java.lang.Object
- net.sf.tweety.commons.BeliefSet<T,S>

Type Parameters:

T - The type of the beliefs in this belief set.

S - The type of signature attached to this belief set.

All Implemented Interfaces:

Iterable<T>, Collection<T>, BeliefBase
```
public abstract class BeliefSet<T extends Formula,S extends Signature>
extends Object
implements BeliefBase, Collection<T>
```
This class models a belief set, i.e. a set of formulae of some formalism, and a signature.

Author:

Matthias Thimm, Tim Janus, Anna Gessler

Field Summary

Fields
Modifier and Type	Field	Description
`static boolean`	`EQUALS_USES_SIGNATURE`	Flag that determines whether `Object.equals(Object)` checks only for equality of the beliefs in the belief sets or whether it also checks for equality of the signatures attached to the belief sets.
`protected S`	`signature`	The signature of this belief base.

Constructor Summary

Constructors
Constructor	Description
`BeliefSet()`	Creates a new (empty) belief set.
`BeliefSet(Collection<? extends T> c)`	Creates a new belief set with the given collection of formulae.
`BeliefSet(S sig)`	Creates a new belief set with the given type of signature.

Method Summary

Modifier and Type	Method	Description
`boolean`	`add(T f)`
`boolean`	`addAll(Collection<? extends T> c)`
`void`	`clear()`
`boolean`	`contains(Object o)`
`boolean`	`containsAll(Collection<?> c)`
`boolean`	`equals(Object obj)`
`S`	`getSignature()`	Returns a copy of the signature that is attached to his belief base (it is always equal to or larger than `BeliefBase.getMinimalSignature()`).
`int`	`hashCode()`
`protected Set<T>`	`instantiateSet()`	Instantiates the set which is used as data holder for the belief set.
`protected abstract S`	`instantiateSignature()`	Instantiates the signature which is attached to the belief base.
`boolean`	`isEmpty()`
`Iterator<T>`	`iterator()`
`boolean`	`remove(Object o)`
`boolean`	`removeAll(Collection<?> c)`
`boolean`	`retainAll(Collection<?> c)`
`void`	`setSignature(S sig)`	Sets the signature that is attached to his belief base to a copy of the given signature.
`int`	`size()`
`Object[]`	`toArray()`
`<R> R[]`	`toArray(R[] a)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.tweety.commons.BeliefBase
getMinimalSignature

Methods inherited from interface java.util.Collection
parallelStream, removeIf, spliterator, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

- Field Detail
  - EQUALS_USES_SIGNATURE
```
public static final boolean EQUALS_USES_SIGNATURE
```
    Flag that determines whether Object.equals(Object) checks only for equality of the beliefs in the belief sets or whether it also checks for equality of the signatures attached to the belief sets.
    
    See Also:
    
    Constant Field Values
  - signature
```
protected S extends Signature signature
```
    The signature of this belief base. It is always larger than or equal to BeliefBase.getMinimalSignature() (the signature of the language of formulas).
- Constructor Detail
  - BeliefSet
```
public BeliefSet()
```
    Creates a new (empty) belief set.
  - BeliefSet
```
public BeliefSet(Collection<? extends T> c)
```
    Creates a new belief set with the given collection of formulae.
    
    Parameters:
    
    c - a collection of formulae.
  - BeliefSet
```
public BeliefSet(S sig)
```
    Creates a new belief set with the given type of signature.
    
    Parameters:
    
    sig - a signature
- Method Detail
  - instantiateSet
```
protected Set<T> instantiateSet()
```
    Instantiates the set which is used as data holder for the belief set. Subclasses might override this method if the do not want to use HashSet as container implementation
    
    Returns:
    
    an new set
  - instantiateSignature
```
protected abstract S instantiateSignature()
```
    Instantiates the signature which is attached to the belief base.
    
    Returns:
    
    the signature of this belief base
  - getSignature
```
public S getSignature()
```
    Returns a copy of the signature that is attached to his belief base (it is always equal to or larger than BeliefBase.getMinimalSignature()).
    
    Returns:
    
    the signature of this knowledge base.
  - setSignature
```
public void setSignature(S sig)
                  throws IllegalArgumentException
```
    Sets the signature that is attached to his belief base to a copy of the given signature.
    
    Parameters:
    
    sig - a signature
    
    Throws:
    
    IllegalArgumentException - if the given signature is smaller in size than the belief base's formulas' signature.
  - add
```
public boolean add(T f)
```
    Specified by:
    
    add in interface Collection<T extends Formula>
  - addAll
```
public boolean addAll(Collection<? extends T> c)
```
    Specified by:
    
    addAll in interface Collection<T extends Formula>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Collection<T extends Formula>
  - contains
```
public boolean contains(Object o)
```
    Specified by:
    
    contains in interface Collection<T extends Formula>
  - containsAll
```
public boolean containsAll(Collection<?> c)
```
    Specified by:
    
    containsAll in interface Collection<T extends Formula>
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface Collection<T extends Formula>
    
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Specified by:
    
    equals in interface Collection<T extends Formula>
    
    Overrides:
    
    equals in class Object
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface Collection<T extends Formula>
  - iterator
```
public Iterator<T> iterator()
```
    Specified by:
    
    iterator in interface Collection<T extends Formula>
    
    Specified by:
    
    iterator in interface Iterable<T extends Formula>
  - remove
```
public boolean remove(Object o)
```
    Specified by:
    
    remove in interface Collection<T extends Formula>
  - removeAll
```
public boolean removeAll(Collection<?> c)
```
    Specified by:
    
    removeAll in interface Collection<T extends Formula>
  - retainAll
```
public boolean retainAll(Collection<?> c)
```
    Specified by:
    
    retainAll in interface Collection<T extends Formula>
  - size
```
public int size()
```
    Specified by:
    
    size in interface Collection<T extends Formula>
  - toArray
```
public Object[] toArray()
```
    Specified by:
    
    toArray in interface Collection<T extends Formula>
  - toArray
```
public <R> R[] toArray(R[] a)
```
    Specified by:
    
    toArray in interface Collection<T extends Formula>
  - toString
```
public String toString()
```
    Specified by:
    
    toString in interface BeliefBase
    
    Overrides:
    
    toString in class Object

Class BeliefSet<T extends Formula,​S extends Signature>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface net.sf.tweety.commons.BeliefBase

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Field Detail

EQUALS_USES_SIGNATURE

signature

Constructor Detail

BeliefSet

BeliefSet

BeliefSet

Method Detail

instantiateSet

instantiateSignature

getSignature

setSignature

add

addAll

clear

contains

containsAll

hashCode

equals

isEmpty

iterator

remove

removeAll

retainAll

size

toArray

toArray

toString

Class BeliefSet<T extends Formula,S extends Signature>