org.apache.flink.api.common.io

Class DefaultInputSplitAssigner

java.lang.Object

org.apache.flink.api.common.io.DefaultInputSplitAssigner

All Implemented Interfaces:

InputSplitAssigner

@Internal
public class DefaultInputSplitAssigner
extends Object
implements InputSplitAssigner

This is the default implementation of the InputSplitAssigner interface. The default input split assigner simply returns all input splits of an input vertex in the order they were originally computed.

Constructor Summary

Constructors

Constructor and Description
DefaultInputSplitAssigner(Collection<? extends InputSplit> splits)
DefaultInputSplitAssigner(InputSplit[] splits)

Method Summary

Modifier and Type	Method and Description
InputSplit	getNextInputSplit(String host, int taskId) Returns the next input split that shall be consumed.
void	returnInputSplit(List<InputSplit> splits, int taskId) Return the splits to assigner if the task failed to process it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultInputSplitAssigner

public DefaultInputSplitAssigner(InputSplit[] splits)

DefaultInputSplitAssigner

public DefaultInputSplitAssigner(Collection<? extends InputSplit> splits)

Method Detail

getNextInputSplit

public InputSplit getNextInputSplit(String host,
                                    int taskId)

Description copied from interface: InputSplitAssigner

Returns the next input split that shall be consumed. The consumer's host is passed as a parameter to allow localized assignments.

Specified by:

getNextInputSplit in interface InputSplitAssigner

Parameters:

host - The host address of split requesting task.

taskId - The id of the split requesting task.

Returns:

the next input split to be consumed, or null if no more splits remain.

returnInputSplit

public void returnInputSplit(List<InputSplit> splits,
                             int taskId)

Description copied from interface: InputSplitAssigner

Return the splits to assigner if the task failed to process it.

Specified by:

returnInputSplit in interface InputSplitAssigner

Parameters:

splits - The list of input splits to be returned.

taskId - The id of the task that failed to process the input splits.