VirtuosoManager Class

A Manager for accessing the Native Virtuoso Quad Store.

Inheritance Hierarchy

System.Object
VDS.RDF.Storage.BaseAsyncSafeConnector
VDS.RDF.Storage.VirtuosoManager

Namespace: VDS.RDF.Storage
Assembly: dotNetRDF.Data.Virtuoso (in dotNetRDF.Data.Virtuoso.dll) Version: 2.0.1+5.Branch.master.Sha.2b2692866fdc3f3bb5bc6f318ab2f93abcc1a689

Syntax

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public class VirtuosoManager : BaseAsyncSafeConnector, 
	IUpdateableStorage, IQueryableStorage, IStorageProvider, IStorageCapabilities, IDisposable, 
	IConfigurationSerializable

Public Class VirtuosoManager
	Inherits BaseAsyncSafeConnector
	Implements IUpdateableStorage, IQueryableStorage, IStorageProvider, IStorageCapabilities, 
	IDisposable, IConfigurationSerializable

The VirtuosoManager type exposes the following members.

Constructors

	Name	Description
	VirtuosoManager(String)	Creates a Manager for a Virtuoso Native Quad Store.
	VirtuosoManager(String, String, String)	Creates a Manager for a Virtuoso Native Quad Store.
	VirtuosoManager(String, String, String, Int32)	Creates a Manager for a Virtuoso Native Quad Store.
	VirtuosoManager(String, Int32, String, String, String)	Creates a Manager for a Virtuoso Native Quad Store.
	VirtuosoManager(String, Int32, String, String, String, Int32)	Creates a Manager for a Virtuoso Native Quad Store.

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Properties

	Name	Description
	AsyncParentServer	Gets the parent server (if any). (Inherited from BaseAsyncSafeConnector.)
	DeleteSupported	Returns that deleting Graphs is supported. (Overrides BaseAsyncSafeConnector.DeleteSupported.)
	HasActiveTransaction	Gets whether there is any active transaction on the Virtuoso database.
	HasOpenConnection	Gets whether there is an active connection to the Virtuoso database.
	IOBehaviour	Gets the IO Behaviour of the store. (Overrides BaseAsyncSafeConnector.IOBehaviour.)
	IsReadOnly	Returns that the Manager is not read-only. (Overrides BaseAsyncSafeConnector.IsReadOnly.)
	IsReady	Returns that the Manager is ready. (Overrides BaseAsyncSafeConnector.IsReady.)
	ListGraphsSupported	Returns that listing graphs is supported. (Overrides BaseAsyncSafeConnector.ListGraphsSupported.)
	ParentServer	Gets the parent server (if any). (Inherited from BaseAsyncSafeConnector.)
	UpdateSupported	Indicates that Updates are supported by the Virtuoso Native Quad Store. (Overrides BaseAsyncSafeConnector.UpdateSupported.)

