org.eclipse.viatra.query.runtime.rete.boundary

Class ExternalInputStatelessFilterNode

java.lang.Object

org.eclipse.viatra.query.runtime.rete.network.BaseNode

org.eclipse.viatra.query.runtime.rete.network.StandardNode

org.eclipse.viatra.query.runtime.rete.single.SingleInputNode

org.eclipse.viatra.query.runtime.rete.single.FilterNode

org.eclipse.viatra.query.runtime.rete.boundary.ExternalInputStatelessFilterNode

All Implemented Interfaces:

Disconnectable, Node, Receiver, Supplier, Tunnel

public class ExternalInputStatelessFilterNode
extends FilterNode
implements Disconnectable

A filter node representing a (stateless, typically non-enumerable) extensional input relation.

Contains those tuples of its parents, that (when transformed by a mask, if given) are present in the extensional relation identified by the input key.

Field Summary

Fields inherited from class org.eclipse.viatra.query.runtime.rete.single.SingleInputNode

mailbox, parent

Fields inherited from class org.eclipse.viatra.query.runtime.rete.network.StandardNode

children

Fields inherited from class org.eclipse.viatra.query.runtime.rete.network.BaseNode

nodeId, reteContainer, tag, traceInfos

Constructor Summary

Constructors

Constructor and Description
ExternalInputStatelessFilterNode(ReteContainer reteContainer, TupleMask mask)

Method Summary

Modifier and Type	Method and Description
boolean	check(Tuple ps) Abstract filtering predicate.
void	connectThroughContext(ReteEngine engine, IInputKey inputKey)
void	disconnect() Disconnects this rete engine component from the underlying model.

Methods inherited from class org.eclipse.viatra.query.runtime.rete.single.FilterNode

pullInto, update

Methods inherited from class org.eclipse.viatra.query.runtime.rete.single.SingleInputNode

appendParent, assignTraceInfo, getMailbox, getParents, instantiateMailbox, propagatePullInto, removeParent

Methods inherited from class org.eclipse.viatra.query.runtime.rete.network.StandardNode

appendChild, constructIndex, getPulledContents, getReceivers, issueError, propagateUpdate, removeChild

Methods inherited from class org.eclipse.viatra.query.runtime.rete.network.BaseNode

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.viatra.query.runtime.rete.network.Supplier

appendChild, constructIndex, getPulledContents, getReceivers, removeChild

Methods inherited from interface org.eclipse.viatra.query.runtime.rete.network.Node

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag

Constructor Detail

ExternalInputStatelessFilterNode

public ExternalInputStatelessFilterNode(ReteContainer reteContainer,
                                        TupleMask mask)

Method Detail

check

public boolean check(Tuple ps)

Description copied from class: FilterNode

Abstract filtering predicate. Expected to be stateless.

Specified by:

check in class FilterNode

Parameters:

ps - the matching to be checked.

Returns:

true if and only if the parameter matching is allowed to pass through this node.

connectThroughContext

public void connectThroughContext(ReteEngine engine,
                                  IInputKey inputKey)

disconnect

public void disconnect()

Description copied from interface: Disconnectable

Disconnects this rete engine component from the underlying model. Disconnecting enables the garbage collection mechanisms to dispose of the rete network.

Specified by:

disconnect in interface Disconnectable