SmartInstantiationAwareBeanPostProcessor


1   /*
2    * Copyright 2002-2007 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.config;
18  
19  import org.springframework.beans.BeansException;
20  
21  /**
22   * Extension of the {@link InstantiationAwareBeanPostProcessor} interface,
23   * adding a callback for predicting the eventual type of a processed bean.
24   *
25   * <p><b>NOTE:</b> This interface is a special purpose interface, mainly for
26   * internal use within the framework. In general, application-provided
27   * post-processors should simply implement the plain
28   * {@link InstantiationAwareBeanPostProcessor} interface or derive from
29   * the {@link InstantiationAwareBeanPostProcessorAdapter} class.
30   * New methods might be added to this interface even in point releases.
31   *
32   * @author Juergen Hoeller
33   * @since 2.0.3
34   */
35  public interface SmartInstantiationAwareBeanPostProcessor extends InstantiationAwareBeanPostProcessor {
36  
37      /**
38       * Predict the type of the bean to be eventually returned from this
39       * processor's {@link #postProcessBeforeInstantiation} callback.
40       * @param beanClass the raw class of the bean
41       * @param beanName the name of the bean
42       * @return the type of the bean, or <code>null</code> if not predictable
43       * @throws org.springframework.beans.BeansException in case of errors
44       */
45      Class   predictBeanType(Class   beanClass, String   beanName) throws BeansException;
46  
47  }
48

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