Package org.eclipse.rdf4j.query.impl

Class SimpleDataset

java.lang.Object

org.eclipse.rdf4j.query.impl.SimpleDataset

All Implemented Interfaces:

Serializable, Dataset

Direct Known Subclasses:

DatasetImpl

public class SimpleDataset
extends Object
implements Dataset, Serializable

A simple implementation of the Dataset interface.

Author:

Arjohn Kampman, James Leigh

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
SimpleDataset()

Method Summary

Modifier and Type	Method	Description
void	addDefaultGraph(IRI graphURI)	Adds a graph URI to the set of default graph URIs.
void	addDefaultRemoveGraph(IRI graphURI)	Adds a graph URI to the set of default remove graph URIs.
void	addNamedGraph(IRI graphURI)	Adds a graph URI to the set of named graph URIs.
void	clear()	Removes all graph URIs (both default and named) from this dataset.
boolean	equals(Object o)
Set<IRI>	getDefaultGraphs()	Gets the default graph URIs of this dataset.
IRI	getDefaultInsertGraph()	Gets the default insert graph URI of this dataset.
Set<IRI>	getDefaultRemoveGraphs()	Gets the default remove graph URIs of this dataset.
Set<IRI>	getNamedGraphs()	Gets the (unmodifiable) set of named graph URIs.
int	hashCode()
boolean	removeDefaultGraph(IRI graphURI)	Removes a graph URI from the set of default graph URIs.
boolean	removeDefaultRemoveGraph(IRI graphURI)	Removes a graph URI from the set of default remove graph URIs.
boolean	removeNamedGraph(IRI graphURI)	Removes a graph URI from the set of named graph URIs.
void	setDefaultInsertGraph(IRI defaultInsertGraph)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleDataset

public SimpleDataset()

Method Detail

getDefaultRemoveGraphs

public Set<IRI> getDefaultRemoveGraphs()

Description copied from interface: Dataset

Gets the default remove graph URIs of this dataset. An empty set indicates the the store's default behaviour should be used, if not otherwise indicated in the operation.

Specified by:

getDefaultRemoveGraphs in interface Dataset

addDefaultRemoveGraph

public void addDefaultRemoveGraph(IRI graphURI)

Adds a graph URI to the set of default remove graph URIs.

removeDefaultRemoveGraph

public boolean removeDefaultRemoveGraph(IRI graphURI)

Removes a graph URI from the set of default remove graph URIs.

Returns:

true if the URI was removed from the set, false if the set did not contain the URI.

getDefaultInsertGraph

public IRI getDefaultInsertGraph()

Description copied from interface: Dataset

Gets the default insert graph URI of this dataset. An null value indicates that the store's default behaviour should be used, if not otherwise indicated in the operation.

Specified by:

getDefaultInsertGraph in interface Dataset

Returns:

Returns the default insert graph.

setDefaultInsertGraph

public void setDefaultInsertGraph(IRI defaultInsertGraph)

Parameters:

defaultInsertGraph - The default insert graph to used.

getDefaultGraphs

public Set<IRI> getDefaultGraphs()

Description copied from interface: Dataset

Gets the default graph URIs of this dataset. An empty default graph set and a non-empty named graph set indicates that the default graph is an empty graph. However, if both the default graph set and the named graph set are empty, that indicates that the store's default behaviour should be used.

Specified by:

getDefaultGraphs in interface Dataset

addDefaultGraph

public void addDefaultGraph(IRI graphURI)

Adds a graph URI to the set of default graph URIs.

removeDefaultGraph

public boolean removeDefaultGraph(IRI graphURI)

Removes a graph URI from the set of default graph URIs.

Returns:

true if the URI was removed from the set, false if the set did not contain the URI.

getNamedGraphs

public Set<IRI> getNamedGraphs()

Gets the (unmodifiable) set of named graph URIs.

Specified by:

getNamedGraphs in interface Dataset

addNamedGraph

public void addNamedGraph(IRI graphURI)

Adds a graph URI to the set of named graph URIs.

removeNamedGraph

public boolean removeNamedGraph(IRI graphURI)

Removes a graph URI from the set of named graph URIs.

Returns:

true if the URI was removed from the set, false if the set did not contain the URI.

clear

public void clear()

Removes all graph URIs (both default and named) from this dataset.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object