Package tools.refinery.interpreter.rete.index

Class IdentityIndexer

java.lang.Object

tools.refinery.interpreter.rete.network.BaseNode

tools.refinery.interpreter.rete.index.StandardIndexer

tools.refinery.interpreter.rete.index.SpecializedProjectionIndexer

tools.refinery.interpreter.rete.index.IdentityIndexer

All Implemented Interfaces:

Iterable<Tuple>, Indexer, IterableIndexer, ProjectionIndexer, NetworkStructureChangeSensitiveNode, Node

Direct Known Subclasses:

MemoryIdentityIndexer, TimelyMemoryIdentityIndexer

public abstract class IdentityIndexer
extends SpecializedProjectionIndexer

Defines an abstract trivial indexer that identically projects the contents of some stateful node, and can therefore save space. Can only exist in connection with a stateful store, and must be operated by another node (the active node). Do not attach parents directly!

Nested Class Summary

Nested classes/interfaces inherited from class tools.refinery.interpreter.rete.index.SpecializedProjectionIndexer

SpecializedProjectionIndexer.ListenerSubscription

Field Summary

Fields inherited from class tools.refinery.interpreter.rete.index.SpecializedProjectionIndexer

activeNode, subscriptions

Fields inherited from class tools.refinery.interpreter.rete.index.StandardIndexer

mask, parent

Fields inherited from class tools.refinery.interpreter.rete.network.BaseNode

nodeId, reteContainer, tag, traceInfos

Constructor Summary

Constructors

Constructor	Description
IdentityIndexer(ReteContainer reteContainer, int tupleWidth, Supplier parent, Node activeNode, List<SpecializedProjectionIndexer.ListenerSubscription> sharedSubscriptionList)

Method Summary

Modifier and Type	Method	Description
protected boolean	contains(Tuple signature)
Collection<Tuple>	get(Tuple signature)
int	getBucketCount()
Collection<Tuple>	getSignatures()	A view consisting of exactly those signatures whose tuple group is not empty
protected abstract Collection<Tuple>	getTuples()
Iterator<Tuple>	iterator()
void	propagateToListener(IndexerListener listener, Direction direction, Tuple updateElement, Timestamp timestamp)

Methods inherited from class tools.refinery.interpreter.rete.index.SpecializedProjectionIndexer

attachListener, detachListener, getActiveNode, getSubscriptions, networkStructureChanged, propagate

Methods inherited from class tools.refinery.interpreter.rete.index.StandardIndexer

assignTraceInfo, getContainer, getListeners, getMask, getParent, toStringCore

Methods inherited from class tools.refinery.interpreter.rete.network.BaseNode

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface tools.refinery.interpreter.rete.index.Indexer

getListeners, getMask, getParent, getTimeline

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface tools.refinery.interpreter.rete.network.Node

acceptPropagatedTraceInfo, assignTraceInfo, getCommunicationTracker, getContainer, getNodeId, getTag, getTraceInfos, setTag

Constructor Details

IdentityIndexer

public IdentityIndexer(ReteContainer reteContainer,
 int tupleWidth,
 Supplier parent,
 Node activeNode,
 List<SpecializedProjectionIndexer.ListenerSubscription> sharedSubscriptionList)

Method Details

getTuples

protected abstract Collection<Tuple> getTuples()

get

public Collection<Tuple> get(Tuple signature)

Returns:

all stored tuples that conform to the specified signature, null if there are none such. CONTRACT: do not modify!

contains

protected boolean contains(Tuple signature)

getSignatures

public Collection<Tuple> getSignatures()

Description copied from interface: IterableIndexer

A view consisting of exactly those signatures whose tuple group is not empty

getBucketCount

public int getBucketCount()

Returns:

the number of signatures whose tuple group is not empty

iterator

public Iterator<Tuple> iterator()

propagateToListener

public void propagateToListener(IndexerListener listener,
 Direction direction,
 Tuple updateElement,
 Timestamp timestamp)

Specified by:

propagateToListener in class SpecializedProjectionIndexer