Package tools.refinery.interpreter.rete.index

Class GenericProjectionIndexer

java.lang.Object

tools.refinery.interpreter.rete.network.BaseNode

tools.refinery.interpreter.rete.index.StandardIndexer

tools.refinery.interpreter.rete.index.IndexerWithMemory

tools.refinery.interpreter.rete.index.GenericProjectionIndexer

All Implemented Interfaces:

Iterable<Tuple>, Indexer, IterableIndexer, ProjectionIndexer, ResumableNode, IGroupable, NetworkStructureChangeSensitiveNode, Node, Receiver

Direct Known Subclasses:

OnetimeIndexer

public class GenericProjectionIndexer
extends IndexerWithMemory
implements ProjectionIndexer

A generic Indexer capable of indexing along any valid TupleMask. Does not keep track of parents, because will not ever pull parents.

Nested Class Summary

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

IndexerWithMemory.NetworkStructureChangeSensitiveLogic

Field Summary

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

group, logic, mailbox, memory

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
GenericProjectionIndexer(ReteContainer reteContainer, TupleMask mask)

Method Summary

Modifier and Type	Method	Description
Collection<Tuple>	get(Tuple signature)
Receiver	getActiveNode()	This indexer will be updated whenever a Rete update is sent to the active node (or an equivalent time slot allotted to it).
int	getBucketCount()
Iterable<Tuple>	getSignatures()	A view consisting of exactly those signatures whose tuple group is not empty
Map<Tuple,Timeline<Timestamp>>	getTimeline(Tuple signature)
Iterator<Tuple>	iterator()
protected void	update(Direction direction, Tuple updateElement, Tuple signature, boolean change, Timestamp timestamp)	Refined version of update

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

appendParent, createLogic, getCurrentGroup, getMailbox, getMemory, getParents, getResumableTimestamp, instantiateMailbox, networkStructureChanged, removeParent, resumeAt, setCurrentGroup, update

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

assignTraceInfo, attachListener, detachListener, getContainer, getListeners, getMask, getParent, propagate, 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

attachListener, detachListener, getListeners, getMask, getParent

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

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

batchUpdate

Constructor Details

GenericProjectionIndexer

public GenericProjectionIndexer(ReteContainer reteContainer,
 TupleMask mask)

Method Details

update

protected void update(Direction direction,
 Tuple updateElement,
 Tuple signature,
 boolean change,
 Timestamp timestamp)

Description copied from class: IndexerWithMemory

Refined version of update

Specified by:

update in class IndexerWithMemory

get

public Collection<Tuple> get(Tuple signature)

Specified by:

get in interface Indexer

Returns:

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

getTimeline

public Map<Tuple,Timeline<Timestamp>> getTimeline(Tuple signature)

Specified by:

getTimeline in interface Indexer

iterator

public Iterator<Tuple> iterator()

Specified by:

iterator in interface Iterable<Tuple>

getSignatures

public Iterable<Tuple> getSignatures()

Description copied from interface: IterableIndexer

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

Specified by:

getSignatures in interface IterableIndexer

getBucketCount

public int getBucketCount()

Specified by:

getBucketCount in interface IterableIndexer

Returns:

the number of signatures whose tuple group is not empty

Since:

2.0

getActiveNode

public Receiver getActiveNode()

Description copied from interface: Indexer

This indexer will be updated whenever a Rete update is sent to the active node (or an equivalent time slot allotted to it). The active node is typically the indexer itself, but it can be a different node such as its parent.

Specified by:

getActiveNode in interface Indexer

Returns:

the active node that operates this indexer