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Spring Framework example source code file (OpenJpaVendorAdapter.java)

This example Spring Framework source code file (OpenJpaVendorAdapter.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

class, class, defaultlevel=warn, entitymanagerfactory, openjpadialect, openjpadialect, persistenceprovider, properties, properties, runtime=info, sql=trace, sql_server, string, string, util

The Spring Framework OpenJpaVendorAdapter.java source code

/*
 * 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.Map;
import java.util.Properties;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.PersistenceProvider;

import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI;
import org.apache.openjpa.persistence.OpenJPAEntityManagerSPI;
import org.apache.openjpa.persistence.PersistenceProviderImpl;

import org.springframework.orm.jpa.JpaDialect;

/**
 * {@link org.springframework.orm.jpa.JpaVendorAdapter} implementation for
 * Apache OpenJPA. Developed and tested against OpenJPA 1.0.0.
 *
 * <p>Exposes OpenJPA's persistence provider and EntityManager extension interface,
 * and supports {@link AbstractJpaVendorAdapter}'s common configuration settings.
 *
 * @author Costin Leau
 * @author Juergen Hoeller
 * @since 2.0
 * @see org.apache.openjpa.persistence.PersistenceProviderImpl
 * @see org.apache.openjpa.persistence.OpenJPAEntityManager
 */
public class OpenJpaVendorAdapter extends AbstractJpaVendorAdapter {

	private final PersistenceProvider persistenceProvider = new PersistenceProviderImpl();

	private final OpenJpaDialect jpaDialect = new OpenJpaDialect();


	public PersistenceProvider getPersistenceProvider() {
		return this.persistenceProvider;
	}

	public String getPersistenceProviderRootPackage() {
		return "org.apache.openjpa";
	}

	public Map getJpaPropertyMap() {
		Properties jpaProperties = new Properties();

		if (getDatabasePlatform() != null) {
			jpaProperties.setProperty("openjpa.jdbc.DBDictionary", getDatabasePlatform());
		}
		else if (getDatabase() != null) {
			String databaseDictonary = determineDatabaseDictionary(getDatabase());
			if (databaseDictonary != null) {
				jpaProperties.setProperty("openjpa.jdbc.DBDictionary", databaseDictonary);
			}
		}

		if (isGenerateDdl()) {
			jpaProperties.setProperty("openjpa.jdbc.SynchronizeMappings", "buildSchema(ForeignKeys=true)");
		}

		if (isShowSql()) {
			// Taken from the OpenJPA 0.9.6 docs ("Standard OpenJPA Log Configuration + All SQL Statements")
			jpaProperties.setProperty("openjpa.Log", "DefaultLevel=WARN, Runtime=INFO, Tool=INFO, SQL=TRACE");
		}

		return jpaProperties;
	}

	/**
	 * Determine the OpenJPA database dictionary name for the given database.
	 * @param database the specified database
	 * @return the OpenJPA database dictionary name, or <code>null if none found
	 */
	protected String determineDatabaseDictionary(Database database) {
		switch (database) {
			case DB2: return "db2";
			case HSQL: return "hsql(SimulateLocking=true)";
			case INFORMIX: return "informix";
			case MYSQL: return "mysql";
			case ORACLE: return "oracle";
			case POSTGRESQL: return "postgres";
			case SQL_SERVER: return "sqlserver";
			case SYBASE: return "sybase";
			default: return null;
		}
	}

	public JpaDialect getJpaDialect() {
		return this.jpaDialect;
	}

	public Class<? extends EntityManagerFactory> getEntityManagerFactoryInterface() {
		return OpenJPAEntityManagerFactorySPI.class;
	}

	public Class<? extends EntityManager> getEntityManagerInterface() {
		return OpenJPAEntityManagerSPI.class;
	}

}

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