br.com.shopcarpet.config.JpaConfig.java Source code

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Here is the source code for br.com.shopcarpet.config.JpaConfig.java

Source

/*
 * shopcarpet 1.0 10 de jan de 2017
 *
 * Copyright (c) 2016, hyperCLASS. All rights reserved. hyperCLASS
 * proprietary/confidential. Use is subject to license terms.
 */
package br.com.shopcarpet.config;

import javax.sql.DataSource;

import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor;
import org.springframework.orm.jpa.vendor.Database;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;

/**
 * A <code>JpaConfig</code> contem a configuracao dos bean do Jpa e de acesso ao
 * banco de dados.
 * 
 * @author Joo Batista
 * @version 1.0 10 de jan de 2017
 */
@Configuration
public class JpaConfig {

    /**
     * Este bean criado controla a conexao com banco de dados, dialeto.
     * Este bean esta associado a contexto do Spring, ou seja
     * todas sessoes sero controlados pelo spring.
     * */
    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(final DataSource dataSource,
            final JpaVendorAdapter jpaVendorAdapter) {
        final LocalContainerEntityManagerFactoryBean emfb = new LocalContainerEntityManagerFactoryBean();
        emfb.setDataSource(dataSource);
        emfb.setJpaVendorAdapter(jpaVendorAdapter);
        emfb.setPackagesToScan("br.com.shopcarpet.domain");
        return emfb;
    }

    /**
     * Configuracao opcao do hibernate como o dialeto.
     * */
    @Bean
    public JpaVendorAdapter getJpaVendorAdapter() {
        HibernateJpaVendorAdapter adapter = new HibernateJpaVendorAdapter();
        adapter.setDatabase(Database.MYSQL);
        adapter.setShowSql(true);
        adapter.setGenerateDdl(true);
        adapter.setDatabasePlatform("org.hibernate.dialect.MySQL5Dialect");
        return adapter;
    }

    /**
     * O Bean persistenceTranslation e um bean declarado para adicionar
     * exception de transacao, convertendo assim em exececoes genericas,
     * independente do banco de dados.
     */
    @Bean
    public BeanPostProcessor persistenceTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    /**
     * A metodo dataSource retorna a conexao do banco de dados.
     */
    @Bean
    public DataSource getDataSource() {
        final BasicDataSource ds = new BasicDataSource();
        ds.setDriverClassName("com.mysql.jdbc.Driver");
        ds.setUrl("jdbc:mysql://localhost/carpet");
        ds.setUsername("carpet");
        ds.setPassword("carpet123");
        return ds;
    }

    @Bean
    public PersistenceAnnotationBeanPostProcessor paPostProcessor() {
        return new PersistenceAnnotationBeanPostProcessor();
    }

    /**
     * Configura a transacao do banco de dados. Por default o Spring Data
     * precisa desse bean para executar operacoes basicas no banco de dados.
     * */
    @Bean
    public JpaTransactionManager transactionManager() {
        return new JpaTransactionManager(); // does this need an emf???
    }
}