DisposableBean.java

/*
 * Copyright 2002-2005 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
 * 
 *      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.springframework.beans.factory;

/**
 * Interface to be implemented by beans that want to release resources
 * on destruction. A BeanFactory is supposed to invoke the destroy
 * method if it disposes a cached singleton. An application context
 * is supposed to dispose all of its singletons on close.
 *
 * <p>An alternative to implementing DisposableBean is specifying a custom
 * destroy-method, for example in an XML bean definition.
 * For a list of all bean lifecycle methods, see the BeanFactory javadocs.
 *
 * @author Juergen Hoeller
 * @since 12.08.2003
 * @see org.springframework.beans.factory.support.RootBeanDefinition#getDestroyMethodName
 * @see org.springframework.context.ConfigurableApplicationContext#close
 */
public interface DisposableBean {

	/**
	 * Invoked by a BeanFactory on destruction of a singleton.
	 * @throws Exception in case of shutdown errors.
	 * Exceptions will get logged but not rethrown to allow
	 * other beans to release their resources too.
	 */
	void destroy() throws Exception;

}