2 * Copyright 2007 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.system.spring;
18 import java.util.List;
20 import org.springframework.beans.factory.FactoryBean;
21 import org.wamblee.system.core.RequiredInterface;
22 import org.wamblee.system.core.SystemAssemblyException;
25 * Bean which adds a service required by the spring component to
26 * the application context so that other spring beans can use it.
28 * @author Erik Brakkee
30 class RequiredServiceBean implements FactoryBean {
32 private RequiredInterface _required;
35 * Constructs the bean.
36 * @param aId Id of the bean in the service registry.
38 public RequiredServiceBean(String aId) {
39 List<RequiredInterface> required = SpringComponent.THIS.get().getRequiredInterfaces();
40 for ( RequiredInterface intf: required) {
41 if ( intf.getName().equals(aId)) {
46 throw new SystemAssemblyException("Cannot resolve required component '" + aId + "'");
50 public Object getObject() throws Exception {
51 return SpringComponent.SCOPE.get().getInterfaceImplementation(
52 _required.getProvider(), Object.class);
56 public Class getObjectType() {
61 public boolean isSingleton() {