org.drools.core.reteoo

Class AccumulateNode

java.lang.Object

org.drools.core.common.BaseNode

org.drools.core.reteoo.LeftTupleSource

org.drools.core.reteoo.BetaNode

org.drools.core.reteoo.AccumulateNode

All Implemented Interfaces:

Externalizable, Serializable, MemoryFactory, NetworkNode, LeftTupleNode, LeftTupleSink, LeftTupleSinkNode, ObjectSink, ObjectSinkNode, RightTupleSink, Sink

public class AccumulateNode
extends BetaNode

AccumulateNode A beta node capable of doing accumulate logic. Created: 04/06/2006

Version:

$Id$

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AccumulateNode.AccumulateContext
static class	AccumulateNode.AccumulateMemory
static class	AccumulateNode.ActivitySource
static class	AccumulateNode.MultiAccumulateMemory
static class	AccumulateNode.SingleAccumulateMemory

Field Summary

Fields

Modifier and Type	Field and Description
protected Accumulate	accumulate
protected BetaConstraints	resultBinder
protected AlphaNodeFieldConstraint[]	resultConstraints
protected boolean	unwrapRightObject

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

constraints, indexedUnificationJoin, isLogTraceEnabled, log, objectMemory, rightInput, tupleMemoryEnabled

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

leftInput, sink

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

associations, id, partitionId, partitionsEnabled

Constructor Summary

Constructors

Constructor and Description
AccumulateNode()
AccumulateNode(int id, LeftTupleSource leftInput, ObjectSource rightInput, AlphaNodeFieldConstraint[] resultConstraints, BetaConstraints sourceBinder, BetaConstraints resultBinder, Accumulate accumulate, boolean unwrapRightObject, BuildContext context)

Method Summary

Methods

Modifier and Type	Method and Description
void	assertLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory) Assert a new ReteTuple.
void	assertRightTuple(RightTuple rightTuple, PropagationContext context, InternalWorkingMemory workingMemory)
void	attach(BuildContext context) Attaches the node into the network.
LeftTuple	createLeftTuple(InternalFactHandle factHandle, LeftTuple leftTuple, Sink sink)
LeftTuple	createLeftTuple(InternalFactHandle factHandle, Sink sink, boolean leftTupleMemoryEnabled)
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)
Memory	createMemory(RuleBaseConfiguration config, InternalWorkingMemory wm) Creates a BetaMemory for the BetaNode's memory.
LeftTuple	createPeer(LeftTuple original)
InternalFactHandle	createResultFactHandle(PropagationContext context, InternalWorkingMemory workingMemory, LeftTuple leftTuple, Object result)
boolean	doRemove(RuleRemovalContext context, ReteooBuilder builder, InternalWorkingMemory[] workingMemories) Removes the node from teh network.
boolean	equals(Object object)
Accumulate	getAccumulate()
BetaConstraints	getResultBinder()
AlphaNodeFieldConstraint[]	getResultConstraints()
short	getType()
int	hashCode() The hashCode return is simply the unique id of the node.
boolean	isUnwrapRightObject()
void	modifyLeftTuple(InternalFactHandle factHandle, ModifyPreviousTuples modifyPreviousTuples, PropagationContext context, InternalWorkingMemory workingMemory)
void	modifyLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory)
void	modifyRightTuple(RightTuple rightTuple, PropagationContext context, InternalWorkingMemory workingMemory)
void	readExternal(ObjectInput in)
void	retractLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory)
void	retractRightTuple(RightTuple rightTuple, PropagationContext pctx, InternalWorkingMemory workingMemory)
void	updateSink(LeftTupleSink sink, PropagationContext context, InternalWorkingMemory workingMemory)
void	writeExternal(ObjectOutput out)

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

assertObject, byPassModifyToBetaNode, createRightTuple, doDeleteRightTuple, doUpdateRightTuple, dumpMemory, getBetaMemory, getBetaMemoryFromRightInput, getConstraints, getFirstLeftTuple, getFirstRightTuple, getFirstTuple, getLeftIterator, getLeftTupleSource, getNextLeftTupleSinkNode, getNextObjectSinkNode, getObjectTypeNode, getPreviousLeftTupleSinkNode, getPreviousObjectSinkNode, getRawConstraints, getRightDeclaredMask, getRightInferredMask, getRightInput, getRightInputOtnId, getRightIterator, getRightIterator, getRightNegativeMask, getRules, initDeclaredMask, initInferredMask, initInferredMask, isIndexedUnificationJoin, isLeftTupleMemoryEnabled, isObjectMemoryEnabled, isRightInputIsRiaNode, isRightInputPassive, modifyObject, networkUpdated, setConstraints, setLeftListenedProperties, setLeftTupleMemoryEnabled, setNextLeftTupleSinkNode, setNextObjectSinkNode, setPreviousLeftTupleSinkNode, setPreviousObjectSinkNode, setRightDeclaredMask, setRightInputOtnId, setUnificationJoin, toString, unwrapRightInput

