de.unknownreality.dataframe.join

Class DirectionJoin

java.lang.Object

de.unknownreality.dataframe.join.AbstractJoin

de.unknownreality.dataframe.join.DirectionJoin

Direct Known Subclasses:

LeftJoin, RightJoin

public abstract class DirectionJoin
extends AbstractJoin

Created by Alex on 10.07.2016.

Constructor Summary

Constructors

Constructor and Description
DirectionJoin()

Method Summary

Modifier and Type	Method and Description
JoinedDataFrame	createDirectionJoin(DataFrame dfA, DataFrame dfB, DataFrameHeader joinHeader, JoinInfo joinInfo, JoinColumn[] joinColumns) Creates a direction (left or right) join

Methods inherited from class de.unknownreality.dataframe.join.AbstractJoin

appendGroupJoinedRows, fillJoinHeader, fillNA, fillValues, join, setGroupValuesA, setGroupValuesB

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectionJoin

public DirectionJoin()

Method Detail

createDirectionJoin

public JoinedDataFrame createDirectionJoin(DataFrame dfA,
                                           DataFrame dfB,
                                           DataFrameHeader joinHeader,
                                           JoinInfo joinInfo,
                                           JoinColumn[] joinColumns)

Creates a direction (left or right) join

Parameters:

dfA - first data frame

dfB - second data frame

joinHeader - joined data frame header

joinInfo - info about the columns in the joined data frame

joinColumns - columns used for the join

Returns:

joined data frame