protected SDatabase _Add(SDbObject s, string nm, long p)
{
switch (s.type)
{
case Types.STable: return(Install((STable)s, nm, p));
case Types.SColumn: return(Install((SColumn)s, nm, p));
// case Types.SAlter: return Install((SAlter)s, nm, p);
}
return(this);
}
public SRecord Get(long pos)
{
var rc = _Get(pos) as SRecord ??
throw new Exception("Record " + SDbObject._Uid(pos) + " never defined");
var tb = objects[rc.table] as STable ??
throw new Exception("Table " + rc.table + " has been dropped");
if (!tb.rows.Contains(rc.Defpos))
{
throw new Exception("Record " + SDbObject._Uid(pos) + " has been dropped");
}
var dp = tb.rows[rc.Defpos];
if (dp == pos)
{
return(rc);
}
return((SRecord)_Get(dp));
}
protected SDatabase _Add(SDbObject s, long p)
{
switch (s.type)
{
case Types.SRecord: return(Install((SRecord)s, p));
case Types.SAlter: return(Install((SAlter)s, p));
case Types.SDrop: return(Install((SDrop)s, p));
case Types.SIndex: return(Install((SIndex)s, p));
case Types.SDropIndex: return(Install((SDropIndex)s, p));
case Types.SUpdate: return(Install((SUpdate)s, p));
case Types.SDelete: return(Install((SDelete)s, p));
}
return(this);
}
internal static string Uid(long uid)
{
return(SDbObject._Uid(uid));
}
