Java tutorial
/* * eID PKI RA Project. * Copyright (C) 2010-2014 FedICT. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License version * 3.0 as published by the Free Software Foundation. * * 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, see * http://www.gnu.org/licenses/. */ package be.fedict.eid.pkira.blm.model.certificatedomain.validation; import org.apache.commons.lang.StringUtils; import org.hibernate.validator.Validator; import org.jboss.seam.Component; import be.fedict.eid.pkira.blm.model.certificatedomain.CertificateDomain; import be.fedict.eid.pkira.blm.model.certificatedomain.CertificateDomainHome; /** * @author Bram Baeyens * */ public class UniqueCertificateDomainNameValidator implements Validator<UniqueCertificateDomainName> { @Override public void initialize(UniqueCertificateDomainName constraintAnnotation) { } @Override public boolean isValid(Object value) { if (StringUtils.isEmpty((String) value)) { return true; } CertificateDomainHome certificateDomainHome = (CertificateDomainHome) Component .getInstance(CertificateDomainHome.NAME); CertificateDomain certificateDomain = certificateDomainHome.findByName((String) value); if (certificateDomain == null || certificateDomain.equals(certificateDomainHome.getInstance())) { return true; } return false; } }