eu.stratosphere.example.java.record.relational

Class TPCHQuery3.FilterO

java.lang.Object

eu.stratosphere.api.common.functions.AbstractFunction

eu.stratosphere.api.java.record.functions.MapFunction

eu.stratosphere.example.java.record.relational.TPCHQuery3.FilterO

All Implemented Interfaces:

Function, GenericMapper<Record,Record>, Serializable

Enclosing class:

TPCHQuery3

public static class TPCHQuery3.FilterO
extends MapFunction
implements Serializable

Map PACT implements the selection and projection on the orders table.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TPCHQuery3.FilterO()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(Record record, Collector<Record> out) Filters the orders table by year, order status and order priority.
void	open(Configuration parameters) Reads the filter literals from the configuration.

Methods inherited from class eu.stratosphere.api.common.functions.AbstractFunction

close, getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.stratosphere.api.common.functions.Function

close, getRuntimeContext, setRuntimeContext

Constructor Detail

TPCHQuery3.FilterO

public TPCHQuery3.FilterO()

Method Detail

open

public void open(Configuration parameters)

Reads the filter literals from the configuration.

Specified by:

open in interface Function

Overrides:

open in class AbstractFunction

See Also:

Function.open(eu.stratosphere.configuration.Configuration)

map

public void map(Record record,
       Collector<Record> out)

Filters the orders table by year, order status and order priority. o_orderstatus = "X" AND YEAR(o_orderdate) > Y AND o_orderpriority LIKE "Z" Output Schema: 0:ORDERKEY, 1:SHIPPRIORITY

Specified by:

map in interface GenericMapper<Record,Record>

Specified by:

map in class MapFunction