/**
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of Intalio, Inc.  For written permission,
 *    please contact info@exolab.org.
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Intalio, Inc. Exolab is a registered
 *    trademark of Intalio, Inc.
 *
 * 5. Due credit should be given to the Exolab Project
 *    (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 1999-2000 (C) Intalio, Inc. All Rights Reserved.
 *
 * $Id: JField.java,v 1.3 2005/02/27 00:30:28 kvisco Exp $
 */

package org.exolab.javasource;

/**
 * A class which holds information about a field.
 * Modelled closely after the Java Reflection API.
 * This class is part of package which is used to 
 * create source code in memory.
 * 
 * @author <a href="mailto:keith AT kvisco DOT com">Keith Visco</a>
 * @version $Revision: 1.3 $ $Date: 2005/02/27 00:30:28 $
 */
public class JField extends JAnnotatedElementHelper implements JMember {

    /**
     * The set of modifiers for this JField
    **/
    private JModifiers modifiers = null;

    private JType type = null;

    private String name = null;

    private JDocComment comment = null;

    private String initString = null;
    
    /**
     * The Class in this JField has been declared
    **/
    private JClass declaringClass = null;

    public JField(JType type, String name) {
        
        setName(name);
        this.type = type;
        this.modifiers = new JModifiers();
        this.modifiers.makePrivate();
        comment = new JDocComment();
        comment.appendComment("Field " + name);
        
    } //-- JField

    

    /**
     * Returns the comment describing this member. 
     * @return the comment describing this member, or
     * null if no comment has been set.
    **/
    public JDocComment getComment() {
        return this.comment;
    } //-- getComment

    

    /**
     * Returns the class in which this JField has been declared
     * @return the class in which this JField has been declared
    **/
    public JClass getDeclaringClass() {
        return this.declaringClass;
    } //-- getDeclaringClass

    /**
     * Returns the initialization String for this JField
     * @return the initialization String for this JField,
     * or null if no initialization String was specified.
    **/
    public String getInitString() {
        return initString;
    } //-- getInitString
    
     
    /**
     * Returns the modifiers for this JField
     * @return the modifiers for this JField     
    **/
    public JModifiers getModifiers() {
        return this.modifiers;
    } //-- getModifiers

    /**
     * Returns the name of this JField
     * @return the name of this JField
    **/
    public String getName() {
        return this.name;
    } //-- getName

    /**
     * Returns the JType represting the type of this JField
     * @return the JClass represting the type of this JField
    **/
    public JType getType() {
        return this.type;
    } //-- getType

    /**
     * Sets the comment describing this member. 
     * @param comment the JDocComment for this member
    **/
    public void setComment(JDocComment comment) {
        this.comment = comment;
    } //-- setComment

    /**
     * Sets the comment describing this member. 
     * @param comment the JDocComment for this member
    **/
    public void setComment(String comment) {
        if (this.comment == null) {
            this.comment = new JDocComment();
        }
        this.comment.setComment(comment);
    } //-- setComment

    /**
     * Sets the initialization string for this JField;
     * Allows some flexibility in declaring default values.
     * @param init the initialization string for this member.
    **/
    public void setInitString(String init) {
        this.initString = init;
    } //-- setInitString
    
    /**
     * Sets the name of this JField
     * @param name the name of this JField
     * @exception IllegalArgumentException when the
     * name is not a valid Java member name, or if a member
     * with the given name already exists in the declaring class
    **/
    public void setName(String name) throws 
        IllegalArgumentException
    {
        if (!JNaming.isValidJavaIdentifier(name)) {
            String err = "'" + name + "' is ";
            if (JNaming.isKeyword(name))
                err += "a reserved word and may not be used as "
                    + " a field name.";
            else 
                err += "not a valid Java identifier.";
            throw new IllegalArgumentException(err);
        }
        this.name = name;
    } //-- setName

    public void setModifiers(JModifiers modifiers) {
        this.modifiers = modifiers;
    } //-- setModifiers

    protected void setDeclaringClass(JClass declaringClass) {
        this.declaringClass = declaringClass;
    } //-- setDeclaringClass
   
    public String toString() {
        StringBuffer sb = new StringBuffer();
        sb.append(modifiers.toString());
        sb.append(' ');
        sb.append(type);
        sb.append(' ');
        sb.append(name);
        return sb.toString();
    } //-- toString

} //-- JField

