org.cambillaum.jpapersistor.persistence.configuration.PersistenceConfiguration.java Source code

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Here is the source code for org.cambillaum.jpapersistor.persistence.configuration.PersistenceConfiguration.java

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/*
 * Copyright (C) 2012 Mathieu Cambillau <cambillaum@gmail.com>
 *
 * 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 org.cambillaum.jpapersistor.persistence.configuration;

import java.util.Properties;
import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.jpa.JpaDialect;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.support.SharedEntityManagerBean;
import org.springframework.orm.jpa.vendor.HibernateJpaDialect;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 *
 * @author Mathieu Cambillau <cambillaum@gmail.com>
 */
@Configuration
@EnableTransactionManagement
@ComponentScan(basePackages = { "org.cambillaum.jpapersistor" })
public class PersistenceConfiguration {

    @Bean
    public BasicDataSource dataSource() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName("org.hsqldb.jdbcDriver");
        dataSource.setUrl("jdbc:hsqldb:mem:testdb");
        dataSource.setUsername("sa");
        dataSource.setPassword("");
        dataSource.setInitialSize(0);
        dataSource.setMaxActive(15);
        dataSource.setMaxIdle(0);
        dataSource.setMinEvictableIdleTimeMillis(60000);
        return dataSource;
    }

    @Bean
    public HibernateJpaVendorAdapter jpaVendorAdapter() {
        HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
        jpaVendorAdapter.setShowSql(true);
        return jpaVendorAdapter;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactory.setDataSource(dataSource());
        Properties jpaProperties = new Properties();
        jpaProperties.put("hibernate.show.sql", "true");
        jpaProperties.put("hibernate.hbm2ddl.auto", "create-drop");
        entityManagerFactory.setJpaProperties(jpaProperties);
        entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter());
        JpaDialect jpaDialect = new HibernateJpaDialect();
        entityManagerFactory.setJpaDialect(jpaDialect);
        entityManagerFactory.setPackagesToScan("org.cambillaum.jpapersistor");
        return entityManagerFactory;
    }

    @Bean
    public SharedEntityManagerBean entityManager() {
        SharedEntityManagerBean entityManager = new SharedEntityManagerBean();
        entityManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return entityManager;
    }

    @Bean
    public JpaTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setDataSource(dataSource());
        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return transactionManager;
    }
}