MailingListCommandValidator.java

/*
 * Copyright 2008 Jeff Dwyer
 * 
 * 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.apress.progwt.server.web.domain.validation;

import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

import com.apress.progwt.server.web.domain.MailingListCommand;

public class MailingListCommandValidator implements Validator {

    public boolean supports(Class clazz) {
        return clazz.equals(MailingListCommand.class);
    }

    /**
     * lookup messages from resource bundle
     */
    public void validate(Object command, Errors errors) {
        ValidationUtils.rejectIfEmptyOrWhitespace(errors, "email",
                "required");
    }

}