org.eclipse.incquery.runtime.rete.index

Class DualInputNode

java.lang.Object

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

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

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

All Implemented Interfaces:

Node, Supplier

Direct Known Subclasses:

ExistenceNode, JoinNode, OuterJoinNode

public abstract class DualInputNode
extends StandardNode

Abstract superclass for nodes with two inputs that are matched against each other.

Author:

Gabor Bergmann

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DualInputNode.Side

Constructor Summary

Constructors

Constructor and Description
DualInputNode(ReteContainer reteContainer, TupleMask complementerSecondaryMask)

Method Summary

Modifier and Type	Method and Description
void	assignTraceInfo(TraceInfo traceInfo) assigns new traceability info to this node
abstract Tuple	calibrate(Tuple primary, Tuple secondary) Simulates the behaviour of the node for calibration purposes only.
void	connectToIndexers(IterableIndexer primarySlot, Indexer secondarySlot) Should be called only once, when node is initialized
IterableIndexer	getPrimarySlot()
Indexer	getSecondarySlot()
abstract void	notifyUpdate(DualInputNode.Side side, Direction direction, Tuple updateElement, Tuple signature, boolean change) Abstract handler for update event.
void	setComplementerSecondaryMask(TupleMask complementerSecondaryMask)

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.Supplier

pullInto

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

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag

Constructor Detail

DualInputNode

public DualInputNode(ReteContainer reteContainer,
                     TupleMask complementerSecondaryMask)

Parameters:

reteContainer -

Method Detail

getPrimarySlot

public IterableIndexer getPrimarySlot()

getSecondarySlot

public Indexer getSecondarySlot()

connectToIndexers

public void connectToIndexers(IterableIndexer primarySlot,
                              Indexer secondarySlot)

Should be called only once, when node is initialized

notifyUpdate

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

Abstract handler for update event.

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.

calibrate

public abstract Tuple calibrate(Tuple primary,
                                Tuple secondary)

Simulates the behaviour of the node for calibration purposes only.

setComplementerSecondaryMask

public void setComplementerSecondaryMask(TupleMask complementerSecondaryMask)

Parameters:

complementerSecondaryMask - the complementerSecondaryMask to set

assignTraceInfo

public void assignTraceInfo(TraceInfo traceInfo)

Description copied from interface: Node

assigns new traceability info to this node

Specified by:

assignTraceInfo in interface Node

Overrides:

assignTraceInfo in class BaseNode