| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.ambari.server.orm.dao; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.persist.Transactional; |
| import org.apache.ambari.server.orm.entities.KeyValueEntity; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.TypedQuery; |
| import java.util.Collection; |
| |
| public class KeyValueDAO { |
| |
| @Inject |
| Provider<EntityManager> entityManagerProvider; |
| @Inject |
| DaoUtils daoUtils; |
| |
| @Transactional |
| public KeyValueEntity findByKey(String key) { |
| return entityManagerProvider.get().find(KeyValueEntity.class, key); |
| } |
| |
| @Transactional |
| public Collection<KeyValueEntity> findAll() { |
| TypedQuery<KeyValueEntity> query = |
| entityManagerProvider.get().createQuery("SELECT keyValue FROM KeyValueEntity keyValue", KeyValueEntity.class); |
| return daoUtils.selectList(query); |
| } |
| |
| @Transactional |
| public void refresh(KeyValueEntity keyValueEntity) { |
| entityManagerProvider.get().refresh(keyValueEntity); |
| } |
| |
| @Transactional |
| public void create(KeyValueEntity keyValueEntity) { |
| entityManagerProvider.get().persist(keyValueEntity); |
| } |
| |
| @Transactional |
| public KeyValueEntity merge(KeyValueEntity keyValueEntity) { |
| return entityManagerProvider.get().merge(keyValueEntity); |
| } |
| |
| @Transactional |
| public void remove(KeyValueEntity keyValueEntity) { |
| entityManagerProvider.get().remove(merge(keyValueEntity)); |
| } |
| |
| @Transactional |
| public void removeByHostName(String key) { |
| remove(findByKey(key)); |
| } |
| |
| } |