org.sharetask.repository.base.BaseJpaRepositoryImpl.java Source code

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Here is the source code for org.sharetask.repository.base.BaseJpaRepositoryImpl.java

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/*
 * 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.sharetask.repository.base;

import java.io.Serializable;

import javax.persistence.EntityManager;
import javax.persistence.EntityNotFoundException;

import org.springframework.data.jpa.repository.support.SimpleJpaRepository;

/**
 * @author Michal Bocek
 * @since 1.0.0
 */
public class BaseJpaRepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID>
        implements BaseJpaRepository<T, ID> {

    private final EntityManager entityManager;
    private final Class<T> entityClass;

    public BaseJpaRepositoryImpl(final Class<T> entityClass, final EntityManager entityManager) {
        super(entityClass, entityManager);
        this.entityManager = entityManager;
        this.entityClass = entityClass;
    }

    public T read(final ID id) {
        final T entity = entityManager.find(this.entityClass, id);
        if (entity == null) {
            throw new EntityNotFoundException(
                    "Entity for class " + this.entityClass + " with id " + id + " can not be found!");
        }
        return entity;
    }
}