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 *
 * Copyright (c) 2010-2013 Oracle and/or its affiliates. All rights reserved.
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 * 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
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 *
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package javax.ws.rs;

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

/**
 * Defines the default value of request meta-data that is bound using one of the
 * following annotations:
 * {@link javax.ws.rs.PathParam},
 * {@link javax.ws.rs.QueryParam},
 * {@link javax.ws.rs.MatrixParam},
 * {@link javax.ws.rs.CookieParam},
 * {@link javax.ws.rs.FormParam},
 * or {@link javax.ws.rs.HeaderParam}.
 * The default value is used if the corresponding meta-data is not present in the
 * request.
 * 
 * If the type of the annotated parameter is {@link java.util.List},
 * {@link java.util.Set} or {@link java.util.SortedSet} then the resulting collection
 * will have a single entry mapped from the supplied default value.
 * 
 * 
 * If this annotation is not used and the corresponding meta-data is not
 * present in the request, the value will be an empty collection for
 * {@code List}, {@code Set} or {@code SortedSet}, {@code null} for
 * other object types, and the Java-defined default for primitive types.
 * 
 *
 * @author Paul Sandoz
 * @author Marc Hadley
 * @see PathParam
 * @see QueryParam
 * @see FormParam
 * @see HeaderParam
 * @see MatrixParam
 * @see CookieParam
 * @since 1.0
 */
@Target({ElementType.PARAMETER, ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface DefaultValue {

    /**
     * The specified default value.
     */
    String value();
}