Package org.drools.core.reteoo

Class LeftInputAdapterNode

java.lang.Object

org.drools.core.common.BaseNode

org.drools.core.reteoo.LeftTupleSource

org.drools.core.reteoo.LeftInputAdapterNode

All Implemented Interfaces:

Serializable, NetworkNode, MemoryFactory<LeftInputAdapterNode.LiaNodeMemory>, LeftTupleNode, ObjectSink, ObjectSinkNode, Sink

Direct Known Subclasses:

AlphaTerminalNode

public class LeftInputAdapterNode
extends LeftTupleSource
implements ObjectSinkNode, MemoryFactory<LeftInputAdapterNode.LiaNodeMemory>

All asserting Facts must propagated into the right ObjectSink side of a BetaNode, if this is the first Pattern then there are no BetaNodes to propagate to. LeftInputAdapter is used to adapt an ObjectSink propagation into a TupleSource which propagates a ReteTuple suitable fot the right ReteTuple side of a BetaNode.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LeftInputAdapterNode.LeftTupleSinkAdapter	Used with the updateSink method, so that the parent ObjectSource can update the TupleSink
static class	LeftInputAdapterNode.LiaNodeMemory

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.slf4j.Logger	log
protected org.drools.util.bitmask.BitMask	sinkMask

Fields inherited from class org.drools.core.reteoo.LeftTupleSource

leftDeclaredMask, leftInferredMask, leftInput, leftNegativeMask, sink

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

associations, hashcode, id, memoryId, partitionId

Constructor Summary

Constructors

Constructor	Description
LeftInputAdapterNode()
LeftInputAdapterNode(int id, ObjectSource source, BuildContext context)	Constructus a LeftInputAdapterNode with a unique id that receives FactHandle from a parent ObjectSource and adds it to a given pattern in the resulting Tuples.

Method Summary

Modifier and Type	Method	Description
void	assertObject(InternalFactHandle factHandle, PropagationContext context, ReteEvaluator reteEvaluator)
void	byPassModifyToBetaNode(InternalFactHandle factHandle, ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, ReteEvaluator reteEvaluator)
LeftInputAdapterNode.LiaNodeMemory	createMemory(RuleBaseConfiguration config, ReteEvaluator reteEvaluator)
LeftTuple	createPeer(TupleImpl original)
void	doAttach(BuildContext context)
static void	doDeleteObject(TupleImpl leftTuple, PropagationContext context, SegmentMemory sm, ReteEvaluator reteEvaluator, LeftInputAdapterNode liaNode, boolean linkOrNotify, LeftInputAdapterNode.LiaNodeMemory lm)
static void	doInsertObject(InternalFactHandle factHandle, PropagationContext context, LeftInputAdapterNode liaNode, ReteEvaluator reteEvaluator, LeftInputAdapterNode.LiaNodeMemory lm, boolean linkOrNotify, boolean useLeftMemory)
static List<PathMemory>	doInsertSegmentMemory(ReteEvaluator reteEvaluator, boolean linkOrNotify, LeftInputAdapterNode.LiaNodeMemory lm, SegmentMemory sm, TupleImpl leftTuple, boolean streamMode)
static void	doInsertSegmentMemoryWithFlush(ReteEvaluator reteEvaluator, boolean notifySegment, LeftInputAdapterNode.LiaNodeMemory lm, SegmentMemory sm, TupleImpl leftTuple, boolean streamMode)
protected boolean	doRemove(RuleRemovalContext context, ReteooBuilder builder)	Removes the node from the network.
static void	doUpdateObject(TupleImpl leftTuple, PropagationContext context, ReteEvaluator reteEvaluator, LeftInputAdapterNode liaNode, boolean linkOrNotify, LeftInputAdapterNode.LiaNodeMemory lm, SegmentMemory sm)
boolean	equals(Object object)
ObjectSinkNode	getNextObjectSinkNode()	Returns the next node
ObjectSource	getObjectSource()
ObjectTypeNode	getObjectTypeNode()
ObjectSource	getParentObjectSource()
ObjectSinkNode	getPreviousObjectSinkNode()	Returns the previous node
int	getType()
boolean	isLeftTupleMemoryEnabled()
boolean	isTerminal()
void	modifyObject(InternalFactHandle factHandle, ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, ReteEvaluator reteEvaluator)
void	networkUpdated(UpdateContext updateContext)	A method that is called for all nodes whose network below them changed, after the change is complete, providing them with an opportunity for state update
protected TupleImpl	processDeletesFromModify(ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, ReteEvaluator reteEvaluator, ObjectTypeNodeId otnId)
void	retractLeftTuple(TupleImpl leftTuple, PropagationContext context, ReteEvaluator reteEvaluator)
void	setNextObjectSinkNode(ObjectSinkNode next)	Sets the next node
void	setPartitionId(BuildContext context, RuleBasePartitionId partitionId)	Sets the partition this node belongs to
void	setPreviousObjectSinkNode(ObjectSinkNode previous)	Sets the previous node
void	setSourcePartitionId(BuildContext context, RuleBasePartitionId partitionId)

