Package net.sf.tweety.logics.pl.syntax

Class AssociativePlFormula

java.lang.Object

net.sf.tweety.logics.pl.syntax.PlFormula

net.sf.tweety.logics.pl.syntax.AssociativePlFormula

All Implemented Interfaces:

java.lang.Iterable<PlFormula>, java.util.Collection<PlFormula>, java.util.List<PlFormula>, Formula, AssociativeFormulaSupport.AssociativeSupportBridge, AssociativeFormula<PlFormula>, ClassicalFormula, Conjunctable, Disjunctable, Invertable, ProbabilityAware, SimpleLogicalFormula

Direct Known Subclasses:

Conjunction, Disjunction, ExclusiveDisjunction

public abstract class AssociativePlFormula
extends PlFormula
implements AssociativeFormula<PlFormula>, AssociativeFormulaSupport.AssociativeSupportBridge, java.util.Collection<PlFormula>

This class captures the common functionalities of formulas with an associative operation like conjunction, disjunction, etc.

Author:

Matthias Thimm, Tim Janus

Constructor Summary

Constructors

Constructor	Description
AssociativePlFormula()	Creates a new (empty) associative formula.
AssociativePlFormula(java.util.Collection<? extends PlFormula> formulas)	Creates a new associative formula with the given inner formulas.
AssociativePlFormula(PlFormula first, PlFormula second)	Creates a new associative formula with the two given formulae

Method Summary

Modifier and Type	Method	Description
void	add(int index, PlFormula element)
boolean	add(PlFormula f)
boolean	add(PlFormula... formulas)	Adds the specified elements to the end of this collection (optional operation).
boolean	addAll(int index, java.util.Collection<? extends PlFormula> c)
boolean	addAll(java.util.Collection<? extends PlFormula> c)
void	clear()
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection<?> c)
Signature	createEmptySignature()
boolean	equals(java.lang.Object obj)
PlFormula	get(int index)
java.util.Set<Proposition>	getAtoms()	Processes the set of all atoms which appear in this formula
java.util.List<PlFormula>	getFormulas()
<C extends SimpleLogicalFormula> java.util.Set<C>	getFormulas(java.lang.Class<C> cls)	Process the formulas of type C that are children of this associative formula
java.util.Set<PlFormula>	getLiterals()	Returns all literals, i.e.
java.util.Set<PlPredicate>	getPredicates()	Processes the set of all predicates which appear in this formula
PlSignature	getSignature()	Returns the signature of the language of this formula.
int	hashCode()
int	indexOf(java.lang.Object o)
boolean	isEmpty()
java.util.Iterator<PlFormula>	iterator()
int	lastIndexOf(java.lang.Object o)
java.util.ListIterator<PlFormula>	listIterator()
java.util.ListIterator<PlFormula>	listIterator(int index)
int	numberOfOccurrences(Proposition p)	Returns the number of occurrences of the given proposition within this formula
PlFormula	remove(int index)
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection<?> c)
boolean	retainAll(java.util.Collection<?> c)
PlFormula	set(int index, PlFormula element)
int	size()
java.util.List<PlFormula>	subList(int fromIndex, int toIndex)
java.lang.Object[]	toArray()
java.lang.Object[]	toArray(java.lang.Object[] a)
java.lang.String	toString()

Methods inherited from class net.sf.tweety.logics.pl.syntax.PlFormula

clone, collapseAssociativeFormulas, combineWithAnd, combineWithOr, complement, getModels, getModels, getPredicateCls, getPrimeImplicants, getUniformProbability, isClause, isConjunctiveClause, isLiteral, replace, resolvableWith, resolveWith, toBlakeCanonicalForm, toCnf, toDnf, toNnf, trim

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.tweety.logics.commons.syntax.AssociativeFormulaSupport.AssociativeSupportBridge

createEmptyFormula, getEmptySymbol, getOperatorSymbol

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

replaceAll, sort, spliterator

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

clone, getPredicateCls, isLiteral

Constructor Detail

AssociativePlFormula

public AssociativePlFormula()

Creates a new (empty) associative formula.

AssociativePlFormula

public AssociativePlFormula(java.util.Collection<? extends PlFormula> formulas)

Creates a new associative formula with the given inner formulas.

Parameters:

formulas - a collection of formulas.

AssociativePlFormula

public AssociativePlFormula(PlFormula first,
                            PlFormula second)

Creates a new associative formula with the two given formulae

Parameters:

first - a propositional formula.

second - a propositional formula.

Method Detail

getPredicates

public java.util.Set<PlPredicate> getPredicates()

Description copied from interface: SimpleLogicalFormula

Processes the set of all predicates which appear in this formula

Specified by:

getPredicates in interface SimpleLogicalFormula

Specified by:

getPredicates in class PlFormula

Returns:

all predicates that appear in this formula

getFormulas

public java.util.List<PlFormula> getFormulas()

Specified by:

getFormulas in interface AssociativeFormula<PlFormula>

Returns:

all the formulas saved as childs in the associative formula

getFormulas

public <C extends SimpleLogicalFormula> java.util.Set<C> getFormulas(java.lang.Class<C> cls)

Description copied from interface: AssociativeFormula

Process the formulas of type C that are children of this associative formula

Specified by:

getFormulas in interface AssociativeFormula<PlFormula>

Type Parameters:

C - the type of formulas

Parameters:

cls - the class structure defining the type of formulas which are searched.

