validator.java

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// Copyright 2005-2007 onetsoft.com
//
// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.onetsoft.fastjsp.valid;

import java.util.Locale;

/**
 * 验证器接口
 *
 * @author <a href="mailto:[e-mail]">hgw</a>
 */
public interface Validator extends Cloneable {

    /**
     * 校验指定域的输入
     *
     * @param Value
     * @param locale
     * @param provider
     * @return 返回校验结果信息。若成功，返回null，否则返回错误信息
     *         返回消息为格式化字符串，如："{0}不能小于100"
     */
    String validate(String Value, Locale locale, ValidationMessageProvider provider);

    /**
     * 取得错误信息
     *
     * @param locale
     * @param provider
     * @return
     */
    String getMessagePattern(Locale locale, ValidationMessageProvider provider);

    /**
     * 取得验证限定
     * 若没有就返回空字符串
     *
     * @return
     */
    String getLimit();

    /**
     * 取得javascript验证方法名称
     *
     * @return
     */
    String getJSFunction();


    Object clone();
}