jadex.rules.rulesystem.rete.nodes

Class InitialFactNode

java.lang.Object

jadex.rules.rulesystem.rete.nodes.AbstractNode

jadex.rules.rulesystem.rete.nodes.InitialFactNode

All Implemented Interfaces:

INode, IObjectConsumerNode, ITupleSourceNode, java.lang.Cloneable

public class InitialFactNode
extends AbstractNode
implements ITupleSourceNode, IObjectConsumerNode

Dummy fact node for not conditions, which are no joins.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	INITIAL_FACT The initial fact.
protected java.util.Collection	initial_fact_mem The initial fact memory.
protected Tuple	initial_fact_tuple The initial fact tuple.
protected IObjectSourceNode	osource The object source.
protected AttributeSet	relevants The set of relevant attributes.
protected ITupleConsumerNode[]	tconsumers The tuple consumers.

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

clones, nodeid

Constructor Summary

Constructors

Constructor and Description
InitialFactNode(int nodeid) Create a new node.

Method Summary

Modifier and Type	Method and Description
void	addObject(java.lang.Object object, IOAVState state, ReteMemory mem, AbstractAgenda agenda) Send a new object to this node.
void	addTupleConsumer(ITupleConsumerNode node) Add an tuple consumer 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.
IObjectSourceNode	getObjectSource() Get the object source of this node.
AttributeSet	getRelevantAttributes() Get the set of relevant attribute types.
ITupleConsumerNode[]	getTupleConsumers() Get all tuple consumer nodes.
void	init(IOAVState state, ReteMemory mem, AbstractAgenda agenda) Initialize the pattern matcher.
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	modifyObject(java.lang.Object object, OAVAttributeType type, java.lang.Object oldvalue, java.lang.Object newvalue, IOAVState state, ReteMemory mem, AbstractAgenda agenda) Propagate an object change to this node.
void	removeObject(java.lang.Object object, IOAVState state, ReteMemory mem, AbstractAgenda agenda) Send a removed object to this node.
void	removeTupleConsumer(ITupleConsumerNode node) Remove an tuple consumer.
void	setObjectSource(IObjectSourceNode node) Set the object 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

INITIAL_FACT

public static final java.lang.String INITIAL_FACT

The initial fact.

See Also:

Constant Field Values

tconsumers

protected ITupleConsumerNode[] tconsumers

The tuple consumers.

osource

protected IObjectSourceNode osource

The object source.

relevants

protected volatile AttributeSet relevants

The set of relevant attributes.

initial_fact_tuple

protected Tuple initial_fact_tuple

The initial fact tuple.

initial_fact_mem

protected java.util.Collection initial_fact_mem

The initial fact memory.

Constructor Detail

InitialFactNode

public InitialFactNode(int nodeid)

Create a new node.

Method Detail

init

public void init(IOAVState state,
                 ReteMemory mem,
                 AbstractAgenda agenda)

Initialize the pattern matcher. Called before the agenda is accessed to perform any initialization, if necessary.

addObject

public void addObject(java.lang.Object object,
                      IOAVState state,
                      ReteMemory mem,
                      AbstractAgenda agenda)

Send a new object to this node.

Specified by:

addObject in interface IObjectConsumerNode

Parameters:

object - The object.

removeObject

public void removeObject(java.lang.Object object,
                         IOAVState state,
                         ReteMemory mem,
                         AbstractAgenda agenda)

Send a removed object to this node.

Specified by:

removeObject in interface IObjectConsumerNode

Parameters:

object - The object.

modifyObject

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

Propagate an object change to this node.

Specified by:

modifyObject in interface IObjectConsumerNode

Parameters:

object - The new object.

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.

setObjectSource

public void setObjectSource(IObjectSourceNode node)

Set the object source of this node.

Specified by:

setObjectSource in interface IObjectConsumerNode

Parameters:

node - The object source node.

getObjectSource

public IObjectSourceNode getObjectSource()

Get the object source of this node.

Specified by:

getObjectSource in interface IObjectConsumerNode

Returns:

The object source node.

addTupleConsumer

public void addTupleConsumer(ITupleConsumerNode node)

Add an tuple consumer node.

Specified by:

addTupleConsumer in interface ITupleSourceNode

Parameters:

node - A new consumer node.

removeTupleConsumer

public void removeTupleConsumer(ITupleConsumerNode node)

Remove an tuple consumer.

Specified by:

removeTupleConsumer in interface ITupleSourceNode

Parameters:

node - The consumer node.

getTupleConsumers

public ITupleConsumerNode[] getTupleConsumers()

Get all tuple consumer nodes.

Specified by:

getTupleConsumers in interface ITupleSourceNode

Returns:

All tuple consumer nodes.

getNodeMemory

public java.util.Collection getNodeMemory(ReteMemory mem)

Get the memory for this node.

Specified by:

getNodeMemory in interface INode

Specified by:

getNodeMemory in interface ITupleSourceNode

Returns:

The memory.

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.

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.

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.