org.apache.cxf.service.invoker.SingletonFactory Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.service.invoker;
import org.apache.cxf.message.Exchange;
/**
* Always returns a single instance of the bean.
*
* This is generally the default.
*/
public class SingletonFactory implements Factory {
Object bean;
Factory factory;
public SingletonFactory(final Object bean) {
this.bean = bean;
}
public SingletonFactory(final Class beanClass) {
this.factory = new PerRequestFactory(beanClass);
}
public SingletonFactory(final Factory f) {
this.factory = f;
}
/** {@inheritDoc}*/
public Object create(Exchange ex) throws Throwable {
if (bean == null && factory != null) {
createBean(ex);
}
return bean;
}
private synchronized void createBean(Exchange e) throws Throwable {
if (bean == null) {
bean = factory.create(e);
}
}
/** {@inheritDoc}*/
public void release(Exchange ex, Object o) {
//nothing to do
}
}