Package org.eclipse.rdf4j.repository.event.base

Class NotifyingRepositoryWrapper

java.lang.Object

org.eclipse.rdf4j.repository.base.RepositoryWrapper

org.eclipse.rdf4j.repository.event.base.NotifyingRepositoryWrapper

All Implemented Interfaces:

DelegatingRepository, NotifyingRepository, Repository

public class NotifyingRepositoryWrapper
extends RepositoryWrapper
implements NotifyingRepository

This notifying decorator allows listeners to register with the repository or connection and be notified when events occur.

Author:

James Leigh, Herko ter Horst, Arjohn Kampman

See Also:

• NotifyingRepositoryConnectionWrapper

Constructor Summary

Constructors

Constructor	Description
NotifyingRepositoryWrapper()
NotifyingRepositoryWrapper(Repository delegate)
NotifyingRepositoryWrapper(Repository delegate, boolean defaultReportDeltas)

Method Summary

Modifier and Type	Method	Description
void	addRepositoryConnectionListener(RepositoryConnectionListener listener)	Registers a RepositoryConnectionListener that will receive notifications of operations that are performed on anyinvalid input: '<' connections that are created by this repository.
void	addRepositoryListener(RepositoryListener listener)	Registers a RepositoryListener that will receive notifications of operations that are performed on this repository.
NotifyingRepositoryConnection	getConnection()	Opens a connection to this repository that can be used for querying and updating the contents of the repository.
boolean	getDefaultReportDeltas()
void	init()	Initializes this repository.
void	removeRepositoryConnectionListener(RepositoryConnectionListener listener)	Removes a registered RepositoryConnectionListener from this repository.
void	removeRepositoryListener(RepositoryListener listener)	Removes a registered RepositoryListener from this repository.
void	setDataDir(File dataDir)	Set the directory where data and logging for this repository is stored.
void	setDefaultReportDeltas(boolean defaultReportDeltas)
void	shutDown()	Shuts the repository down, releasing any resources that it keeps hold of.

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

getDataDir, getDelegate, getValueFactory, isInitialized, isWritable, setDelegate, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.repository.Repository

getDataDir, getValueFactory, isInitialized, isWritable

Constructor Details

NotifyingRepositoryWrapper

public NotifyingRepositoryWrapper()

NotifyingRepositoryWrapper

public NotifyingRepositoryWrapper(Repository delegate)

NotifyingRepositoryWrapper

public NotifyingRepositoryWrapper(Repository delegate,
 boolean defaultReportDeltas)

Method Details

getDefaultReportDeltas

public boolean getDefaultReportDeltas()

setDefaultReportDeltas

public void setDefaultReportDeltas(boolean defaultReportDeltas)

addRepositoryListener

public void addRepositoryListener(RepositoryListener listener)

Registers a RepositoryListener that will receive notifications of operations that are performed on this repository.

Specified by:

addRepositoryListener in interface NotifyingRepository

removeRepositoryListener

public void removeRepositoryListener(RepositoryListener listener)

Removes a registered RepositoryListener from this repository.

Specified by:

removeRepositoryListener in interface NotifyingRepository

addRepositoryConnectionListener

public void addRepositoryConnectionListener(RepositoryConnectionListener listener)

Registers a RepositoryConnectionListener that will receive notifications of operations that are performed on anyinvalid input: '<' connections that are created by this repository.

Specified by:

addRepositoryConnectionListener in interface NotifyingRepository

removeRepositoryConnectionListener

public void removeRepositoryConnectionListener(RepositoryConnectionListener listener)

Removes a registered RepositoryConnectionListener from this repository.

Specified by:

removeRepositoryConnectionListener in interface NotifyingRepository

getConnection

public NotifyingRepositoryConnection 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 NotifyingRepository

Specified by:

getConnection in interface Repository

Overrides:

getConnection in class RepositoryWrapper

Returns:

A connection that allows operations on this repository.

Throws:

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

init

public void init()
          throws RepositoryException

Description copied from interface: Repository

Initializes this repository. A repository needs to be initialized before it can be used, however explicitly calling this method is not necessary: the repository will automatically initialize itself if an operation is executed on it that requires it to be initialized.

Specified by:

init in interface Repository

Overrides:

init in class RepositoryWrapper

Throws:

RepositoryException - If the initialization failed.

setDataDir

public void setDataDir(File dataDir)

Description copied from interface: Repository

Set the directory where data and logging for this repository is stored.

Specified by:

setDataDir in interface Repository

Overrides:

setDataDir in class RepositoryWrapper

Parameters:

dataDir - the directory where data for this repository is stored

shutDown

public void shutDown()
              throws RepositoryException

Description copied from interface: Repository

Shuts the repository down, releasing any resources that it keeps hold of. Once shut down, the repository can no longer be used until it is re-initialized.

Specified by:

shutDown in interface Repository

Overrides:

shutDown in class RepositoryWrapper

Throws:

RepositoryException