org.jboss.weld.serialization.BeanHolder Maven / Gradle / Ivy
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* Copyright 2010, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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.jboss.weld.serialization;
import javax.enterprise.inject.spi.Bean;
import org.jboss.weld.Container;
import org.jboss.weld.serialization.spi.BeanIdentifier;
import org.jboss.weld.serialization.spi.ContextualStore;
/**
* Serializable holder that keeps reference to a bean and is capable of reloading the reference on deserialization.
*
* @author Jozef Hartinger
*
* @param bean type
*/
public class BeanHolder extends AbstractSerializableHolder> {
private static final long serialVersionUID = 6039992808930111222L;
public static BeanHolder of(String contextId, Bean bean) {
return new BeanHolder(contextId, bean);
}
private final String contextId;
private final BeanIdentifier beanId;
public BeanHolder(String contextId, Bean bean) {
super(bean);
this.contextId = contextId;
if (bean == null) {
beanId = null;
} else {
beanId = Container.instance(contextId).services().get(ContextualStore.class).putIfAbsent(bean);
}
}
@Override
protected Bean initialize() {
if (beanId == null) {
return null;
}
return Container.instance(contextId).services().get(ContextualStore.class)., T> getContextual(beanId);
}
}