jason.stdlib
Class atom

Package class diagram package atom
java.lang.Object
  extended by jason.asSemantics.DefaultInternalAction
      extended by jason.stdlib.atom
All Implemented Interfaces:
InternalAction, java.io.Serializable

public class atom
extends DefaultInternalAction

Internal action: .atom.

Description: checks whether the argument is an atom (a structure with arity 0), for example "p". Numbers, strings, and free variables are not atoms.

Parameters:

Examples:

See Also:
atom, list, literal, number, string, structure, ground, Serialized Form

Constructor Summary
atom()
           
 
Method Summary
static InternalAction create()
           
 java.lang.Object execute(TransitionSystem ts, Unifier un, Term[] args)
          Executes the internal action.
 int getMaxArgs()
           
 int getMinArgs()
           
 
Methods inherited from class jason.asSemantics.DefaultInternalAction
canBeUsedInContext, checkArguments, prepareArguments, suspendIntention
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

atom

public atom()
Method Detail

create

public static InternalAction create()

getMinArgs

public int getMinArgs()
Overrides:
getMinArgs in class DefaultInternalAction

getMaxArgs

public int getMaxArgs()
Overrides:
getMaxArgs in class DefaultInternalAction

execute

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