@InterfaceAudience.Public @InterfaceStability.Stable public class KeyFieldBasedPartitioner<K2,V2> extends KeyFieldBasedPartitioner<K2,V2> implements Partitioner<K2,V2>
KeyFieldBasedComparator.
  The key specification supported is of the form -k pos1[,pos2], where,
  pos is of the form f[.c][opts], where f is the number
  of the key field to use, and c is the number of the first character from
  the beginning of the field. Fields and character posns are numbered 
  starting with 1; a character position of zero in pos2 indicates the
  field's last character. If '.c' is omitted from pos1, it defaults to 1
  (the beginning of the field); if omitted from pos2, it defaults to 0 
  (the end of the field).PARTITIONER_OPTIONS| コンストラクタと説明 | 
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| KeyFieldBasedPartitioner() | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| void | configure(JobConf job)Initializes a new instance from a  JobConf. | 
getConf, getKeyFieldPartitionerOption, getPartition, getPartition, hashCode, setConf, setKeyFieldPartitionerOptionsclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetPartitionpublic KeyFieldBasedPartitioner()
public void configure(JobConf job)
JobConfigurableJobConf.configure インタフェース内 JobConfigurablejob - the configurationCopyright © 2016 Apache Software Foundation. All rights reserved.