List<Type> buildTypes = ImmutableList.<Type>of(VARCHAR, BIGINT, BIGINT);
Operator buildOperator = new ValuesOperator(operatorContext, buildTypes, rowPagesBuilder(buildTypes)
.addSequencePage(10, 20, 30, 40)
.build());
HashBuilderOperatorFactory hashBuilderOperatorFactory = new HashBuilderOperatorFactory(1, buildOperator.getTypes(), Ints.asList(0), 100);
Operator sourceHashProvider = hashBuilderOperatorFactory.createOperator(driverContext);
Driver driver = new Driver(driverContext, buildOperator, sourceHashProvider);
while (!driver.isFinished()) {
driver.process();
}