BytesRefComparator

java.lang.Object

org.apache.lucene.util.BytesRefComparator

All Implemented Interfaces:: Comparator<BytesRef>

public abstract class BytesRefComparator extends Object implements Comparator<BytesRef>

Specialized BytesRef comparator that FixedLengthBytesRefArray.iterator(Comparator) has optimizations for.

Field Summary

Fields

Modifier and Type

Field

Description

(package private) final int

comparedBytesCount
Constructor Summary

Constructors

Modifier

Constructor

Description

protected

BytesRefComparator(int comparedBytesCount)

Sole constructor.
Method Summary

Modifier and Type

Method

Description

protected abstract int

byteAt(BytesRef ref, int i)

Return the unsigned byte to use for comparison at index i, or -1 if all bytes that are useful for comparisons are exhausted.

int

compare(BytesRef o1, BytesRef o2)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Details
- comparedBytesCount
  
  final int comparedBytesCount
Constructor Details
- BytesRefComparator
  
  protected BytesRefComparator(int comparedBytesCount)
  
  Sole constructor.
  
  Parameters:
  
  comparedBytesCount - the maximum number of bytes to compare.
Method Details
- byteAt
  
  protected abstract int byteAt(BytesRef ref, int i)
  
  Return the unsigned byte to use for comparison at index i, or -1 if all bytes that are useful for comparisons are exhausted. This may only be called with a value of i between 0 included and comparedBytesCount excluded.
- compare
  
  public int compare(BytesRef o1, BytesRef o2)
  
  Specified by:
  
  compare in interface Comparator<BytesRef>