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	setJoinColumns(String... joinColumnNames) Specify the column(s) to join on.
Join.Builder	setJoinColumnsLeft(String... joinColumnNames) Specify the names of the columns to join on, for the left data) The idea: join examples where firstDataValues(joinColumNamesLeft[i]) == secondDataValues(joinColumnNamesRight[i]) for all i
Join.Builder	setJoinColumnsRight(String... joinColumnNames) Specify the names of the columns to join on, for the right data) The idea: join examples where firstDataValues(joinColumNamesLeft[i]) == secondDataValues(joinColumnNamesRight[i]) for all i
Join.Builder	setKeyColumns(String... keyColumnNames) Deprecated. Use setJoinColumns(String...)
Join.Builder	setKeyColumnsLeft(String... keyColumnNames) Deprecated. Use setJoinColumnsLeft(String...)
Join.Builder	setKeyColumnsRight(String... keyColumnNames) Deprecated. Use setJoinColumnsRight(String...)
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

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

Deprecated. Use setJoinColumns(String...)

setKeyColumnsLeft

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

Deprecated. Use setJoinColumnsLeft(String...)

setKeyColumnsRight

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

Deprecated. Use setJoinColumnsRight(String...)

setJoinColumns

public Join.Builder setJoinColumns(String... joinColumnNames)

Specify the column(s) to join on. Here, we are assuming that both data sources have the same column names. If this is not the case, use setJoinColumnsLeft(String...) and setJoinColumnsRight(String...). The idea: join examples where firstDataValues(joinColumNames[i]) == secondDataValues(joinColumnNames[i]) for all i

Parameters:

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

setJoinColumnsLeft

public Join.Builder setJoinColumnsLeft(String... joinColumnNames)

Specify the names of the columns to join on, for the left data) The idea: join examples where firstDataValues(joinColumNamesLeft[i]) == secondDataValues(joinColumnNamesRight[i]) for all i

Parameters:

joinColumnNames - Names of the columns to join on (for left data)

setJoinColumnsRight

public Join.Builder setJoinColumnsRight(String... joinColumnNames)

Specify the names of the columns to join on, for the right data) The idea: join examples where firstDataValues(joinColumNamesLeft[i]) == secondDataValues(joinColumnNamesRight[i]) for all i

Parameters:

joinColumnNames - Names of the columns to join on (for left data)

build

public Join build()