org.apache.marmotta.kiwi.versioning.repository

Class SnapshotRepository

java.lang.Object

org.openrdf.repository.base.RepositoryBase

org.openrdf.repository.sail.SailRepository

org.apache.marmotta.kiwi.versioning.repository.SnapshotRepository

All Implemented Interfaces:

org.openrdf.repository.Repository

public class SnapshotRepository
extends org.openrdf.repository.sail.SailRepository

A wrapper around a KiWiVersioningSail that allows accessing snapshots using the Repository API instead of the SAIL API.

Author: Sebastian Schaffert

Constructor Summary

Constructors

Constructor and Description
SnapshotRepository(KiWiVersioningSail sail)

Method Summary

Methods

Modifier and Type	Method and Description
org.openrdf.repository.sail.SailRepositoryConnection	getSnapshot(Date snapshotDate) Get a read-only snapshot of the repository at the given date.
org.openrdf.repository.RepositoryResult<Version>	listVersions() List all versions of this repository.
org.openrdf.repository.RepositoryResult<Version>	listVersions(Date from, Date to) List all versions of this repository between a start and end date.

Methods inherited from class org.openrdf.repository.sail.SailRepository

getConnection, getDataDir, getSail, getValueFactory, initializeInternal, isWritable, setDataDir, shutDownInternal, toString

Methods inherited from class org.openrdf.repository.base.RepositoryBase

initialize, isInitialized, shutDown

Methods inherited from class java.lang.Object

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

Constructor Detail

SnapshotRepository

public SnapshotRepository(KiWiVersioningSail sail)

Method Detail

getSnapshot

public org.openrdf.repository.sail.SailRepositoryConnection getSnapshot(Date snapshotDate)
                                                                 throws org.openrdf.repository.RepositoryException

Get a read-only snapshot of the repository at the given date. Returns a repository connection that can be used to access the triple data. Any attempts to modify the underlying data will throw a SailReadOnlyException.

Parameters:

snapshotDate - the date of which to take the snapshot; the snapshot will consist of all triples that have been created before or at the date and deleted after that date (or not deleted at all).

Returns:

a read-only sail connection to access the data of the triple store at the given date

Throws:

org.openrdf.repository.RepositoryException

listVersions

public org.openrdf.repository.RepositoryResult<Version> listVersions()
                                                              throws org.openrdf.sail.SailException

List all versions of this repository.

Returns:

Throws:

org.openrdf.sail.SailException

listVersions

public org.openrdf.repository.RepositoryResult<Version> listVersions(Date from,
                                                            Date to)
                                                              throws org.openrdf.sail.SailException

List all versions of this repository between a start and end date.

Returns:

Throws:

org.openrdf.sail.SailException