net.sf.tweety.lp.asp.syntax

Class StrictNegation

java.lang.Object

net.sf.tweety.lp.asp.syntax.ASPElement

net.sf.tweety.lp.asp.syntax.ASPBodyElement

net.sf.tweety.lp.asp.syntax.ASPLiteral

net.sf.tweety.lp.asp.syntax.StrictNegation

All Implemented Interfaces:

Comparable<ASPLiteral>, net.sf.tweety.commons.Formula, net.sf.tweety.logics.commons.syntax.interfaces.Atom, net.sf.tweety.logics.commons.syntax.interfaces.ComplexLogicalFormula, net.sf.tweety.logics.commons.syntax.interfaces.Invertable, net.sf.tweety.logics.commons.syntax.interfaces.LogicStructure, net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

public class StrictNegation
extends ASPLiteral

This class models the strict negation of an atom (as apposed to a NAF negation: DefaultNegation).

Author:

Tim Janus, Thomas Vengels, Anna Gessler

Nested Class Summary

Nested classes/interfaces inherited from interface net.sf.tweety.logics.commons.syntax.interfaces.Atom

net.sf.tweety.logics.commons.syntax.interfaces.Atom.AtomImpl, net.sf.tweety.logics.commons.syntax.interfaces.Atom.RETURN_SET_PREDICATE

Constructor Summary

Constructors

Constructor and Description
StrictNegation(ASPAtom atom) Creates a new negation with the given atom.
StrictNegation(net.sf.tweety.logics.commons.syntax.Predicate p, List<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> terms) Creates a new negation with the given predicate and terms.
StrictNegation(StrictNegation other) Copy-Constructor
StrictNegation(String name) Creates a new negation with the given name.

Method Summary

Modifier and Type	Method and Description
void	addArgument(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> arg)
StrictNegation	clone()
ASPLiteral	cloneWithAddedTerm(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> term) Creates a copy of the literal and adds the given term as argument to the end of the argument list.
int	compareTo(ASPLiteral o)
ASPLiteral	complement()
boolean	equals(Object o)
List<? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>>	getArguments()
ASPAtom	getAtom()
Set<ASPAtom>	getAtoms()
SortedSet<ASPLiteral>	getLiterals() Returns all literals in this element in form of a SortedSet.
String	getName()
net.sf.tweety.logics.commons.syntax.Predicate	getPredicate()
Set<net.sf.tweety.logics.commons.syntax.Predicate>	getPredicates()
net.sf.tweety.logics.fol.syntax.FolSignature	getSignature()
Set<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>>	getTerms()
<C extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> Set<C>	getTerms(Class<C> cls)
int	hashCode()
boolean	isComplete()
net.sf.tweety.logics.commons.syntax.interfaces.Atom.RETURN_SET_PREDICATE	setPredicate(net.sf.tweety.logics.commons.syntax.Predicate predicate)
StrictNegation	substitute(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> v, net.sf.tweety.logics.commons.syntax.interfaces.Term<?> t)
String	toString()

Methods inherited from class net.sf.tweety.lp.asp.syntax.ASPLiteral

isLiteral

Methods inherited from class net.sf.tweety.lp.asp.syntax.ASPElement

containsTermsOfType, exchange, getPredicateCls, isGround, isWellFormed, substitute

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

getPredicateCls

Constructor Detail

StrictNegation

public StrictNegation(ASPAtom atom)

Creates a new negation with the given atom.

Parameters:

atom - an ASP atom

StrictNegation

public StrictNegation(net.sf.tweety.logics.commons.syntax.Predicate p,
                      List<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> terms)

Creates a new negation with the given predicate and terms.

Parameters:

p - predicate of the negated atom

terms - terms of the negated atom

StrictNegation

public StrictNegation(StrictNegation other)

Copy-Constructor

Parameters:

other -

StrictNegation

public StrictNegation(String name)

Creates a new negation with the given name.

Parameters:

name - of the negated atom's predicate

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getLiterals

public SortedSet<ASPLiteral> getLiterals()

Description copied from class: ASPBodyElement

Returns all literals in this element in form of a SortedSet. Literals are atoms or strict negations of atoms.

Specified by:

getLiterals in class ASPBodyElement

Returns:

all the literals used in the rule element

getPredicates

public Set<net.sf.tweety.logics.commons.syntax.Predicate> getPredicates()

Specified by:

getPredicates in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Specified by:

getPredicates in class ASPElement

getAtoms

public Set<ASPAtom> getAtoms()

Specified by:

getAtoms in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Specified by:

getAtoms in class ASPElement

getSignature

public net.sf.tweety.logics.fol.syntax.FolSignature getSignature()

Specified by:

getSignature in interface net.sf.tweety.commons.Formula

Specified by:

getSignature in class ASPElement

clone

public StrictNegation clone()

Specified by:

clone in interface net.sf.tweety.logics.commons.syntax.interfaces.ComplexLogicalFormula

Specified by:

clone in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Specified by:

clone in class ASPElement

getTerms

public Set<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> getTerms()

getTerms

public <C extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> Set<C> getTerms(Class<C> cls)

getName

public String getName()

getPredicate

public net.sf.tweety.logics.commons.syntax.Predicate getPredicate()

setPredicate

public net.sf.tweety.logics.commons.syntax.interfaces.Atom.RETURN_SET_PREDICATE setPredicate(net.sf.tweety.logics.commons.syntax.Predicate predicate)

addArgument

public void addArgument(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> arg)
                 throws net.sf.tweety.logics.commons.error.LanguageException

Throws:

net.sf.tweety.logics.commons.error.LanguageException

getArguments

public List<? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> getArguments()

isComplete

public boolean isComplete()

compareTo

public int compareTo(ASPLiteral o)

cloneWithAddedTerm

public ASPLiteral cloneWithAddedTerm(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> term)

Description copied from class: ASPLiteral

Creates a copy of the literal and adds the given term as argument to the end of the argument list.

Specified by:

cloneWithAddedTerm in class ASPLiteral

Parameters:

term - the new argument.

Returns:

A copy of the literal containing the given term as new argument.

getAtom

public ASPAtom getAtom()

Specified by:

getAtom in class ASPLiteral

Returns:

The atom representing the literal.

complement

public ASPLiteral complement()

Specified by:

complement in interface net.sf.tweety.logics.commons.syntax.interfaces.Invertable

Specified by:

complement in class ASPLiteral

substitute

public StrictNegation substitute(net.sf.tweety.logics.commons.syntax.interfaces.Term<?> v,
                                 net.sf.tweety.logics.commons.syntax.interfaces.Term<?> t)
                          throws IllegalArgumentException

Specified by:

substitute in interface net.sf.tweety.logics.commons.syntax.interfaces.ComplexLogicalFormula

Specified by:

substitute in class ASPBodyElement

Throws:

IllegalArgumentException

hashCode

public int hashCode()

Specified by:

hashCode in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Overrides:

equals in class Object