org.eclipse.incquery.runtime.rete.network

Interface Supplier

All Superinterfaces:

Node

All Known Subinterfaces:

Production, Tunnel

All Known Implementing Classes:

AbstractEvaluatorNode, AggregatorNode, CachedFunctionEvaluatorNode, CachedPredicateEvaluatorNode, ConstantNode, CountNode, DefaultProductionNode, DualInputNode, EClassUnaryInputNode, EqualityFilterNode, EStructuralFeatureBinaryInputNode, ExistenceNode, ExternalInputEnumeratorNode, ExternalInputStatelessFilterNode, FilterNode, InequalityFilterNode, JoinNode, MemorylessEvaluatorNode, OuterJoinNode, OutputCachingEvaluatorNode, RemoteReceiver, RemoteSupplier, RetePatternMatcher, SingleInputNode, StandardNode, TransformerNode, TransitiveClosureNode, TransparentNode, TrimmerNode, UniquenessEnforcerNode, ValueBinderFilterNode

public interface Supplier
extends Node

Author:

Gabor Bergmann A supplier is an object that can propagate insert or revoke events towards receivers.

Method Summary

Modifier and Type	Method and Description
void	appendChild(Receiver receiver) appends a receiver that will continously receive insert and revoke updates from this supplier
ProjectionIndexer	constructIndex(TupleMask mask, TraceInfo... traces) Instantiates (or reuses, depending on implementation) an index according to the given mask.
java.util.Set<Tuple>	getPulledContents() Returns the contents of this object in this particular moment.
java.util.Collection<Receiver>	getReceivers() lists receivers
void	pullInto(java.util.Collection<Tuple> collector) pulls the contents of this object in this particular moment into a target collection
void	removeChild(Receiver receiver) removes a receiver

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

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

Method Detail

pullInto

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

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

getPulledContents

java.util.Set<Tuple> getPulledContents()

Returns the contents of this object in this particular moment. For memoryless nodes, this may involve a costly recomputation of contents.

Intended mainly for debug purposes, therefore does not do flushing. During runtime, flushing may be preferred; see ReteContainer.pullContents(Supplier)

appendChild

void appendChild(Receiver receiver)

appends a receiver that will continously receive insert and revoke updates from this supplier

removeChild

void removeChild(Receiver receiver)

removes a receiver

constructIndex

ProjectionIndexer constructIndex(TupleMask mask,
                                 TraceInfo... traces)

Instantiates (or reuses, depending on implementation) an index according to the given mask. Intended for internal use; clients should invoke through Library instead to enable reusing.

getReceivers

java.util.Collection<Receiver> getReceivers()

lists receivers