/*

 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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 *

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package com.sun.javadoc;

/**

 * Represents a wildcard type argument.

 * Examples include:    <pre>

 * {@code <?>}

 * {@code <? extends E>}

 * {@code <? super T>}

 * </pre>

 * A wildcard type can have explicit <i>extends</i> bounds

 * or explicit <i>super</i> bounds or neither, but not both.

 *

 * @author Scott Seligman

 * @since 1.5

 */

public interface WildcardType extends Type {

    /**

     * Return the upper bounds of this wildcard type argument

     * as given by the <i>extends</i> clause.

     * Return an empty array if no such bounds are explicitly given.

     *

     * @return the extends bounds of this wildcard type argument

     */

    Type[] extendsBounds();

    /**

     * Return the lower bounds of this wildcard type argument

     * as given by the <i>super</i> clause.

     * Return an empty array if no such bounds are explicitly given.

     *

     * @return the super bounds of this wildcard type argument

     */

    Type[] superBounds();

}