/// <summary>
/// Clears the triples and metadata of the graph
/// </summary>
public void ClearTriples()
{
//Clear triples
this.Triples.Clear();
//Clear index
this.GraphIndex.ClearIndex();
//Raise event
RDFModelEvents.RaiseOnGraphCleared(String.Format("Graph '{0}' has been cleared.", this));
}
/// <summary>
/// Removes the given triple from the graph
/// </summary>
public RDFGraph RemoveTriple(RDFTriple triple)
{
if (this.ContainsTriple(triple))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
return(this);
}
/// <summary>
/// Removes the triples with the given literal as object
/// </summary>
public RDFGraph RemoveTriplesByLiteral(RDFLiteral objectLiteral)
{
if (objectLiteral != null)
{
foreach (var triple in this.SelectTriplesByLiteral(objectLiteral))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
}
return(this);
}
/// <summary>
/// Removes the triples with the given (non-blank) predicate
/// </summary>
public RDFGraph RemoveTriplesByPredicate(RDFResource predicateResource)
{
if (predicateResource != null && !predicateResource.IsBlank)
{
foreach (var triple in this.SelectTriplesByPredicate(predicateResource))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
}
return(this);
}
/// <summary>
/// Adds the given triple to the graph, avoiding duplicate insertions
/// </summary>
public RDFGraph AddTriple(RDFTriple triple)
{
if (triple != null)
{
if (!this.Triples.ContainsKey(triple.TripleID))
{
//Add triple
this.Triples.Add(triple.TripleID, triple);
//Add index
this.GraphIndex.AddIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleAdded(String.Format("Triple '{0}' has been added to the Graph '{1}'.", triple, this));
}
}
return(this);
}
/// <summary>
/// Removes the triples with the given subject
/// </summary>
public RDFGraph RemoveTriplesBySubject(RDFResource subjectResource)
{
if (subjectResource != null)
{
foreach (RDFTriple triple in this.SelectTriplesBySubject(subjectResource))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
}
return(this);
}
