Package org.eclipse.persistence.annotations

Annotation Type Partitioning

  • @Target({TYPE,METHOD,FIELD})
@Retention(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.

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

    • Required Element Summary

      Required Elements 
      Modifier and Type Required Element Description
      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

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

      • partitioningClass

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