org.apache.openjpa.slice
Interface FinderTargetPolicy

public interface FinderTargetPolicy

Policy to select one or more of the physical databases referred as slice in which a given finder will be executed.

Author:

Pinaki Poddar

See Also:

DistributionPolicy

Method Summary

String[]

getTargets(Class<?> cls, Object oid, List<String> slices, Object context) Gets the name of the slices where a given finder will be executed.

Method Detail

getTargets

String[] getTargets(Class<?> cls,
                    Object oid,
                    List<String> slices,
                    Object context)

Gets the name of the slices where a given finder will be executed.

Parameters:

cls - The class of the finder.

oid - the primary key for the finder

slices - list of names of the active slices. The ordering of the list is either explicit openjpa.slice.Names property or implicit i.e. alphabetic order of available identifiers if openjpa.slice.Names is unspecified.

context - generic persistence context managing the given instance.

Returns:

identifier of the slices. This names must match one of the given slice names.

See Also:

DistributedConfiguration.getActiveSliceNames()