org.apache.hadoop.mapreduce.lib.db

Class OracleDataDrivenDBInputFormat<T extends DBWritable>

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<LongWritable,T>

org.apache.hadoop.mapreduce.lib.db.DBInputFormat<T>

org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat<T>

org.apache.hadoop.mapreduce.lib.db.OracleDataDrivenDBInputFormat<T>

All Implemented Interfaces:

Configurable

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class OracleDataDrivenDBInputFormat<T extends DBWritable>
extends DataDrivenDBInputFormat<T>
implements Configurable

A InputFormat that reads input data from an SQL table in an Oracle db.

Field Summary

Fields inherited from class org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat

SUBSTITUTE_TOKEN

Fields inherited from class org.apache.hadoop.mapreduce.lib.db.DBInputFormat

conditions, connection, dbConf, dbProductName, fieldNames, tableName

Constructor Summary

Constructors

Constructor and Description
OracleDataDrivenDBInputFormat()

Method Summary

Modifier and Type	Method and Description
protected RecordReader<LongWritable,T>	createDBRecordReader(org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit split, Configuration conf)
protected DBSplitter	getSplitter(int sqlDataType)

Methods inherited from class org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat

getBoundingValsQuery, getSplits, setBoundingQuery, setInput, setInput

Methods inherited from class org.apache.hadoop.mapreduce.lib.db.DBInputFormat

closeConnection, createConnection, createRecordReader, getConf, getConnection, getCountQuery, getDBConf, getDBProductName, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

OracleDataDrivenDBInputFormat

public OracleDataDrivenDBInputFormat()

Method Detail

getSplitter

protected DBSplitter getSplitter(int sqlDataType)

Overrides:

getSplitter in class DataDrivenDBInputFormat<T extends DBWritable>

Returns:

the DBSplitter implementation to use to divide the table/query into InputSplits.

createDBRecordReader

protected RecordReader<LongWritable,T> createDBRecordReader(org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit split,
                                                            Configuration conf)
                                                     throws IOException

Overrides:

createDBRecordReader in class DataDrivenDBInputFormat<T extends DBWritable>

Throws:

IOException