org.drools.core.reteoo

Class LeftTupleSource

java.lang.Object

org.drools.core.common.BaseNode

org.drools.core.reteoo.LeftTupleSource

All Implemented Interfaces:

Externalizable, Serializable, NetworkNode, LeftTupleNode

Direct Known Subclasses:

AsyncReceiveNode, AsyncSendNode, BetaNode, ConditionalBranchNode, EvalConditionNode, FromNode, LeftInputAdapterNode, QueryElementNode, TimerNode

public abstract class LeftTupleSource
extends BaseNode
implements LeftTupleNode, Externalizable

A source of ReteTuple s for a TupleSink.

Nodes that propagate Tuples extend this class.

See Also:

LeftTupleSource, LeftTuple, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected BitMask	leftDeclaredMask
protected BitMask	leftInferredMask
protected LeftTupleSource	leftInput The left input TupleSource.
protected BitMask	leftNegativeMask
protected LeftTupleSinkPropagator	sink The destination for Tuples.

Fields inherited from class org.drools.core.common.BaseNode

associations, hashcode, id, memoryId, partitionId, partitionsEnabled

Constructor Summary

Constructors

Modifier	Constructor and Description
	LeftTupleSource()
protected	LeftTupleSource(int id, BuildContext context) Single parameter constructor that specifies the unique id of the node.

Method Summary

Modifier and Type	Method and Description
void	addTupleSink(LeftTupleSink tupleSink)
void	addTupleSink(LeftTupleSink tupleSink, BuildContext context) Adds the TupleSink so that it may receive Tuples propagated from this TupleSource.
protected LeftTupleSinkPropagator	addTupleSink(LeftTupleSinkPropagator sinkPropagator, LeftTupleSink tupleSink, BuildContext context)
abstract LeftTuple	createPeer(LeftTuple original)
BitMask	getLeftDeclaredMask()
BitMask	getLeftInferredMask()
ObjectTypeNode.Id	getLeftInputOtnId()
protected Pattern	getLeftInputPattern(BuildContext context)
BitMask	getLeftNegativeMask()
LeftTupleSource	getLeftTupleSource()
ObjectType	getObjectType()
protected ObjectType	getObjectTypeForPropertyReactivity(LeftInputAdapterNode leftInput, Pattern pattern)
int	getPositionInPath()
LeftTupleSinkPropagator	getSinkPropagator()
abstract short	getType()
protected void	initDeclaredMask(BuildContext context, LeftTupleSource leftInput)
protected void	initInferredMask(LeftTupleSource leftInput)
protected void	initMasks(BuildContext context, LeftTupleSource leftInput)
boolean	isInUse() Returns true in case the current node is in use (is referenced by any other node)
abstract boolean	isLeftTupleMemoryEnabled()
void	readExternal(ObjectInput in)
void	removeTupleSink(LeftTupleSink tupleSink) Removes the TupleSink
protected void	setLeftInferredMask(BitMask leftInferredMask)
void	setLeftInputOtnId(ObjectTypeNode.Id leftInputOtnId)
protected void	setLeftListenedProperties(Collection<String> leftListenedProperties)
void	setLeftTupleSource(LeftTupleSource leftInput)
protected BitMask	setNodeConstraintsPropertyReactiveMask(BitMask mask, Class objectClass, List<String> accessibleProperties)
void	setPartitionIdWithSinks(RuleBasePartitionId partitionId)
protected void	setSourcePartitionId(BaseNode source, BuildContext context, RuleBasePartitionId partitionId)
void	setSourcePartitionId(BuildContext context, RuleBasePartitionId partitionId)
void	writeExternal(ObjectOutput out)

Methods inherited from class org.drools.core.common.BaseNode

addAssociation, addAssociation, attach, doRemove, getAssociatedRules, getAssociatedRuleSize, getAssociationsSize, getAssociationsSize, getId, getMemoryId, getObjectTypeNode, getPartitionId, getSinks, hashCode, initMemoryId, isAssociatedWith, isStreamMode, networkUpdated, remove, removeAssociation, setId, setPartitionId, setPartitionsEnabled, setStreamMode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.drools.core.common.NetworkNode

getAssociatedRuleSize, getAssociationsSize, getAssociationsSize, getId, getPartitionId, isAssociatedWith

Field Detail

leftDeclaredMask

protected BitMask leftDeclaredMask

leftInferredMask

protected BitMask leftInferredMask

leftNegativeMask

protected BitMask leftNegativeMask

leftInput

protected LeftTupleSource leftInput

The left input TupleSource.

sink

protected LeftTupleSinkPropagator sink

The destination for Tuples.

