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Oracle Fusion Middleware Java API Reference for Oracle TopLink 11g Release 1 (11.1.1) E28847-01 |
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@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface UnionPartitioning
UnionPartitioning sends queries to all connection pools and unions the results. This is for queries or relationships that span partitions when partitioning is used, such as on a ManyToMany cross partition relationship.
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.
Partitioned
, UnionPartitioningPolicy
Required Element Summary | |
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java.lang.String |
name The name of the partition policy, names must be unique for the persistence unit. |
Optional Element Summary | |
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java.lang.String[] |
connectionPools List of connection pool names to load balance across. |
boolean |
replicateWrites Defines if write queries should be replicated. |
Element Detail |
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public abstract java.lang.String name
public abstract java.lang.String[] connectionPools
public abstract boolean replicateWrites
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