org.apache.flink.runtime.iterative.io

Class SolutionSetFastUpdateOutputCollector<T>

java.lang.Object

org.apache.flink.runtime.iterative.io.SolutionSetFastUpdateOutputCollector<T>

All Implemented Interfaces:

Collector<T>

public class SolutionSetFastUpdateOutputCollector<T>
extends Object
implements Collector<T>

A Collector to update the solution set of a workset iteration.

The records are written to a hash table to allow in-memory point updates.

Assumption for fast updates: the build side iterator of the hash table is already positioned for the update. This is for example the case when a solution set update happens directly after a solution set join. If this assumption doesn't hold, use SolutionSetUpdateOutputCollector, which probes the hash table before updating.

Constructor Summary

Constructors

Constructor and Description
SolutionSetFastUpdateOutputCollector(CompactingHashTable<T> solutionSet)
SolutionSetFastUpdateOutputCollector(CompactingHashTable<T> solutionSet, Collector<T> delegate)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the collector.
void	collect(T record) Emits a record.

Methods inherited from class java.lang.Object

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

Constructor Detail

SolutionSetFastUpdateOutputCollector

public SolutionSetFastUpdateOutputCollector(CompactingHashTable<T> solutionSet)

SolutionSetFastUpdateOutputCollector

public SolutionSetFastUpdateOutputCollector(CompactingHashTable<T> solutionSet,
                                            Collector<T> delegate)

Method Detail

collect

public void collect(T record)

Description copied from interface: Collector

Emits a record.

Specified by:

collect in interface Collector<T>

Parameters:

record - The record to collect.

close

public void close()

Description copied from interface: Collector

Closes the collector. If any data was buffered, that data will be flushed.

Specified by:

close in interface Collector<T>