org.apache.derbyTesting.perf.clients

Interface Client

All Known Implementing Classes:

BankTransactionClient, GroupByClient, IndexJoinClient, SequenceGeneratorConcurrency.SGClient, SingleRecordSelectClient, SingleRecordUpdateClient

public interface Client

Interface that must be implemented by performance clients. The implementations of this interface normally perform a single operation, and the selected implementation of LoadGenerator repeatedly invokes this operation in order to get the desired distribution.

Method Summary

Modifier and Type	Method and Description
void	doWork() Perform the work for a single iteration of the test (typically a single transaction).
void	init(java.sql.Connection c) Initialize this client (typically prepare the statements needed in the doWork() method).
void	printReport(java.io.PrintStream out) Print a report from the test run.

Method Detail

init

void init(java.sql.Connection c)
   throws java.sql.SQLException

Initialize this client (typically prepare the statements needed in the doWork() method).

Parameters:

c - a connection which can be used by this client

Throws:

java.sql.SQLException - if a database error occurs

doWork

void doWork()
     throws java.sql.SQLException

Perform the work for a single iteration of the test (typically a single transaction).

Throws:

java.sql.SQLException - if a database error occurs

printReport

void printReport(java.io.PrintStream out)

Print a report from the test run.

Parameters:

out - stream to print the report to