org.apache.clerezza.simple.storage

Class SimpleTcProvider

java.lang.Object

org.apache.clerezza.simple.storage.SimpleTcProvider

All Implemented Interfaces:

TcProvider, WeightedTcProvider

public class SimpleTcProvider
extends Object
implements WeightedTcProvider

Constructor Summary

Constructors

Constructor and Description
SimpleTcProvider()

Method Summary

Modifier and Type	Method and Description
Graph	createGraph(IRI name) Creates an initially empty Graph with a specified name
ImmutableGraph	createImmutableGraph(IRI name, Graph triples) Creates a ImmutableGraph with a specified name
void	deleteGraph(IRI name) Deletes the ImmutableGraph or Graph of a specified name.
Graph	getGraph(IRI name) This method is used to get a Graph indifferently whether it's a ImmutableGraph or not.
ImmutableGraph	getImmutableGraph(IRI name) Get a ImmutableGraph by its name
Graph	getMGraph(IRI name) Get an Graph taht is not ImmutableGrah.
Set<IRI>	getNames(ImmutableGraph graph) get a set of the names of a ImmutableGraph
int	getWeight() Get the weight of this provider.
Set<IRI>	listGraphs() Lists the name of the Graphs available through this TcProvider indifferently whether they are mutables or immutables, implementations may take into account the security context and omit Graphs for which access is not allowed.
Set<IRI>	listImmutableGraphs() Lists the name of the ImmutableGraphs available through this TcProvider, implementations may take into account the security context and omit ImmutableGraphs for which access is not allowed.
Set<IRI>	listMGraphs() Lists the name of the Graphs available through this TcProvider that are not ImmutableGraph, implementations may take into account the security context and omit Graphs for which access is not allowed.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleTcProvider

public SimpleTcProvider()

Method Detail

createImmutableGraph

public ImmutableGraph createImmutableGraph(IRI name,
                                           Graph triples)
                                    throws EntityAlreadyExistsException

Description copied from interface: TcProvider

Creates a ImmutableGraph with a specified name

Specified by:

createImmutableGraph in interface TcProvider

Parameters:

name - the name of the ImmutableGraph to be created

triples - the triples of the new ImmutableGraph

Returns:

the newly created ImmutableGraph

Throws:

EntityAlreadyExistsException - if a ImmutableGraph with the specified name already exists

createGraph

public Graph createGraph(IRI name)
                  throws EntityAlreadyExistsException

Description copied from interface: TcProvider

Creates an initially empty Graph with a specified name

Specified by:

createGraph in interface TcProvider

Parameters:

name - names the new Graph

Returns:

the newly created Graph

Throws:

EntityAlreadyExistsException - if an Graph with the specified name already exists

deleteGraph

public void deleteGraph(IRI name)
                 throws NoSuchEntityException,
                        EntityUndeletableException

Description copied from interface: TcProvider

Deletes the ImmutableGraph or Graph of a specified name. If name references a ImmutableGraph and the ImmutableGraph has other names, it will still be available with those other names.

Specified by:

deleteGraph in interface TcProvider

Parameters:

name - the entity to be removed

Throws:

NoSuchEntityException - if name doesn't refer to a ImmutableGraph or an Graph.

EntityUndeletableException - if the specified ImmutableGraph is undeletable

getImmutableGraph

public ImmutableGraph getImmutableGraph(IRI name)
                                 throws NoSuchEntityException

Description copied from interface: TcProvider

Get a ImmutableGraph by its name

Specified by:

getImmutableGraph in interface TcProvider

Parameters:

name - the name of the ImmutableGraph

Returns:

the ImmutableGraph with the specified name

Throws:

NoSuchEntityException - if there is no ImmutableGraph with the specified name

getMGraph

public Graph getMGraph(IRI name)
                throws NoSuchEntityException

Description copied from interface: TcProvider

Get an Graph taht is not ImmutableGrah. The instances returned in different invocations are equals.

Specified by:

getMGraph in interface TcProvider

Parameters:

name - the name of the Graph

Returns:

Graph with the specified name

Throws:

NoSuchEntityException - if there is no Graph with the specified name

getNames

public Set<IRI> getNames(ImmutableGraph graph)

Description copied from interface: TcProvider

get a set of the names of a ImmutableGraph

Specified by:

getNames in interface TcProvider

Returns:

the set names of ImmutableGraph, the set is empty if ImmutableGraph is unknown

getGraph

public Graph getGraph(IRI name)
               throws NoSuchEntityException

Description copied from interface: TcProvider

This method is used to get a Graph indifferently whether it's a ImmutableGraph or not. If the name names an Graph the result is the same as when invoking getMGraph with that argument, analogously for ImmutableGraphS the method returns an instance equals to what getImmutableGraph would return.

Specified by:

getGraph in interface TcProvider

Parameters:

name - the name of the ImmutableGraph or Graph

Returns:

the ImmutableGraph or Graph

Throws:

NoSuchEntityException - if there is no ImmutableGraph or Graph with the specified name

getWeight

public int getWeight()

Description copied from interface: WeightedTcProvider

Get the weight of this provider. TcManager will prioritize TcProviders with greater weight.

Specified by:

getWeight in interface WeightedTcProvider

Returns:

a positive number indicating the weight of the provider

listImmutableGraphs

public Set<IRI> listImmutableGraphs()

Description copied from interface: TcProvider

Lists the name of the ImmutableGraphs available through this TcProvider, implementations may take into account the security context and omit ImmutableGraphs for which access is not allowed.

Specified by:

listImmutableGraphs in interface TcProvider

Returns:

the list of ImmutableGraphs

listMGraphs

public Set<IRI> listMGraphs()

Description copied from interface: TcProvider

Lists the name of the Graphs available through this TcProvider that are not ImmutableGraph, implementations may take into account the security context and omit Graphs for which access is not allowed.

Specified by:

listMGraphs in interface TcProvider

Returns:

the list of Graphs

listGraphs

public Set<IRI> listGraphs()

Description copied from interface: TcProvider

Lists the name of the Graphs available through this TcProvider indifferently whether they are mutables or immutables, implementations may take into account the security context and omit Graphs for which access is not allowed.

Specified by:

listGraphs in interface TcProvider

Returns:

the list of Graphs