zeus.rete
Class ReteEngine

java.lang.Object
  zeus.rete.ReteEngine

public class ReteEngine

extends java.lang.Object

Nested Class Summary

protected class

ReteEngine.SymFactAction

Field Summary

protected ConflictSet	conflictSet
protected AgentContext	context
private HSet[]	eventMonitor
protected java.util.Hashtable	factDb
protected java.util.Hashtable	ids
protected Fact	initial_fact
protected int	joinPathNo
protected java.util.Vector	joins
protected static java.lang.String	JPATH
private HSet	localMonitor
protected OntologyDb	ontologyDb
protected static java.lang.String	PATH
protected int	pathNo
protected java.util.Hashtable	roots
(package private) static int	RULE_ACTIVATED
(package private) static int	RULE_ADDED
(package private) static int	RULE_DEACTIVATED
(package private) static int	RULE_FIRED
(package private) static int	RULE_REMOVED
protected java.util.Vector	singles
protected java.util.Vector	tests

Constructor Summary

ReteEngine()

ReteEngine(AgentContext context)

ReteEngine(OntologyDb ontologyDb)

Method Summary

void	add(ReteKB kb)
void	add(Rule r)
void	addLocalFactMonitor(LocalFactMonitor monitor)
void	addMonitor(ReteEngineMonitor monitor, long event_type)
(package private) void	fireEvent(int type, ActionNode node, java.lang.String diagnostic)
(package private) void	fireLocalFactMonitor(int tag, Fact f)
AgentContext	getAgentContext()
(package private) ConflictSet	getConfictSet()
(package private) java.util.Hashtable	getFactDb()
private OntologyDb	ontology()
void	remove(Rule r)
void	removeLocalFactMonitor(LocalFactMonitor monitor)
void	removeMonitor(ReteEngineMonitor monitor, long event_type)
void	reset()
void	run()
void	update(int tag, Fact f) Update is the method which is called to decide if a rule should be fired or not when a fact is added to the ResourceDb.
void	update(int tag, ReteFact token)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RULE_ACTIVATED

static final int RULE_ACTIVATED

See Also:

Constant Field Values

RULE_DEACTIVATED

static final int RULE_DEACTIVATED

See Also:

Constant Field Values

RULE_ADDED

static final int RULE_ADDED

See Also:

Constant Field Values

RULE_REMOVED

static final int RULE_REMOVED

See Also:

Constant Field Values

RULE_FIRED

static final int RULE_FIRED

See Also:

Constant Field Values

factDb

protected java.util.Hashtable factDb

PATH

protected static final java.lang.String PATH

See Also:

Constant Field Values

JPATH

protected static final java.lang.String JPATH

See Also:

Constant Field Values

roots

protected java.util.Hashtable roots

ids

protected java.util.Hashtable ids

singles

protected java.util.Vector singles

joins

protected java.util.Vector joins

tests

protected java.util.Vector tests

pathNo

protected int pathNo

joinPathNo

protected int joinPathNo

conflictSet

protected ConflictSet conflictSet

initial_fact

protected Fact initial_fact

context

protected AgentContext context

ontologyDb

protected OntologyDb ontologyDb

eventMonitor

private HSet[] eventMonitor

localMonitor

private HSet localMonitor

Constructor Detail

ReteEngine

public ReteEngine()

ReteEngine

public ReteEngine(AgentContext context)

ReteEngine

public ReteEngine(OntologyDb ontologyDb)

Method Detail

getAgentContext

public AgentContext getAgentContext()

run

public void run()

reset

public void reset()

getConfictSet

ConflictSet getConfictSet()

getFactDb

java.util.Hashtable getFactDb()

update

public void update(int tag,
                   ReteFact token)

update

public void update(int tag,
                   Fact f)

Update is the method which is called to decide if a rule should be fired or not when a fact is added to the ResourceDb. Change Log ---------- 26/06/01 - 1.3 - Simon Thompson added some code to check not only for rootnodes of the same type as the added fact, but also the ancestors of the fact to. However, note that only one rule will be fired!

ontology

private OntologyDb ontology()

add

public void add(ReteKB kb)

add

public void add(Rule r)

remove

public void remove(Rule r)

addLocalFactMonitor

public void addLocalFactMonitor(LocalFactMonitor monitor)

removeLocalFactMonitor

public void removeLocalFactMonitor(LocalFactMonitor monitor)

fireLocalFactMonitor

void fireLocalFactMonitor(int tag,
                          Fact f)

addMonitor

public void addMonitor(ReteEngineMonitor monitor,
                       long event_type)

removeMonitor

public void removeMonitor(ReteEngineMonitor monitor,
                          long event_type)

fireEvent

void fireEvent(int type,
               ActionNode node,
               java.lang.String diagnostic)