org.drools.core.reteoo
Class QueryRiaFixerNode

java.lang.Object
  org.drools.core.common.BaseNode
      org.drools.core.reteoo.LeftTupleSource
          org.drools.core.reteoo.QueryRiaFixerNode

All Implemented Interfaces:

Externalizable, Serializable, NetworkNode, LeftTupleSink, LeftTupleSinkNode, Sink

public class QueryRiaFixerNode
extends LeftTupleSource
implements LeftTupleSinkNode

Node which filters ReteTuples.

Using a semantic Test, this node may allow or disallow Tuples to proceed further through the Rete-OO network.

See Also:

QueryRiaFixerNode, Eval, LeftTuple, Serialized Form

Field Summary

protected boolean

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, streamMode

Constructor Summary

QueryRiaFixerNode()

QueryRiaFixerNode(int id, LeftTupleSource tupleSource, BuildContext context)
Construct.

Method Summary

void	addTupleSink(LeftTupleSink tupleSink, BuildContext context) public LeftTupleSource getLeftTupleSource() { return leftInput; } public void setLeftTupleSource(LeftTupleSource leftInput) { this.leftInput = leftInput; } /** Adds the TupleSink so that it may receive Tuples propagated from this TupleSource.
void	assertLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory) Assert a new Tuple.
void	attach(BuildContext context) Attaches the node into the network.
LeftTuple	createLeftTuple(InternalFactHandle factHandle, LeftTuple leftTuple, LeftTupleSink sink)
LeftTuple	createLeftTuple(InternalFactHandle factHandle, LeftTupleSink sink, boolean leftTupleMemoryEnabled)
LeftTuple	createLeftTuple(LeftTuple leftTuple, LeftTupleSink sink, PropagationContext pctx, boolean leftTupleMemoryEnabled)
LeftTuple	createLeftTuple(LeftTuple leftTuple, RightTuple rightTuple, LeftTuple currentLeftChild, LeftTuple currentRightChild, LeftTupleSink sink, boolean leftTupleMemoryEnabled)
LeftTuple	createLeftTuple(LeftTuple leftTuple, RightTuple rightTuple, LeftTupleSink sink)
LeftTuple	createPeer(LeftTuple original)
protected void	doCollectAncestors(NodeSet nodeSet)
protected void	doRemove(RuleRemovalContext context, ReteooBuilder builder, InternalWorkingMemory[] workingMemories) Removes the node from teh network.
boolean	equals(Object object)
BetaNode	getBetaNode()
LeftTupleSource	getLeftTupleSource()
LeftTupleSinkNode	getNextLeftTupleSinkNode() Returns the next node
protected ObjectTypeNode	getObjectTypeNode()
LeftTupleSinkNode	getPreviousLeftTupleSinkNode() Returns the previous node
short	getType()
int	hashCode() The hashCode return is simply the unique id of the node.
boolean	isInUse() Returns true in case the current node is in use (is referenced by any other node)
boolean	isLeftTupleMemoryEnabled()
void	modifyLeftTuple(LeftTuple leftTuple, 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 oportunity for state update
void	readExternal(ObjectInput in)
protected void	removeTupleSink(LeftTupleSink tupleSink) Removes the TupleSink
void	retractLeftTuple(LeftTuple leftTuple, PropagationContext context, InternalWorkingMemory workingMemory)
void	setLeftTupleMemoryEnabled(boolean tupleMemoryEnabled)
void	setNextLeftTupleSinkNode(LeftTupleSinkNode next) Sets the next node
void	setPreviousLeftTupleSinkNode(LeftTupleSinkNode previous) Sets the previous node
String	toString() Produce a debug string.
void	updateSink(LeftTupleSink sink, PropagationContext context, InternalWorkingMemory workingMemory)
void	writeExternal(ObjectOutput out)

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

addTupleSink, addTupleSink, doModifyLeftTuple, getLeftDeclaredMask, getLeftInferredMask, getLeftInputOtnId, getLeftNegativeMask, getObjectType, getSinkPropagator, initDeclaredMask, initInferredMask, initMasks, isUnlinkingEnabled, modifyLeftTuple, setLeftInferredMask, setLeftInputOtnId, setLeftListenedProperties, setLeftTupleSource

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

addAssociation, attach, collectAncestors, getAssociations, getId, getPartitionId, isStreamMode, remove, removeAssociation, setId, setPartitionId

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, modifyLeftTuple, setLeftInputOtnId

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

getAssociations, getId, getPartitionId

Field Detail

tupleMemoryEnabled

protected boolean tupleMemoryEnabled

Constructor Detail

QueryRiaFixerNode

public QueryRiaFixerNode()

QueryRiaFixerNode

public QueryRiaFixerNode(int id,
                         LeftTupleSource tupleSource,
                         BuildContext context)

Construct.

