Package org.eclipse.rdf4j.federated.repository

Class FedXRepository

java.lang.Object

org.eclipse.rdf4j.repository.base.AbstractRepository

org.eclipse.rdf4j.repository.sail.SailRepository

org.eclipse.rdf4j.federated.repository.FedXRepository

All Implemented Interfaces:

HttpClientDependent, SessionManagerDependent, FederatedServiceResolverClient, Repository, RepositoryResolverClient

public class FedXRepository
extends SailRepository

A special SailRepository which performs the actions as defined in FedXRepositoryConnection.

Author:

as

Field Summary

Fields inherited from class org.eclipse.rdf4j.repository.base.AbstractRepository

logger

Constructor Summary

Constructors

Constructor	Description
FedXRepository(FedX federation, FedXConfig config)

Method Summary

Modifier and Type	Method	Description
FedXRepositoryConnection	getConnection()	Opens a connection to this repository that can be used for querying and updating the contents of the repository.
FederationContext	getFederationContext()
String	getFederationSize()	return the number of triples in the federation as string.
QueryManager	getQueryManager()
protected void	initializeInternal()
void	setFederatedServiceResolver(FederatedServiceResolver resolver)	Sets the FederatedServiceResolver to use for this client.
protected void	shutDownInternal()

Methods inherited from class org.eclipse.rdf4j.repository.sail.SailRepository

getDataDir, getHttpClient, getHttpClientSessionManager, getSail, getValueFactory, isWritable, setDataDir, setHttpClient, setHttpClientSessionManager, setRepositoryResolver, toString

Methods inherited from class org.eclipse.rdf4j.repository.base.AbstractRepository

init, isInitialized, shutDown

Methods inherited from class java.lang.Object

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

Constructor Detail

FedXRepository

public FedXRepository(FedX federation,
                      FedXConfig config)

Method Detail

getConnection

public FedXRepositoryConnection getConnection()
                                       throws RepositoryException

Description copied from interface: Repository

Opens a connection to this repository that can be used for querying and updating the contents of the repository. Created connections need to be closed to make sure that any resources they keep hold of are released. The best way to do this is to use a try-with-resources block, as follows:

 try (RepositoryConnection conn = repository.getConnection()) {
        // perform operations on the connection
 }
 

Note that RepositoryConnection is not guaranteed to be thread-safe! The recommended pattern for repository access in a multi-threaded application is to share the Repository object between threads, but have each thread create and use its own RepositoryConnections.

Specified by:

getConnection in interface Repository

Overrides:

getConnection in class SailRepository

Returns:

A connection that allows operations on this repository.

Throws:

RepositoryException - If something went wrong during the creation of the Connection.

initializeInternal

protected void initializeInternal()
                           throws RepositoryException

Overrides:

initializeInternal in class SailRepository

Throws:

RepositoryException

shutDownInternal

protected void shutDownInternal()
                         throws RepositoryException

Overrides:

shutDownInternal in class SailRepository

Throws:

RepositoryException

setFederatedServiceResolver

public void setFederatedServiceResolver(FederatedServiceResolver resolver)

Description copied from interface: FederatedServiceResolverClient

Sets the FederatedServiceResolver to use for this client.

Specified by:

setFederatedServiceResolver in interface FederatedServiceResolverClient

Overrides:

setFederatedServiceResolver in class SailRepository

Parameters:

resolver - The resolver to use.

getFederationSize

public String getFederationSize()

return the number of triples in the federation as string. Retrieving the size is only supported EndpointType.NativeStore and EndpointType.RemoteRepository. If the federation contains other types of endpoints, the size is indicated as a lower bound, i.e. the string starts with a larger sign.

Returns:

the number of triples in the federation

getFederationContext

public FederationContext getFederationContext()

Returns:

the FederationContext

getQueryManager

public QueryManager getQueryManager()

Returns:

the QueryManager from the FederationContext