de.hpi.fgis.dude.preprocessor
Class CountPreprocessor

java.lang.Object
  de.hpi.fgis.dude.preprocessor.CountPreprocessor

All Implemented Interfaces:

Preprocessor

public class CountPreprocessor
extends Object
implements Preprocessor

CountPreprocessor is a sample class, that shows how the Preprocessor interface can be used. Since analyzeDuDeObject(DuDeObject) is called once for each extracted DuDeObject we can gather statistics within the extraction phase. This sample class implements an object count. It simply counts the analyzeDuDeObject(DuDeObject) calls. The object count can be used later on by calling getObjectCount().

Author:

Matthias Pohl

Constructor Summary

CountPreprocessor()
Initializes a CountPreprocessor.

Method Summary

void	analyzeDuDeObject(DuDeObject data) Passes the currently extracted DuDeObject to the Preprocessor for further analysis.
void	clearData() Clears statistics that were already gathered.
void	finish() This method is called after finishing the data extraction process.
int	getObjectCount() Returns the number of objects that were extracted during the data extraction phase.

Methods inherited from class java.lang.Object

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

Constructor Detail

CountPreprocessor

public CountPreprocessor()

Initializes a CountPreprocessor.

Method Detail

analyzeDuDeObject

public void analyzeDuDeObject(DuDeObject data)

Description copied from interface: Preprocessor

Passes the currently extracted DuDeObject to the Preprocessor for further analysis. This method is called by every DataSource per extracted data record.

Specified by:

analyzeDuDeObject in interface Preprocessor

Parameters:

data - The DuDeObject that shall be analyzed.

getObjectCount

public int getObjectCount()

Returns the number of objects that were extracted during the data extraction phase.

Returns:

The number of extracted DuDeObjects.

clearData

public void clearData()

Description copied from interface: Preprocessor

Clears statistics that were already gathered.

Specified by:

clearData in interface Preprocessor

finish

public void finish()

Description copied from interface: Preprocessor

This method is called after finishing the data extraction process. It can be used in order to created some further statistics.

Specified by:

finish in interface Preprocessor