GrepCode: org.springframework.beans.factory.annotation.Autowired (.java) - Annotation

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org.springframework.beans.factory.annotation.Autowired

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 /*
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  * Copyright 2002-2008 the original author or authors.
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  *
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  * Licensed under the Apache License, Version 2.0 (the "License");
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  * you may not use this file except in compliance with the License.
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  * You may obtain a copy of the License at
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  *
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  *      http://www.apache.org/licenses/LICENSE-2.0
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  *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package org.springframework.beans.factory.annotation;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;

 Marks a constructor, field, setter method or config method as to be
 autowired by Spring's dependency injection facilities.

 Only one constructor (at max) of any given bean class may carry this
 annotation, indicating the constructor to autowire when used as a Spring
 bean. Such a constructor does not have to be public.

 
Fields are injected right after construction of a bean, before any
 config methods are invoked. Such a config field does not have to be public.

 
Config methods may have an arbitrary name and any number of arguments;
 each of those arguments will be autowired with a matching bean in the
 Spring container. Bean property setter methods are effectively just
 a special case of such a general config method. Such config methods
 do not have to be public.

 
In the case of multiple argument methods, the 'required' parameter is 
 applicable for all arguments.

 
In case of a java.util.Collection or java.util.Map
 dependency type, the container will autowire all beans matching the
 declared value type. In case of a Map, the keys must be declared as
 type String and will be resolved to the corresponding bean names.

 
Please do consult the javadoc for the AutowiredAnnotationBeanPostProcessor
 class (which, by default, checks for the presence of this annotation).

 
 Author(s):Juergen HoellerMark Fisher Since:2.5 See also:AutowiredAnnotationBeanPostProcessor
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.CONSTRUCTOR, ElementType.FIELD, ElementType.METHOD})
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public @interface Autowired {

	
 Declares whether the annotated dependency is required.
 Defaults to true.
 
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	boolean required() default true;
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}