int IComparable.CompareTo(object other)
{
// We'll make an ordering over resources.
// First named entities, then bnodes, then literals.
// Named entities are sorted by URI.
// Bnodes by hashcode.
// Literals by their value, language, datatype.
Resource r = (Resource)other;
if (Uri != null && r.Uri == null)
{
return(-1);
}
if (Uri == null && r.Uri != null)
{
return(1);
}
if (this is BNode && r is Literal)
{
return(-1);
}
if (this is Literal && r is BNode)
{
return(1);
}
if (Uri != null)
{
return(String.Compare(Uri, r.Uri, false, System.Globalization.CultureInfo.InvariantCulture));
}
if (this is BNode)
{
return(GetHashCode().CompareTo(r.GetHashCode()));
}
if (this is Literal)
{
int x = String.Compare(((Literal)this).Value, ((Literal)r).Value, false, System.Globalization.CultureInfo.InvariantCulture);
if (x != 0)
{
return(x);
}
x = String.Compare(((Literal)this).Language, ((Literal)r).Language, false, System.Globalization.CultureInfo.InvariantCulture);
if (x != 0)
{
return(x);
}
x = String.Compare(((Literal)this).DataType, ((Literal)r).DataType, false, System.Globalization.CultureInfo.InvariantCulture);
return(x);
}
return(0); // unreachable
}
public override int GetHashCode()
{
int ret = 0;
if (Subject != null)
{
ret = unchecked (ret + Subject.GetHashCode());
}
if (Predicate != null)
{
ret = unchecked (ret + Predicate.GetHashCode());
}
if (Object != null)
{
ret = unchecked (ret + Object.GetHashCode());
}
if (Meta != null)
{
ret = unchecked (ret + Meta.GetHashCode());
}
return(ret);
}
