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

java.lang.Object
  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.