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

Class TupleLeadingFieldComparator<T extends Tuple,K>

java.lang.Object

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

org.apache.flink.api.java.typeutils.runtime.TupleLeadingFieldComparator<T,K>

All Implemented Interfaces:

Serializable

public final class TupleLeadingFieldComparator<T extends Tuple,K>
extends TypeComparator<T>
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TupleLeadingFieldComparator(TypeComparator<K> comparator)

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(DataInputView firstSource, DataInputView secondSource)
int	compare(T first, T second)
int	compareToReference(TypeComparator<T> referencedComparator)
TypeComparator<T>	duplicate()
boolean	equalToReference(T candidate)
TypeComparator<K>	getComparator()
protected TypeComparator<K>	getFieldComparator()
int	getNormalizeKeyLen()
int	hash(T value)
boolean	invertNormalizedKey()
boolean	isNormalizedKeyPrefixOnly(int keyBytes)
void	putNormalizedKey(T record, MemorySegment target, int offset, int numBytes)
T	readWithKeyDenormalization(T reuse, DataInputView source)
void	setReference(T toCompare)
boolean	supportsNormalizedKey()
boolean	supportsSerializationWithKeyNormalization()
void	writeWithKeyNormalization(T record, DataOutputView target)

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

TupleLeadingFieldComparator

public TupleLeadingFieldComparator(TypeComparator<K> comparator)

Method Detail

getComparator

public TypeComparator<K> getComparator()

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>

compareToReference

public int compareToReference(TypeComparator<T> referencedComparator)

Specified by:

compareToReference in class TypeComparator<T extends Tuple>

compare

public int compare(T first,
          T second)

Specified by:

compare in class TypeComparator<T extends Tuple>

compare

public int compare(DataInputView firstSource,
          DataInputView secondSource)
            throws IOException

Specified by:

compare in class TypeComparator<T extends Tuple>

Throws:

IOException

supportsNormalizedKey

public boolean supportsNormalizedKey()

Specified by:

supportsNormalizedKey in class TypeComparator<T extends Tuple>

supportsSerializationWithKeyNormalization

public boolean supportsSerializationWithKeyNormalization()

Specified by:

supportsSerializationWithKeyNormalization in class TypeComparator<T extends Tuple>

getNormalizeKeyLen

public int getNormalizeKeyLen()

Specified by:

getNormalizeKeyLen in class TypeComparator<T extends Tuple>

isNormalizedKeyPrefixOnly

public boolean isNormalizedKeyPrefixOnly(int keyBytes)

Specified by:

isNormalizedKeyPrefixOnly in class TypeComparator<T extends Tuple>

putNormalizedKey

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

Specified by:

putNormalizedKey in class TypeComparator<T extends Tuple>

writeWithKeyNormalization

public void writeWithKeyNormalization(T record,
                             DataOutputView target)
                               throws IOException

Specified by:

writeWithKeyNormalization in class TypeComparator<T extends Tuple>

Throws:

IOException

readWithKeyDenormalization

public T readWithKeyDenormalization(T reuse,
                           DataInputView source)
                                           throws IOException

Specified by:

readWithKeyDenormalization in class TypeComparator<T extends Tuple>

Throws:

IOException

invertNormalizedKey

public boolean invertNormalizedKey()

Specified by:

invertNormalizedKey in class TypeComparator<T extends Tuple>

duplicate

public TypeComparator<T> duplicate()

Specified by:

duplicate in class TypeComparator<T extends Tuple>

getFieldComparator

protected TypeComparator<K> getFieldComparator()