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Methods

	Name	Description
	DeleteGraph(String)	Deletes a Graph from the store. (Overrides BaseAsyncSafeConnector.DeleteGraph(String).)
	DeleteGraph(Uri)	Deletes a Graph from the Virtuoso store. (Overrides BaseAsyncSafeConnector.DeleteGraph(Uri).)
	DeleteGraph(String, AsyncStorageCallback, Object)	Deletes a Graph from the Store. (Inherited from BaseAsyncSafeConnector.)
	DeleteGraph(Uri, AsyncStorageCallback, Object)	Deletes a Graph from the Store. (Inherited from BaseAsyncSafeConnector.)
	Dispose	Disposes of the Manager. (Overrides BaseAsyncSafeConnector.Dispose().)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	ListGraphs()	Lists the Graphs in the store. (Overrides BaseAsyncSafeConnector.ListGraphs().)
	ListGraphs(AsyncStorageCallback, Object)	Lists the Graphs in the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	LoadGraph(IGraph, String)	Loads a Graph from the Quad Store. (Overrides BaseAsyncSafeConnector.LoadGraph(IGraph, String).)
	LoadGraph(IGraph, Uri)	Loads a Graph from the Quad Store. (Overrides BaseAsyncSafeConnector.LoadGraph(IGraph, Uri).)
	LoadGraph(IRdfHandler, String)	Loads a Graph from the Quad Store. (Overrides BaseAsyncSafeConnector.LoadGraph(IRdfHandler, String).)
	LoadGraph(IRdfHandler, Uri)	Loads a Graph from the Quad Store. (Overrides BaseAsyncSafeConnector.LoadGraph(IRdfHandler, Uri).)
	LoadGraph(IGraph, String, AsyncStorageCallback, Object)	Loads a Graph from the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	LoadGraph(IGraph, Uri, AsyncStorageCallback, Object)	Loads a Graph from the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	LoadGraph(IRdfHandler, String, AsyncStorageCallback, Object)	Loads a Graph from the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	LoadGraph(IRdfHandler, Uri, AsyncStorageCallback, Object)	Loads a Graph from the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Query(String)	Executes a SPARQL Query on the native Quad Store.
	Query(IRdfHandler, ISparqlResultsHandler, String)	Executes a SPARQL Query on the native Quad Store processing the results with an appropriate handler from those provided.
	SaveGraph(IGraph)	Saves a Graph into the Quad Store (Warning: Completely replaces any existing Graph with the same URI). (Overrides BaseAsyncSafeConnector.SaveGraph(IGraph).)
	SaveGraph(IGraph, AsyncStorageCallback, Object)	Saves a Graph to the Store asynchronously. (Inherited from BaseAsyncSafeConnector.)
	SerializeConfiguration	Serializes the connection's configuration.
	ToString	Gets a String which gives details of the Connection. (Overrides Object.ToString().)
	Update	Executes a SPARQL Update on the native Quad Store.
	UpdateGraph(String, IEnumerable<Triple>, IEnumerable<Triple>)	Updates a Graph in the Quad Store. (Overrides BaseAsyncSafeConnector.UpdateGraph(String, IEnumerable<Triple>, IEnumerable<Triple>).)
	UpdateGraph(Uri, IEnumerable<Triple>, IEnumerable<Triple>)	Updates a Graph in the Quad Store. (Overrides BaseAsyncSafeConnector.UpdateGraph(Uri, IEnumerable<Triple>, IEnumerable<Triple>).)
	UpdateGraph(String, IEnumerable<Triple>, IEnumerable<Triple>, AsyncStorageCallback, Object)	Updates a Graph in the Store asychronously. (Inherited from BaseAsyncSafeConnector.)
	UpdateGraph(Uri, IEnumerable<Triple>, IEnumerable<Triple>, AsyncStorageCallback, Object)	Updates a Graph in the Store asychronously. (Inherited from BaseAsyncSafeConnector.)

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Fields

	Name	Description
	DefaultDB	Default Database for Virtuoso Server Quad Store.
	DefaultPort	Default Port for Virtuoso Servers.

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Remarks

This class implements IStorageProvider allowing it to be used with any of the general classes that support this interface as well as the Virtuoso specific classes.

Although this class takes a Database Name to ensure compatability with any Virtuoso installation (i.e. this allows for the Native Quad Store to be in a non-standard database) generally you should always specify DB as the Database Name parameter.

Virtuoso automatically assigns IDs to Blank Nodes input into it, these IDs are not based on the actual Blank Node ID so inputting a Blank Node with the same ID multiple times will result in multiple Nodes being created in Virtuoso. This means that data containing Blank Nodes which is stored to Virtuoso and then retrieved will have different Blank Node IDs to those input. In addition there is no guarentee that when you save a Graph containing Blank Nodes into Virtuoso that retrieving it will give the same Blank Node IDs even if the Graph being saved was originally retrieved from Virtuoso. Finally please see the remarks on the UpdateGraph() method which deal with how insertion and deletion of triples containing blank nodes into existing graphs operates.

You can use a null Uri or an empty String as a Uri to indicate that operations should affect the Default Graph. Where the argument is only a Graph a null BaseUri property indicates that the Graph affects the Default Graph.

Reference

VDS.RDF.Storage Namespace