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

Class PojoComparator<T>

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

public final class PojoComparator<T>
extends TypeComparator<T>
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PojoComparator(Field[] keyFields, TypeComparator<?>[] comparators, TypeSerializer<T> serializer, Class<T> type)

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)
PojoComparator<T>	duplicate()
boolean	equalToReference(T candidate)
TypeComparator<Object>[]	getComparators()
Field[]	getKeyFields()
int	getNormalizeKeyLen()
int	hash(T value)
boolean	invertNormalizedKey()
boolean	isNormalizedKeyPrefixOnly(int keyBytes)
void	putNormalizedKey(T value, 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

PojoComparator

public PojoComparator(Field[] keyFields,
              TypeComparator<?>[] comparators,
              TypeSerializer<T> serializer,
              Class<T> type)

Method Detail

getKeyFields

public Field[] getKeyFields()

getComparators

public TypeComparator<Object>[] getComparators()

hash

public int hash(T value)

Specified by:

hash in class TypeComparator<T>

setReference

public void setReference(T toCompare)

Specified by:

setReference in class TypeComparator<T>

equalToReference

public boolean equalToReference(T candidate)

Specified by:

equalToReference in class TypeComparator<T>

compareToReference

public int compareToReference(TypeComparator<T> referencedComparator)

Specified by:

compareToReference in class TypeComparator<T>

compare

public int compare(T first,
          T second)

Specified by:

compare in class TypeComparator<T>

compare

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

Specified by:

compare in class TypeComparator<T>

Throws:

IOException

supportsNormalizedKey

public boolean supportsNormalizedKey()

Specified by:

supportsNormalizedKey in class TypeComparator<T>

getNormalizeKeyLen

public int getNormalizeKeyLen()

Specified by:

getNormalizeKeyLen in class TypeComparator<T>

isNormalizedKeyPrefixOnly

public boolean isNormalizedKeyPrefixOnly(int keyBytes)

Specified by:

isNormalizedKeyPrefixOnly in class TypeComparator<T>

putNormalizedKey

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

Specified by:

putNormalizedKey in class TypeComparator<T>

invertNormalizedKey

public boolean invertNormalizedKey()

Specified by:

invertNormalizedKey in class TypeComparator<T>

supportsSerializationWithKeyNormalization

public boolean supportsSerializationWithKeyNormalization()

Specified by:

supportsSerializationWithKeyNormalization in class TypeComparator<T>

writeWithKeyNormalization

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

Specified by:

writeWithKeyNormalization in class TypeComparator<T>

Throws:

IOException

readWithKeyDenormalization

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

Specified by:

readWithKeyDenormalization in class TypeComparator<T>

Throws:

IOException

duplicate

public PojoComparator<T> duplicate()

Specified by:

duplicate in class TypeComparator<T>