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EntityManagerFactory.java
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EntityManagerFactory.java
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/**
* Copyright (C) 2016 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.model;
import java.util.Map;
import cz.cvut.kbss.jopa.model.metamodel.Metamodel;
import cz.cvut.kbss.jopa.sessions.Cache;
public interface EntityManagerFactory {
/**
* Create a new application-managed EntityManager. This method returns a new
* EntityManager instance each time it is invoked. The isOpen method will
* return true on the returned instance.
*
* @return entity manager instance
* @throws IllegalStateException
* if the entity manager factory has been closed
*/
public EntityManager createEntityManager();
/**
* Create a new EntityManager with the specified Map of properties. This
* method returns a new EntityManager instance each time it is invoked. The
* isOpen method will return true on the returned instance.
*/
public EntityManager createEntityManager(Map<String, String> map);
// TODO JPA 2.0 getCriteriaBuilder
/**
* Return an instance of Metamodel interface for access to the metamodel of
* the persistence unit.
*
* @return Metamodel instance
* @throws IllegalStateException
* if the entity manager factory has been closed
*/
public Metamodel getMetamodel();
/**
* Close the factory, releasing any resources that it holds. After a factory
* instance is closed, all methods invoked on it will throw an
* IllegalStateException, except for isOpen, which will return false. Once
* an EntityManagerFactory has been closed, all its entity managers are
* considered to be in the closed state.
*/
public void close();
/**
* Indicates whether the factory is open. Returns true until the factory has
* been closed.
*
* @return true if the entity manager is open
* @throws IllegalStateException
* if the entity manager factory has been closed
*/
public boolean isOpen();
public Map<String, String> getProperties();
/**
* Access the cache that is associated with the entity manager factory (the
* "second level cache").
*
* @return instance of the Cache interface
* @throws IllegalStateException
* if the entity manager factory has been closed
*/
public Cache getCache();
public PersistenceUnitUtil getPersistenceUnitUtil();
}