Example usage for org.springframework.orm.jpa.persistenceunit PersistenceUnitManager obtainPersistenceUnitInfo

Introduction

In this page you can find the example usage for org.springframework.orm.jpa.persistenceunit PersistenceUnitManager obtainPersistenceUnitInfo.

Prototype

PersistenceUnitInfo obtainPersistenceUnitInfo(String persistenceUnitName)
        throws IllegalArgumentException, IllegalStateException;

Source Link

Document

Obtain the specified PersistenceUnitInfo from this manager.

Usage

From source file:com.brienwheeler.apps.schematool.SchemaToolBean.java

private Configuration determineHibernateConfiguration()
        throws MappingException, ClassNotFoundException, IOException {
    // Read in the bean definitions but don't go creating all the singletons,
    // because that causes creation of data sources and connections to database, etc.
    NonInitializingClassPathXmlApplicationContext context = new NonInitializingClassPathXmlApplicationContext(
            new String[] { emfContextLocation });
    try {/*from  ww w  .j  a v a  2s  . com*/
        context.loadBeanDefinitions();

        // Get well-known EntityManagerFactory bean definition by name
        BeanDefinition emfBeanDef = context.getBeanDefinition(emfContextBeanName);
        if (emfBeanDef == null) {
            throw new RuntimeException("no bean defined: " + emfContextBeanName);
        }

        // Get the name of the persistence unit for this EntityManagerFactory
        PropertyValue puNameProperty = emfBeanDef.getPropertyValues().getPropertyValue("persistenceUnitName");
        if (puNameProperty == null || !(puNameProperty.getValue() instanceof TypedStringValue)) {
            throw new RuntimeException(
                    "no property 'persistenceUnitName' defined on bean: " + emfContextBeanName);
        }
        String puName = ((TypedStringValue) puNameProperty.getValue()).getValue();

        // Get the name of the persistence unit for this EntityManagerFactory
        PropertyValue pumProperty = emfBeanDef.getPropertyValues().getPropertyValue("persistenceUnitManager");
        PersistenceUnitManager pum = null;
        if (pumProperty != null) {
            pum = createConfiguredPum(context, pumProperty);
        } else {
            pum = simulateDefaultPum(context, emfBeanDef);
        }

        // create the Hibernate configuration
        PersistenceUnitInfo pui = pum.obtainPersistenceUnitInfo(puName);
        Configuration configuration = new Configuration();
        configuration.setProperties(pui.getProperties());
        for (String className : pui.getManagedClassNames()) {
            configuration.addAnnotatedClass(Class.forName(className));
        }

        return configuration;
    } finally {
        context.close();
    }
}

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