Package org.tweetyproject.lp.asp.syntax
Class StrictNegation
java.lang.Object
org.tweetyproject.lp.asp.syntax.ASPElement
org.tweetyproject.lp.asp.syntax.ASPBodyElement
org.tweetyproject.lp.asp.syntax.ASPLiteral
org.tweetyproject.lp.asp.syntax.StrictNegation
- All Implemented Interfaces:
Comparable<ASPLiteral>
,Formula
,Atom
,ComplexLogicalFormula
,Invertable
,LogicStructure
,SimpleLogicalFormula
This class models the strict negation of an atom (as opposed to a default
negation:
DefaultNegation
).- Author:
- Tim Janus, Thomas Vengels, Anna Gessler
-
Nested Class Summary
Nested classes/interfaces inherited from interface org.tweetyproject.logics.commons.syntax.interfaces.Atom
Atom.AtomImpl, Atom.RETURN_SET_PREDICATE
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Constructor Summary
ConstructorDescriptionStrictNegation
(String name) Creates a new negation with the given name.StrictNegation
(Predicate p, List<Term<?>> terms) Creates a new negation with the given predicate and terms.StrictNegation
(ASPAtom atom) Creates a new negation with the given atom.StrictNegation
(StrictNegation other) Copy-Constructor -
Method Summary
Modifier and TypeMethodDescriptionvoid
addArgument
(Term<?> arg) Adds an argument to the atom's argument listclone()
Creates a deep copy of this formulacloneWithAddedTerm
(Term<?> term) Creates a copy of the literal and adds the given term as argument to the end of the argument list.int
boolean
getAtom()
getAtoms()
Processes the set of all atoms which appear in this formulaReturns all literals in this element in form of a SortedSet.getName()
Processes the set of all predicates which appear in this formulaReturns the signature of the language of this formula.getTerms()
Processes the set containing all terms of type C.int
hashCode()
boolean
setPredicate
(Predicate predicate) Changes the predicate of the atom.substitute
(Term<?> v, Term<?> t) Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.toString()
Methods inherited from class org.tweetyproject.lp.asp.syntax.ASPLiteral
isLiteral
Methods inherited from class org.tweetyproject.lp.asp.syntax.ASPElement
containsTermsOfType, exchange, getPredicateCls, isGround, isWellFormed, printToClingo, printToDLV, substitute
Methods inherited from interface org.tweetyproject.logics.commons.syntax.interfaces.SimpleLogicalFormula
getPredicateCls
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Constructor Details
-
StrictNegation
Creates a new negation with the given atom.- Parameters:
atom
- an ASP atom
-
StrictNegation
Creates a new negation with the given predicate and terms.- Parameters:
p
- predicate of the negated atomterms
- terms of the negated atom
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StrictNegation
Copy-Constructor- Parameters:
other
- another StrictNegation
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StrictNegation
Creates a new negation with the given name.- Parameters:
name
- of the negated atom's predicate
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Method Details
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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 classASPBodyElement
- Returns:
- all the literals used in the rule element
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getPredicates
Description copied from interface:SimpleLogicalFormula
Processes the set of all predicates which appear in this formula- Specified by:
getPredicates
in interfaceSimpleLogicalFormula
- Specified by:
getPredicates
in classASPElement
- Returns:
- all predicates that appear in this formula
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getAtoms
Description copied from interface:SimpleLogicalFormula
Processes the set of all atoms which appear in this formula- Specified by:
getAtoms
in interfaceSimpleLogicalFormula
- Specified by:
getAtoms
in classASPElement
- Returns:
- The set of all atoms
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getSignature
Description copied from interface:Formula
Returns the signature of the language of this formula.- Specified by:
getSignature
in interfaceFormula
- Specified by:
getSignature
in classASPElement
- Returns:
- the signature of the language of this formula.
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clone
Description copied from interface:SimpleLogicalFormula
Creates a deep copy of this formula- Specified by:
clone
in interfaceComplexLogicalFormula
- Specified by:
clone
in interfaceSimpleLogicalFormula
- Specified by:
clone
in classASPElement
- Returns:
- the cloned formula
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getTerms
- Returns:
- a set containing all terms of this logical structure
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getTerms
Description copied from interface:LogicStructure
Processes the set containing all terms of type C. This method uses the equals method of the given Class and therefore does not add terms which are sub classes of type C to the set.- Type Parameters:
C
- the type of terms- Parameters:
cls
- The Class structure containing type information about the searched term- Returns:
- A set containing all terms of type C of this logical structure
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getName
- Returns:
- the name of the predicate
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getPredicate
- Returns:
- the predicate of the atom
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setPredicate
Description copied from interface:Atom
Changes the predicate of the atom. Given an old Predicate po and a new predicate pn with their list of arguments types at(po) and at(pn) and the arguments of this Atom: arg(this) this method distinguishes between three cases: 1. The predicate only differ in the names, returning RSP_SUCCESS 2. The old predicates argument types is a sub-list of the new argument types then the method returns RSP_INCOMPLETE and the atoms isComplete() method returns false 3. The new predicates argument types is a sub-list of the old argument types then the method returns RSP_TRUNCATED and the arguments of this atom are truncated too and isComplete() returns true. 4. The old and new predicates' argument types differ then the list of arguments of the atom get cleared and isComplete() returns false.- Parameters:
predicate
- some predicate- Returns:
- Depends on the cases described above: 1. RSP_SUCCESS 2. RSP_INCOMPLETE 3. RSP_TRUNCATED 4. RSP_CLEARED
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addArgument
Description copied from interface:Atom
Adds an argument to the atom's argument list- Parameters:
arg
- The next argument- Throws:
LanguageException
- If the language does not support arguments for their constructs.
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getArguments
- Returns:
- A list containing all the arguments of this specific atom
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isComplete
public boolean isComplete()- Returns:
- true if the size of the argument list is equal to the arity of the predicate
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compareTo
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cloneWithAddedTerm
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 classASPLiteral
- Parameters:
term
- the new argument.- Returns:
- A copy of the literal containing the given term as new argument.
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getAtom
- Specified by:
getAtom
in classASPLiteral
- Returns:
- The atom representing the literal.
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complement
- Specified by:
complement
in interfaceInvertable
- Specified by:
complement
in classASPLiteral
- Returns:
- the complement of this formula.
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substitute
Description copied from interface:ComplexLogicalFormula
Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.- Specified by:
substitute
in interfaceComplexLogicalFormula
- Specified by:
substitute
in classASPBodyElement
- Parameters:
v
- the term to be substituted.t
- the term to substitute.- Returns:
- a formula where every occurrence of "v" is replaced by "t".
- Throws:
IllegalArgumentException
- if "v" and "t" are of different sorts
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toString
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hashCode
public int hashCode()- Specified by:
hashCode
in interfaceSimpleLogicalFormula
- Overrides:
hashCode
in classObject
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equals
- Specified by:
equals
in interfaceSimpleLogicalFormula
- Overrides:
equals
in classObject
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