org.apache.lucene.util.encoding

Class UniqueValuesIntEncoder

java.lang.Object

org.apache.lucene.util.encoding.IntEncoder

org.apache.lucene.util.encoding.IntEncoderFilter

org.apache.lucene.util.encoding.UniqueValuesIntEncoder

public final class UniqueValuesIntEncoder
extends IntEncoderFilter

An IntEncoderFilter which ensures only unique values are encoded. The implementation assumes the values given to encode(IntsRef, BytesRef) are sorted. If this is not the case, you can chain this encoder with SortingIntEncoder.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields inherited from class org.apache.lucene.util.encoding.IntEncoderFilter

encoder

Constructor Summary

Constructors

Constructor and Description
UniqueValuesIntEncoder(IntEncoder encoder) Constructs a new instance with the given encoder.

Method Summary

Methods

Modifier and Type	Method and Description
IntDecoder	createMatchingDecoder() Returns an IntDecoder which can decode the values that were encoded with this encoder.
void	encode(IntsRef values, BytesRef buf) Encodes the values to the given buffer.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueValuesIntEncoder

public UniqueValuesIntEncoder(IntEncoder encoder)

Constructs a new instance with the given encoder.

Method Detail

encode

public void encode(IntsRef values,
          BytesRef buf)

Description copied from class: IntEncoder

Encodes the values to the given buffer. Note that the buffer's offset and length are set to 0.

Specified by:

encode in class IntEncoder

createMatchingDecoder

public IntDecoder createMatchingDecoder()

Description copied from class: IntEncoder

Returns an IntDecoder which can decode the values that were encoded with this encoder.

Specified by:

createMatchingDecoder in class IntEncoder

toString

public String toString()

Overrides:

toString in class Object