org.datavec.api.transform

Interface Transform

All Superinterfaces:

ColumnOp, java.io.Serializable

All Known Implementing Classes:

AddConstantColumnTransform, AppendStringColumnTransform, BaseColumnsMathOpTransform, BaseColumnTransform, BaseDoubleTransform, BaseIntegerTransform, BaseStringTransform, BaseTransform, CategoricalToIntegerTransform, CategoricalToOneHotTransform, ConditionalCopyValueTransform, ConditionalReplaceValueTransform, ConvertToString, CoordinatesDistanceTransform, CustomTransform, DeriveColumnsFromTimeTransform, DoubleColumnsMathOpTransform, DoubleMathFunctionTransform, DoubleMathOpTransform, DuplicateColumnsTransform, IntegerColumnsMathOpTransform, IntegerMathOpTransform, IntegerToCategoricalTransform, IPAddressToCoordinatesTransform, IPAddressToLocationTransform, Log2Normalizer, LongColumnsMathOpTransform, LongMathOpTransform, MapAllStringsExceptListTransform, MinMaxNormalizer, ParseDoubleTransform, ReduceSequenceByWindowTransform, RemoveAllColumnsExceptForTransform, RemoveColumnsTransform, RemoveWhiteSpaceTransform, RenameColumnsTransform, ReorderColumnsTransform, ReplaceEmptyIntegerWithValueTransform, ReplaceEmptyStringTransform, ReplaceInvalidWithIntegerTransform, SequenceDifferenceTransform, StandardizeNormalizer, StringListToCategoricalSetTransform, StringMapTransform, StringToCategoricalTransform, StringToTimeTransform, SubtractMeanNormalizer, TimeMathOpTransform

public interface Transform
extends java.io.Serializable, ColumnOp

A Transform converts an example to another example, or a sequence to another sequence

Method Summary

Modifier and Type	Method and Description
java.util.List<Writable>	map(java.util.List<Writable> writables) Transform a writable in to another writable
java.lang.Object	map(java.lang.Object input) Transform an object in to another object
java.util.List<java.util.List<Writable>>	mapSequence(java.util.List<java.util.List<Writable>> sequence) Transform a sequence
java.lang.Object	mapSequence(java.lang.Object sequence) Transform a sequence

Methods inherited from interface org.datavec.api.transform.ColumnOp

columnName, columnNames, getInputSchema, outputColumnName, outputColumnNames, setInputSchema, transform

Method Detail

map

java.util.List<Writable> map(java.util.List<Writable> writables)

Transform a writable in to another writable

Parameters:

writables - the record to transform

Returns:

the transformed writable

mapSequence

java.util.List<java.util.List<Writable>> mapSequence(java.util.List<java.util.List<Writable>> sequence)

Transform a sequence

map

java.lang.Object map(java.lang.Object input)

Transform an object in to another object

Parameters:

input - the record to transform

Returns:

the transformed writable

mapSequence

java.lang.Object mapSequence(java.lang.Object sequence)

Transform a sequence