org.eclipse.viatra.query.runtime.rete.index

Class StandardIndexer

java.lang.Object

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

org.eclipse.viatra.query.runtime.rete.index.StandardIndexer

All Implemented Interfaces:

Indexer, Node

Direct Known Subclasses:

IndexerWithMemory, SpecializedProjectionIndexer, TransitiveClosureNodeIndexer

public abstract class StandardIndexer
extends BaseNode
implements Indexer

An abstract standard implementation of the Indexer interface, providing common bookkeeping functionality.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.List<IndexerListener>	listeners
protected TupleMask	mask
protected Supplier	parent

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

nodeId, reteContainer, tag, traceInfos

Constructor Summary

Constructors

Constructor and Description
StandardIndexer(ReteContainer reteContainer, TupleMask mask)

Method Summary

Modifier and Type	Method and Description
void	assignTraceInfo(TraceInfo traceInfo) assigns new traceability info to this node
void	attachListener(IndexerListener listener)
void	detachListener(IndexerListener listener)
ReteContainer	getContainer()
java.util.Collection<IndexerListener>	getListeners()
TupleMask	getMask()
Supplier	getParent()
protected void	propagate(Direction direction, Tuple updateElement, Tuple signature, boolean change)
protected java.lang.String	toStringCore() clients should override this to append before the tag / trace indicators

Methods inherited from class org.eclipse.viatra.query.runtime.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 org.eclipse.viatra.query.runtime.rete.index.Indexer

get, getActiveNode

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

acceptPropagatedTraceInfo, getNodeId, getTag, getTraceInfos, setTag

Field Detail

parent

protected Supplier parent

listeners

protected java.util.List<IndexerListener> listeners

mask

protected TupleMask mask

Constructor Detail

StandardIndexer

public StandardIndexer(ReteContainer reteContainer,
                       TupleMask mask)

Method Detail

propagate

protected void propagate(Direction direction,
                         Tuple updateElement,
                         Tuple signature,
                         boolean change)

getMask

public TupleMask getMask()

Specified by:

getMask in interface Indexer

Returns:

the mask

getParent

public Supplier getParent()

Specified by:

getParent in interface Indexer

Returns:

the node whose contents are indexed.

attachListener

public void attachListener(IndexerListener listener)

Specified by:

attachListener in interface Indexer

detachListener

public void detachListener(IndexerListener listener)

Specified by:

detachListener in interface Indexer

getListeners

public java.util.Collection<IndexerListener> getListeners()

Specified by:

getListeners in interface Indexer

getContainer

public ReteContainer getContainer()

Specified by:

getContainer in interface Node

Overrides:

getContainer in class BaseNode

Returns:

the network this node belongs to.

toStringCore

protected java.lang.String toStringCore()

Description copied from class: BaseNode

clients should override this to append before the tag / trace indicators

Overrides:

toStringCore in class BaseNode

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