Package net.sf.tweety.arg.adf.syntax.adf

Class GraphAbstractDialecticalFramework

java.lang.Object

net.sf.tweety.arg.adf.syntax.adf.GraphAbstractDialecticalFramework

All Implemented Interfaces:

AbstractDialecticalFramework, net.sf.tweety.commons.BeliefBase

public final class GraphAbstractDialecticalFramework
extends Object
implements AbstractDialecticalFramework

Internally represented as a graph-like structure. This allows for efficient queries at the cost of a bit more memory overhead, since every argument maintains references to its parents and children.

Author:

Mathias Hofer

Nested Class Summary

Nested classes/interfaces inherited from interface net.sf.tweety.arg.adf.syntax.adf.AbstractDialecticalFramework

AbstractDialecticalFramework.Signature

Method Summary

Modifier and Type	Method	Description
Set<Argument>	children(Argument parent)
boolean	contains(Argument arg)
boolean	equals(Object obj)
AcceptanceCondition	getAcceptanceCondition(Argument argument)	Guaranteed to be non-null if the ADF contains the argument.
Set<Argument>	getArguments()
int	hashCode()
int	incomingDegree(Argument arg)
int	kBipolar()	Returns the count k of non-bipolar links, which makes this ADF k-bipolar.
Link	link(Argument parent, Argument child)	Computes the link (parent, child) iff necessary and returns it afterwards.
Set<Link>	links()	If the caller just consumes some of the links, the method AbstractDialecticalFramework.linksStream() should be preferred to this one.
Set<Link>	linksFrom(Argument parent)
Stream<Link>	linksStream()	If the caller just consumes some links, this method should be used.
Set<Link>	linksTo(Argument child)
int	outgoingDegree(Argument arg)
Set<Argument>	parents(Argument child)
int	size()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.tweety.arg.adf.syntax.adf.AbstractDialecticalFramework

bipolar, getMinimalSignature

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

toString

Method Detail

getArguments

public Set<Argument> getArguments()

Specified by:

getArguments in interface AbstractDialecticalFramework

Returns:

an unmodifiable set of all the arguments

size

public int size()

Specified by:

size in interface AbstractDialecticalFramework

links

public Set<Link> links()

Description copied from interface: AbstractDialecticalFramework

If the caller just consumes some of the links, the method AbstractDialecticalFramework.linksStream() should be preferred to this one. Depending on the implementation, the links may be computed lazily and therefore we may avoid unnecessary computation.

Specified by:

links in interface AbstractDialecticalFramework

Returns:

an unmodifiable set of all the links

linksStream

public Stream<Link> linksStream()

Description copied from interface: AbstractDialecticalFramework

If the caller just consumes some links, this method should be used. Depending on the implementation, the links may be computed lazily and therefore we may avoid unnecessary computation.

Specified by:

linksStream in interface AbstractDialecticalFramework

Returns:

a stream of the links of this adf

link

public Link link(Argument parent,
                 Argument child)

Description copied from interface: AbstractDialecticalFramework

Computes the link (parent, child) iff necessary and returns it afterwards.

Specified by:

link in interface AbstractDialecticalFramework

Parameters:

parent - the parent

child - the child

Returns:

the link (parent, child)

contains

public boolean contains(Argument arg)

Specified by:

contains in interface AbstractDialecticalFramework

linksTo

public Set<Link> linksTo(Argument child)

Specified by:

linksTo in interface AbstractDialecticalFramework

Parameters:

child - the child

Returns:

a set of links (parent, child)

linksFrom

public Set<Link> linksFrom(Argument parent)

Specified by:

linksFrom in interface AbstractDialecticalFramework

Parameters:

parent - the parent

Returns:

a set of links (parent, child)

parents

public Set<Argument> parents(Argument child)

Specified by:

parents in interface AbstractDialecticalFramework

children

public Set<Argument> children(Argument parent)

Specified by:

children in interface AbstractDialecticalFramework

getAcceptanceCondition

public AcceptanceCondition getAcceptanceCondition(Argument argument)

Description copied from interface: AbstractDialecticalFramework

Guaranteed to be non-null if the ADF contains the argument.

Specified by:

getAcceptanceCondition in interface AbstractDialecticalFramework

Parameters:

argument - some argument of this ADF

Returns:

the found acceptance condition, never null

incomingDegree

public int incomingDegree(Argument arg)

Specified by:

incomingDegree in interface AbstractDialecticalFramework

outgoingDegree

public int outgoingDegree(Argument arg)

Specified by:

outgoingDegree in interface AbstractDialecticalFramework

kBipolar

public int kBipolar()

Description copied from interface: AbstractDialecticalFramework

Returns the count k of non-bipolar links, which makes this ADF k-bipolar.

Specified by:

kBipolar in interface AbstractDialecticalFramework

Returns:

k

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object