org.apache.flink.runtime.operators

Interface ResettablePactDriver<S extends Function,OT>

Type Parameters:

S - The type of stub driven by this driver.

OT - The data type of the records produced by this driver.

All Superinterfaces:

PactDriver<S,OT>

All Known Implementing Classes:

AbstractCachedBuildSideMatchDriver, BuildFirstCachedMatchDriver, BuildSecondCachedMatchDriver, CoGroupWithSolutionSetFirstDriver, CoGroupWithSolutionSetSecondDriver, JoinWithSolutionSetFirstDriver, JoinWithSolutionSetSecondDriver

public interface ResettablePactDriver<S extends Function,OT>
extends PactDriver<S,OT>

This interface marks a PactDriver as resettable, meaning that will reset part of their internal state but otherwise reuse existing data structures.

See Also:

PactDriver, PactTaskContext

Method Summary

Methods

Modifier and Type	Method and Description
void	initialize()
boolean	isInputResettable(int inputNum)
void	reset()
void	teardown()

Methods inherited from interface org.apache.flink.runtime.operators.PactDriver

cancel, cleanup, getNumberOfInputs, getStubType, prepare, requiresComparatorOnInput, run, setup

Method Detail

isInputResettable

boolean isInputResettable(int inputNum)

initialize

void initialize()
                throws Exception

Throws:

Exception

reset

void reset()
           throws Exception

Throws:

Exception

teardown

void teardown()
              throws Exception

Throws:

Exception