org.apache.flink.runtime.jobmanager.splitassigner

Interface InputSplitAssigner

All Known Implementing Classes:

DefaultInputSplitAssigner, FileInputSplitAssigner, LocatableInputSplitAssigner

public interface InputSplitAssigner

The input split assigner interface must be implemented by every component which is supposed to dynamically offer input splits to the input vertices of a job at runtime.

Method Summary

Methods

Modifier and Type	Method and Description
InputSplit	getNextInputSplit(ExecutionVertex vertex) Returns the next input split that shall be consumed by the given input vertex.
void	registerGroupVertex(ExecutionGroupVertex groupVertex) Registers an input vertex with the input split assigner.
void	unregisterGroupVertex(ExecutionGroupVertex groupVertex) Unregisters an input vertex from the input split assigner.

Method Detail

registerGroupVertex

void registerGroupVertex(ExecutionGroupVertex groupVertex)

Registers an input vertex with the input split assigner.

Parameters:

groupVertex - the input vertex to register

unregisterGroupVertex

void unregisterGroupVertex(ExecutionGroupVertex groupVertex)

Unregisters an input vertex from the input split assigner. All resources allocated to the input vertex are freed as part of this operation.

Parameters:

groupVertex - the input vertex to unregister

getNextInputSplit

InputSplit getNextInputSplit(ExecutionVertex vertex)

Returns the next input split that shall be consumed by the given input vertex.

Parameters:

vertex - the vertex for which the next input split to be consumed shall be determined

Returns:

the next input split to be consumed or null if no more splits shall be consumed by the given vertex