public override IEnumerable <Literal> GetDataBySubjPred(int subj, int pred)
{
if (subj == Int32.MinValue || pred == Int32.MinValue)
{
return(Enumerable.Empty <Literal>());
}
var offsets = TakeValuesByPrevaricate <long>(subj, pred, 2, dataPredicates, data);
return(offsets
.Select(offset => LiteralStore.Read(offset, PredicatesCoding.LiteralVid[pred]))
.ToArray());
}
public IEnumerable <Literal> GetDatInDiapason(Diapason di, int pred)
{
Diapason internal_diap = dtriples_sp.Root.BinarySearchDiapason(di.start, di.numb, ent =>
{
return(((int)ent.Field(1).Get()).CompareTo(pred));
});
return(dtriples_sp.Root.ElementValues(internal_diap.start, internal_diap.numb)
.Cast <object[]>()
.Select(en => (long)en[1])
.Select(offset => LiteralStore.Read(offset, PredicatesCoding.LiteralVid[pred])));
}
public override IEnumerable <KeyValuePair <Literal, int> > GetDataBySubj(int subj)
{
if (subj == Int32.MinValue)
{
return(Enumerable.Empty <KeyValuePair <Literal, int> >());
}
object[] diapason = GetDiapasonFromHash(subj, 2);
return(diapason == null
? new KeyValuePair <Literal, int> [0]
: dtriples_sp.Root.ElementValues((long)diapason[0], (long)diapason[1])
.Cast <object[]>()
.Select(row => new KeyValuePair <Literal, int>(LiteralStore.Read((long)row[1], PredicatesCoding.LiteralVid[(int)row[0]]), (int)row[0])).ToArray());
}
public override IEnumerable <KeyValuePair <Literal, int> > GetDataBySubj(int subj)
{
if (subj == Int32.MinValue)
{
return(Enumerable.Empty <KeyValuePair <Literal, int> >());
}
object[] diapason = GetDiapasonFromHash(subj, 2);
var values = data.Root.ElementValues((long)diapason[0], (long)diapason[1])
.Cast <long>()
.ToArray();
return(dataPredicates.Root.ElementValues((long)diapason[0], (long)diapason[1])
.Cast <int>()
.Select((pred, i) => new KeyValuePair <long, int>(values[i], pred))
.ToArray()
.Select(pair => new KeyValuePair <Literal, int>(LiteralStore.Read(pair.Key, PredicatesCoding.LiteralVid[pair.Value]), pair.Value)));
}
public override IEnumerable <Literal> GetDataBySubjPred(int subj, int pred)
{
if (subj == Int32.MinValue || pred == Int32.MinValue)
{
return(Enumerable.Empty <Literal>());
}
object[] diapason = GetDiapasonFromHash(subj, 2);
return(diapason == null
? new Literal[0]
: dtriples_sp.Root.ElementValues((long)diapason[0], (long)diapason[1])
.Cast <object[]>()
.SkipWhile(entry => pred != (int)entry[0])
.TakeWhile(entry => pred == (int)entry[0])
.Select(en => (long)en[1])
.Select(offset => LiteralStore.Read(offset, PredicatesCoding.LiteralVid[pred]))
.ToArray());
}
public override IEnumerable <Literal> GetDataBySubjPred(int subj, int pred)
{
if (subj == Int32.MinValue || pred == Int32.MinValue)
{
return(new Literal[0]);
}
var rec_ent = this.entitiesTree.Root.Element(subj);
; //.BinarySearchFirst(ent => ((int) ent.Field(0).Get()).CompareTo(subj));
if (rec_ent.IsEmpty)
{
return(new Literal[0]);
}
var pairs = (object[])rec_ent.Field(1).Get();
var literalVidEnumeration = PredicatesCoding.LiteralVid[pred];
return(pairs.Cast <object[]>()
.Where(pair => (int)pair[0] == pred)
.Select(pair => (long)pair[1])
.Select(l => LiteralStore.Read(l, literalVidEnumeration))
.ToArray());
}
public override IEnumerable <KeyValuePair <Literal, int> > GetDataBySubj(int subj)
{
if (subj == Int32.MinValue)
{
return(new KeyValuePair <Literal, int> [0]);
}
var rec_ent = this.entitiesTree.Root.Element(subj);
//BinarySearchFirst(ent => ((int) ent.Field(0).Get()).CompareTo(subj));
//if (rec_ent.IsEmpty) pd = new KeyValuePair<Literal, int>[0];else
object[] pairs = (object[])rec_ent.Field(1).Get();
// PaEntry dtriple_entry = dtriples.Root.Element(0);
return(pairs.Cast <object[]>()
.Select(pair =>
{
var offset1 = (long)pair[1];
var literalObj = LiteralStore.Read(offset1, PredicatesCoding.LiteralVid[(int)pair[0]]);
return new KeyValuePair <Literal, int>(literalObj, (int)pair[0]);
})
.ToArray());
}