Package org.drools.core.reteoo

Class QueryElementNode

java.lang.Object

org.drools.core.common.BaseNode

org.drools.core.reteoo.LeftTupleSource

org.drools.core.reteoo.QueryElementNode

All Implemented Interfaces:

java.io.Serializable, org.drools.base.common.NetworkNode, MemoryFactory<QueryElementNode.QueryElementNodeMemory>, LeftTupleNode, LeftTupleSink, LeftTupleSinkNode, Sink

public class QueryElementNode
extends LeftTupleSource
implements LeftTupleSinkNode, MemoryFactory<QueryElementNode.QueryElementNodeMemory>

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	QueryElementNode.QueryElementNodeMemory
static class	QueryElementNode.UnificationNodeViewChangedEventListener

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	openQuery
protected org.drools.base.rule.QueryElement	queryElement

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	Description
QueryElementNode()
QueryElementNode(int id, LeftTupleSource tupleSource, org.drools.base.rule.QueryElement queryElement, boolean tupleMemoryEnabled, boolean openQuery, BuildContext context)

Method Summary

Modifier and Type	Method	Description
protected QueryElementNode.UnificationNodeViewChangedEventListener	createCollector(LeftTuple leftTuple, int[] varIndexes, boolean tupleMemoryEnabled)
DroolsQueryImpl	createDroolsQuery(LeftTuple leftTuple, InternalFactHandle handle, StackEntry stackEntry, java.util.List<PathMemory> pmems, QueryElementNode.QueryElementNodeMemory qmem, LeftTupleSink sink, ReteEvaluator reteEvaluator)
InternalFactHandle	createFactHandle(PropagationContext context, ReteEvaluator reteEvaluator, LeftTuple leftTuple)
LeftTuple	createLeftTuple(InternalFactHandle factHandle, boolean leftTupleMemoryEnabled)
LeftTuple	createLeftTuple(InternalFactHandle factHandle, LeftTuple leftTuple, Sink sink)
LeftTuple	createLeftTuple(LeftTuple leftTuple, RightTuple rightTuple, LeftTuple currentLeftChild, LeftTuple currentRightChild, Sink sink, boolean leftTupleMemoryEnabled)
LeftTuple	createLeftTuple(LeftTuple leftTuple, RightTuple rightTuple, Sink sink)
LeftTuple	createLeftTuple(LeftTuple leftTuple, Sink sink, PropagationContext pctx, boolean leftTupleMemoryEnabled)
QueryElementNode.QueryElementNodeMemory	createMemory(RuleBaseConfiguration config, ReteEvaluator reteEvaluator)
LeftTuple	createPeer(LeftTuple original)
void	doAttach(BuildContext context)
protected boolean	doRemove(RuleRemovalContext context, ReteooBuilder builder)	Removes the node from the network.
boolean	equals(java.lang.Object object)
java.lang.Object[]	getActualArguments(LeftTuple leftTuple, ReteEvaluator reteEvaluator)
LeftTupleSinkNode	getNextLeftTupleSinkNode()	Returns the next node
ObjectTypeNode	getObjectTypeNode()
LeftTupleSinkNode	getPreviousLeftTupleSinkNode()	Returns the previous node
org.drools.base.rule.QueryElement	getQueryElement()
short	getType()
boolean	isLeftTupleMemoryEnabled()
boolean	isOpenQuery()
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
void	setPreviousLeftTupleSinkNode(LeftTupleSinkNode previous)	Sets the previous node
java.lang.String	toString()

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, 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, setPartitionsEnabled, setStreamMode

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 Detail

queryElement

protected org.drools.base.rule.QueryElement queryElement

openQuery

protected boolean openQuery

Constructor Detail

QueryElementNode

public QueryElementNode()

QueryElementNode

public QueryElementNode(int id,
                        LeftTupleSource tupleSource,
                        org.drools.base.rule.QueryElement queryElement,
                        boolean tupleMemoryEnabled,
                        boolean openQuery,
                        BuildContext context)

Method Detail

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

getType

public short getType()

Specified by:

getType in interface org.drools.base.common.NetworkNode

Specified by:

getType in class LeftTupleSource

isLeftTupleMemoryEnabled

public boolean isLeftTupleMemoryEnabled()

Specified by:

isLeftTupleMemoryEnabled in interface LeftTupleSink

Specified by:

isLeftTupleMemoryEnabled in class LeftTupleSource

getQueryElement

public org.drools.base.rule.QueryElement getQueryElement()

isOpenQuery

public boolean isOpenQuery()

createFactHandle

public InternalFactHandle createFactHandle(PropagationContext context,
                                           ReteEvaluator reteEvaluator,
                                           LeftTuple leftTuple)

createDroolsQuery

public DroolsQueryImpl createDroolsQuery(LeftTuple leftTuple,
                                         InternalFactHandle handle,
                                         StackEntry stackEntry,
                                         java.util.List<PathMemory> pmems,
                                         QueryElementNode.QueryElementNodeMemory qmem,
                                         LeftTupleSink sink,
                                         ReteEvaluator reteEvaluator)

getActualArguments

public java.lang.Object[] getActualArguments(LeftTuple leftTuple,
                                             ReteEvaluator reteEvaluator)

createCollector

protected QueryElementNode.UnificationNodeViewChangedEventListener createCollector(LeftTuple leftTuple,
                                                                                   int[] varIndexes,
                                                                                   boolean tupleMemoryEnabled)

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

createLeftTuple

public LeftTuple createLeftTuple(InternalFactHandle factHandle,
                                 boolean leftTupleMemoryEnabled)

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

public LeftTuple createLeftTuple(InternalFactHandle factHandle,
                                 LeftTuple leftTuple,
                                 Sink sink)

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

public LeftTuple createLeftTuple(LeftTuple leftTuple,
                                 Sink sink,
                                 PropagationContext pctx,
                                 boolean leftTupleMemoryEnabled)

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

public LeftTuple createLeftTuple(LeftTuple leftTuple,
                                 RightTuple rightTuple,
                                 Sink sink)

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

public LeftTuple createLeftTuple(LeftTuple leftTuple,
                                 RightTuple rightTuple,
                                 LeftTuple currentLeftChild,
                                 LeftTuple currentRightChild,
                                 Sink sink,
                                 boolean leftTupleMemoryEnabled)

Specified by:

createLeftTuple in interface LeftTupleSink

equals

public boolean equals(java.lang.Object object)

Overrides:

equals in class java.lang.Object

createMemory

public QueryElementNode.QueryElementNodeMemory createMemory(RuleBaseConfiguration config,
                                                            ReteEvaluator reteEvaluator)

Specified by:

createMemory in interface MemoryFactory<QueryElementNode.QueryElementNodeMemory>

getObjectTypeNode

public ObjectTypeNode getObjectTypeNode()

Specified by:

getObjectTypeNode in class BaseNode

createPeer

public LeftTuple createPeer(LeftTuple original)

Specified by:

createPeer in interface LeftTupleSink

Specified by:

createPeer in class LeftTupleSource

toString

public java.lang.String toString()

Overrides:

toString 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