eu.stratosphere.example.java.relational

Class WebLogAnalysis.FilterVisits

java.lang.Object

eu.stratosphere.api.common.functions.AbstractFunction

eu.stratosphere.api.java.functions.FilterFunction<Tuple2<String,String>>

eu.stratosphere.example.java.relational.WebLogAnalysis.FilterVisits

All Implemented Interfaces:

Function, GenericFilter<Tuple2<String,String>>, Serializable

Enclosing class:

WebLogAnalysis

public static class WebLogAnalysis.FilterVisits
extends FilterFunction<Tuple2<String,String>>

MapFunction that filters for records of the visits relation where the year (from the date string) is equal to a certain value.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
WebLogAnalysis.FilterVisits()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	filter(Tuple2<String,String> value) Filters for records of the visits relation where the year of visit is equal to a specified value.

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

close, getIterationRuntimeContext, getRuntimeContext, open, 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, open, setRuntimeContext

Constructor Detail

WebLogAnalysis.FilterVisits

public WebLogAnalysis.FilterVisits()

Method Detail

filter

public boolean filter(Tuple2<String,String> value)
               throws Exception

Filters for records of the visits relation where the year of visit is equal to a specified value. The URL of all visit records passing the filter is emitted. Output Format: 0: URL 1: DATE

Specified by:

filter in interface GenericFilter<Tuple2<String,String>>

Specified by:

filter in class FilterFunction<Tuple2<String,String>>

Throws:

Exception