Package org.wikidata.wdtk.examples

Class LifeExpectancyProcessor

java.lang.Object

org.wikidata.wdtk.examples.LifeExpectancyProcessor

All Implemented Interfaces:

EntityDocumentProcessor

public class LifeExpectancyProcessor
extends Object
implements EntityDocumentProcessor

This document processor calculates the average life expectancy of people, based on property ids used on Wikidata. The results can be written to the file life-expectancies.csv in the example results directory.

Note that the computation of life expectancies based on the life spans of people who have died already has some systematic bias, since none of the sampled person is expected to die in the future.

Author:

Markus Kroetzsch

Constructor Summary

Constructors

Constructor	Description
LifeExpectancyProcessor()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Main method.
static void	printDocumentation()	Prints some basic documentation about this program.
void	processItemDocument(ItemDocument itemDocument)	Processes the given ItemDocument.
void	writeFinalResults()	Writes the results of the processing to a file.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.wikidata.wdtk.datamodel.interfaces.EntityDocumentProcessor

processEntityRedirectDocument, processLexemeDocument, processMediaInfoDocument, processPropertyDocument

Constructor Details

LifeExpectancyProcessor

public LifeExpectancyProcessor()

Method Details

main

public static void main(String[] args)

Main method. Processes the whole dump using this processor and writes the results to a file. To change which dump file to use and whether to run in offline mode, modify the settings in ExampleHelpers.

processItemDocument

public void processItemDocument(ItemDocument itemDocument)

Description copied from interface: EntityDocumentProcessor

Processes the given ItemDocument.

Specified by:

processItemDocument in interface EntityDocumentProcessor

Parameters:

itemDocument - the ItemDocument

writeFinalResults

public void writeFinalResults()

Writes the results of the processing to a file.

printDocumentation

public static void printDocumentation()

Prints some basic documentation about this program.