org.eclipse.rdf4j.sail.federation

Class Federation

java.lang.Object

org.eclipse.rdf4j.sail.federation.Federation

All Implemented Interfaces:

Executor, org.eclipse.rdf4j.http.client.HttpClientDependent, org.eclipse.rdf4j.http.client.SesameClientDependent, org.eclipse.rdf4j.http.client.SessionManagerDependent, FederatedServiceResolverClient, org.eclipse.rdf4j.repository.RepositoryResolverClient, org.eclipse.rdf4j.sail.Sail

public class Federation
extends Object
implements org.eclipse.rdf4j.sail.Sail, Executor, FederatedServiceResolverClient, org.eclipse.rdf4j.repository.RepositoryResolverClient, org.eclipse.rdf4j.http.client.HttpClientDependent, org.eclipse.rdf4j.http.client.SessionManagerDependent

Union multiple (possibly remote) Repositories into a single RDF store.

Author:

James Leigh, Arjohn Kampman

Constructor Summary

Constructors

Constructor and Description
Federation()

Method Summary

Modifier and Type	Method and Description
void	addMember(org.eclipse.rdf4j.repository.Repository member)
protected EvaluationStrategy	createEvaluationStrategy(TripleSource tripleSource, org.eclipse.rdf4j.query.Dataset dataset, FederatedServiceResolver resolver)
void	execute(Runnable command) Required by Executor interface.
protected Map<org.eclipse.rdf4j.repository.Repository,org.eclipse.rdf4j.repository.filters.RepositoryBloomFilter>	getBloomFilters() Returns the configured RepositoryBloomFilters (if any).
org.eclipse.rdf4j.sail.SailConnection	getConnection()
File	getDataDir()
org.eclipse.rdf4j.IsolationLevel	getDefaultIsolationLevel()
FederatedServiceResolver	getFederatedServiceResolver()
org.apache.http.client.HttpClient	getHttpClient()
org.eclipse.rdf4j.http.client.HttpClientSessionManager	getHttpClientSessionManager()
PrefixHashSet	getLocalPropertySpace()
protected List<org.eclipse.rdf4j.repository.Repository>	getMembers() Returns the members of this federation.
List<org.eclipse.rdf4j.IsolationLevel>	getSupportedIsolationLevels()
org.eclipse.rdf4j.model.ValueFactory	getValueFactory()
void	initialize()
boolean	isDistinct()
boolean	isReadOnly()
boolean	isWritable()
void	setBloomFilter(org.eclipse.rdf4j.repository.Repository member, org.eclipse.rdf4j.repository.filters.RepositoryBloomFilter filter) Sets an optional RepositoryBloomFilter to use with the given Repository.
void	setDataDir(File dataDir)
void	setDistinct(boolean distinct)
void	setFederatedServiceResolver(FederatedServiceResolver resolver) Overrides the FederatedServiceResolver used by this instance, but the given resolver is not shutDown when this instance is.
void	setHttpClient(org.apache.http.client.HttpClient client)
void	setHttpClientSessionManager(org.eclipse.rdf4j.http.client.HttpClientSessionManager client)
void	setLocalPropertySpace(Collection<String> localPropertySpace)
void	setReadOnly(boolean readOnly)
void	setRepositoryResolver(org.eclipse.rdf4j.repository.RepositoryResolver resolver)
void	shutDown()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.http.client.SesameClientDependent

getSesameClient, setSesameClient

Constructor Detail

Federation

public Federation()

Method Detail

getDataDir

public File getDataDir()

Specified by:

getDataDir in interface org.eclipse.rdf4j.sail.Sail

setDataDir

public void setDataDir(File dataDir)

Specified by:

setDataDir in interface org.eclipse.rdf4j.sail.Sail

getValueFactory

public org.eclipse.rdf4j.model.ValueFactory getValueFactory()

Specified by:

getValueFactory in interface org.eclipse.rdf4j.sail.Sail

isWritable

public boolean isWritable()
                   throws org.eclipse.rdf4j.sail.SailException

Specified by:

isWritable in interface org.eclipse.rdf4j.sail.Sail

Throws:

org.eclipse.rdf4j.sail.SailException

addMember

public void addMember(org.eclipse.rdf4j.repository.Repository member)

getMembers

protected List<org.eclipse.rdf4j.repository.Repository> getMembers()

Returns the members of this federation.

