HierarchicalBeanFactory


1   /*
2    * Copyright 2002-2006 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
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   * Sub-interface implemented by bean factories that can be part
21   * of a hierarchy.
22   *
23   * <p>The corresponding <code>setParentBeanFactory</code> method for bean
24   * factories that allow setting the parent in a configurable
25   * fashion can be found in the ConfigurableBeanFactory interface.
26   *
27   * @author Rod Johnson
28   * @author Juergen Hoeller
29   * @since 07.07.2003
30   * @see org.springframework.beans.factory.config.ConfigurableBeanFactory#setParentBeanFactory
31   */
32  public interface HierarchicalBeanFactory extends BeanFactory {
33      
34      /**
35       * Return the parent bean factory, or <code>null</code> if there is none.
36       */
37      BeanFactory getParentBeanFactory();
38  
39      /**
40       * Return whether the local bean factory contains a bean of the given name,
41       * ignoring beans defined in ancestor contexts.
42       * <p>This is an alternative to <code>containsBean</code>, ignoring a bean
43       * of the given name from an ancestor bean factory.
44       * @param name the name of the bean to query
45       * @return whether a bean with the given name is defined in the local factory
46       * @see org.springframework.beans.factory.BeanFactory#containsBean
47       */
48      boolean containsLocalBean(String   name);
49  
50  }
51
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