javax.persistence.spi.PersistenceProvider Maven / Gradle / Ivy
Show all versions of javax.persistence Show documentation
/*
* Copyright (c) 2008, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Linda DeMichiel - Java Persistence 2.1
// Linda DeMichiel - Java Persistence 2.0
package javax.persistence.spi;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceException;
import java.util.Map;
/**
* Interface implemented by the persistence provider.
*
* It is invoked by the container in Java EE environments and
* by the {@link javax.persistence.Persistence} class in Java SE environments to
* create an {@link javax.persistence.EntityManagerFactory} and/or to cause
* schema generation to occur.
*
* @since Java Persistence 1.0
*/
public interface PersistenceProvider {
/**
* Called by Persistence class when an
* EntityManagerFactory is to be created.
*
* @param emName the name of the persistence unit
* @param map a Map of properties for use by the
* persistence provider. These properties may be used to
* override the values of the corresponding elements in
* the persistence.xml file or specify values for
* properties not specified in the persistence.xml
* (and may be null if no properties are specified).
* @return EntityManagerFactory for the persistence unit,
* or null if the provider is not the right provider
*/
public EntityManagerFactory createEntityManagerFactory(String emName, Map map);
/**
* Called by the container when an EntityManagerFactory
* is to be created.
*
* @param info metadata for use by the persistence provider
* @param map a Map of integration-level properties for use
* by the persistence provider (may be null if no properties
* are specified). These properties may include properties to
* control schema generation.
* If a Bean Validation provider is present in the classpath,
* the container must pass the ValidatorFactory instance in
* the map with the key "javax.persistence.validation.factory".
* If the containing archive is a bean archive, the container
* must pass the BeanManager instance in the map with the key
* "javax.persistence.bean.manager".
* @return EntityManagerFactory for the persistence unit
* specified by the metadata
*/
public EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, Map map);
/**
* Create database schemas and/or tables and/or create DDL
* scripts as determined by the supplied properties.
*
* Called by the container when schema generation is to
* occur as a separate phase from creation of the entity
* manager factory.
*
* @param info metadata for use by the persistence provider
* @param map properties for schema generation; these may
* also include provider-specific properties
* @throws PersistenceException if insufficient or inconsistent
* configuration information is provided of if schema
* generation otherwise fails
*
* @since Java Persistence 2.1
*/
public void generateSchema(PersistenceUnitInfo info, Map map);
/**
* Create database schemas and/or tables and/or create DDL
* scripts as determined by the supplied properties.
*
* Called by the Persistence class when schema generation is to
* occur as a separate phase from creation of the entity
* manager factory.
*
* @param persistenceUnitName the name of the persistence unit
* @param map properties for schema generation; these may
* also contain provider-specific properties. The
* value of these properties override any values that
* may have been configured elsewhere.
* @return true if schema was generated, otherwise false
* @throws PersistenceException if insufficient or inconsistent
* configuration information is provided or if schema
* generation otherwise fails
*
* @since Java Persistence 2.1
*/
public boolean generateSchema(String persistenceUnitName, Map map);
/**
* Return the utility interface implemented by the persistence
* provider.
* @return ProviderUtil interface
*
* @since Java Persistence 2.0
*/
public ProviderUtil getProviderUtil();
}