Annotation Type RoundRobinPartitioning
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@Target({TYPE,METHOD,FIELD}) @Retention(RUNTIME) public @interface RoundRobinPartitioningRoundRobinPartitioning sends requests in a round robin fashion to the set of connection pools. It is for load-balancing read queries across a cluster of database machines. It requires that the full database be replicated on each machine, so does not support partitioning. The data should either be read-only, or writes should be replicated on the database.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,RoundRobinPartitioningPolicy- Author:
- James Sutherland
- Since:
- EclipseLink 2.2
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Required Element Summary
Required Elements Modifier and Type Required Element Description java.lang.StringnameThe name of the partition policy, names must be unique for the persistence unit.
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Optional Element Summary
Optional Elements Modifier and Type Optional Element Description java.lang.String[]connectionPoolsList of connection pool names to load balance across.booleanreplicateWritesThis allows for a set of database to be written to and kept in synch, and have reads load-balanced across the databases.
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