pl.edu.agh.cast.data.preprocessing
Interface IImportPreprocessor

public interface IImportPreprocessor

Interface for import preprocessors. Preprocessing is executed after importing data and before converting it to data set.

Author:

AGH CAST Team

Method Summary

List<? extends IPreprocessingItem>	analyzeData(TabularData data, Map<Integer,Integer> mapping) Analyzes input data and returns list of possible changes types.
void	applyChanges(List<? extends IPreprocessingItem> items, IRawDataObserver dataObserver) Apply changes to given input data.
String	getDescription() Returns preprocessing description.
String	getName() Return preprocessing name.
Map<DataCell,String>	getProposedChanges(Collection<? extends IPreprocessingItem> items) Returns proposed changes for items.
void	undoChanges(List<? extends IPreprocessingItem> items, IRawDataObserver dataObserver) Undo changes for specified items (only if items was applied before).

Method Detail

analyzeData

List<? extends IPreprocessingItem> analyzeData(TabularData data,
                                               Map<Integer,Integer> mapping)

Analyzes input data and returns list of possible changes types.

Parameters:

data - input data

mapping - mapping of model column indexes to a particular data column

Returns:

list of possible changes types

applyChanges

void applyChanges(List<? extends IPreprocessingItem> items,
                  IRawDataObserver dataObserver)

Apply changes to given input data.

Parameters:

items - the items for import preprocessing

dataObserver - the observer for raw data monitors

undoChanges

void undoChanges(List<? extends IPreprocessingItem> items,
                 IRawDataObserver dataObserver)

Undo changes for specified items (only if items was applied before).

Parameters:

items - the items for import preprocessing

dataObserver - the observer for raw data monitors

getProposedChanges

Map<DataCell,String> getProposedChanges(Collection<? extends IPreprocessingItem> items)

Returns proposed changes for items.

Parameters:

items - the items for import preprocessing

Returns:

DataCell objects with proposed changes mapped prefixes.

getName

String getName()

Return preprocessing name.

Returns:

preprocessing name

getDescription

String getDescription()

Returns preprocessing description.

Returns:

preprocessing description, if no description returns empty string