private View GetViewAt(int offset)
{
var table = Transaction.GetTable(SystemSchema.ViewTableName);
if (table == null)
throw new DatabaseSystemException(String.Format("System table '{0}' was not defined.", SystemSchema.ViewTableName));
var e = table.GetEnumerator();
int i = 0;
while (e.MoveNext()) {
var row = e.Current.RowId.RowNumber;
if (i == offset) {
ViewInfo viewInfo;
if (!viewCache.TryGetValue(row, out viewInfo)) {
var binary = (ISqlBinary)table.GetValue(row, 3).Value;
using (var context = new SystemQueryContext(Transaction, SystemSchema.Name)) {
viewInfo = ViewInfo.Deserialize(binary.GetInput(), context.TypeResolver());
}
viewCache[row] = viewInfo;
}
return new View(viewInfo);
}
++i;
}
throw new ArgumentOutOfRangeException("offset");
}
public View GetView(ObjectName viewName)
{
var viewTable = Transaction.GetTable(SystemSchema.ViewTableName);
var e = viewTable.GetEnumerator();
while (e.MoveNext()) {
int row = e.Current.RowId.RowNumber;
var cSchema = viewTable.GetValue(row, 0).Value.ToString();
var cName = viewTable.GetValue(row, 1).Value.ToString();
if (viewName.ParentName.Equals(cSchema) &&
viewName.Name.Equals(cName)) {
ViewInfo viewInfo;
if (!viewCache.TryGetValue(row, out viewInfo)) {
var blob = (SqlBinary)viewTable.GetValue(row, 3).Value;
using (var context = new SystemQueryContext(Transaction, SystemSchema.Name)) {
viewInfo = ViewInfo.Deserialize(blob.GetInput(), context.TypeResolver());
}
viewCache[row] = viewInfo;
}
return new View(viewInfo);
}
}
return null;
}
