package com.gordondickens.enterprisespring.infrastructure.config.db;
import com.gordondickens.enterprisespring.domain.ItemEntity;
import org.hibernate.dialect.Dialect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Properties;
@Configuration
public abstract class JpaPersistenceCommonConfig {
private static final Logger logger = LoggerFactory.getLogger(JpaPersistenceCommonConfig.class);
/*
* ********************************
* PUBLIC METHODS ARE @BEANS
* PUBLIC METHODS ARE @BEANS
* PUBLIC METHODS ARE @BEANS
* PUBLIC METHODS ARE @BEANS
* PUBLIC METHODS ARE @BEANS
* PUBLIC METHODS ARE @BEANS
*
* Method Name is the BEAN ID (without the parenthesis)
* Return Type is the Bean type
* ********************************
*/
@Bean
public abstract DataSource dataSource();
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
logger.debug("\n\n************ {} ************\n\n",
getDatabaseDialect().getCanonicalName());
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setDatabasePlatform(getDatabaseDialect().getName());
vendorAdapter.setShowSql(true);
LocalContainerEntityManagerFactoryBean factory =
new LocalContainerEntityManagerFactoryBean();
factory.setJpaVendorAdapter(vendorAdapter);
factory.setPackagesToScan(ItemEntity.class.getPackage().getName());
factory.setDataSource(dataSource());
if (getJpaProperties() != null) {
factory.setJpaProperties(getJpaProperties());
}
return factory;
}
@Bean
public EntityManager entityManger() {
return entityManagerFactory().getObject().createEntityManager();
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory().getObject());
return txManager;
}
/*
* ********************************
* PROTECTED METHODS ARE NOT BEANS
* PROTECTED METHODS ARE NOT BEANS
* PROTECTED METHODS ARE NOT BEANS
* PROTECTED METHODS ARE NOT BEANS
* PROTECTED METHODS ARE NOT BEANS
* PROTECTED METHODS ARE NOT BEANS
* ********************************
*/
protected abstract Class<? extends Dialect> getDatabaseDialect();
/**
* Override if configuring JPA Properties
* <p/>
*
* @return Jpa Properties to be used in Entity Manager Factory
*/
protected Properties getJpaProperties() {
return null;
}
}