/// <inheritdoc/>
protected override SqlProvider VisitSeek(SeekProvider provider)
{
var compiledSource = Compile(provider.Source);
SqlSelect source = compiledSource.Request.Statement;
var query = source.ShallowClone();
var parameterBindings = new List <QueryParameterBinding>();
var typeIdColumnName = Handlers.NameBuilder.TypeIdColumnName;
Func <KeyValuePair <int, Direction>, bool> filterNonTypeId =
pair => ((MappedColumn)provider.Header.Columns[pair.Key]).ColumnInfoRef.ColumnName != typeIdColumnName;
var keyColumns = provider.Header.Order
.Where(filterNonTypeId)
.ToList();
for (int i = 0; i < keyColumns.Count; i++)
{
int columnIndex = keyColumns[i].Key;
var sqlColumn = query.Columns[columnIndex];
var column = provider.Header.Columns[columnIndex];
TypeMapping typeMapping = Driver.GetTypeMapping(column.Type);
var binding = new QueryParameterBinding(typeMapping, GetSeekKeyElementAccessor(provider.Key, i));
parameterBindings.Add(binding);
query.Where &= sqlColumn == binding.ParameterReference;
}
return(CreateProvider(query, parameterBindings, provider, compiledSource));
}
protected override Provider VisitSeek(SeekProvider provider)
{
mappings[provider] = Enumerable.Range(0, provider.Header.Length).ToList();
return(provider);
}
/// <summary> /// Compiles <see cref="SeekProvider"/>. /// </summary> /// <param name="provider">Seek provider.</param> protected abstract TResult VisitSeek(SeekProvider provider);
protected override Provider VisitSeek(SeekProvider provider)
{
mappings[provider] = CollectionUtils.RangeToList(0, provider.Header.Length);
return(provider);
}
