Package jade.domain.KBManagement

Class MemKB

java.lang.Object

jade.domain.KBManagement.KB

jade.domain.KBManagement.MemKB

Direct Known Subclasses:

DFMemKB

public abstract class MemKB
extends KB

Common base class for AMS and DF Knowledge Base

Author:

Elisabetta Cortese - TILab

Field Summary

Fields

Modifier and Type	Field	Description
protected int	currentReg
protected Map	facts
protected LeaseManager	lm
protected static int	MAX_REGISTER_WITHOUT_CLEAN
protected SubscriptionResponder	sr
protected Hashtable	subscriptions

Constructor Summary

Constructors

Constructor	Description
MemKB(int maxResultLimit)

Method Summary

Modifier and Type	Method	Description
protected abstract void	clean()
Enumeration	getSubscriptionDfAgentDescriptions()
Enumeration	getSubscriptions()
Enumeration	getSubscriptions(int offset)
protected Object	insert(Object name, Object fact)
KBIterator	iterator(Object template)	Iterated search is only supported in a DB-based KB.
protected abstract boolean	match(Object template, Object fact)
static boolean	matchAID(AID template, AID fact)
protected Object	remove(Object name)
List	search(Object template, int maxResults)
void	subscribe(Object dfd, SubscriptionResponder.Subscription s)
void	unsubscribe(SubscriptionResponder.Subscription sub)

Methods inherited from class jade.domain.KBManagement.KB

deregister, register, search, setLeaseManager, setSubscriptionResponder

Methods inherited from class java.lang.Object

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

Field Detail

facts

protected Map facts

subscriptions

protected Hashtable subscriptions

lm

protected LeaseManager lm

currentReg

protected int currentReg

sr

protected SubscriptionResponder sr

MAX_REGISTER_WITHOUT_CLEAN

protected static final int MAX_REGISTER_WITHOUT_CLEAN

See Also:

Constant Field Values

Constructor Detail

MemKB

public MemKB(int maxResultLimit)

Method Detail

insert

protected Object insert(Object name,
                        Object fact)

Specified by:

insert in class KB

remove

protected Object remove(Object name)

Specified by:

remove in class KB

match

protected abstract boolean match(Object template,
                                 Object fact)

clean

protected abstract void clean()

search

public List search(Object template,
                   int maxResults)

Specified by:

search in class KB

iterator

public KBIterator iterator(Object template)

Iterated search is only supported in a DB-based KB. Throw a RuntimeException. The requester will get back a FAILURE

Specified by:

iterator in class KB

subscribe

public void subscribe(Object dfd,
                      SubscriptionResponder.Subscription s)
               throws NotUnderstoodException

Specified by:

subscribe in class KB

Throws:

NotUnderstoodException

getSubscriptionDfAgentDescriptions

public Enumeration getSubscriptionDfAgentDescriptions()

getSubscriptions

public Enumeration getSubscriptions()

Specified by:

getSubscriptions in class KB

getSubscriptions

public Enumeration getSubscriptions(int offset)

unsubscribe

public void unsubscribe(SubscriptionResponder.Subscription sub)

Specified by:

unsubscribe in class KB

matchAID

public static final boolean matchAID(AID template,
                                     AID fact)