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 HashTable 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, TypeSerializer<T> serializer)
SolutionSetFastUpdateOutputCollector(CompactingHashTable<T> solutionSet, TypeSerializer<T> serializer, Collector<T> delegate)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
void	collect(T 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,
                                    TypeSerializer<T> serializer)

SolutionSetFastUpdateOutputCollector

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

Method Detail

collect

public void collect(T record)

Specified by:

collect in interface Collector<T>

close

public void close()

Specified by:

close in interface Collector<T>