public bool Add(HashSig hashSig, int id)
{
if (!HashToID.ContainsKey(hashSig))
{
IdToHash.Add(id, hashSig);
HashToID.Add(hashSig, id);
var foo = IdToHash.Keys;
return(true);
}
return(false);
}
public bool TryGetHash(int id, out HashSig sig)
{
bool found;
if (IdExists(id))
{
sig = HashValue(id);
found = true;
}
else
{
sig = null; // or new HashSig() ?
found = false;
}
return(found);
}
public bool TryGetID(HashSig sig, out int id)
{
bool found;
if (SigExists(sig))
{
id = RecordID(sig);
found = true;
}
else
{
id = 0;
found = false;
}
return(found);
}
public bool AddRow(DataRow row, int rownumber)
{
var sig = new HashSig(row);
int id;
if (row["id"] == System.DBNull.Value)
{
//id = rownumber;
throw new Exception("oops id is null in HashTable.add");
}
else
{
id = row.Field <int>("id");
}
return(Add(sig, id));
}
public int RecordID(HashSig Sig) => HashToID[Sig];
public bool SigExists(HashSig Sig) => HashToID.ContainsKey(Sig);