Package org.drools.core.reteoo

Class FromNode<T extends FromNode.FromMemory>

java.lang.Object

org.drools.core.common.BaseNode

org.drools.core.reteoo.LeftTupleSource

org.drools.core.reteoo.FromNode<T>

All Implemented Interfaces:

Serializable, NetworkNode, MemoryFactory<T>, LeftTupleNode, LeftTupleSink, LeftTupleSinkNode, Sink

Direct Known Subclasses:

ReactiveFromNode

public class FromNode<T extends FromNode.FromMemory>
extends LeftTupleSource
implements LeftTupleSinkNode, MemoryFactory<T>

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FromNode.FromMemory

Field Summary

Fields

Modifier and Type	Field	Description
protected AlphaNodeFieldConstraint[]	alphaConstraints
protected BetaConstraints	betaConstraints
protected DataProvider	dataProvider
protected From	from
protected LeftTupleSinkNode	nextTupleSinkNode
protected ObjectTypeConf	objectTypeConf
protected LeftTupleSinkNode	previousTupleSinkNode
protected boolean	tupleMemoryEnabled

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
FromNode()
FromNode(int id, DataProvider dataProvider, LeftTupleSource tupleSource, AlphaNodeFieldConstraint[] constraints, BetaConstraints binder, boolean tupleMemoryEnabled, BuildContext context, From from)

Method Summary

Modifier and Type	Method	Description
void	addToCreatedHandlesMap(Map<Object,RightTuple> matches, RightTuple rightTuple)
InternalFactHandle	createFactHandle(ReteEvaluator reteEvaluator, Object object)
T	createMemory(RuleBaseConfiguration config, ReteEvaluator reteEvaluator)
RightTuple	createRightTuple(TupleImpl leftTuple, PropagationContext context, ReteEvaluator reteEvaluator, Object object)
void	doAttach(BuildContext context)
protected boolean	doRemove(RuleRemovalContext context, ReteooBuilder builder)	Removes the node from the network.
boolean	equals(Object object)
AlphaNodeFieldConstraint[]	getAlphaConstraints()
BetaConstraints	getBetaConstraints()
DataProvider	getDataProvider()
protected Pattern	getLeftInputPattern(BuildContext context)
LeftTupleSinkNode	getNextLeftTupleSinkNode()	Returns the next node
ObjectTypeNode	getObjectTypeNode()
LeftTupleSinkNode	getPreviousLeftTupleSinkNode()	Returns the previous node
Class<?>	getResultClass()
int	getType()
protected void	initDeclaredMask(BuildContext context, LeftTupleSource leftInput)
boolean	isLeftTupleMemoryEnabled()
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
void	setNextLeftTupleSinkNode(LeftTupleSinkNode next)	Sets the next node
protected org.drools.util.bitmask.BitMask	setNodeConstraintsPropertyReactiveMask(org.drools.util.bitmask.BitMask mask, ObjectType objectType, List<String> accessibleProperties)
void	setPreviousLeftTupleSinkNode(LeftTupleSinkNode previous)	Sets the previous node

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

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

getLeftTupleSource, getObjectCount, getPathIndex, getSinkPropagator, setObjectCount

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

getLeftInferredMask, getLeftInputOtnId, setLeftInputOtnId, setPartitionIdWithSinks

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

Field Details

dataProvider

protected DataProvider dataProvider

alphaConstraints

protected AlphaNodeFieldConstraint[] alphaConstraints

betaConstraints

protected BetaConstraints betaConstraints

previousTupleSinkNode

protected LeftTupleSinkNode previousTupleSinkNode

nextTupleSinkNode

protected LeftTupleSinkNode nextTupleSinkNode

from

protected From from

tupleMemoryEnabled

protected boolean tupleMemoryEnabled

objectTypeConf

protected transient ObjectTypeConf objectTypeConf

Constructor Details

FromNode

public FromNode()

FromNode

public FromNode(int id,
 DataProvider dataProvider,
 LeftTupleSource tupleSource,
 AlphaNodeFieldConstraint[] constraints,
 BetaConstraints binder,
 boolean tupleMemoryEnabled,
 BuildContext context,
 From from)

Method Details

equals

public boolean equals(Object object)

Overrides:

equals in class Object

getDataProvider

public DataProvider getDataProvider()

getAlphaConstraints

public AlphaNodeFieldConstraint[] getAlphaConstraints()

getBetaConstraints

public BetaConstraints getBetaConstraints()

initDeclaredMask

protected void initDeclaredMask(BuildContext context,
 LeftTupleSource leftInput)

Overrides:

initDeclaredMask in class LeftTupleSource

getLeftInputPattern

protected Pattern getLeftInputPattern(BuildContext context)

Overrides:

getLeftInputPattern in class LeftTupleSource

setNodeConstraintsPropertyReactiveMask

protected org.drools.util.bitmask.BitMask setNodeConstraintsPropertyReactiveMask(org.drools.util.bitmask.BitMask mask,
 ObjectType objectType,
 List<String> accessibleProperties)

Overrides:

setNodeConstraintsPropertyReactiveMask in class LeftTupleSource

getResultClass

public Class<?> getResultClass()

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

createRightTuple

public RightTuple createRightTuple(TupleImpl leftTuple,
 PropagationContext context,
 ReteEvaluator reteEvaluator,
 Object object)

createFactHandle

public InternalFactHandle createFactHandle(ReteEvaluator reteEvaluator,
 Object object)

addToCreatedHandlesMap

public void addToCreatedHandlesMap(Map<Object,RightTuple> matches,
 RightTuple rightTuple)

createMemory

public T createMemory(RuleBaseConfiguration config,
 ReteEvaluator reteEvaluator)

Specified by:

createMemory in interface MemoryFactory<T extends FromNode.FromMemory>

isLeftTupleMemoryEnabled

public boolean isLeftTupleMemoryEnabled()

Specified by:

isLeftTupleMemoryEnabled in interface LeftTupleSink

Specified by:

isLeftTupleMemoryEnabled in class LeftTupleSource

getNextLeftTupleSinkNode

public LeftTupleSinkNode getNextLeftTupleSinkNode()

Returns the next node

Specified by:

getNextLeftTupleSinkNode in interface LeftTupleSinkNode

Returns:

The next TupleSinkNode

setNextLeftTupleSinkNode

public void setNextLeftTupleSinkNode(LeftTupleSinkNode next)

Sets the next node

Specified by:

setNextLeftTupleSinkNode in interface LeftTupleSinkNode

Parameters:

next - The next TupleSinkNode

getPreviousLeftTupleSinkNode

public LeftTupleSinkNode getPreviousLeftTupleSinkNode()

Returns the previous node

Specified by:

getPreviousLeftTupleSinkNode in interface LeftTupleSinkNode

Returns:

The previous TupleSinkNode

setPreviousLeftTupleSinkNode

public void setPreviousLeftTupleSinkNode(LeftTupleSinkNode previous)

Sets the previous node

Specified by:

setPreviousLeftTupleSinkNode in interface LeftTupleSinkNode

Parameters:

previous - The previous TupleSinkNode

getType

public int getType()

Specified by:

getType in interface NetworkNode

Specified by:

getType in class LeftTupleSource

getObjectTypeNode

public ObjectTypeNode getObjectTypeNode()

Specified by:

getObjectTypeNode in class BaseNode

doAttach

public void doAttach(BuildContext context)

Overrides:

doAttach in class BaseNode

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