Package jason.stdlib

Class drop_event

java.lang.Object

jason.asSemantics.DefaultInternalAction

jason.stdlib.drop_intention

jason.stdlib.drop_desire

jason.stdlib.drop_event

All Implemented Interfaces:

InternalAction, Serializable

@Manual(literal=".drop_event(event)",
        hint="removes referred event from the agent circumstance",
        argsHint="the event to be dropped",
        argsType="literal",
        examples=".drop_event(go(X,Y)): removes events such as <+!go(1,3),_> from the set of events",
        seeAlso={"jason.stdlib.intend","jason.stdlib.desire","jason.stdlib.drop_all_desires","jason.stdlib.drop_all_events","jason.stdlib.drop_all_intentions","jason.stdlib.drop_intention","jason.stdlib.drop_desire","jason.stdlib.succeed_goal","jason.stdlib.fail_goal","jason.stdlib.current_intention","jason.stdlib.resume","jason.stdlib.suspend","jason.stdlib.suspended"})
public class drop_event
extends drop_desire

Internal action: .drop_event(D).

Description: removes events D from the agent circumstance. This internal action simply removes all +!D entries (those for which .desire(D) would succeed) from the set of events only; this action is complementary to .drop_desire and .drop_intention, in case a goal is to be removed only from the set of events and not from the set of intentions. No event is produced as a consequence of dropping desires from the set of events.

Parameters:

• - event (literal): the event to be dropped.

Example:

• .drop_event(go(X,Y)): removes events such as <+!go(1,3),_> from the set of events.

See Also:

• current_intention
• desire
• drop_all_desires
• drop_all_events
• drop_all_intentions
• drop_intention
• drop_desire
• succeed_goal
• fail_goal
• intend
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
drop_event()

Method Summary

Modifier and Type	Method	Description
Object	execute(TransitionSystem ts, Unifier un, Term[] args)	Executes the internal action.

Methods inherited from class jason.stdlib.drop_desire

dropEvt

Methods inherited from class jason.stdlib.drop_intention

checkArguments, dropInt, getMaxArgs, getMinArgs, suspendIntention

Methods inherited from class jason.asSemantics.DefaultInternalAction

canBeUsedInContext, destroy, prepareArguments

Methods inherited from class java.lang.Object

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

Constructor Details

drop_event

public drop_event()

Method Details

execute

public Object execute(TransitionSystem ts,
 Unifier un,
 Term[] args)
               throws Exception

Description copied from interface: InternalAction

Executes the internal action. It should return a Boolean or an Iterator. A true boolean return means that the IA was successfully executed. An Iterator result means that there is more than one answer for this IA (e.g. see member internal action).

Specified by:

execute in interface InternalAction

Overrides:

execute in class drop_desire

Throws:

Exception