javax.persistence
Class Persistence.DefaultProviderResolver

java.lang.Object
  javax.persistence.Persistence.DefaultProviderResolver

All Implemented Interfaces:

Persistence.ProviderResolver

Enclosing class:

Persistence

public static class Persistence.DefaultProviderResolver
extends java.lang.Object
implements Persistence.ProviderResolver

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

Persistence.DefaultProviderResolver()

Method Summary

java.util.Collection<PersistenceProvider>

findAllProviders()

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

Persistence.DefaultProviderResolver

public Persistence.DefaultProviderResolver()

Method Detail

findAllProviders

public java.util.Collection<PersistenceProvider> findAllProviders()
                                                           throws java.io.IOException

Specified by:

findAllProviders in interface Persistence.ProviderResolver

Throws:

java.io.IOException