1dependencies {
2  implementation ('org.eclipse.persistence:eclipselink:2.7.7')
3  implementation ('org.springframework.boot:spring-boot-starter-web')
4  implementation('org.springframework.boot:spring-boot-starter-actuator')
5  implementation('org.springframework.boot:spring-boot-starter-data-jpa'){
6    exclude group: 'org.hibernate', module: 'hibernate-core'
7    exclude group: 'org.hibernate.common', module: 'common-annotations'
8  }
9    //...Your project dependencies...
10}

1@Configuration
2@EnableTransactionManagement
3@EnableJpaRepositories("com.marcnuri.demo.springeclipselink.repository")
4public class CustomJpaConfiguration extends JpaBaseConfiguration {
5
6  protected CustomJpaConfiguration(DataSource dataSource, JpaProperties properties,
7    ObjectProvider<JtaTransactionManager> jtaTransactionManager) {
8    super(dataSource, properties, jtaTransactionManager);
9  }
10
11  @Override
12  protected AbstractJpaVendorAdapter createJpaVendorAdapter() {
13    return new EclipseLinkJpaVendorAdapter();
14  }
15
16  @Override
17  protected Map<String, Object> getVendorProperties() {
18    final Map<String, Object> ret = new HashMap<>();
19    ret.put(PersistenceUnitProperties.BATCH_WRITING, BatchWriting.JDBC);
20    return ret;
21  }
22
23  @Bean("entityManagerFactory")
24  public LocalContainerEntityManagerFactoryBean localContainerEntityManagerFactory(
25    EntityManagerFactoryBuilder builder, DataSource dataSource) {
26
27    return builder
28      .dataSource(dataSource)
29      .packages("com.marcnuri.demo.springeclipselink.repository")
30      .persistenceUnit("YourPersistenceUnitName")
31      .properties(initJpaProperties()).build();
32  }
33
34  @Bean
35  public static DataSource dataSource() {
36    final DriverManagerDataSource dataSource = new DriverManagerDataSource();
37    dataSource.setDriverClassName("org.h2.Driver");
38    dataSource.setUrl("jdbc:h2:mem:marcnuridemo;DB_CLOSE_DELAY=-1");
39    dataSource.setUsername("sa");
40    dataSource.setPassword("password");
41    return dataSource;
42  }
43
44  @Bean
45  public static PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
46    final JpaTransactionManager transactionManager = new JpaTransactionManager();
47    transactionManager.setEntityManagerFactory(emf);
48    return transactionManager;
49  }
50
51  @Bean
52  @Primary
53  public static JpaProperties properties() {
54    final JpaProperties jpaProperties = new JpaProperties();
55    jpaProperties.setShowSql(true);
56    jpaProperties.setDatabasePlatform("org.eclipse.persistence.platform.database.H2Platform");
57    return jpaProperties;
58  }
59
60  private static Map<String, ?> initJpaProperties() {
61    final Map<String, Object> ret = new HashMap<>();
62    // Add any JpaProperty you are interested in and is supported by your Database and JPA implementation
63    ret.put(PersistenceUnitProperties.BATCH_WRITING, BatchWriting.JDBC);
64    ret.put(PersistenceUnitProperties.LOGGING_LEVEL, SessionLog.FINEST_LABEL);
65    ret.put(PersistenceUnitProperties.WEAVING, "false");
66    ret.put(PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.CREATE_ONLY);
67    ret.put(PersistenceUnitProperties.DDL_GENERATION_MODE, PersistenceUnitProperties.DDL_DATABASE_GENERATION);
68    return ret;
69  }
70}

1@Bean
2public DataSource dataSource() {
3  //In classpath from spring-boot-starter-web
4  final Properties pool = new Properties();
5  pool.put("driverClassName", "org.postgresql.Driver");
6  pool.put("url", "jdbc:postgresql://example.com:5432/DatabaseName");
7  pool.put("username", "user");
8  pool.put("password", "password");
9  pool.put("minIdle", 1);
10  return new org.apache.tomcat.jdbc.pool.DataSourceFactory().createDataSource(pool);
11}