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:

Externalizable, Serializable, MemoryFactory<LeftInputAdapterNode.LiaNodeMemory>, NetworkNode, 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 and Description
static class	LeftInputAdapterNode.LiaNodeMemory
static class	LeftInputAdapterNode.RightTupleSinkAdapter Used with the updateSink method, so that the parent ObjectSource can update the TupleSink

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	log
protected 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, partitionsEnabled

Constructor Summary

Constructors

Constructor and 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 and Description
void	assertObject(InternalFactHandle factHandle, PropagationContext context, InternalWorkingMemory workingMemory)
void	byPassModifyToBetaNode(InternalFactHandle factHandle, ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, InternalWorkingMemory workingMemory)
LeftInputAdapterNode.LiaNodeMemory	createMemory(RuleBaseConfiguration config, InternalWorkingMemory wm)
LeftTuple	createPeer(LeftTuple original)
void	doAttach(BuildContext context)
static void	doDeleteObject(LeftTuple leftTuple, PropagationContext context, SegmentMemory sm, InternalWorkingMemory wm, LeftInputAdapterNode liaNode, boolean linkOrNotify, LeftInputAdapterNode.LiaNodeMemory lm)
static void	doInsertObject(InternalFactHandle factHandle, PropagationContext context, LeftInputAdapterNode liaNode, InternalWorkingMemory wm, LeftInputAdapterNode.LiaNodeMemory lm, boolean linkOrNotify, boolean useLeftMemory)
static void	doInsertSegmentMemory(InternalWorkingMemory wm, boolean linkOrNotify, LeftInputAdapterNode.LiaNodeMemory lm, SegmentMemory sm, LeftTuple leftTuple, boolean streamMode)
protected boolean	doRemove(RuleRemovalContext context, ReteooBuilder builder) Removes the node from the network.
static void	doUpdateObject(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory wm, 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
short	getType()
boolean	isLeftTupleMemoryEnabled()
boolean	isTerminal()
void	modifyObject(InternalFactHandle factHandle, ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, InternalWorkingMemory workingMemory)
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 LeftTuple	processDeletesFromModify(ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, InternalWorkingMemory workingMemory, ObjectTypeNode.Id otnId)
void	readExternal(ObjectInput in)
void	retractLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory)
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)
void	writeExternal(ObjectOutput out)

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

addTupleSink, addTupleSink, addTupleSink, 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

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

Methods inherited from class java.lang.Object

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

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

setPartitionIdWithSinks

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

getAssociatedRuleSize, getAssociationsSize, getAssociationsSize, getId, getPartitionId, isAssociatedWith

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

getMemoryId

Field Detail

log

protected static final transient org.slf4j.Logger log

sinkMask

protected BitMask sinkMask

Constructor Detail

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 Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class LeftTupleSource

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class LeftTupleSource

Throws:

IOException

getObjectSource

public ObjectSource getObjectSource()

getType

public short 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,
                         InternalWorkingMemory workingMemory)

Specified by:

assertObject in interface ObjectSink

doInsertObject

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

doInsertSegmentMemory

public static void doInsertSegmentMemory(InternalWorkingMemory wm,
                                         boolean linkOrNotify,
                                         LeftInputAdapterNode.LiaNodeMemory lm,
                                         SegmentMemory sm,
                                         LeftTuple leftTuple,
                                         boolean streamMode)

doDeleteObject

public static void doDeleteObject(LeftTuple leftTuple,
                                  PropagationContext context,
                                  SegmentMemory sm,
                                  InternalWorkingMemory wm,
                                  LeftInputAdapterNode liaNode,
                                  boolean linkOrNotify,
                                  LeftInputAdapterNode.LiaNodeMemory lm)

doUpdateObject

public static void doUpdateObject(LeftTuple leftTuple,
                                  PropagationContext context,
                                  InternalWorkingMemory wm,
                                  LeftInputAdapterNode liaNode,
                                  boolean linkOrNotify,
                                  LeftInputAdapterNode.LiaNodeMemory lm,
                                  SegmentMemory sm)

retractLeftTuple

public void retractLeftTuple(LeftTuple leftTuple,
                             PropagationContext context,
                             InternalWorkingMemory workingMemory)

modifyObject

public void modifyObject(InternalFactHandle factHandle,
                         ModifyPreviousTuples modifyPreviousTuples,
                         PropagationContext context,
                         InternalWorkingMemory workingMemory)

Specified by:

modifyObject in interface ObjectSink

processDeletesFromModify

protected LeftTuple processDeletesFromModify(ModifyPreviousTuples modifyPreviousTuples,
                                             PropagationContext context,
                                             InternalWorkingMemory workingMemory,
                                             ObjectTypeNode.Id otnId)

byPassModifyToBetaNode

public void byPassModifyToBetaNode(InternalFactHandle factHandle,
                                   ModifyPreviousTuples modifyPreviousTuples,
                                   PropagationContext context,
                                   InternalWorkingMemory workingMemory)

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(LeftTuple original)

Specified by:

createPeer in class LeftTupleSource

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,
                                                       InternalWorkingMemory wm)

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()