Java tutorial
/** * Licensed to Jasig under one or more contributor license * agreements. See the NOTICE file distributed with this work * for additional information regarding copyright ownership. * Jasig licenses this file to you 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 org.jasig.portlet.ClassifiedsPortlet.domain; import org.jasig.portlet.ClassifiedsPortlet.domain.Heading; import org.springframework.validation.Errors; import org.springframework.validation.ValidationUtils; import org.springframework.validation.Validator; import java.util.*; import java.util.Date; public class SubmitHeadingFormValidator implements Validator { public boolean supports(Class clazz) { return Ad.class.isAssignableFrom(clazz); } public void validate(Object target, Errors errors) { ValidationUtils.rejectIfEmptyOrWhitespace(errors, "headingname", "required.headingname"); Heading form = (Heading) target; if (form.getHeadingname().length() > 36) { errors.rejectValue("headingname", "tolong.heading"); } ; } }