Package com.lumiomedical.etl.dataframe.processor.column

Class MapColumnProcessor<T,C extends tech.tablesaw.columns.Column<T>>

java.lang.Object

com.lumiomedical.etl.dataframe.processor.column.MapColumnProcessor<T,C>

All Implemented Interfaces:

TableProcessor

Direct Known Subclasses:

RegexReplaceProcessor, StringReplaceProcessor

public class MapColumnProcessor<T,C extends tech.tablesaw.columns.Column<T>>
extends Object
implements TableProcessor

Transforms the values in a given set of columns using a provided mapping function. The column target type is expected to be the same as the origin type (ie. column mutation is not possible).

Author:

Pierre Lecerf ([email protected]) Created on 2020/03/17

Field Summary

Fields

Modifier and Type	Field	Description
protected Function<T,T>	mapper

Constructor Summary

Constructors

Constructor	Description
MapColumnProcessor(ColumnDescriptor<T,C> descriptor, Function<T,T> mapper, String... columnNames)
MapColumnProcessor(ColumnDescriptor<T,C> descriptor, Function<T,T> mapper, Collection<String> columnNames)

Method Summary

Modifier and Type	Method	Description
tech.tablesaw.api.Table	process(tech.tablesaw.api.Table table)

Methods inherited from class java.lang.Object

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

Field Details

mapper

protected Function<T,T> mapper

Constructor Details

MapColumnProcessor

public MapColumnProcessor(ColumnDescriptor<T,C> descriptor, Function<T,T> mapper, String... columnNames)

Parameters:

descriptor -

mapper -

columnNames -

MapColumnProcessor

public MapColumnProcessor(ColumnDescriptor<T,C> descriptor, Function<T,T> mapper, Collection<String> columnNames)

Parameters:

descriptor -

mapper -

columnNames -

Method Details

process

public tech.tablesaw.api.Table process(tech.tablesaw.api.Table table)

Specified by:

process in interface TableProcessor

Returns: