Interface ReplicationPolicy

  • All Known Implementing Classes:
    ReplicationPolicy.Default

    public interface ReplicationPolicy
    Policy to select one or more of the physical databases referred as slice in which a given persistent instance will be persisted. This interface is invoked for entity types that are specified as ReplicatedTypes in the configuration.
    Author:
    Pinaki Poddar
    See Also:
    DistributionPolicy
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static class  ReplicationPolicy.Default
      Implements a default replication policy to replicate the given instance across all available slices.
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.lang.String[] replicate​(java.lang.Object pc, java.util.List<java.lang.String> slices, java.lang.Object context)
      Gets the name of the slices where a given instance will be replicated.
    • Method Detail

      • replicate

        java.lang.String[] replicate​(java.lang.Object pc,
                                     java.util.List<java.lang.String> slices,
                                     java.lang.Object context)
        Gets the name of the slices where a given instance will be replicated.
        Parameters:
        pc - The newly persistent or to-be-merged object.
        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()