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

Class MapColumnIntoProcessor<T,U,C1 extends tech.tablesaw.columns.Column<T>,C2 extends tech.tablesaw.columns.Column<U>>

java.lang.Object

com.lumiomedical.etl.dataframe.processor.column.MapColumnIntoProcessor<T,U,C1,C2>

All Implemented Interfaces:

TableProcessor

Direct Known Subclasses:

MapLongToStringProcessor

public class MapColumnIntoProcessor<T,U,C1 extends tech.tablesaw.columns.Column<T>,C2 extends tech.tablesaw.columns.Column<U>>
extends Object
implements TableProcessor

Transforms the values in a given set of columns using a provided mapping function. The column target type can be different from the origin type (ie. column mutation is possible). In order to do that, a column "provider" function is responsible for building target columns.

Author:

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

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor	Description
MapColumnIntoProcessor(ColumnDescriptor<T,C1> fromDescriptor, ColumnDescriptor<U,C2> toDescriptor, Function<T,U> mapper, String... columnNames)
MapColumnIntoProcessor(ColumnDescriptor<T,C1> fromDescriptor, ColumnDescriptor<U,C2> toDescriptor, Function<T,U> 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,U> mapper

Constructor Details

MapColumnIntoProcessor

public MapColumnIntoProcessor(ColumnDescriptor<T,C1> fromDescriptor, ColumnDescriptor<U,C2> toDescriptor, Function<T,U> mapper, String... columnNames)

Parameters:

fromDescriptor -

toDescriptor -

mapper -

columnNames -

MapColumnIntoProcessor

public MapColumnIntoProcessor(ColumnDescriptor<T,C1> fromDescriptor, ColumnDescriptor<U,C2> toDescriptor, Function<T,U> mapper, Collection<String> columnNames)

Parameters:

fromDescriptor -

toDescriptor -

mapper -

columnNames -

Method Details

process

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

Specified by:

process in interface TableProcessor

Returns: