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 * 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.xml.internal.bind.v2.model.annotation;

import java.lang.annotation.Annotation;

import com.sun.xml.internal.bind.v2.runtime.Location;

/**

 * Base implementation of {@link Locatable} {@link Annotation}.

 *

 * <p>

 * Derived classes of this class is provided for annotations that are commonly

 * used in JAXB, to improve the performance of {@link LocatableAnnotation#create}.

 *

 * @author Kohsuke Kawaguchi

 */

public /*so that our code generator can refer to this class*/ abstract class Quick implements Annotation, Locatable, Location {

    private final Locatable upstream;

    protected Quick(Locatable upstream) {

        this.upstream = upstream;

    }

    /**

     * Gets the annotation object that this object is wrapping.

     */

    protected abstract Annotation getAnnotation();

    /**

     * Factory method to create a new instance of the same kind.

     * A {@link Quick} object also works as a factory of itself

     */

    protected abstract Quick newInstance( Locatable upstream, Annotation core );

    public final Location getLocation() {

        return this;

    }

    public final Locatable getUpstream() {

        return upstream;

    }

    public final String toString() {

        return getAnnotation().toString();

    }

}