org.apache.hadoop.io

类 UTF8.Comparator

java.lang.Object

org.apache.hadoop.io.WritableComparator

org.apache.hadoop.io.UTF8.Comparator

所有已实现的接口:

Comparator, RawComparator

封闭类:

UTF8

public static class UTF8.Comparator
extends WritableComparator

A WritableComparator optimized for UTF8 keys.

构造器概要

构造器

构造器和说明
UTF8.Comparator()

方法概要

方法

限定符和类型	方法和说明
int	compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) Optimization hook.

从类继承的方法 org.apache.hadoop.io.WritableComparator

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

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Comparator

equals

构造器详细资料

UTF8.Comparator

public UTF8.Comparator()

方法详细资料

compare

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

从类复制的说明: 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).

指定者:

compare 在接口中 RawComparator

覆盖:

compare 在类中 WritableComparator