org.apache.derby.iapi.store.access
Interface SortController

All Known Implementing Classes:

MergeInserter

public interface SortController

A sort controller is an interface for inserting rows into a sort.

A sort is created with the createSort method of TransactionController. The rows are read back with a scan controller returned from the openSortScan method of TranscationController.

See Also:

TransactionController.openSort(long), ScanController

Method Summary

void	completedInserts() Inform SortController that all the rows have been inserted into it.
SortInfo	getSortInfo() Return SortInfo object which contains information about the current state of the sort.
void	insert(DataValueDescriptor[] row) Insert a row into the sort.

Method Detail

completedInserts

void completedInserts()

Inform SortController that all the rows have been inserted into it.

insert

void insert(DataValueDescriptor[] row)
            throws StandardException

Insert a row into the sort.

Parameters:

row - The row to insert into the SortController. The stored representations of the row's columns are copied into a new row somewhere in the sort.

Throws:

StandardException - Standard exception policy.

getSortInfo

SortInfo getSortInfo()
                     throws StandardException

Return SortInfo object which contains information about the current state of the sort.

Returns:

The SortInfo object which contains info about current sort.

Throws:

StandardException - Standard exception policy.

See Also:

SortInfo