numericoptionstag.java

来自「jGossip是一个简单而功能强大的Java论坛软件（消息板）」· Java 代码 · 共 112 行

/*
 * $$Id: NumericOptionsTag.java,v 1.3 2004/01/26 11:32:05 bel70 Exp $$
 *
 * ***** BEGIN LICENSE BLOCK *****
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in 
 * compliance with the License. You may obtain a copy of the License 
 * at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and 
 * limitations under the License.
 *
 * The Original Code is JGossip forum code.
 *
 * The Initial Developer of the Original Code is the JResearch, Org. 
 * Portions created by the Initial Developer are Copyright (C) 2004 
 * the Initial Developer. All Rights Reserved. 
 * 
 * Contributor(s): 
 *              Dmitry Belov <[e-mail]>
 *        
 * ***** END LICENSE BLOCK ***** */
/*
 * Created on 04.06.2003
 *
 */
package org.jresearch.gossip.tags;


import java.util.ArrayList;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;


/**
 * DOCUMENT ME!
 *
 * @author Bel
 */
public class NumericOptionsTag extends TagSupport {
    private int startValue;
    private int endValue;
    private int step = 1;

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     *
     * @throws JspException DOCUMENT ME!
     */
    public int doStartTag() throws JspException {
        try {
            ArrayList options = new ArrayList();

            if (startValue < endValue) {
                while (startValue <= endValue) {
                    OptionBean option = new OptionBean();
                    option.setLabelProperty(startValue + "");
                    option.setProperty(startValue + "");
                    options.add(option);
                    startValue += step;
                }
            } else {
                while (startValue >= endValue) {
                    OptionBean option = new OptionBean();
                    option.setLabelProperty(startValue + "");
                    option.setProperty(startValue + "");
                    options.add(option);
                    startValue -= step;
                }
            }

            pageContext.setAttribute("NumericOptions", options);
        } catch (Exception ex) {
            throw new JspException("error in NumericOptionsTag tag:", ex);
        }

        return (SKIP_BODY);
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setEndValue(int i) {
        endValue = i;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setStartValue(int i) {
        startValue = i;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setStep(int i) {
        step = i;
    }
}