How can I get the org.hibernate.cfg.Configuration in Play Framework 2 using the JPA plugin

I can get the JPA Config like this:

Configuration jpaConf = Configuration.root().getConfig("jpa");

But how can I get the org.hibernate.cfg.Configuration which I need to do a Schema Export like in this Question (base on Play Framework 1): Using SchemaExport in Play Framework

My Play Framework 2.x application.conf has this:

# Database configuration # ~~~~~ db.default.driver=org.postgresql.Driver db.default.url="jdbc:postgresql://localhost:5432/dpma" db.default.user=bp db.default.jndiName=DefaultDS jpa.default=defaultPersistenceUnit

my persistence.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> <persistence-unit name="defaultPersistenceUnit" transaction-type="RESOURCE_LOCAL"> <non-jta-data-source>DefaultDS</non-jta-data-source> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL9Dialect"/> <property name="hibernate.hbm2ddl.auto" value="update"/> <property name="hibernate.show_sql" value="true"/> <property name="hibernate.format_sql" value="true"/> <property name="hibernate.use_sql_comments" value="true"/> <!--<property name="hibernate.default_schema" value="&quot;legalEntitiesTest&quot;"/>--> <property name="hibernate.globally_quoted_identifiers" value="false"/> </properties> </persistence-unit> </persistence>

**For those unfamiliar with Play Framework: ** https://playframework.com/documentation/2.2.4/JavaJPA


You can create hibernate configuration object yourself, using hibernate configuration file:

Configuration c = new Configuration(); c.configure("path to hibernate config").getProperty("hibernate property");

If you do not use hibernate cfg file, you can instead add JPA entities to configuration this way (<strong>it assums all your JPA classes belong to one package</strong>):

final Configuration configuration = new Configuration(); final Reflections reflections = new Reflections(EntityClass.class.getPackage().getName()); final Set<Class<?>> classes = reflections.getTypesAnnotatedWith(Entity.class); for (final Class<?> clazz : classes) { configuration.addAnnotatedClass(clazz); }

Before you execute schema export, remember to set dialect:

configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQL9Dialect");


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