Constructor Detail

LeftTupleSource

public LeftTupleSource()

LeftTupleSource

protected LeftTupleSource(int id,
                          BuildContext context)

Single parameter constructor that specifies the unique id of the node.

Parameters:

id -

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class BaseNode

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class BaseNode

Throws:

IOException

getPositionInPath

public int getPositionInPath()

Specified by:

getPositionInPath in interface LeftTupleNode

getType

public abstract short getType()

Specified by:

getType in interface NetworkNode

createPeer

public abstract LeftTuple createPeer(LeftTuple original)

addTupleSink

public void addTupleSink(LeftTupleSink tupleSink)

getLeftTupleSource

public LeftTupleSource getLeftTupleSource()

Specified by:

getLeftTupleSource in interface LeftTupleNode

setLeftTupleSource

public final void setLeftTupleSource(LeftTupleSource leftInput)

addTupleSink

public void addTupleSink(LeftTupleSink tupleSink,
                         BuildContext context)

Adds the TupleSink so that it may receive Tuples propagated from this TupleSource.

Parameters:

tupleSink - The TupleSink to receive propagated Tuples.

addTupleSink

protected LeftTupleSinkPropagator addTupleSink(LeftTupleSinkPropagator sinkPropagator,
                                               LeftTupleSink tupleSink,
                                               BuildContext context)

removeTupleSink

public void removeTupleSink(LeftTupleSink tupleSink)

Removes the TupleSink

Parameters:

tupleSink - The TupleSink to remove

getSinkPropagator

public LeftTupleSinkPropagator getSinkPropagator()

Specified by:

getSinkPropagator in interface LeftTupleNode

setSourcePartitionId

public void setSourcePartitionId(BuildContext context,
                                 RuleBasePartitionId partitionId)

setSourcePartitionId

protected void setSourcePartitionId(BaseNode source,
                                    BuildContext context,
                                    RuleBasePartitionId partitionId)

setPartitionIdWithSinks

public final void setPartitionIdWithSinks(RuleBasePartitionId partitionId)

isInUse

public boolean isInUse()

Description copied from class: BaseNode

Returns true in case the current node is in use (is referenced by any other node)

Specified by:

isInUse in class BaseNode

initMasks

protected final void initMasks(BuildContext context,
                               LeftTupleSource leftInput)

initDeclaredMask

protected void initDeclaredMask(BuildContext context,
                                LeftTupleSource leftInput)

setNodeConstraintsPropertyReactiveMask

protected BitMask setNodeConstraintsPropertyReactiveMask(BitMask mask,
                                                         Class objectClass,
                                                         List<String> accessibleProperties)

getLeftInputPattern

protected Pattern getLeftInputPattern(BuildContext context)

getObjectTypeForPropertyReactivity

protected ObjectType getObjectTypeForPropertyReactivity(LeftInputAdapterNode leftInput,
                                                        Pattern pattern)

setLeftListenedProperties

protected void setLeftListenedProperties(Collection<String> leftListenedProperties)

initInferredMask

protected void initInferredMask(LeftTupleSource leftInput)

getLeftDeclaredMask

public BitMask getLeftDeclaredMask()

getLeftInferredMask

public BitMask getLeftInferredMask()

setLeftInferredMask

protected void setLeftInferredMask(BitMask leftInferredMask)

getLeftNegativeMask

public BitMask getLeftNegativeMask()

getLeftInputOtnId

public ObjectTypeNode.Id getLeftInputOtnId()

setLeftInputOtnId

public void setLeftInputOtnId(ObjectTypeNode.Id leftInputOtnId)

getObjectType

public ObjectType getObjectType()

isLeftTupleMemoryEnabled

public abstract boolean isLeftTupleMemoryEnabled()