org.apache.derby.iapi.sql.execute
Interface ResultSetStatisticsFactory

All Known Implementing Classes:

RealResultSetStatisticsFactory

public interface ResultSetStatisticsFactory

ResultSetStatisticsFactory provides a wrapper around all of the result sets statistics objects needed in building the run time statistics.

Author:

jerry

Field Summary

static java.lang.String

MODULE Module name for the monitor's module locating system.

Method Summary

ResultSetStatistics	getNoRowsResultSetStatistics(ResultSet rs)
ResultSetStatistics	getResultSetStatistics(NoPutResultSet rs)
ResultSetStatistics	getResultSetStatistics(ResultSet rs) Get the matching ResultSetStatistics for the specified ResultSet.
RunTimeStatistics	getRunTimeStatistics(Activation activation, ResultSet rs, NoPutResultSet[] subqueryTrackingArray) RunTimeStatistics creation.

Field Detail

MODULE

public static final java.lang.String MODULE

Module name for the monitor's module locating system.

See Also:

Constant Field Values

Method Detail

getRunTimeStatistics

public RunTimeStatistics getRunTimeStatistics(Activation activation,
                                              ResultSet rs,
                                              NoPutResultSet[] subqueryTrackingArray)
                                       throws StandardException

RunTimeStatistics creation.

Parameters:

activation - The Activation we are generating the statistics for

rs - The top ResultSet for the ResultSet tree

subqueryTrackingArray - Array of subqueries, used for finding materialized subqueries.

Throws:

StandardException - on error

getResultSetStatistics

public ResultSetStatistics getResultSetStatistics(ResultSet rs)

Get the matching ResultSetStatistics for the specified ResultSet.

getResultSetStatistics

public ResultSetStatistics getResultSetStatistics(NoPutResultSet rs)

getNoRowsResultSetStatistics

public ResultSetStatistics getNoRowsResultSetStatistics(ResultSet rs)