Package jason.stdlib

Class asserta

java.lang.Object

jason.asSemantics.DefaultInternalAction

jason.stdlib.asserta

All Implemented Interfaces:

InternalAction, Serializable

@Manual(literal=".asserta(belief)",
        hint="adds a new belief using prolog like rules",
        argsHint="the belief that will be added at the beginning of the base",
        argsType="literal",
        examples=".asserta(p): adds p at the beginning of the belief base",
        seeAlso={"jason.stdlib.assertz","jason.stdlib.abolish"})
public class asserta
extends DefaultInternalAction

Internal action: .asserta.

Description: adds a new belief as the "+" (or "+invalid input: '<'") operator. However, it can be used in prolog like rules.

Parameters:

• + belief (literal): the belief that will be added at the beginning of the belief base.
  

Examples:

• .asserta(p): adds p at the beggining of the belief base.

See Also:

• assertz
• abolish
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
asserta()

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

asserta

public asserta()

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