Interface SortFactory

All Superinterfaces:

MethodFactory, ModuleSupportable

All Known Implementing Classes:

ExternalSortFactory, UniqueWithDuplicateNullsExternalSortFactory

public interface SortFactory
extends MethodFactory

The factory interface for all sort access methods.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MODULE	Used to identify this interface when finding it with the Monitor.

Method Summary

Modifier and Type	Method	Description
Sort	createSort(TransactionController tran, int segment, Properties implParameters, DataValueDescriptor[] template, ColumnOrdering[] columnOrdering, SortObserver sortObserver, boolean alreadyInOrder, long estimatedRows, int estimatedRowSize)	Create the sort and return a sort object for it.
SortCostController	openSortCostController()	Return an open SortCostController.

Methods inherited from interface MethodFactory

defaultProperties, primaryFormat, primaryImplementationType, supportsFormat, supportsImplementation

Methods inherited from interface ModuleSupportable

canSupport

Field Details

MODULE

static final String MODULE

Used to identify this interface when finding it with the Monitor.

See Also:

• Constant Field Values

Method Details

createSort

Sort createSort(TransactionController tran,
 int segment,
 Properties implParameters,
 DataValueDescriptor[] template,
 ColumnOrdering[] columnOrdering,
 SortObserver sortObserver,
 boolean alreadyInOrder,
 long estimatedRows,
 int estimatedRowSize)
         throws StandardException

Create the sort and return a sort object for it.

Throws:

StandardException - if the sort could not be opened for some reason, or if an error occurred in one of the lower level modules.

openSortCostController

SortCostController openSortCostController()
                                   throws StandardException

Return an open SortCostController.

Return an open SortCostController which can be used to ask about the estimated costs of SortController() operations.

Returns:

The open StoreCostController.

Throws:

StandardException - Standard exception policy.

See Also:

• StoreCostController