org.apache.flink.runtime.operators

Interface ResettableDriver<S extends org.apache.flink.api.common.functions.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:

Driver<S,OT>

All Known Implementing Classes:

AbstractCachedBuildSideJoinDriver, BuildFirstCachedJoinDriver, BuildSecondCachedJoinDriver, CoGroupWithSolutionSetFirstDriver, CoGroupWithSolutionSetSecondDriver, JoinWithSolutionSetFirstDriver, JoinWithSolutionSetSecondDriver

public interface ResettableDriver<S extends org.apache.flink.api.common.functions.Function,OT>
extends Driver<S,OT>

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

See Also:

Driver, TaskContext

Method Summary

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.Driver

cancel, cleanup, getNumberOfDriverComparators, getNumberOfInputs, getStubType, prepare, 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