org.semanticweb.owlapi.reasoner.impl

Class DefaultNode<E extends OWLObject>

java.lang.Object

org.semanticweb.owlapi.reasoner.impl.DefaultNode<E>

Type Parameters:

E - the type of entities in the node

All Implemented Interfaces:

Iterable<E>, Node<E>

Direct Known Subclasses:

OWLClassNode, OWLDataPropertyNode, OWLDatatypeNode, OWLNamedIndividualNode, OWLObjectPropertyNode

public abstract class DefaultNode<E extends OWLObject>
extends Object
implements Node<E>

Author:

Matthew Horridge, The University of Manchester, Information Management Group, Date: 05-Dec-2009

Field Summary

Fields

Modifier and Type	Field and Description
protected static OWLClass	BOTTOM_CLASS
protected static OWLDataPropertyNode	BOTTOM_DATA_NODE
protected static OWLDataProperty	BOTTOM_DATA_PROPERTY
protected static OWLClassNode	BOTTOM_NODE
protected static OWLObjectPropertyNode	BOTTOM_OBJECT_NODE
protected static OWLObjectProperty	BOTTOM_OBJECT_PROPERTY
protected static OWLClass	TOP_CLASS
protected static OWLDataPropertyNode	TOP_DATA_NODE
protected static OWLDataProperty	TOP_DATA_PROPERTY
protected static OWLDatatype	TOP_DATATYPE
protected static OWLClassNode	TOP_NODE
protected static OWLObjectPropertyNode	TOP_OBJECT_NODE
protected static OWLObjectProperty	TOP_OBJECT_PROPERTY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DefaultNode()
	DefaultNode(E entity)
	DefaultNode(Set<E> entities)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(E entity)
boolean	contains(E entity) Determines if this node contains the specified entity.
boolean	equals(Object obj)
protected abstract E	getBottomEntity()
Set<E>	getEntities() Gets the entities contained in this node.
Set<E>	getEntitiesMinus(E E) Gets the entities contained in this node minus the specified entitie e.
Set<E>	getEntitiesMinusBottom() Gets the entities contained in this node minus the bottom entity.
Set<E>	getEntitiesMinusTop() Gets the entities contained in this node minus the top entity.
E	getRepresentativeElement() Gets one of the entities contained in this entity set.
int	getSize() Gets the number of entities contained in this Node.
protected abstract E	getTopEntity()
int	hashCode()
boolean	isBottomNode() Determines if this node represents the bottom node (in a hierarchy).
boolean	isSingleton() Determines if this Node contains just one entity.
boolean	isTopNode() Determines if this node represents the top node (in a hierarchy).
Iterator<E>	iterator()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

TOP_CLASS

protected static final OWLClass TOP_CLASS

TOP_NODE

protected static final OWLClassNode TOP_NODE

BOTTOM_CLASS

protected static final OWLClass BOTTOM_CLASS

BOTTOM_NODE

protected static final OWLClassNode BOTTOM_NODE

TOP_DATA_PROPERTY

protected static final OWLDataProperty TOP_DATA_PROPERTY

TOP_DATA_NODE

protected static final OWLDataPropertyNode TOP_DATA_NODE

BOTTOM_DATA_PROPERTY

protected static final OWLDataProperty BOTTOM_DATA_PROPERTY

BOTTOM_DATA_NODE

protected static final OWLDataPropertyNode BOTTOM_DATA_NODE

TOP_DATATYPE

protected static final OWLDatatype TOP_DATATYPE

TOP_OBJECT_PROPERTY

protected static final OWLObjectProperty TOP_OBJECT_PROPERTY

TOP_OBJECT_NODE

protected static final OWLObjectPropertyNode TOP_OBJECT_NODE

BOTTOM_OBJECT_PROPERTY

protected static final OWLObjectProperty BOTTOM_OBJECT_PROPERTY

BOTTOM_OBJECT_NODE

protected static final OWLObjectPropertyNode BOTTOM_OBJECT_NODE

Constructor Detail

DefaultNode

public DefaultNode(E entity)

Parameters:

entity - the entity to add

DefaultNode

public DefaultNode(Set<E> entities)

Parameters:

entities - the set of entities to add

DefaultNode

protected DefaultNode()

Method Detail

getTopEntity

protected abstract E getTopEntity()

getBottomEntity

protected abstract E getBottomEntity()

add

public void add(E entity)

