spring-batch StepListenerFactoryBean 源码
spring-batch StepListenerFactoryBean 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/listener/StepListenerFactoryBean.java
/*
* Copyright 2002-2013 the original author or authors.
*
* 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
*
* https://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.springframework.batch.core.listener;
import org.springframework.batch.core.StepListener;
/**
* This {@link AbstractListenerFactoryBean} implementation is used to create a
* {@link StepListener}.
*
* @author Lucas Ward
* @author Dan Garrette
* @since 2.0
* @see AbstractListenerFactoryBean
* @see StepListenerMetaData
*/
public class StepListenerFactoryBean extends AbstractListenerFactoryBean<StepListener> {
@Override
protected ListenerMetaData getMetaDataFromPropertyName(String propertyName) {
return StepListenerMetaData.fromPropertyName(propertyName);
}
@Override
protected ListenerMetaData[] getMetaDataValues() {
return StepListenerMetaData.values();
}
@Override
protected Class<?> getDefaultListenerClass() {
return StepListener.class;
}
@Override
public Class<StepListener> getObjectType() {
return StepListener.class;
}
/**
* Convenience method to wrap any object and expose the appropriate
* {@link StepListener} interfaces.
* @param delegate a delegate object
* @return a StepListener instance constructed from the delegate
*/
public static StepListener getListener(Object delegate) {
StepListenerFactoryBean factory = new StepListenerFactoryBean();
factory.setDelegate(delegate);
return (StepListener) factory.getObject();
}
/**
* Convenience method to check whether the given object is or can be made into a
* {@link StepListener}.
* @param delegate the object to check
* @return true if the delegate is an instance of any of the {@link StepListener}
* interfaces, or contains the marker annotations
*/
public static boolean isListener(Object delegate) {
return AbstractListenerFactoryBean.isListener(delegate, StepListener.class, StepListenerMetaData.values());
}
}
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