Package jason.stdlib

Class abolish

java.lang.Object

jason.asSemantics.DefaultInternalAction

jason.stdlib.abolish

All Implemented Interfaces:

InternalAction, Serializable

@Manual(literal=".abolish(argument)",
        hint="removes all beliefs that match the argument.",
        argsHint="the \"pattern\" for what should be removed.",
        argsType="literal or variable",
        examples={".abolish(b(_)): remove all b/1 beliefs, regardless of the argument value and the source of the belief",".abolish(c(_,t)): remove all c/2 beliefs where the second argument is t",".abolish(c(_,_)[source(ag1)]): remove all c/2 beliefs that have ag1 as source",".abolish(_[source(ag1)]): remove any beliefs that have ag1 as source"},
        seeAlso={"jason.stdlib.asserta","jason.stdlib.assertz"})
public class abolish
extends DefaultInternalAction

Internal action: .abolish.

Description: removes all beliefs that match the argument. As for the "-" operator, an event will be generated for each deletion. Different from the "-" operator, which consider "self" as the default source, .abolish will ignore the source if not informed.

Parameters:

• + pattern (literal or variable): the "pattern" for what should be removed.
  

Examples:

• .abolish(b(_)): remove all b/1 beliefs, regardless of the argument value and the source of the belief.
• .abolish(c(_,t)): remove all c/2 beliefs where the second argument is t.
• .abolish(c(_,_)[source(ag1)]): remove all c/2 beliefs that have ag1 as source.
• .abolish(_[source(ag1)]): remove any beliefs that have ag1 as source.

See Also:

• asserta
• assertz
• belief
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
abolish()

Method Summary

Modifier and Type	Method	Description
protected void	checkArguments(Term[] args)
Object	execute(TransitionSystem ts, Unifier un, Term[] args)	Executes the internal action.
int	getMaxArgs()
int	getMinArgs()

Methods inherited from class jason.asSemantics.DefaultInternalAction

canBeUsedInContext, destroy, prepareArguments, suspendIntention

Methods inherited from class java.lang.Object

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

Constructor Details

abolish

public abolish()

Method Details

getMinArgs

public int getMinArgs()

Overrides:

getMinArgs in class DefaultInternalAction

getMaxArgs

public int getMaxArgs()

Overrides:

getMaxArgs in class DefaultInternalAction

checkArguments

protected void checkArguments(Term[] args)
                       throws JasonException

Overrides:

checkArguments in class DefaultInternalAction

Throws:

JasonException

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 DefaultInternalAction

Throws:

Exception