// 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;



/**
 * @author <a href="mailto:hgw@onetsoft.com">hgw</a>
 */
public interface ValidationDelegate {

    /**
     * 判斷驗證是否有錯
     *
     * @return
     */
    boolean isError();

    /**
     * 判讀指定域是否有錯
     *
     * @param field
     * @return
     */
    boolean isError(String field);

    /**
     * 取得指定域的錯誤信息
     * 若沒有，則返回空字符串""
     *
     * @param field
     * @return
     */
    String getMessage(String field);

    /**
     * 取得所有錯誤消息
     *
     * @return
     */
    String[] getMessages();

    /**
     * 執(zhí)行所有域驗證validators
     *
     * @throws ValidationException
     */
    void validate() throws ValidationException;
}