```
public class PersistenceProviderResolverHolder
extends java.lang.Object
```
Holds the global PersistenceProviderResolver instance. If no PersistenceProviderResolver is set by the environment, the default PersistenceProviderResolver is used. Implementations must be thread-safe.

Nested Classes
Modifier and Type	Class	Description
`private static class`	`PersistenceProviderResolverHolder.PersistenceProviderResolverPerClassLoader`	Cache PersistenceProviderResolver per classloader and use the current classloader as a key.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static PersistenceProviderResolver`	`getPersistenceProviderResolver()`	Returns the current persistence provider resolver
`static void`	`setPersistenceProviderResolver(PersistenceProviderResolver resolver)`	Defines the persistence provider resolver used.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Modifier and Type	Field	Description
`private static PersistenceProviderResolver`	`DEFAULT_RESOLVER`
`private static PersistenceProviderResolver`	`RESOLVER`

Class PersistenceProviderResolverHolder