01: /*
02: * Copyright 2002-2005 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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.
15: */
16:
17: package org.springframework.beans.factory;
18:
19: /**
20: * Interface to be implemented by beans that want to release resources
21: * on destruction. A BeanFactory is supposed to invoke the destroy
22: * method if it disposes a cached singleton. An application context
23: * is supposed to dispose all of its singletons on close.
24: *
25: * <p>An alternative to implementing DisposableBean is specifying a custom
26: * destroy-method, for example in an XML bean definition.
27: * For a list of all bean lifecycle methods, see the BeanFactory javadocs.
28: *
29: * @author Juergen Hoeller
30: * @since 12.08.2003
31: * @see org.springframework.beans.factory.support.RootBeanDefinition#getDestroyMethodName
32: * @see org.springframework.context.ConfigurableApplicationContext#close
33: */
34: public interface DisposableBean {
35:
36: /**
37: * Invoked by a BeanFactory on destruction of a singleton.
38: * @throws Exception in case of shutdown errors.
39: * Exceptions will get logged but not rethrown to allow
40: * other beans to release their resources too.
41: */
42: void destroy() throws Exception;
43:
44: }
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