org.apache.hadoop.mapreduce.lib.db
Class BigDecimalSplitter

java.lang.Object
  extended by org.apache.hadoop.mapreduce.lib.db.BigDecimalSplitter
All Implemented Interfaces:
DBSplitter
Direct Known Subclasses:
TextSplitter

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class BigDecimalSplitter
extends Object
implements DBSplitter

Implement DBSplitter over BigDecimal values.


Constructor Summary
BigDecimalSplitter()
           
 
Method Summary
 List<InputSplit> split(Configuration conf, ResultSet results, String colName)
          Given a ResultSet containing one record (and already advanced to that record) with two columns (a low value, and a high value, both of the same type), determine a set of splits that span the given values.
protected  BigDecimal tryDivide(BigDecimal numerator, BigDecimal denominator)
          Divide numerator by denominator.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BigDecimalSplitter

public BigDecimalSplitter()
Method Detail

split

public List<InputSplit> split(Configuration conf,
                              ResultSet results,
                              String colName)
                       throws SQLException
Description copied from interface: DBSplitter
Given a ResultSet containing one record (and already advanced to that record) with two columns (a low value, and a high value, both of the same type), determine a set of splits that span the given values.

Specified by:
split in interface DBSplitter
Throws:
SQLException

tryDivide

protected BigDecimal tryDivide(BigDecimal numerator,
                               BigDecimal denominator)
Divide numerator by denominator. If impossible in exact mode, use rounding.



Copyright © 2012 Apache Software Foundation. All Rights Reserved.