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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 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
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.codemodel;




/**
 * A field that can have a {@link JDocComment} associated with it
 */
public class JFieldVar extends JVar implements JDocCommentable {

    /**
     * javadoc comments for this JFieldVar
     */
    private JDocComment jdoc = null;

    private final JDefinedClass owner;


    /**
     * JFieldVar constructor
     *
     * @param type
     *        Datatype of this variable
     *
     * @param name
     *        Name of this variable
     *
     * @param init
     *        Value to initialize this variable to
     */
    JFieldVar(JDefinedClass owner, JMods mods, JType type, String name, JExpression init) {
        super( mods, type, name, init );
        this.owner = owner;
    }

    @Override
    public void name(String name) {
        // make sure that the new name is available
        if(owner.fields.containsKey(name))
            throw new IllegalArgumentException("name "+name+" is already in use");
        String oldName = name();
        super.name(name);
        owner.fields.remove(oldName);
        owner.fields.put(name,this);
    }

    /**
     * Creates, if necessary, and returns the class javadoc for this
     * JDefinedClass
     *
     * @return JDocComment containing javadocs for this class
     */
    public JDocComment javadoc() {
        if( jdoc == null ) 
            jdoc = new JDocComment(owner.owner());
        return jdoc;
    }

    public void declare(JFormatter f) {
        if( jdoc != null )
            f.g( jdoc );
        super.declare( f );
    }

   
}