org.apache.hadoop.examples

类 SecondarySort.FirstGroupingComparator

java.lang.Object

org.apache.hadoop.examples.SecondarySort.FirstGroupingComparator

所有已实现的接口:

Comparator<SecondarySort.IntPair>, RawComparator<SecondarySort.IntPair>

封闭类:

SecondarySort

public static class SecondarySort.FirstGroupingComparator
extends Object
implements RawComparator<SecondarySort.IntPair>

Compare only the first part of the pair, so that reduce is called once for each value of the first part.

构造器概要

构造器

构造器和说明
SecondarySort.FirstGroupingComparator()

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)
int	compare(SecondarySort.IntPair o1, SecondarySort.IntPair o2)

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

SecondarySort.FirstGroupingComparator

public SecondarySort.FirstGroupingComparator()

方法详细资料

compare

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

指定者:

compare 在接口中 RawComparator<SecondarySort.IntPair>

compare

public int compare(SecondarySort.IntPair o1,
          SecondarySort.IntPair o2)

指定者:

compare 在接口中 Comparator<SecondarySort.IntPair>