javax.persistence.spi
Class PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver

java.lang.Object
  javax.persistence.spi.PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver

All Implemented Interfaces:

PersistenceProviderResolver

Enclosing class:

PersistenceProviderResolverHolder

public static class PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver
extends java.lang.Object
implements PersistenceProviderResolver

Default provider resolver class to use when none is explicitly set. Uses the META-INF/services approach as described in the Java Persistence specification. A getResources() call is made on the current context classloader to find the service provider files on the classpath. Any service files found are then read to obtain the classes that implement the persistence provider interface.

Field Summary

static java.lang.String	PERSISTENCE_PROVIDER
static java.lang.String	SERVICE_PROVIDER_FILE

Constructor Summary

PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver()

Method Summary

java.util.List<PersistenceProvider>

getPersistenceProviders() Returns a list of PersistenceProvider implementations available in the runtime environment.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PERSISTENCE_PROVIDER

public static final java.lang.String PERSISTENCE_PROVIDER

See Also:

Constant Field Values

SERVICE_PROVIDER_FILE

public static final java.lang.String SERVICE_PROVIDER_FILE

See Also:

Constant Field Values

Constructor Detail

PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver

public PersistenceProviderResolverHolder.DefaultPersistenceProviderResolver()

Method Detail

getPersistenceProviders

public java.util.List<PersistenceProvider> getPersistenceProviders()

Description copied from interface: PersistenceProviderResolver

Returns a list of PersistenceProvider implementations available in the runtime environment.

Specified by:

getPersistenceProviders in interface PersistenceProviderResolver

Returns:

list of persistence providers available in the environment