
23 /**
24  * Sample functionality for an interceptor that enables connection caching and obtaining
25  * connections outside a UserTransaction.
26  *
27  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
28  */
29 public class DefaultComponentInterceptor implements DefaultInterceptor {
30
31     private final DefaultInterceptor next;
32     private final TrackedConnectionAssociator trackedConnectionAssociator;
33
34     public DefaultComponentInterceptor(DefaultInterceptor next, TrackedConnectionAssociator trackedConnectionAssociator) {
35         this.next = next;
36         this.trackedConnectionAssociator = trackedConnectionAssociator;
37     }
38
39     public Object JavaDoc invoke(ConnectorInstanceContext newConnectorInstanceContext) throws Throwable JavaDoc {
40         ConnectorInstanceContext oldConnectorInstanceContext = trackedConnectionAssociator.enter(newConnectorInstanceContext);
41         try {
42             return next.invoke(newConnectorInstanceContext);
43         } finally {
44             trackedConnectionAssociator.exit(oldConnectorInstanceContext);
45         }
46     }
47 }
48
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