org.datavec.api.transform.join

Class Join.Builder

java.lang.Object

org.datavec.api.transform.join.Join.Builder

Enclosing class:

Join

public static class Join.Builder
extends Object

Constructor Summary

Constructors

Constructor and Description
Builder(Join.JoinType type)

Method Summary

Modifier and Type	Method and Description
Join	build()
Join.Builder	setKeyColumns(String... keyColumnNames) Specify the columns to use as the key.
Join.Builder	setKeyColumnsLeft(String... keyColumnNames)
Join.Builder	setKeyColumnsRight(String... keyColumnNames)
Join.Builder	setSchemas(Schema left, Schema right)

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(Join.JoinType type)

Method Detail

setSchemas

public Join.Builder setSchemas(Schema left,
                               Schema right)

setKeyColumns

public Join.Builder setKeyColumns(String... keyColumnNames)

Specify the columns to use as the key. (With multiple columns: compound key) Here, we are assuming that both data sources have the same key column names. If this is not the case, use setKeyColumnsLeft(String...) and setKeyColumnsRight(String...).

Parameters:

keyColumnNames - Name of the columns to use as the key to join on

setKeyColumnsLeft

public Join.Builder setKeyColumnsLeft(String... keyColumnNames)

setKeyColumnsRight

public Join.Builder setKeyColumnsRight(String... keyColumnNames)

build

public Join build()