Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.openmrs.validator; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.openmrs.EncounterRole; import org.openmrs.annotation.Handler; import org.openmrs.api.APIException; import org.springframework.validation.Errors; import org.springframework.validation.ValidationUtils; import org.springframework.validation.Validator; /** * Validator for {@link org.openmrs.EncounterRole} class * * @since 1.9 */ @Handler(supports = { EncounterRole.class }, order = 50) public class EncounterRoleValidator implements Validator { private static final Log log = LogFactory.getLog(EncounterRoleValidator.class); /** * Returns whether or not this validator supports validating a given class. * * @param c The class to check for support. * @see org.springframework.validation.Validator#supports(Class) */ @SuppressWarnings("rawtypes") public boolean supports(Class c) { if (log.isDebugEnabled()) log.debug(this.getClass().getName() + ".supports: " + c.getName()); return EncounterRole.class.isAssignableFrom(c); } /** * Validates the given EncounterRole. Currently checks if name * of the encounter role is given or not. * @param obj The encounter role to validate. * @param errors Errors * @see org.springframework.validation.Validator#validate(Object, * org.springframework.validation.Errors) * @should fail if the name of the encounter role is not set */ public void validate(Object obj, Errors errors) throws APIException { if (log.isDebugEnabled()) log.debug(this.getClass().getName() + ".validate..."); if (obj == null || !(obj instanceof EncounterRole)) throw new IllegalArgumentException( "The parameter obj should not be null and must be of type " + EncounterRole.class); EncounterRole encounterRole = (EncounterRole) obj; if (encounterRole != null) { ValidationUtils.rejectIfEmpty(errors, "name", "error.null"); } } }