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package javax.annotation;

import java.lang.annotation.*;
import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;

/**
 * The PostConstruct annotation is used on a method that 
 * needs to be executed after dependency injection is done to perform 
 * any initialization. This  method must be invoked before the class 
 * is put into service. This annotation must be supported on all classes 
 * that support dependency injection. The method annotated with 
 * PostConstruct must be invoked even if the class does 
 * not request any resources to be injected. Only one 
 * method in a given class can be annotated with this annotation. 
 * The method on which the PostConstruct annotation is 
 * applied must fulfill all of the following criteria:
 * 
    *
  • The method must not have any parameters except in the case of * interceptors in which case it takes an InvocationContext * object as defined by the Interceptors specification.
  • *
  • The method defined on an interceptor class or superclass of an * interceptor class must have one of the following signatures: *

    * void <METHOD>(InvocationContext) *

    * Object <METHOD>(InvocationContext) throws Exception *

    * Note: A PostConstruct interceptor method must not throw application * exceptions, but it may be declared to throw checked exceptions including * the java.lang.Exception if the same interceptor method interposes on * business or timeout methods in addition to lifecycle events. If a * PostConstruct interceptor method returns a value, it is ignored by * the container. *

  • *
  • The method defined on a non-interceptor class must have the * following signature: *

    * void <METHOD>() *

  • *
  • The method on which the PostConstruct annotation * is applied may be public, protected, package private or private.
  • *
  • The method must not be static except for the application client.
  • *
  • The method should not be final.
  • *
  • If the method throws an unchecked exception the class must not be put into * service except in the case where the exception is handled by an * interceptor.
* * @see javax.annotation.PreDestroy * @see javax.annotation.Resource * @since 1.6, Common Annotations 1.0 */ @Documented @Retention (RUNTIME) @Target(METHOD) public @interface PostConstruct { }




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