Java tutorial
/* * Copyright 2014 MIR@MU. * * 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 cz.muni.fi.mir.db.service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import cz.muni.fi.mir.db.dao.UserRoleDAO; import cz.muni.fi.mir.db.domain.UserRole; import cz.muni.fi.mir.db.service.UserRoleService; /** * * @author Dominik Szalai - emptulik at gmail.com */ @Service(value = "userRoleService") @Transactional(readOnly = false) public class UserRoleServiceImpl implements UserRoleService { @Autowired UserRoleDAO userRoleDAO; @Override public void createUserRole(UserRole userRole) throws IllegalArgumentException { if (userRole == null) { throw new IllegalArgumentException("Given input is null."); } userRoleDAO.create(userRole); } @Override public void updateUserRole(UserRole userRole) throws IllegalArgumentException { InputChecker.checkInput(userRole); userRoleDAO.update(userRole); } @Override public void deleteUserRole(UserRole userRole) throws IllegalArgumentException { InputChecker.checkInput(userRole); userRoleDAO.delete(userRole.getId()); } @Override @Transactional(readOnly = true) public UserRole getUserRoleByID(Long id) throws IllegalArgumentException { if (id == null || Long.valueOf("0").compareTo(id) >= 0) { throw new IllegalArgumentException( "Given entity does not have valid id should be greater than one but was [" + id + "]"); } return userRoleDAO.getByID(id); } @Override @Transactional(readOnly = true) public UserRole getUserRoleByName(String roleName) throws IllegalArgumentException { if (roleName == null || roleName.length() < 1) { throw new IllegalArgumentException( "Given input string is empty. Expected role name but was [" + roleName + "]"); } return userRoleDAO.getUserRoleByName(roleName); } @Override @Transactional(readOnly = true) public List<UserRole> getAllUserRoles() { return userRoleDAO.getAllUserRoles(); } }