org.eclipse.incquery.runtime.rete.index

Class OuterJoinNode

java.lang.Object

org.eclipse.incquery.runtime.rete.network.BaseNode

org.eclipse.incquery.runtime.rete.network.StandardNode

org.eclipse.incquery.runtime.rete.index.DualInputNode

org.eclipse.incquery.runtime.rete.index.OuterJoinNode

All Implemented Interfaces:

Node, Supplier

public class OuterJoinNode
extends DualInputNode

Performs a left outer join.

Author:

Gabor Bergmann

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.incquery.runtime.rete.index.DualInputNode

DualInputNode.Side

Constructor Summary

Constructors

Constructor and Description
OuterJoinNode(ReteContainer reteContainer, TupleMask complementerSecondaryMask, Tuple defaults)

Method Summary

Modifier and Type	Method and Description
Tuple	calibrate(Tuple primary, Tuple secondary) Simulates the behaviour of the node for calibration purposes only.
void	notifyUpdate(DualInputNode.Side side, Direction direction, Tuple updateElement, Tuple signature, boolean change) Abstract handler for update event.
void	pullInto(java.util.Collection<Tuple> collector) pulls the contents of this object in this particular moment into a target collection

Methods inherited from class org.eclipse.incquery.runtime.rete.index.DualInputNode

assignTraceInfo, connectToIndexers, getPrimarySlot, getSecondarySlot, setComplementerSecondaryMask

Methods inherited from class org.eclipse.incquery.runtime.rete.network.StandardNode

appendChild, constructIndex, getPulledContents, getReceivers, removeChild

Methods inherited from class org.eclipse.incquery.runtime.rete.network.BaseNode

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.incquery.runtime.rete.network.Node

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag

Constructor Detail

OuterJoinNode

public OuterJoinNode(ReteContainer reteContainer,
                     TupleMask complementerSecondaryMask,
                     Tuple defaults)

Parameters:

reteContainer -

complementerSecondaryMask -

defaults - the default line to use instead of missing elements if a left tuple has no match

Method Detail

calibrate

public Tuple calibrate(Tuple primary,
                       Tuple secondary)

Description copied from class: DualInputNode

Simulates the behaviour of the node for calibration purposes only.

Specified by:

calibrate in class DualInputNode

notifyUpdate

public void notifyUpdate(DualInputNode.Side side,
                         Direction direction,
                         Tuple updateElement,
                         Tuple signature,
                         boolean change)

Description copied from class: DualInputNode

Abstract handler for update event.

Specified by:

notifyUpdate in class DualInputNode

Parameters:

side - The side on which the event occured.

direction - The direction of the update.

updateElement - The partial matching that is inserted.

signature - Masked signature of updateElement.

change - Indicates whether this is/was the first/last instance of this signature in this slot.

pullInto

public void pullInto(java.util.Collection<Tuple> collector)

Description copied from interface: Supplier

pulls the contents of this object in this particular moment into a target collection