2 * Copyright 2005-2010 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 org.springframework.beans.factory.FactoryBean;
20 import org.wamblee.system.core.RequiredInterface;
21 import org.wamblee.system.core.SystemAssemblyException;
23 import java.util.List;
26 * Bean which adds a service required by the spring component to the application
27 * context so that other spring beans can use it.
29 * @author Erik Brakkee
31 class RequiredServiceBean implements FactoryBean {
32 private RequiredInterface required;
35 * Constructs the bean.
38 * Id of the bean in the service registry.
40 public RequiredServiceBean(String aId) {
41 List<RequiredInterface> requiredInterfaces = SpringComponent.THIS.get()
42 .getRequiredInterfaces();
44 for (RequiredInterface intf : requiredInterfaces) {
45 if (intf.getName().equals(aId)) {
52 throw new SystemAssemblyException(
53 "Cannot resolve required component '" + aId + "'");
57 public Object getObject() throws Exception {
58 return SpringComponent.SCOPE.get().getInterfaceImplementation(
59 required.getProvider(), Object.class);
63 public Class getObjectType() {
68 public boolean isSingleton() {