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

Class TupleComparator<T extends Tuple>

java.lang.Object

org.apache.flink.api.common.typeutils.TypeComparator<T>

org.apache.flink.api.common.typeutils.CompositeTypeComparator<T>

org.apache.flink.api.java.typeutils.runtime.TupleComparatorBase<T>

org.apache.flink.api.java.typeutils.runtime.TupleComparator<T>

All Implemented Interfaces:

Serializable

public final class TupleComparator<T extends Tuple>
extends TupleComparatorBase<T>

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.api.java.typeutils.runtime.TupleComparatorBase

comparators, deserializedFields1, deserializedFields2, HASH_SALT, invertNormKey, keyPositions, normalizableKeyPrefixLen, normalizedKeyLengths, numLeadingNormalizableKeys, serializers

Constructor Summary

Constructors

Constructor and Description
TupleComparator(int[] keyPositions, TypeComparator<?>[] comparators, TypeSerializer<?>[] serializers)

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(T first, T second)
TypeComparator<T>	duplicate()
boolean	equalToReference(T candidate)
int	extractKeys(Object record, Object[] target, int index)
int	hash(T value)
void	putNormalizedKey(T value, MemorySegment target, int offset, int numBytes)
void	setReference(T toCompare)

Methods inherited from class org.apache.flink.api.java.typeutils.runtime.TupleComparatorBase

compareSerialized, compareToReference, getFlatComparator, getKeyPositions, getNormalizeKeyLen, instantiateDeserializationUtils, invertNormalizedKey, isNormalizedKeyPrefixOnly, privateDuplicate, readWithKeyDenormalization, supportsNormalizedKey, supportsSerializationWithKeyNormalization, writeWithKeyNormalization

Methods inherited from class org.apache.flink.api.common.typeutils.CompositeTypeComparator

getFlatComparators

Methods inherited from class org.apache.flink.api.common.typeutils.TypeComparator

compareAgainstReference, supportsCompareAgainstReference

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleComparator

public TupleComparator(int[] keyPositions,
               TypeComparator<?>[] comparators,
               TypeSerializer<?>[] serializers)

Method Detail

hash

public int hash(T value)

Specified by:

hash in class TypeComparator<T extends Tuple>

setReference

public void setReference(T toCompare)

Specified by:

setReference in class TypeComparator<T extends Tuple>

equalToReference

public boolean equalToReference(T candidate)

Specified by:

equalToReference in class TypeComparator<T extends Tuple>

compare

public int compare(T first,
          T second)

Specified by:

compare in class TypeComparator<T extends Tuple>

putNormalizedKey

public void putNormalizedKey(T value,
                    MemorySegment target,
                    int offset,
                    int numBytes)

Specified by:

putNormalizedKey in class TypeComparator<T extends Tuple>

extractKeys

public int extractKeys(Object record,
              Object[] target,
              int index)

Specified by:

extractKeys in class TypeComparator<T extends Tuple>

duplicate

public TypeComparator<T> duplicate()

Specified by:

duplicate in class TypeComparator<T extends Tuple>