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

addTupleSink, addTupleSink, addTupleSink, getLeftDeclaredMask, getLeftInferredMask, getLeftInputOtnId, getLeftNegativeMask, getObjectType, getPositionInPath, getSinkPropagator, initMasks, isInUse, removeTupleSink, setLeftInferredMask, setLeftInputOtnId, setLeftTupleSource

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

addAssociation, addAssociation, getAssociatedRuleSize, getAssociationsSize, getAssociationsSize, getId, getPartitionId, isAssociatedWith, isStreamMode, remove, removeAssociation, setId, setPartitionId, setStreamMode

Methods inherited from class java.lang.Object

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

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

getLeftInferredMask, getLeftInputOtnId, setLeftInputOtnId

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

getPositionInPath, getSinkPropagator

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

getAssociatedRuleSize, getAssociationsSize, getAssociationsSize, getId, getPartitionId, isAssociatedWith

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

getId

Field Detail

unwrapRightObject

protected boolean unwrapRightObject

accumulate

protected Accumulate accumulate

resultConstraints

protected AlphaNodeFieldConstraint[] resultConstraints

resultBinder

protected BetaConstraints resultBinder

Constructor Detail

AccumulateNode

public AccumulateNode()

AccumulateNode

public AccumulateNode(int id,
              LeftTupleSource leftInput,
              ObjectSource rightInput,
              AlphaNodeFieldConstraint[] resultConstraints,
              BetaConstraints sourceBinder,
              BetaConstraints resultBinder,
              Accumulate accumulate,
              boolean unwrapRightObject,
              BuildContext context)

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class BetaNode

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class BetaNode

Throws:

IOException

getType

public short getType()

Specified by:

getType in interface NetworkNode

Specified by:

getType in class LeftTupleSource

getAccumulate

public Accumulate getAccumulate()

getResultConstraints

public AlphaNodeFieldConstraint[] getResultConstraints()

getResultBinder

public BetaConstraints getResultBinder()

isUnwrapRightObject

public boolean isUnwrapRightObject()

createResultFactHandle

public InternalFactHandle createResultFactHandle(PropagationContext context,
                                        InternalWorkingMemory workingMemory,
                                        LeftTuple leftTuple,
                                        Object result)

attach

public void attach(BuildContext context)

Description copied from class: BaseNode

Attaches the node into the network. Usually to the parent ObjectSource or TupleSource

Overrides:

attach in class BetaNode

hashCode

public int hashCode()

Description copied from class: BaseNode

The hashCode return is simply the unique id of the node. It is expected that base classes will also implement equals(Object object).

Overrides:

hashCode in class BetaNode

equals

public boolean equals(Object object)

Overrides:

equals in class BetaNode

createMemory

public Memory createMemory(RuleBaseConfiguration config,
                  InternalWorkingMemory wm)

Creates a BetaMemory for the BetaNode's memory.

Specified by:

createMemory in interface MemoryFactory

Overrides:

createMemory in class BetaNode

createLeftTuple

public LeftTuple createLeftTuple(InternalFactHandle factHandle,
                        Sink sink,
                        boolean leftTupleMemoryEnabled)

createLeftTuple

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

createLeftTuple

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

createLeftTuple

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

createLeftTuple

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

createPeer

public LeftTuple createPeer(LeftTuple original)

Specified by:

createPeer in interface LeftTupleSink

Specified by:

createPeer in class LeftTupleSource

assertRightTuple

public void assertRightTuple(RightTuple rightTuple,
                    PropagationContext context,
                    InternalWorkingMemory workingMemory)

retractRightTuple

public void retractRightTuple(RightTuple rightTuple,
                     PropagationContext pctx,
                     InternalWorkingMemory workingMemory)

modifyRightTuple

public void modifyRightTuple(RightTuple rightTuple,
                    PropagationContext context,
                    InternalWorkingMemory workingMemory)

assertLeftTuple

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

Description copied from interface: LeftTupleSink

Assert a new ReteTuple.

Parameters:

leftTuple - The ReteTuple to propagate.

context - The PropagationContext of the WorkingMemory action

workingMemory - the WorkingMemory session.

retractLeftTuple

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

modifyLeftTuple

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

modifyLeftTuple

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

updateSink

public void updateSink(LeftTupleSink sink,
              PropagationContext context,
              InternalWorkingMemory workingMemory)

Specified by:

updateSink in class LeftTupleSource

doRemove

public boolean doRemove(RuleRemovalContext context,
               ReteooBuilder builder,
               InternalWorkingMemory[] workingMemories)

Description copied from class: BaseNode

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

Specified by:

doRemove in class BaseNode