org.apache.flink.api.java.typeutils.runtime.record

Class RecordPairComparatorFactory

java.lang.Object

org.apache.flink.api.java.typeutils.runtime.record.RecordPairComparatorFactory

All Implemented Interfaces:

TypePairComparatorFactory<Record,Record>

public class RecordPairComparatorFactory
extends Object
implements TypePairComparatorFactory<Record,Record>

A factory for a TypePairComparator for Record. The comparator uses a subset of the fields for the comparison. That subset of fields (positions and types) is read from the supplied configuration.

Constructor Summary

Constructors

Constructor and Description
RecordPairComparatorFactory()

Method Summary

Methods

Modifier and Type	Method and Description
TypePairComparator<Record,Record>	createComparator12(TypeComparator<Record> comparator1, TypeComparator<Record> comparator2)
TypePairComparator<Record,Record>	createComparator21(TypeComparator<Record> comparator1, TypeComparator<Record> comparator2)
static RecordPairComparatorFactory	get() Gets an instance of the comparator factory.

Methods inherited from class java.lang.Object

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

Constructor Detail

RecordPairComparatorFactory

public RecordPairComparatorFactory()

Method Detail

get

public static final RecordPairComparatorFactory get()

Gets an instance of the comparator factory. The instance is shared, since the factory is a stateless class.

Returns:

An instance of the comparator factory.

createComparator12

public TypePairComparator<Record,Record> createComparator12(TypeComparator<Record> comparator1,
                                                   TypeComparator<Record> comparator2)

Specified by:

createComparator12 in interface TypePairComparatorFactory<Record,Record>

createComparator21

public TypePairComparator<Record,Record> createComparator21(TypeComparator<Record> comparator1,
                                                   TypeComparator<Record> comparator2)

Specified by:

createComparator21 in interface TypePairComparatorFactory<Record,Record>