Parameters:

rule - The rule

tupleSource - The source of incoming Tuples.

eval -

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

getBetaNode

public BetaNode getBetaNode()

addTupleSink

public void addTupleSink(LeftTupleSink tupleSink,
                         BuildContext context)

Description copied from class: LeftTupleSource

public LeftTupleSource getLeftTupleSource() { return leftInput; } public void setLeftTupleSource(LeftTupleSource leftInput) { this.leftInput = leftInput; } /** Adds the TupleSink so that it may receive Tuples propagated from this TupleSource.

Overrides:

addTupleSink in class LeftTupleSource

Parameters:

tupleSink - The TupleSink to receive propagated Tuples.

attach

public void attach(BuildContext context)

Description copied from class: BaseNode

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

Specified by:

attach 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 oportunity for state update

Specified by:

networkUpdated in class BaseNode

assertLeftTuple

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

Assert a new Tuple.

Specified by:

assertLeftTuple in interface LeftTupleSink

Parameters:

leftTuple - The Tuple being asserted.

workingMemory - The working memory seesion.

context - The PropagationContext of the WorkingMemory action

Throws:

AssertionException - If an error occurs while asserting.

retractLeftTuple

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

Specified by:

retractLeftTuple in interface LeftTupleSink

modifyLeftTuple

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

Specified by:

modifyLeftTuple in interface LeftTupleSink

toString

public String toString()

Produce a debug string.

Overrides:

toString in class BaseNode

Returns:

The debug string.

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 BaseNode

equals

public boolean equals(Object object)

Overrides:

equals in class Object

updateSink

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

Specified by:

updateSink in class LeftTupleSource

doRemove

protected void 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

doCollectAncestors

protected void doCollectAncestors(NodeSet nodeSet)

Specified by:

doCollectAncestors in class BaseNode

isLeftTupleMemoryEnabled

public boolean isLeftTupleMemoryEnabled()

Specified by:

isLeftTupleMemoryEnabled in interface LeftTupleSink

Specified by:

isLeftTupleMemoryEnabled in class LeftTupleSource

setLeftTupleMemoryEnabled

public void setLeftTupleMemoryEnabled(boolean tupleMemoryEnabled)

Specified by:

setLeftTupleMemoryEnabled in interface LeftTupleSink

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 short getType()

Specified by:

getType in interface NetworkNode

Specified by:

getType in interface LeftTupleSink

Specified by:

getType in class LeftTupleSource

createLeftTuple

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

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

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

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

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

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

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

Specified by:

createLeftTuple in interface LeftTupleSink

createLeftTuple

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

Specified by:

createLeftTuple in interface LeftTupleSink

isInUse

public boolean isInUse()

Description copied from class: BaseNode

Returns true in case the current node is in use (is referenced by any other node)

Overrides:

isInUse in class LeftTupleSource

Returns:

getLeftTupleSource

public LeftTupleSource getLeftTupleSource()

Specified by:

getLeftTupleSource in interface LeftTupleSink

Overrides:

getLeftTupleSource in class LeftTupleSource

getObjectTypeNode

protected ObjectTypeNode getObjectTypeNode()

Specified by:

getObjectTypeNode in class LeftTupleSource

createPeer

public LeftTuple createPeer(LeftTuple original)

Specified by:

createPeer in interface LeftTupleSink

Specified by:

createPeer in class LeftTupleSource

removeTupleSink

protected void removeTupleSink(LeftTupleSink tupleSink)

Description copied from class: LeftTupleSource

Removes the TupleSink

Overrides:

removeTupleSink in class LeftTupleSource

Parameters:

tupleSink - The TupleSink to remove