public class UniqueWithDuplicateNullsExternalSortFactory extends ExternalSortFactory
Modifier and Type | Field and Description |
---|---|
private static java.lang.String |
IMPLEMENTATIONID |
DEFAULT_MAX_MERGE_RUN, DEFAULT_MEM_USE
MODULE
Constructor and Description |
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UniqueWithDuplicateNullsExternalSortFactory() |
Modifier and Type | Method and Description |
---|---|
protected MergeSort |
getMergeSort()
Returns merge sort implementation.
|
java.lang.String |
primaryImplementationType()
Return the primary implementation type for this access method.
|
boolean |
supportsImplementation(java.lang.String implementationId)
Return whether this access method implements the implementation
type given in the argument string.
|
boot, canSupport, close, createSort, defaultProperties, getSortCost, openSortCostController, primaryFormat, stop, supportsFormat
private static final java.lang.String IMPLEMENTATIONID
public UniqueWithDuplicateNullsExternalSortFactory()
protected MergeSort getMergeSort()
ExternalSortFactory
getMergeSort
in class ExternalSortFactory
public java.lang.String primaryImplementationType()
MethodFactory
primaryImplementationType
in interface MethodFactory
primaryImplementationType
in class ExternalSortFactory
MethodFactory.primaryImplementationType()
public boolean supportsImplementation(java.lang.String implementationId)
MethodFactory
supportsImplementation
in interface MethodFactory
supportsImplementation
in class ExternalSortFactory
MethodFactory.supportsImplementation(java.lang.String)
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