org.datavec.api.transform.join

Class Join

java.lang.Object

org.datavec.api.transform.join.Join

All Implemented Interfaces:

Serializable

public class Join
extends Object
implements Serializable

Join class: used to specify a join (like an SQL join)

Author:

Alex Black

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Join.Builder
static class	Join.JoinType Type of join Inner: Return examples where the join column values occur in both LeftOuter: Return all examples from left data, whether there is a matching right value or not.

Method Summary

Modifier and Type	Method and Description
Schema	getOutputSchema()
List<Writable>	joinExamples(List<Writable> leftExample, List<Writable> rightExample) Join the examples.

Methods inherited from class java.lang.Object

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

Method Detail

getOutputSchema

public Schema getOutputSchema()

joinExamples

public List<Writable> joinExamples(List<Writable> leftExample,
                                   List<Writable> rightExample)

Join the examples. Note: left or right examples may be null; if they are null, the appropriate NullWritables are inserted.

Parameters:

leftExample -

rightExample -

Returns: