/*
 * 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 io.opensharding.transaction.hibernate;

import io.opensharding.transaction.spi.JpaConnectionExtractor;
import org.hibernate.engine.spi.SessionImplementor;

import javax.persistence.EntityManager;
import java.sql.Connection;

/**
 * Hibernate connection extractor.
 *
 * @author yangyi
 */
public final class HibernateConnectionExtractor implements JpaConnectionExtractor {
    
    @Override
    public Connection getConnectionFromEntityManager(final EntityManager entityManager) {
        return entityManager.unwrap(SessionImplementor.class).connection();
    }
}
