Package jadex.rules.rulesystem.rete.nodes

Class TerminalNode

java.lang.Object

jadex.rules.rulesystem.rete.nodes.AbstractNode

jadex.rules.rulesystem.rete.nodes.TerminalNode

All Implemented Interfaces:

INode, ITupleConsumerNode, java.lang.Cloneable

public class TerminalNode
extends AbstractNode
implements ITupleConsumerNode

A terminal node stores the full matches and notifies the agenda of the activated conditions.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TerminalNode.ReteVariableAssignments	The rete variable assignment help extracting values for varaibles.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.Map	extractors	A mapping for fetching variable values (variable -> extractor).
protected AttributeSet	indirects	The set of indirect attributes.
protected AttributeSet	relevants	The set of relevant attributes.
protected IRule	rule	The rule of the terminal node.
protected ITupleSourceNode	tsource	The tuple source.

Fields inherited from class jadex.rules.rulesystem.rete.nodes.AbstractNode

clones, nodeid

Constructor Summary

Constructors

Constructor	Description
TerminalNode(int nodeid, IRule rule, java.util.Map extractors)	Create a new node.

Method Summary

Modifier and Type	Method	Description
void	addTuple(Tuple tuple, IOAVState state, ReteMemory mem, AbstractAgenda agenda)	Send an tuple to this node.
java.lang.Object	createNodeMemory(IOAVState state)	Create the node memory.
protected void	doClone(java.lang.Object theclone)	Do clone makes a deep clone without regarding cycles.
AttributeSet	getIndirectAttributes()	Get the set of indirect attribute types.
java.util.Collection	getNodeMemory(ReteMemory mem)	Get the memory for this node.
AttributeSet	getRelevantAttributes()	Get the set of relevant attribute types.
IRule	getRule()	Get the rule.
ITupleSourceNode	getTupleSource()	Get the tuple source of this node.
void	modifyIndirectObject(java.lang.Object object, OAVAttributeType type, java.lang.Object oldvalue, java.lang.Object newvalue, IOAVState state, ReteMemory mem, AbstractAgenda agenda)	Propagate an indirect object change to this node.
void	modifyTuple(Tuple tuple, int tupleindex, OAVAttributeType type, java.lang.Object oldvalue, java.lang.Object newvalue, IOAVState state, ReteMemory mem, AbstractAgenda agenda)	Modify a tuple in this node.
void	removeTuple(Tuple tuple, IOAVState state, ReteMemory mem, AbstractAgenda agenda)	Remove a tuple from this node.
void	setTupleSource(ITupleSourceNode node)	Set the tuple source of this node.

Methods inherited from class jadex.rules.rulesystem.rete.nodes.AbstractNode

checkNodeConsistency, clone, equals, getNodeId, hashCode, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface jadex.rules.rulesystem.rete.nodes.INode

checkNodeConsistency, clone, getNodeId

Field Detail

tsource

protected ITupleSourceNode tsource

The tuple source.

extractors

protected java.util.Map extractors

A mapping for fetching variable values (variable -> extractor).

rule

protected IRule rule

The rule of the terminal node.

relevants

protected volatile AttributeSet relevants

The set of relevant attributes.

indirects

protected volatile AttributeSet indirects

The set of indirect attributes.

Constructor Detail

TerminalNode

public TerminalNode(int nodeid,
                    IRule rule,
                    java.util.Map extractors)

Create a new node.

Method Detail

addTuple

public void addTuple(Tuple tuple,
                     IOAVState state,
                     ReteMemory mem,
                     AbstractAgenda agenda)

Send an tuple to this node.

Specified by:

addTuple in interface ITupleConsumerNode

Parameters:

tuple - The tuple.

removeTuple

public void removeTuple(Tuple tuple,
                        IOAVState state,
                        ReteMemory mem,
                        AbstractAgenda agenda)

Remove a tuple from this node.

Specified by:

removeTuple in interface ITupleConsumerNode

Parameters:

tuple - The tuple.

modifyTuple

public void modifyTuple(Tuple tuple,
                        int tupleindex,
                        OAVAttributeType type,
                        java.lang.Object oldvalue,
                        java.lang.Object newvalue,
                        IOAVState state,
                        ReteMemory mem,
                        AbstractAgenda agenda)

Modify a tuple in this node.

Specified by:

modifyTuple in interface ITupleConsumerNode

Parameters:

tuple - The tuple.

modifyIndirectObject

public void modifyIndirectObject(java.lang.Object object,
                                 OAVAttributeType type,
                                 java.lang.Object oldvalue,
                                 java.lang.Object newvalue,
                                 IOAVState state,
                                 ReteMemory mem,
                                 AbstractAgenda agenda)

Propagate an indirect object change to this node.

Specified by:

modifyIndirectObject in interface INode

Parameters:

object - The changed object.

setTupleSource

public void setTupleSource(ITupleSourceNode node)

Set the tuple source of this node.

Specified by:

setTupleSource in interface ITupleConsumerNode

Parameters:

node - The tuple source node.

getTupleSource

public ITupleSourceNode getTupleSource()

Get the tuple source of this node.

Specified by:

getTupleSource in interface ITupleConsumerNode

Returns:

The object source node.

createNodeMemory

public java.lang.Object createNodeMemory(IOAVState state)

Create the node memory.

Specified by:

createNodeMemory in interface INode

Parameters:

state - The state.

Returns:

The node memory.

getNodeMemory

public java.util.Collection getNodeMemory(ReteMemory mem)

Get the memory for this node.

Specified by:

getNodeMemory in interface INode

Returns:

The memory.

getRelevantAttributes

public AttributeSet getRelevantAttributes()

Get the set of relevant attribute types.

Specified by:

getRelevantAttributes in interface INode

getIndirectAttributes

public AttributeSet getIndirectAttributes()

Get the set of indirect attribute types. I.e. attributes of objects, which are not part of an object conditions (e.g. for chained extractors)

Specified by:

getIndirectAttributes in interface INode

Returns:

The relevant attribute types.

getRule

public IRule getRule()

Get the rule.

Returns:

The rule.

doClone

protected void doClone(java.lang.Object theclone)

Do clone makes a deep clone without regarding cycles. Method is overridden by subclasses to actually incorporate their attributes.

Specified by:

doClone in class AbstractNode

Parameters:

theclone - The clone.