Returns:

unmodifiable list of federation members.

setBloomFilter

public void setBloomFilter(org.eclipse.rdf4j.repository.Repository member,
                           org.eclipse.rdf4j.repository.filters.RepositoryBloomFilter filter)

Sets an optional RepositoryBloomFilter to use with the given Repository.

Parameters:

filter - the filter to use or null to not use a filter.

getBloomFilters

protected Map<org.eclipse.rdf4j.repository.Repository,org.eclipse.rdf4j.repository.filters.RepositoryBloomFilter> getBloomFilters()

Returns the configured RepositoryBloomFilters (if any).

Returns:

unmodifiable map of repositories to bloom filters.

getLocalPropertySpace

public PrefixHashSet getLocalPropertySpace()

Returns:

PrefixHashSet or null

setLocalPropertySpace

public void setLocalPropertySpace(Collection<String> localPropertySpace)

isDistinct

public boolean isDistinct()

setDistinct

public void setDistinct(boolean distinct)

isReadOnly

public boolean isReadOnly()

setReadOnly

public void setReadOnly(boolean readOnly)

getFederatedServiceResolver

public FederatedServiceResolver getFederatedServiceResolver()

Returns:

Returns the SERVICE resolver.

setFederatedServiceResolver

public void setFederatedServiceResolver(FederatedServiceResolver resolver)

Overrides the FederatedServiceResolver used by this instance, but the given resolver is not shutDown when this instance is.

Specified by:

setFederatedServiceResolver in interface FederatedServiceResolverClient

Parameters:

reslover - The SERVICE resolver to set.

setRepositoryResolver

public void setRepositoryResolver(org.eclipse.rdf4j.repository.RepositoryResolver resolver)

Specified by:

setRepositoryResolver in interface org.eclipse.rdf4j.repository.RepositoryResolverClient

getHttpClientSessionManager

public org.eclipse.rdf4j.http.client.HttpClientSessionManager getHttpClientSessionManager()

Specified by:

getHttpClientSessionManager in interface org.eclipse.rdf4j.http.client.SesameClientDependent

Specified by:

getHttpClientSessionManager in interface org.eclipse.rdf4j.http.client.SessionManagerDependent

setHttpClientSessionManager

public void setHttpClientSessionManager(org.eclipse.rdf4j.http.client.HttpClientSessionManager client)

Specified by:

setHttpClientSessionManager in interface org.eclipse.rdf4j.http.client.SesameClientDependent

Specified by:

setHttpClientSessionManager in interface org.eclipse.rdf4j.http.client.SessionManagerDependent

getHttpClient

public org.apache.http.client.HttpClient getHttpClient()

Specified by:

getHttpClient in interface org.eclipse.rdf4j.http.client.HttpClientDependent

setHttpClient

public void setHttpClient(org.apache.http.client.HttpClient client)

Specified by:

setHttpClient in interface org.eclipse.rdf4j.http.client.HttpClientDependent

initialize

public void initialize()
                throws org.eclipse.rdf4j.sail.SailException

Specified by:

initialize in interface org.eclipse.rdf4j.sail.Sail

Throws:

org.eclipse.rdf4j.sail.SailException

shutDown

public void shutDown()
              throws org.eclipse.rdf4j.sail.SailException

Specified by:

shutDown in interface org.eclipse.rdf4j.sail.Sail

Throws:

org.eclipse.rdf4j.sail.SailException

execute

public void execute(Runnable command)

Required by Executor interface.

Specified by:

execute in interface Executor

getConnection

public org.eclipse.rdf4j.sail.SailConnection getConnection()
                                                    throws org.eclipse.rdf4j.sail.SailException

Specified by:

getConnection in interface org.eclipse.rdf4j.sail.Sail

Throws:

org.eclipse.rdf4j.sail.SailException

createEvaluationStrategy

protected EvaluationStrategy createEvaluationStrategy(TripleSource tripleSource,
                                                      org.eclipse.rdf4j.query.Dataset dataset,
                                                      FederatedServiceResolver resolver)

getSupportedIsolationLevels

public List<org.eclipse.rdf4j.IsolationLevel> getSupportedIsolationLevels()

Specified by:

getSupportedIsolationLevels in interface org.eclipse.rdf4j.sail.Sail

getDefaultIsolationLevel

public org.eclipse.rdf4j.IsolationLevel getDefaultIsolationLevel()

Specified by:

getDefaultIsolationLevel in interface org.eclipse.rdf4j.sail.Sail