Class UniqueWithDuplicateNullsExternalSortFactory

java.lang.Object
org.apache.derby.impl.store.access.sort.ExternalSortFactory
org.apache.derby.impl.store.access.sort.UniqueWithDuplicateNullsExternalSortFactory
All Implemented Interfaces:
ModuleControl, ModuleSupportable, MethodFactory, SortFactory, SortCostController

public class UniqueWithDuplicateNullsExternalSortFactory extends ExternalSortFactory
Method factory to support sorting of Almost unique index. This class overrides getMergeSort of ExternalSortFactory to return UniqueWithDuplicateNullsMergeSort.