org.apache.hadoop.io
Class UTF8.Comparator

java.lang.Object
  org.apache.hadoop.io.WritableComparator
      org.apache.hadoop.io.UTF8.Comparator

All Implemented Interfaces:

Comparator, RawComparator

Enclosing class:

UTF8

public static class UTF8.Comparator
extends WritableComparator

A WritableComparator optimized for UTF8 keys.

Constructor Summary

UTF8.Comparator()

Method Summary

int	compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) Optimization hook.

Methods inherited from class org.apache.hadoop.io.WritableComparator

compare, compare, compareBytes, define, get, getKeyClass, hashBytes, newKey, readDouble, readFloat, readInt, readLong, readUnsignedShort, readVInt, readVLong

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

Constructor Detail

UTF8.Comparator

public UTF8.Comparator()

Method Detail

compare

public int compare(byte[] b1,
                   int s1,
                   int l1,
                   byte[] b2,
                   int s2,
                   int l2)

Description copied from class: WritableComparator

Optimization hook. Override this to make SequenceFile.Sorter's scream.

The default implementation reads the data into two WritableComparables (using Writable.readFields(DataInput), then calls WritableComparator.compare(WritableComparable,WritableComparable).

Specified by:

compare in interface RawComparator

Overrides:

compare in class WritableComparator