jdoccomment.java

把java对象映射成数据库表中的一条记录

/**
 * 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 Exoffice Technologies.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Exoffice Technologies. Exolab is a registered
 *    trademark of Exoffice Technologies.
 *
 * 5. Due credit should be given to the Exolab Project
 *    (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES 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
 * EXOFFICE TECHNOLOGIES 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 (C) Exoffice Technologies Inc. All Rights Reserved.
 *
 * $Id: JDocComment.java,v 1.1 2001/08/07 18:58:43 joncrlsn Exp $
 */


package org.exolab.javasource;

import java.util.Enumeration;
import java.util.Vector;

import java.io.*;

/**
 * A class that "SOMEWHAT" represents a Java Doc Comment.
 * @author <a href="mailto:[e-mail]">Keith Visco</a>
 * @version $Revision: 1.1 $ $Date: 2001/08/07 18:58:43 $
**/
public class JDocComment {

        
       
    /**
     * An ordered list of descriptors
    **/
    private Vector       _descriptors = null;
    
    /** 
     * The internal buffer for this JDocComment
    **/
    private StringBuffer _comment     = null;
    
    /**
     * Creates a new JavaDoc Comment
    **/
    public JDocComment() {
        super();
        _descriptors = new Vector();
        _comment     = new StringBuffer();
    } //--  JDocComment

    /**
     * Adds the given exception to this JDocComment
     * @param name the name of the exception
     * @param desc the description of the exception
    **/
    public void addDescriptor(JDocDescriptor jdesc) {
        
        if (jdesc == null) return;
        //-- on the fly sorting of descriptors
        if (_descriptors.size() == 0) {
            _descriptors.addElement(jdesc);
            return;
        }
            
        for (int i = 0; i < _descriptors.size(); i++) {
            JDocDescriptor jdd 
                = (JDocDescriptor)_descriptors.elementAt(i);
            
            short compare = jdesc.compareTo(jdd);
            
            switch (compare) {
                case  0: // equal
                    _descriptors.insertElementAt(jdesc, i+1);
                    return;
                case -1: //-- less than
                    _descriptors.insertElementAt(jdesc, i);
                    return;
                case  1:
                    //-- keep looking
                    break;
            }
        }
        
        //-- if we make it here we need to add
        _descriptors.addElement(jdesc);
        
    } //-- addException
    
    /**
     * Appends the comment String to this JDocComment
     * @param comment the comment to append
    **/
    public void appendComment(String comment) {
        _comment.append(comment);
    } //-- appendComment
    
    /**
     * Returns an enumeration of the parameters of this JDocComment
     * @return an enumeration of the parameters of this JDocComment
    **/
    public Enumeration getDescriptors() {
        return _descriptors.elements();
    } //-- getDescriptors
    
    /**
     * prints this JavaDoc comment using the given JSourceWriter
    **/
    public void print(JSourceWriter jsw) {
        
        //-- I reuse JComment for printing
        JComment jComment = new JComment(JComment.JAVADOC_STYLE);
        
        jComment.setComment(_comment.toString());
        
        for (int i = 0; i < _descriptors.size(); i++) {
            jComment.appendComment("\n");
            jComment.appendComment(_descriptors.elementAt(i).toString());
        }
        jComment.print(jsw);
    } //-- print
    
    /**
     * Sets the comment String of this JDocComment
     * @param comment the comment String of this JDocComment
    **/
    public void setComment(String comment) {
        _comment.setLength(0);
        _comment.append(comment);
    } //-- setComment
    
    /**
     * Returns the String representation of this Java Doc Comment
     * @return the String representation of this Java Doc Comment
    **/
    public String toString() {
        StringBuffer sb = new StringBuffer();
        sb.append("/**\n");
        sb.append(" * ");
        
        sb.append("**/\n");

        return sb.toString();
    } //-- toString

} //-- JDocComment