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    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    * Callback that allows a bean to be aware of the bean
   21    * {@link ClassLoader class loader}; that is, the class loader used by the
   22    * present bean factory to load bean classes.
   23    *
   24    * <p>This is mainly intended to be implemented by framework classes which
   25    * have to pick up application classes by name despite themselves potentially
   26    * being loaded from a shared class loader.
   27    *
   28    * <p>For a list of all bean lifecycle methods, see the
   29    * {@link BeanFactory BeanFactory javadocs}.
   30    *
   31    * @author Juergen Hoeller
   32    * @since 2.0
   33    * @see BeanNameAware
   34    * @see BeanFactoryAware
   35    * @see InitializingBean
   36    */
   37   public interface BeanClassLoaderAware {
   38   
   39   	/**
   40   	 * Callback that supplies the bean {@link ClassLoader class loader} to
   41   	 * a bean instance.
   42   	 * <p>Invoked <i>after</i> the population of normal bean properties but
   43   	 * <i>before</i> an initialization callback such as
   44   	 * {@link org.springframework.beans.factory.InitializingBean InitializingBean's}
   45   	 * {@link org.springframework.beans.factory.InitializingBean#afterPropertiesSet()}
   46   	 * method or a custom init-method.
   47   	 * @param classLoader the owning class loader; may be <code>null</code> in
   48   	 * which case a default <code>ClassLoader</code> must be used, for example
   49   	 * the <code>ClassLoader</code> obtained via
   50   	 * {@link org.springframework.util.ClassUtils#getDefaultClassLoader()}
   51   	 */
   52   	void setBeanClassLoader(ClassLoader classLoader);
   53   
   54   }

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