JpaConfig.java

package com.gffny.ldrbrd.config;

import java.util.Properties;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
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 org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.TransactionManagementConfigurer;

import com.gffny.ldrbrd.Application;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackageClasses = Application.class)
public class JpaConfig implements TransactionManagementConfigurer {

	@Value("${dataSource.driverClassName}")
	private String driver;
	@Value("${dataSource.url}")
	private String url;
	@Value("${dataSource.username}")
	private String username;
	@Value("${dataSource.password}")
	private String password;
	@Value("${hibernate.dialect}")
	private String dialect;
	@Value("${hibernate.hbm2ddl.auto}")
	private String hbm2ddlAuto;

	@Bean
	public DataSource configureDataSource() {
		DriverManagerDataSource dataSource = new DriverManagerDataSource();
		dataSource.setDriverClassName(driver);
		dataSource.setUrl(url);
		dataSource.setUsername(username);
		dataSource.setPassword(password);
		return dataSource;
	}

	@Bean
	public LocalContainerEntityManagerFactoryBean configureEntityManagerFactory() {
		LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
		entityManagerFactoryBean.setDataSource(configureDataSource());
		entityManagerFactoryBean.setPackagesToScan("com.gffny.ldrbrd");
		entityManagerFactoryBean
				.setJpaVendorAdapter(new HibernateJpaVendorAdapter());

		Properties jpaProperties = new Properties();
		jpaProperties.put(org.hibernate.cfg.Environment.DIALECT, dialect);
		jpaProperties.put(org.hibernate.cfg.Environment.HBM2DDL_AUTO,
				hbm2ddlAuto);
		entityManagerFactoryBean.setJpaProperties(jpaProperties);

		return entityManagerFactoryBean;
	}

	@Bean
	public PlatformTransactionManager annotationDrivenTransactionManager() {
		return new JpaTransactionManager();
	}
}