Parameters:

entity - entity to be added

isTopNode

public boolean isTopNode()

Description copied from interface: Node

Determines if this node represents the top node (in a hierarchy). For a named class node, the top node is the node that contains owl:Thing. For an object property node, the top node is the node that contains owl:topObjectProperty. For a data property node, the top node is the node that contains owl:topDataProperty

Specified by:

isTopNode in interface Node<E extends OWLObject>

Returns:

true if this node is an OWLClass node and it contains owl:Thing.
true if this node is an OWLObjectProperty node and it contains owl:topObjectProperty.
true if this node is an OWLDataProperty node and it contains owl:topDataProperty.
false if none of the above.

isBottomNode

public boolean isBottomNode()

Description copied from interface: Node

Determines if this node represents the bottom node (in a hierarchy). For a named class node, the bottom node is the node that contains owl:Nothing. For an object property node, the bottom node is the node that contains owl:bottomObjectProperty. For a data property node, the bottom node is the node that contains owl:bottomDataProperty

Specified by:

isBottomNode in interface Node<E extends OWLObject>

Returns:

true if this node is an OWLClass node and it contains owl:Nothing.
true if this node is an OWLObjectProperty node and it contains owl:bottomObjectProperty.
true if this node is an OWLDataProperty node and it contains owl:bottomDataProperty.
false if none of the above.

getEntities

public Set<E> getEntities()

Description copied from interface: Node

Gets the entities contained in this node. The entities are equivalent to each other.

Specified by:

getEntities in interface Node<E extends OWLObject>

Returns:

The set of entities contained in this Node.

getSize

public int getSize()

Description copied from interface: Node

Gets the number of entities contained in this Node.

Specified by:

getSize in interface Node<E extends OWLObject>

Returns:

The number of entities contained in this node.

contains

public boolean contains(E entity)

Description copied from interface: Node

Determines if this node contains the specified entity.

Specified by:

contains in interface Node<E extends OWLObject>

Parameters:

entity - The entity to check for

Returns:

true if this node contains entity, or false if this node does not contain entity

getEntitiesMinus

public Set<E> getEntitiesMinus(E E)

Description copied from interface: Node

Gets the entities contained in this node minus the specified entitie e. This essentially returns the entities that are returned by Node.getEntities() minus the specified entity e

Specified by:

getEntitiesMinus in interface Node<E extends OWLObject>

Parameters:

E - The entity that, is contained within this node, but should not be included in the return set.

Returns:

The set of entities that are contained in this node minus the specified entity, e. If e is not contained within this node then the full set of entities returned is the same as that returned by Node.getEntities()

getEntitiesMinusTop

public Set<E> getEntitiesMinusTop()

Description copied from interface: Node

Gets the entities contained in this node minus the top entity. For a node of named classes the top entity is owl:Thing. For a node of object properties the top entity is owl:topObjectProperty. For a node of data properties the top entity is owl:topDataProperty

Specified by:

getEntitiesMinusTop in interface Node<E extends OWLObject>

Returns:

The set of entities contained within this node minus the top entity. If this node does not contain the top entity then the set of entities returned is the same as that returned by Node.getEntities().

getEntitiesMinusBottom

public Set<E> getEntitiesMinusBottom()

Description copied from interface: Node

Gets the entities contained in this node minus the bottom entity. For a node of named classes the bottom entity is owl:Nothing. For a node of object properties the bottom entity is owl:bottomObjectProperty. For a node of data properties the bottom entity is owl:bottomDataProperty

Specified by:

getEntitiesMinusBottom in interface Node<E extends OWLObject>

Returns:

The set of entities contained within this node minus the bottom entity. If this node does not contain the bottom entity then the set of entities returned is the same as that returned by Node.getEntities().

isSingleton

public boolean isSingleton()

Description copied from interface: Node

Determines if this Node contains just one entity.

Specified by:

isSingleton in interface Node<E extends OWLObject>

Returns:

true if this Node contains just one entity, otherwise false

getRepresentativeElement

public E getRepresentativeElement()

Description copied from interface: Node

Gets one of the entities contained in this entity set. If this is a singleton set it will be the one and only entity.

Specified by:

getRepresentativeElement in interface Node<E extends OWLObject>

Returns:

An entity from the set of entities contained within this node

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E extends OWLObject>

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object