Methods inherited from class org.drools.core.reteoo.LeftTupleSource

addTupleSink, addTupleSink, addTupleSink, getFirstLeftTupleSinkIgnoreRemoving, getLeftDeclaredMask, getLeftInferredMask, getLeftInputOtnId, getLeftInputPattern, getLeftNegativeMask, getLeftTupleSource, getObjectCount, getObjectType, getObjectTypeForPropertyReactivity, getPathIndex, getSinkPropagator, initDeclaredMask, initInferredMask, initMasks, isInUse, removeTupleSink, setLeftInferredMask, setLeftInputOtnId, setLeftListenedProperties, setLeftTupleSource, setNodeConstraintsPropertyReactiveMask, setObjectCount, setPartitionIdWithSinks, setSourcePartitionId

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

addAssociatedTerminal, addAssociation, addAssociation, attach, getAssociatedRules, getAssociatedTerminalsSize, getAssociationsSize, getId, getMemoryId, getPartitionId, getSinks, hasAssociatedTerminal, hashCode, initMemoryId, isAssociatedWith, isStreamMode, remove, removeAssociatedTerminal, removeAssociation, setId, setStreamMode, toString

Methods inherited from class java.lang.Object

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

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

getMemoryId

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

addAssociatedTerminal, getAssociatedRules, getAssociatedTerminalsSize, getId, getPartitionId, getSinks, hasAssociatedTerminal, isAssociatedWith, isRightInputIsRiaNode, removeAssociatedTerminal

Methods inherited from interface org.drools.core.reteoo.ObjectSinkNode

setPartitionIdWithSinks

Field Details

log

protected static final transient org.slf4j.Logger log

sinkMask

protected org.drools.util.bitmask.BitMask sinkMask

Constructor Details

LeftInputAdapterNode

public LeftInputAdapterNode()

LeftInputAdapterNode

public LeftInputAdapterNode(int id,
 ObjectSource source,
 BuildContext context)

Constructus a LeftInputAdapterNode with a unique id that receives FactHandle from a parent ObjectSource and adds it to a given pattern in the resulting Tuples.

Parameters:

id - The unique id of this node in the current Rete network

source - The parent node, where Facts are propagated from

Method Details

getObjectSource

public ObjectSource getObjectSource()

getType

public int getType()

Specified by:

getType in interface NetworkNode

Specified by:

getType in class LeftTupleSource

isLeftTupleMemoryEnabled

public boolean isLeftTupleMemoryEnabled()

Specified by:

isLeftTupleMemoryEnabled in class LeftTupleSource

getParentObjectSource

public ObjectSource getParentObjectSource()

doAttach

public void doAttach(BuildContext context)

Overrides:

doAttach in class BaseNode

networkUpdated

public void networkUpdated(UpdateContext updateContext)

Description copied from class: BaseNode

A method that is called for all nodes whose network below them changed, after the change is complete, providing them with an opportunity for state update

Specified by:

networkUpdated in class BaseNode

assertObject

public void assertObject(InternalFactHandle factHandle,
 PropagationContext context,
 ReteEvaluator reteEvaluator)

