com.bigdata.gom.gpo

Class LinkSet

java.lang.Object

com.bigdata.gom.gpo.LinkSet

All Implemented Interfaces:

ILinkSet, Iterable<IGPO>, Collection<IGPO>, Set<IGPO>

public class LinkSet
extends Object
implements ILinkSet

A (forward or reverse) link set.

Author:

Martyn Cutcher, Bryan Thompson FIXME We should materialize the link set unless the cardinality is excessive. This applies in both the forward and reverse direction. We will need a means to obtain a "DESCRIBE" of a resource (complete set of attributes, forward, and reverse links) and a "SKETCH" of a resource (cardinality counts only when a forward or reverse link set is large and otherwise they are inlined as well into the sketch).

Constructor Summary

Constructors

Constructor and Description
LinkSet(IGPO owner, org.openrdf.model.URI linkProperty, boolean linksIn)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(IGPO arg)
boolean	addAll(Collection<? extends IGPO> arg)
void	clear()
boolean	contains(Object arg)
boolean	containsAll(Collection<?> arg0)
String	encode(org.openrdf.model.Resource v) Encode a URL, Literal, or blank node for inclusion in a SPARQL query to be sent to the remote service.
org.openrdf.model.URI	getLinkProperty() The name of the property that the members of the link set use to point to the generic object that is collecting this link set.
IGPO	getOwner() The generic object that is being pointed at by the members of the link set.
boolean	isEmpty()
boolean	isLinkSetIn() true iff this link set models the links into the owner (edges in) and false iff this link set models the links out of the owner (edges out).
Iterator<IGPO>	iterator()
<C> Iterator<C>	iterator(Class<C> theClassOrInterface) Returns an Iterator that will visit objects that are instances of the specificed class or interface (the backing IGPO objects are wrapped by a suitable IGenericSkin).
boolean	remove(Object obj)
boolean	removeAll(Collection<?> arg0)
boolean	retainAll(Collection<?> arg0)
int	size() The #of members in the link set.
long	sizeLong()
<C> Iterator<C>	statements()
Object[]	toArray() Eagerly streams materialized objects into an array
<T> T[]	toArray(T[] arg0)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bigdata.gom.gpo.ILinkSet

equals

Methods inherited from interface java.util.Set

hashCode

Constructor Detail

LinkSet

public LinkSet(IGPO owner,
       org.openrdf.model.URI linkProperty,
       boolean linksIn)

Parameters:

owner - The IGPO that is the head of the link set.

linkProperty - The predicate that collects this link set.

linksIn - true iff this is a reverse link set.

Method Detail

getLinkProperty

public org.openrdf.model.URI getLinkProperty()

Description copied from interface: ILinkSet

The name of the property that the members of the link set use to point to the generic object that is collecting this link set.

Specified by:

getLinkProperty in interface ILinkSet

getOwner

public IGPO getOwner()

Description copied from interface: ILinkSet

The generic object that is being pointed at by the members of the link set.

Specified by:

getOwner in interface ILinkSet

isLinkSetIn

public boolean isLinkSetIn()

Description copied from interface: ILinkSet

true iff this link set models the links into the owner (edges in) and false iff this link set models the links out of the owner (edges out).

Specified by:

isLinkSetIn in interface ILinkSet

iterator

public <C> Iterator<C> iterator(Class<C> theClassOrInterface)

Description copied from interface: ILinkSet

Returns an Iterator that will visit objects that are instances of the specificed class or interface (the backing IGPO objects are wrapped by a suitable IGenericSkin).

Specified by:

iterator in interface ILinkSet

size

public int size()

Description copied from interface: ILinkSet

The #of members in the link set.

Specified by:

size in interface ILinkSet

Specified by:

size in interface Collection<IGPO>

Specified by:

size in interface Set<IGPO>

sizeLong

public long sizeLong()

Specified by:

sizeLong in interface ILinkSet

add

public boolean add(IGPO arg)

Specified by:

add in interface Collection<IGPO>

Specified by:

add in interface Set<IGPO>

addAll

public boolean addAll(Collection<? extends IGPO> arg)

Specified by:

addAll in interface Collection<IGPO>

Specified by:

addAll in interface Set<IGPO>

clear

public void clear()

Specified by:

clear in interface Collection<IGPO>

Specified by:

clear in interface Set<IGPO>

contains

public boolean contains(Object arg)

Specified by:

contains in interface Collection<IGPO>

Specified by:

contains in interface Set<IGPO>

containsAll

public boolean containsAll(Collection<?> arg0)

Specified by:

containsAll in interface Collection<IGPO>

Specified by:

containsAll in interface Set<IGPO>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<IGPO>

Specified by:

isEmpty in interface Set<IGPO>

encode

public String encode(org.openrdf.model.Resource v)

Encode a URL, Literal, or blank node for inclusion in a SPARQL query to be sent to the remote service.

Parameters:

v - The resource.

Returns:

The encoded representation of the resource.

See Also:

ObjectMgrModel.encode(Resource)

iterator

public Iterator<IGPO> iterator()

Specified by:

iterator in interface Iterable<IGPO>

Specified by:

iterator in interface Collection<IGPO>

Specified by:

iterator in interface Set<IGPO>

remove

public boolean remove(Object obj)

Specified by:

remove in interface Collection<IGPO>

Specified by:

remove in interface Set<IGPO>

removeAll

public boolean removeAll(Collection<?> arg0)

Specified by:

removeAll in interface Collection<IGPO>

Specified by:

removeAll in interface Set<IGPO>

retainAll

public boolean retainAll(Collection<?> arg0)

Specified by:

retainAll in interface Collection<IGPO>

Specified by:

retainAll in interface Set<IGPO>

toArray

public Object[] toArray()

Eagerly streams materialized objects into an array

Specified by:

toArray in interface Collection<IGPO>

Specified by:

toArray in interface Set<IGPO>

toArray

public <T> T[] toArray(T[] arg0)

Specified by:

toArray in interface Collection<IGPO>

Specified by:

toArray in interface Set<IGPO>

statements

public <C> Iterator<C> statements()

Specified by:

statements in interface ILinkSet