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Oracle Fusion Middleware Java API Reference for Oracle TopLink
11g Release 1 (11.1.1)

E28847-01


org.eclipse.persistence.annotations
Annotation Type Partitioning


@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface Partitioning

A Partitioning is used to partition the data for a class across multiple difference databases or across a database cluster such as Oracle RAC. Partitioning can provide improved scalability by allowing multiple database machines to service requests. This annotation configures a custom PartitioningPolicy.

If multiple partitions are used to process a single transaction, JTA should be used for proper XA transaction support.

Partitioning can be enabled on an Entity, relationship, query, or session/persistence unit. Partition policies are globally named to allow reuse, the partitioning policy must also be set using the @Partitioned annotation to be used.

Since:
EclipseLink 2.2
Author:
James Sutherland
See Also:
Partitioned, PartitioningPolicy

Required Element Summary
 java.lang.String name
          The name of the partition policy, names must be unique for the persistence unit.
 java.lang.Class<? extends PartitioningPolicy> partitioningClass
          (Required) Full package.class name of a subclass of PartitioningPolicy.

 

Element Detail

name

public abstract java.lang.String name
The name of the partition policy, names must be unique for the persistence unit.

partitioningClass

public abstract java.lang.Class<? extends PartitioningPolicy> partitioningClass
(Required) Full package.class name of a subclass of PartitioningPolicy.

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