org.apache.flink.api.common.typeutils.record

Class RecordPairComparator

java.lang.Object

org.apache.flink.api.common.typeutils.TypePairComparator<Record,Record>

org.apache.flink.api.common.typeutils.record.RecordPairComparator

public class RecordPairComparator
extends TypePairComparator<Record,Record>

Implementation of the TypePairComparator interface for Pact Records. The equality is established on a set of key fields. The indices of the key fields may be different on the reference and candidate side.

Constructor Summary

Constructors

Constructor and Description
RecordPairComparator(int[] keyFieldsReference, int[] keyFieldsCandidate, Class<? extends Key<?>>[] keyTypes)

Method Summary

Methods

Modifier and Type	Method and Description
int	compareToReference(Record candidate)
boolean	equalToReference(Record candidate) Checks, whether the given candidate instance is equal to the reference instance, with respect to this comparator's equality definition.
void	setReference(Record reference) Sets the reference for comparisons.

Methods inherited from class java.lang.Object

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

Constructor Detail

RecordPairComparator

public RecordPairComparator(int[] keyFieldsReference,
                    int[] keyFieldsCandidate,
                    Class<? extends Key<?>>[] keyTypes)

Method Detail

setReference

public void setReference(Record reference)

Description copied from class: TypePairComparator

Sets the reference for comparisons.

Specified by:

setReference in class TypePairComparator<Record,Record>

Parameters:

reference - The reference instance.

equalToReference

public boolean equalToReference(Record candidate)

Description copied from class: TypePairComparator

Checks, whether the given candidate instance is equal to the reference instance, with respect to this comparator's equality definition.

Specified by:

equalToReference in class TypePairComparator<Record,Record>

Parameters:

candidate - The candidate to check.

Returns:

True, if the candidate is equal to the reference, false otherwise.

compareToReference

public int compareToReference(Record candidate)

Specified by:

compareToReference in class TypePairComparator<Record,Record>