myvalidationdelegate.java

学习tapestry的好书啊,绝对经典实用.

package com.cucu.tapestry.validation;

import org.apache.tapestry.valid.ValidationDelegate;
import org.apache.tapestry.valid.IValidator;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.form.IFormComponent;

/**
 * 自定义验证代理
 *
 * @author 绝情酷哥
 * @version $Id$
 */
public class MyValidationDelegate extends ValidationDelegate {
    /**
     * 修改后缀
     *
     * @param writer
     * @param cycle
     * @param component
     * @param validator
     */
    public void writeSuffix(IMarkupWriter writer, IRequestCycle cycle,
                            IFormComponent component, IValidator validator) {
        if (isInError()) {
//            writer.printRaw(" ");
//            writer.begin("img");
//            writer.attribute("src", "images/field-error.png");
//            writer.end();
        }
    }

    public void writeAttributes(IMarkupWriter writer, IRequestCycle cycle,
                                IFormComponent component, IValidator validator) {
        if (isInError()) {
//          writer.attribute("style", "background:red");
        }
    }
}