org.knime.base.node.preproc.joiner
Class JoinContainer

java.lang.Object
  org.knime.base.node.preproc.joiner.JoinContainer

final class JoinContainer
extends Object

A Container used to collect DataRows. The container has three categories for inner, left outer and right outer matches.

Author:

Heiko Hofer

Constructor Summary

JoinContainer(OutputDataRow.Settings settings)
Create a new instance.

Method Summary

(package private) void	addLeftOuter(DataRow row, ExecutionContext exec) Add an outer match of the left table to this JoinContainer.
(package private) void	addMatch(DataRow row, ExecutionContext exec) Add an inner match to the JoinContainer.
(package private) void	addRightOuter(DataRow row, ExecutionContext exec) Add an outer match of the right table to this JoinContainer.
void	close() Close this container.
(package private) BufferedDataTable	getLeftOuter()
(package private) BufferedDataTable	getMatches()
(package private) BufferedDataTable	getRightOuter()
(package private) int	getRowCount()

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinContainer

JoinContainer(OutputDataRow.Settings settings)

Create a new instance.

Parameters:

settings - The settings object of the OutputDataRow.

Method Detail

getRowCount

int getRowCount()

Returns:

the rowCount

addMatch

void addMatch(DataRow row,
              ExecutionContext exec)

Add an inner match to the JoinContainer.

Parameters:

row - The matching row.

exec - The Execution context.

addRightOuter

void addRightOuter(DataRow row,
                   ExecutionContext exec)

Add an outer match of the right table to this JoinContainer. This is a row of the right table appended by missing data cells which does not match a row of the left table.

Parameters:

row - The matching row.

exec - The execution context.

addLeftOuter

void addLeftOuter(DataRow row,
                  ExecutionContext exec)

Add an outer match of the left table to this JoinContainer. This is a row of the left table appended by missing data cells which does not match a row of the right table.

Parameters:

row - The matching row.

exec - The execution context.

getMatches

BufferedDataTable getMatches()

Returns:

The DataTable which holds the inner joins.

getRightOuter

BufferedDataTable getRightOuter()

Returns:

The DataTable which holds the right outer joins.

getLeftOuter

BufferedDataTable getLeftOuter()

Returns:

The DataTable which holds the left outer joins.

close

public void close()

Close this container.