/* | |
* 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.deltaspike.data.api; | |
import java.io.Serializable; | |
import javax.persistence.EntityManager; | |
import javax.persistence.TypedQuery; | |
import javax.persistence.criteria.CriteriaQuery; | |
/** | |
* Base Repository class to be extended by concrete implementations | |
* (abstract classes with implementation methods). | |
* | |
* @param <E> Entity type. | |
* @param <PK> Primary key type. | |
*/ | |
@Repository | |
public abstract class AbstractEntityRepository<E, PK extends Serializable> | |
implements EntityRepository<E, PK>, EntityPersistenceRepository<E, PK>, | |
EntityCountRepository<E> | |
{ | |
/** | |
* Utility method to get hold of the entity manager for this Repository. | |
* @return Entity manager instance. | |
*/ | |
protected abstract EntityManager entityManager(); | |
/** | |
* Utility method to create a criteria query. | |
* @return Criteria query | |
*/ | |
protected abstract CriteriaQuery<E> criteriaQuery(); | |
/** | |
* Utility method to create a typed query. | |
* @param qlString Query string | |
* @return Typed query | |
*/ | |
protected abstract TypedQuery<E> typedQuery(String qlString); | |
/** | |
* Get the entity class this Repository is related to. | |
* @return Repository entity class. | |
*/ | |
protected abstract Class<E> entityClass(); | |
/** | |
* Get the entity table name this Repository is related to. | |
* @return Repository entity table name. | |
*/ | |
protected abstract String tableName(); | |
/** | |
* Get the entity name this Repository is related to. | |
* @return Repository entity name. | |
*/ | |
protected abstract String entityName(); | |
} |