01: /**
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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: */package org.superbiz.injection;
17:
18: import javax.ejb.EJB;
19: import javax.ejb.Stateless;
20:
21: /**
22: * This is an EJB 3 style pojo stateless session bean
23: * Every stateless session bean implementation must be annotated
24: * using the annotation @Stateless
25: * This EJB has 2 business interfaces: DataReaderRemote, a remote business
26: * interface, and DataReaderLocal, a local business interface
27: *
28: * The instance variables 'dataStoreRemote' is annotated with the @EJB annotation:
29: * this means that the application server, at runtime, will inject in this instance
30: * variable a reference to the EJB DataStoreRemote
31: *
32: * The instance variables 'dataStoreLocal' is annotated with the @EJB annotation:
33: * this means that the application server, at runtime, will inject in this instance
34: * variable a reference to the EJB DataStoreLocal
35: */
36: //START SNIPPET: code
37: @Stateless
38: public class DataReaderImpl implements DataReaderLocal,
39: DataReaderRemote {
40:
41: @EJB
42: private DataStoreRemote dataStoreRemote;
43: @EJB
44: private DataStoreLocal dataStoreLocal;
45:
46: public String readDataFromLocalStore() {
47: return "LOCAL:" + dataStoreLocal.getData();
48: }
49:
50: public String readDataFromRemoteStore() {
51: return "REMOTE:" + dataStoreRemote.getData();
52: }
53: }
54: //END SNIPPET: code
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