Specified by:

assertObject in interface ObjectSink

doInsertObject

public static void doInsertObject(InternalFactHandle factHandle,
 PropagationContext context,
 LeftInputAdapterNode liaNode,
 ReteEvaluator reteEvaluator,
 LeftInputAdapterNode.LiaNodeMemory lm,
 boolean linkOrNotify,
 boolean useLeftMemory)

doInsertSegmentMemoryWithFlush

public static void doInsertSegmentMemoryWithFlush(ReteEvaluator reteEvaluator,
 boolean notifySegment,
 LeftInputAdapterNode.LiaNodeMemory lm,
 SegmentMemory sm,
 TupleImpl leftTuple,
 boolean streamMode)

doInsertSegmentMemory

public static List<PathMemory> doInsertSegmentMemory(ReteEvaluator reteEvaluator,
 boolean linkOrNotify,
 LeftInputAdapterNode.LiaNodeMemory lm,
 SegmentMemory sm,
 TupleImpl leftTuple,
 boolean streamMode)

doDeleteObject

public static void doDeleteObject(TupleImpl leftTuple,
 PropagationContext context,
 SegmentMemory sm,
 ReteEvaluator reteEvaluator,
 LeftInputAdapterNode liaNode,
 boolean linkOrNotify,
 LeftInputAdapterNode.LiaNodeMemory lm)

doUpdateObject

public static void doUpdateObject(TupleImpl leftTuple,
 PropagationContext context,
 ReteEvaluator reteEvaluator,
 LeftInputAdapterNode liaNode,
 boolean linkOrNotify,
 LeftInputAdapterNode.LiaNodeMemory lm,
 SegmentMemory sm)

retractLeftTuple

public void retractLeftTuple(TupleImpl leftTuple,
 PropagationContext context,
 ReteEvaluator reteEvaluator)

modifyObject

public void modifyObject(InternalFactHandle factHandle,
 ModifyPreviousTuples modifyPreviousTuples,
 PropagationContext context,
 ReteEvaluator reteEvaluator)

Specified by:

modifyObject in interface ObjectSink

processDeletesFromModify

protected TupleImpl processDeletesFromModify(ModifyPreviousTuples modifyPreviousTuples,
 PropagationContext context,
 ReteEvaluator reteEvaluator,
 ObjectTypeNodeId otnId)

byPassModifyToBetaNode

public void byPassModifyToBetaNode(InternalFactHandle factHandle,
 ModifyPreviousTuples modifyPreviousTuples,
 PropagationContext context,
 ReteEvaluator reteEvaluator)

Specified by:

byPassModifyToBetaNode in interface ObjectSink

doRemove

protected boolean doRemove(RuleRemovalContext context,
 ReteooBuilder builder)

Description copied from class: BaseNode

Removes the node from the network. Usually from the parent ObjectSource or TupleSource

Specified by:

doRemove in class BaseNode

createPeer

public LeftTuple createPeer(TupleImpl original)

getNextObjectSinkNode

public ObjectSinkNode getNextObjectSinkNode()

Returns the next node

Specified by:

getNextObjectSinkNode in interface ObjectSinkNode

Returns:

The next ObjectSinkNode

setNextObjectSinkNode

public void setNextObjectSinkNode(ObjectSinkNode next)

Sets the next node

Specified by:

setNextObjectSinkNode in interface ObjectSinkNode

Parameters:

next - The next ObjectSinkNode

getPreviousObjectSinkNode

public ObjectSinkNode getPreviousObjectSinkNode()

Returns the previous node

Specified by:

getPreviousObjectSinkNode in interface ObjectSinkNode

Returns:

The previous ObjectSinkNode

setPreviousObjectSinkNode

public void setPreviousObjectSinkNode(ObjectSinkNode previous)

Sets the previous node

Specified by:

setPreviousObjectSinkNode in interface ObjectSinkNode

Parameters:

previous - The previous ObjectSinkNode

equals

public boolean equals(Object object)

Overrides:

equals in class Object

getObjectTypeNode

public ObjectTypeNode getObjectTypeNode()

Specified by:

getObjectTypeNode in class BaseNode

createMemory

public LeftInputAdapterNode.LiaNodeMemory createMemory(RuleBaseConfiguration config,
 ReteEvaluator reteEvaluator)

Specified by:

createMemory in interface MemoryFactory<LeftInputAdapterNode.LiaNodeMemory>

setSourcePartitionId

public void setSourcePartitionId(BuildContext context,
 RuleBasePartitionId partitionId)

Overrides:

setSourcePartitionId in class LeftTupleSource

setPartitionId

public void setPartitionId(BuildContext context,
 RuleBasePartitionId partitionId)

Description copied from class: BaseNode

Sets the partition this node belongs to

Overrides:

setPartitionId in class BaseNode

isTerminal

public boolean isTerminal()