public IEnumerable <TripleOVStruct> GetTriplesWithSubject(ObjectVariants subj)
{
return(ps_index.GetRecordsWithKey2(((OV_iriint)subj).code)
.Cast <object[]>()
.Select(rec => new TripleOVStruct(null, NodeGenerator.GetUri(rec[1]), rec[2].ToOVariant(NodeGenerator))));
}
public IEnumerable <TripleOVStruct> GetTriplesWithPredicate(ObjectVariants pred)
{
return(ps_index.GetRecordsWithKey1(((OV_iriint)pred).code)
.Cast <object[]>()
.Select(rec =>
new TripleOVStruct(NodeGenerator.GetUri(rec[0]), null, rec[2].ToOVariant(NodeGenerator))));
}
public IEnumerable <ObjectVariants> GetSubjects(ObjectVariants pred, ObjectVariants obj)
{
return(po_index.GetRecordsWithKeys(((OV_iriint)pred).code, obj)
.Cast <object[]>()
.Select(rec => NodeGenerator.GetUri(rec[0])));
}
public IEnumerable <ObjectVariants> GetAllSubjects()
{
return
(ps_index.GetRecordsAll()
.Cast <object[]>()
.Select(row => (int)row[0])
.Distinct()
.Select(uri => NodeGenerator.GetUri(uri)));
}
public IEnumerable <TripleOVStruct> GetTriplesWithTextObject(ObjectVariants obj)
{
var tableRow = Table.Element(0);
return(textObjectIndex.FindText(obj.ToString())
.Select(offset =>
{
tableRow.offset = offset;
return tableRow.Get();
})
.Cast <object[]>()
.Select(rec => new TripleOVStruct(NodeGenerator.GetUri(rec[0]), NodeGenerator.GetUri(rec[1]), null)));
}
public IEnumerable <T> GetTriples <T>(Func <ObjectVariants, ObjectVariants, ObjectVariants, T> returns)
{
if (Table.TableCell.Root.Count() == 0)
{
return(Enumerable.Empty <T>());
}
return(ps_index.GetRecordsAll()
.Cast <object[]>()
.Select(
rec =>
returns(NodeGenerator.GetUri(rec[0]), NodeGenerator.GetUri(rec[1]),
rec[2].ToOVariant(NodeGenerator))));
}
public SparqlEqualsExpression(SparqlExpression l, SparqlExpression r, NodeGenerator ng)
{
var lc = l.Const;
var rc = r.Const;
switch (NullablePairExt.Get(lc, rc))
{
case NP.bothNull:
Operator = result => l.TypedOperator(result).Equals(r.TypedOperator(result));
AggregateLevel = SetAggregateLevel(l.AggregateLevel, r.AggregateLevel);
break;
case NP.leftNull:
if (rc.Variant == ObjectVariantEnum.Iri)
{
OV_iriint rcCoded = null;
Operator = result =>
{
var lVal = l.TypedOperator(result);
if (lVal.Variant == ObjectVariantEnum.Iri)
{
return(lVal.Equals(rc));
}
if (lVal.Variant == ObjectVariantEnum.IriInt)
{
if (rcCoded == null)
{
rcCoded = (OV_iriint)ng.GetUri((string)rc.Content);
}
return(((OV_iriint)lVal).code == rcCoded.code);
}
else
{
throw new AggregateException();
}
};
}
else
{
Operator = result => l.TypedOperator(result).Equals(rc);
}
AggregateLevel = l.AggregateLevel;
break;
case NP.rigthNull:
if (lc.Variant == ObjectVariantEnum.Iri)
{
OV_iriint lcCoded = null;
Operator = result =>
{
var rVal = r.TypedOperator(result);
if (rVal.Variant == ObjectVariantEnum.Iri)
{
return(rVal.Equals(lc));
}
if (rVal.Variant == ObjectVariantEnum.IriInt)
{
if (lcCoded == null)
{
lcCoded = (OV_iriint)ng.GetUri((string)lc.Content);
}
return(((OV_iriint)rVal).code == lcCoded.code);
}
else
{
throw new AggregateException();
}
};
}
else
{
Operator = result => lc.Equals(r.TypedOperator(result));
}
AggregateLevel = r.AggregateLevel;
break;
case NP.bothNotNull:
Const = new OV_bool(lc.Equals(rc));
break;
}
TypedOperator = result => new OV_bool(Operator(result));
}
public IEnumerable <TripleOVStruct> GetTriplesWithObject(ObjectVariants obj)
{
return(po_index.GetRecordsWithKey2(obj)
.Cast <object[]>()
.Select(rec => new TripleOVStruct(NodeGenerator.GetUri(rec[0]), NodeGenerator.GetUri(rec[1]), obj)));
}
public SparqlIriExpression(string sparqlUriNode, NodeGenerator q)
{
// TypedOperator = result => uri;
this.Const = q.GetUri(sparqlUriNode);
}
public SparqlIriExpression(string sparqlUriNode, NodeGenerator q)
{
var uri = q.GetUri(sparqlUriNode);
Func = result => uri;
}
