/// <summary>
/// Deletes an Object from the underlying Store using SPARQL Update
/// </summary>
/// <param name="oc">Object</param>
/// <param name="graphUri">URI of the Graph to delete from</param>
/// <param name="mode">Delete Mode</param>
public void DeleteObject(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
if (oc == null)
{
throw new ArgumentNullException("oc", "Cannot delete a Null Object");
}
SparqlUpdateCommandSet cmds = this._parser.ParseFromString(this.GetDeletionCommandText(oc, graphUri, mode));
this._underlyingProcessor.ProcessCommandSet(cmds);
}
public DeletionAction(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
this._oc = oc;
this._graphUri = graphUri;
this._mode = mode;
}
/// <summary>
/// Gets the Text of the SPARQL Update Command which will be used to Delete the Object from the underlying Store
/// </summary>
/// <param name="oc">Object</param>
/// <param name="graphUri">URI of the Graph to delete from</param>
/// <param name="mode">Delete Mode</param>
/// <returns></returns>
public String GetDeletionCommandText(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
if (oc == null)
{
throw new ArgumentNullException("oc", "Cannot delete a Null Object");
}
StringBuilder persistCommand = new StringBuilder();
switch (mode)
{
case LinqDeleteMode.DeleteAll:
//Delete all the Triples with this Object's Instance URI as the Subject/Object
//Start building a pair of DELETE WHERE commands
persistCommand.AppendLine("DELETE WHERE {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
persistCommand.Append(this.FormatAsUri(oc.InstanceUri));
persistCommand.AppendLine(" ?p ?o .");
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the first DELETE WHERE command
persistCommand.AppendLine("} ;");
//Create the second DELETE WHERE command
persistCommand.AppendLine("DELETE WHERE {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
persistCommand.Append("?s ?p ");
persistCommand.AppendLine(this.FormatAsUri(oc.InstanceUri) + " .");
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the second DELETE WHERE command
persistCommand.AppendLine("} ;");
return(persistCommand.ToString());
case LinqDeleteMode.DeleteValues:
//Delete the specific Values associated with this Object
Type t = oc.GetType();
PropertyInfo[] propInfo = t.GetProperties();
//Start building an DELETE DATA command
persistCommand.AppendLine("DELETE DATA {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
//Assert the Type Triple
persistCommand.Append(this.FormatAsUri(oc.InstanceUri));
persistCommand.Append(" a ");
persistCommand.Append(this.FormatAsUri(OwlClassSupertype.GetOwlClassUri(t)));
persistCommand.AppendLine(" .");
//Assert Triples for annotated properties
Graph g = new Graph();
foreach (PropertyInfo info in propInfo)
{
this.GetTripleText(oc, info, g, persistCommand);
}
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the DELETE DATA command
persistCommand.AppendLine("}");
return(persistCommand.ToString());
default:
throw new LinqToRdfException("Not a valid Linq Delete Mode");
}
}
public DeletionAction(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
this._oc = oc;
this._graphUri = graphUri;
this._mode = mode;
}
/// <summary>
/// Deletes an Object from the underlying Store using SPARQL Update
/// </summary>
/// <param name="oc">Object</param>
/// <param name="graphUri">URI of the Graph to delete from</param>
/// <param name="mode">Delete Mode</param>
public void DeleteObject(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
if (oc == null) throw new ArgumentNullException("oc", "Cannot delete a Null Object");
SparqlUpdateCommandSet cmds = this._parser.ParseFromString(this.GetDeletionCommandText(oc, graphUri, mode));
this._underlyingProcessor.ProcessCommandSet(cmds);
}
/// <summary>
/// Gets the Text of the SPARQL Update Command which will be used to Delete the Object from the underlying Store
/// </summary>
/// <param name="oc">Object</param>
/// <param name="graphUri">URI of the Graph to delete from</param>
/// <param name="mode">Delete Mode</param>
/// <returns></returns>
public String GetDeletionCommandText(OwlInstanceSupertype oc, String graphUri, LinqDeleteMode mode)
{
if (oc == null) throw new ArgumentNullException("oc", "Cannot delete a Null Object");
StringBuilder persistCommand = new StringBuilder();
switch (mode)
{
case LinqDeleteMode.DeleteAll:
//Delete all the Triples with this Object's Instance URI as the Subject/Object
//Start building a pair of DELETE WHERE commands
persistCommand.AppendLine("DELETE WHERE {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
persistCommand.Append(this.FormatAsUri(oc.InstanceUri));
persistCommand.AppendLine(" ?p ?o .");
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the first DELETE WHERE command
persistCommand.AppendLine("} ;");
//Create the second DELETE WHERE command
persistCommand.AppendLine("DELETE WHERE {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
persistCommand.Append("?s ?p ");
persistCommand.AppendLine(this.FormatAsUri(oc.InstanceUri) + " .");
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the second DELETE WHERE command
persistCommand.AppendLine("} ;");
return persistCommand.ToString();
case LinqDeleteMode.DeleteValues:
//Delete the specific Values associated with this Object
Type t = oc.GetType();
PropertyInfo[] propInfo = t.GetProperties();
//Start building an DELETE DATA command
persistCommand.AppendLine("DELETE DATA {");
//Need to add a GRAPH clause if a Graph URI has been provided
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.Append("GRAPH <");
persistCommand.Append(this._formatter.FormatUri(graphUri));
persistCommand.AppendLine("> {");
}
//Assert the Type Triple
persistCommand.Append(this.FormatAsUri(oc.InstanceUri));
persistCommand.Append(" a ");
persistCommand.Append(this.FormatAsUri(OwlClassSupertype.GetOwlClassUri(t)));
persistCommand.AppendLine(" .");
//Assert Triples for annotated properties
Graph g = new Graph();
foreach (PropertyInfo info in propInfo)
{
this.GetTripleText(oc, info, g, persistCommand);
}
//Need to append an extra } to close the GRAPH clause if using one
if (!String.IsNullOrEmpty(graphUri))
{
persistCommand.AppendLine("}");
}
//Close the DELETE DATA command
persistCommand.AppendLine("}");
return persistCommand.ToString();
default:
throw new LinqToRdfException("Not a valid Linq Delete Mode");
}
}
