javax.servlet.annotation.HandlesTypes.java Source code

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/*
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 *
 * Copyright (c) 2017-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
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 * or LICENSE.txt.  See the License for the specific
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 * file and include the License file at LICENSE.txt.
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 * GPL Classpath Exception:
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package javax.servlet.annotation;

import java.lang.annotation.Target;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * This annotation is used to declare the class types that a
 * {@link javax.servlet.ServletContainerInitializer
 * ServletContainerInitializer} can handle.
 *
 * @see javax.servlet.ServletContainerInitializer
 *
 * @since Servlet 3.0
 */
@Target({ ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface HandlesTypes {

    /**
     * The classes in which a {@link javax.servlet.ServletContainerInitializer
     * ServletContainerInitializer} has expressed interest.
     *
     * <p>If an implementation of <tt>ServletContainerInitializer</tt> 
     * specifies this annotation, the Servlet container must pass the
     * <tt>Set</tt> of application classes that extend, implement, or have
     * been annotated with the class types listed by this annotation to
     * the {@link javax.servlet.ServletContainerInitializer#onStartup}
     * method of the ServletContainerInitializer (if no matching classes
     * are found, <tt>null</tt> must be passed instead)
     * 
     * @return the classes in which {@link javax.servlet.ServletContainerInitializer
     *         ServletContainerInitializer} has expressed interest
     */
    Class<?>[] value();
}