Java tutorial
/** * Copyright (C) 2012 eXo Platform SAS. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.minhthuong.pfi.validator; import com.minhthuong.pfi.form.AddPeopleForm; import com.minhthuong.pfi.model.People; import org.springframework.validation.Errors; import org.springframework.validation.ValidationUtils; import org.springframework.validation.Validator; import java.util.logging.Logger; /** * @author <a href="kienna@exoplatform.com">Kien Nguyen</a> * @version $Revision$ */ public class PeopleValidator implements Validator { private static Logger log = Logger.getLogger("PeopleValidator"); /** * @see org.springframework.validation.Validator#supports(java.lang.Class) */ public boolean supports(Class<?> clazz) { return People.class.isAssignableFrom(clazz); } /** * @see org.springframework.validation.Validator#validate(java.lang.Object, org.springframework.validation.Errors) */ public void validate(Object target, Errors errors) { log.info("validator object"); AddPeopleForm form = (AddPeopleForm) target; ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "NotEmpty.people.name"); ValidationUtils.rejectIfEmptyOrWhitespace(errors, "address", "NotEmpty.people.address"); String name = form.getName(); if (name.length() > 100 || name.length() < 10) { errors.rejectValue("name", "fieldLength"); } } }