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Fix docs on creation of EntityManagerFactory #180

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Fix docs on creation of EntityManagerFactory #180

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7 changes: 3 additions & 4 deletions src/main/asciidoc/jpa.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ class ApplicationConfig {
}

@Bean
public EntityManagerFactory entityManagerFactory() {
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(true);
Expand All @@ -74,9 +74,7 @@ class ApplicationConfig {
factory.setJpaVendorAdapter(vendorAdapter);
factory.setPackagesToScan("com.acme.domain");
factory.setDataSource(dataSource());
factory.afterPropertiesSet();

return factory.getObject();
return factory;
}

@Bean
Expand All @@ -89,6 +87,7 @@ class ApplicationConfig {
}
----
====
NB: It's important to create `LocalContainerEntityManagerFactoryBean` and not `EntityManagerFactory` directly since the former also participates in exception translation mechanisms besides simply creating `EntityManagerFactory`.

The just shown configuration class sets up an embedded HSQL database using the `EmbeddedDatabaseBuilder` API of spring-jdbc. We then set up a `EntityManagerFactory` and use Hibernate as sample persistence provider. The last infrastructure component declared here is the `JpaTransactionManager`. We finally activate Spring Data JPA repositories using the `@EnableJpaRepositories` annotation which essentially carries the same attributes as the XML namespace does. If no base package is configured it will use the one the configuration class resides in.

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