/*
* Copyright 2002-2008 the original author or authors.
*
* Licensed 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.springframework.orm.jpa.vendor;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import javax.persistence.EntityManager;
import javax.persistence.spi.PersistenceProvider;
import org.eclipse.persistence.config.PersistenceUnitProperties;
import org.eclipse.persistence.config.TargetDatabase;
import org.eclipse.persistence.jpa.JpaEntityManager;
import org.springframework.orm.jpa.JpaDialect;
/**
* {@link org.springframework.orm.jpa.JpaVendorAdapter} implementation for Eclipse
* Persistence Services (EclipseLink). Developed and tested against EclipseLink 1.0.
*
* <p>Exposes EclipseLink's persistence provider and EntityManager extension interface,
* and supports {@link AbstractJpaVendorAdapter}'s common configuration settings.
*
* <p>This class is very analogous to {@link TopLinkJpaVendorAdapter}, since
* EclipseLink is effectively the next generation of the TopLink product.
* Thanks to Mike Keith for the original EclipseLink support prototype!
*
* <p>NOTE: No need to filter out classes from the JPA providers package for
* EclipseLink (see SPR-6040)
*
* @author Juergen Hoeller
* @author Thomas Risberg
* @since 2.5.2
* @see org.eclipse.persistence.jpa.PersistenceProvider
* @see org.eclipse.persistence.jpa.JpaEntityManager
*/
public class EclipseLinkJpaVendorAdapter extends AbstractJpaVendorAdapter {
private final PersistenceProvider persistenceProvider = new org.eclipse.persistence.jpa.PersistenceProvider();
private final JpaDialect jpaDialect = new EclipseLinkJpaDialect();
public PersistenceProvider getPersistenceProvider() {
return this.persistenceProvider;
}
@Override
public Map<String, Object> getJpaPropertyMap() {
Map<String, Object> jpaProperties = new HashMap<String, Object>();
if (getDatabasePlatform() != null) {
jpaProperties.put(PersistenceUnitProperties.TARGET_DATABASE, getDatabasePlatform());
}
else if (getDatabase() != null) {
String targetDatabase = determineTargetDatabaseName(getDatabase());
if (targetDatabase != null) {
jpaProperties.put(PersistenceUnitProperties.TARGET_DATABASE, targetDatabase);
}
}
if (isGenerateDdl()) {
jpaProperties.put(PersistenceUnitProperties.DDL_GENERATION,
PersistenceUnitProperties.CREATE_ONLY);
jpaProperties.put(PersistenceUnitProperties.DDL_GENERATION_MODE,
PersistenceUnitProperties.DDL_DATABASE_GENERATION);
}
if (isShowSql()) {
jpaProperties.put(PersistenceUnitProperties.LOGGING_LEVEL, Level.FINE.toString());
}
return jpaProperties;
}
/**
* Determine the EclipseLink target database name for the given database.
* @param database the specified database
* @return the EclipseLink target database name, or <code>null<code> if none found
*/
protected String determineTargetDatabaseName(Database database) {
switch (database) {
case DB2: return TargetDatabase.DB2;
case DERBY: return TargetDatabase.Derby;
case HSQL: return TargetDatabase.HSQL;
case INFORMIX: return TargetDatabase.Informix;
case MYSQL: return TargetDatabase.MySQL4;
case ORACLE: return TargetDatabase.Oracle;
case POSTGRESQL: return TargetDatabase.PostgreSQL;
case SQL_SERVER: return TargetDatabase.SQLServer;
case SYBASE: return TargetDatabase.Sybase;
default: return null;
}
}
@Override
public JpaDialect getJpaDialect() {
return this.jpaDialect;
}
@Override
public Class<? extends EntityManager> getEntityManagerInterface() {
return JpaEntityManager.class;
}
}
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