Returns:

A set of formulas of type C which are members of the associative formula

getAtoms

public java.util.Set<Proposition> getAtoms()

Description copied from interface: SimpleLogicalFormula

Processes the set of all atoms which appear in this formula

Specified by:

getAtoms in interface SimpleLogicalFormula

Specified by:

getAtoms in class PlFormula

Returns:

The set of all atoms

getLiterals

public java.util.Set<PlFormula> getLiterals()

Description copied from class: PlFormula

Returns all literals, i.e. all formulas of the form "a" or "!a" where "a" is a proposition, that appear in this formula.

Specified by:

getLiterals in class PlFormula

Returns:

all literals appearing in this formula.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getSignature

public PlSignature getSignature()

Description copied from interface: Formula

Returns the signature of the language of this formula.

Specified by:

getSignature in interface Formula

Overrides:

getSignature in class PlFormula

Returns:

the signature of the language of this formula.

createEmptySignature

public Signature createEmptySignature()

Specified by:

createEmptySignature in interface AssociativeFormulaSupport.AssociativeSupportBridge

Returns:

An empty signature of the language of the AssociativeFormula implementation

numberOfOccurrences

public int numberOfOccurrences(Proposition p)

Description copied from class: PlFormula

Returns the number of occurrences of the given proposition within this formula

Specified by:

numberOfOccurrences in class PlFormula

Parameters:

p - some proposition

Returns:

the number of occurrences of the given proposition within this formula

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<PlFormula>

Specified by:

hashCode in interface java.util.List<PlFormula>

Specified by:

hashCode in interface SimpleLogicalFormula

Specified by:

hashCode in class PlFormula

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Collection<PlFormula>

Specified by:

equals in interface java.util.List<PlFormula>

Specified by:

equals in interface SimpleLogicalFormula

Specified by:

equals in class PlFormula

add

public boolean add(PlFormula f)

Specified by:

add in interface java.util.Collection<PlFormula>

Specified by:

add in interface java.util.List<PlFormula>

add

public boolean add(PlFormula... formulas)

Adds the specified elements to the end of this collection (optional operation).

Parameters:

formulas - to be appended to collection

Returns:

true if all elements were added, false otherwise

addAll

public boolean addAll(java.util.Collection<? extends PlFormula> c)

Specified by:

addAll in interface java.util.Collection<PlFormula>

Specified by:

addAll in interface java.util.List<PlFormula>

clear

public void clear()

Specified by:

clear in interface java.util.Collection<PlFormula>

Specified by:

clear in interface java.util.List<PlFormula>

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection<PlFormula>

Specified by:

contains in interface java.util.List<PlFormula>

containsAll

public boolean containsAll(java.util.Collection<?> c)

Specified by:

containsAll in interface java.util.Collection<PlFormula>

Specified by:

containsAll in interface java.util.List<PlFormula>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<PlFormula>

Specified by:

isEmpty in interface java.util.List<PlFormula>

iterator

public java.util.Iterator<PlFormula> iterator()

Specified by:

iterator in interface java.util.Collection<PlFormula>

Specified by:

iterator in interface java.lang.Iterable<PlFormula>

Specified by:

iterator in interface java.util.List<PlFormula>

remove

public boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection<PlFormula>

Specified by:

remove in interface java.util.List<PlFormula>

removeAll

public boolean removeAll(java.util.Collection<?> c)

Specified by:

removeAll in interface java.util.Collection<PlFormula>

Specified by:

removeAll in interface java.util.List<PlFormula>

retainAll

public boolean retainAll(java.util.Collection<?> c)

Specified by:

retainAll in interface java.util.Collection<PlFormula>

Specified by:

retainAll in interface java.util.List<PlFormula>

size

public int size()

Specified by:

size in interface java.util.Collection<PlFormula>

Specified by:

size in interface java.util.List<PlFormula>

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection<PlFormula>

Specified by:

toArray in interface java.util.List<PlFormula>

toArray

public java.lang.Object[] toArray(java.lang.Object[] a)

Specified by:

toArray in interface java.util.Collection<PlFormula>

Specified by:

toArray in interface java.util.List<PlFormula>

add

public void add(int index,
                PlFormula element)

Specified by:

add in interface java.util.List<PlFormula>

addAll

public boolean addAll(int index,
                      java.util.Collection<? extends PlFormula> c)

Specified by:

addAll in interface java.util.List<PlFormula>

get

public PlFormula get(int index)

Specified by:

get in interface java.util.List<PlFormula>

indexOf

public int indexOf(java.lang.Object o)

Specified by:

indexOf in interface java.util.List<PlFormula>

lastIndexOf

public int lastIndexOf(java.lang.Object o)

Specified by:

lastIndexOf in interface java.util.List<PlFormula>

listIterator

public java.util.ListIterator<PlFormula> listIterator()

Specified by:

listIterator in interface java.util.List<PlFormula>

listIterator

public java.util.ListIterator<PlFormula> listIterator(int index)

Specified by:

listIterator in interface java.util.List<PlFormula>

remove

public PlFormula remove(int index)

Specified by:

remove in interface java.util.List<PlFormula>

set

public PlFormula set(int index,
                     PlFormula element)

Specified by:

set in interface java.util.List<PlFormula>

subList

public java.util.List<PlFormula> subList(int fromIndex,
                                         int toIndex)

Specified by:

subList in interface java.util.List<PlFormula>