1 files changed, 73 insertions, 0 deletions
diff --git a/src/libixion/column_store_type.hpp b/src/libixion/column_store_type.hpp
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+++ b/src/libixion/column_store_type.hpp
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef IXION_COLUMN_STORE_TYPE_HPP
+#define IXION_COLUMN_STORE_TYPE_HPP
+
+#include "ixion/types.hpp"
+#include "ixion/cell.hpp"
+
+#include <mdds/multi_type_vector/types.hpp>
+#include <mdds/multi_type_vector/macro.hpp>
+#include <mdds/multi_type_vector/block_funcs.hpp>
+#include <mdds/multi_type_vector.hpp>
+#include <mdds/multi_type_matrix.hpp>
+
+#include <deque>
+
+namespace ixion {
+
+// Element types
+
+constexpr mdds::mtv::element_t element_type_empty   = mdds::mtv::element_type_empty;
+constexpr mdds::mtv::element_t element_type_boolean = mdds::mtv::element_type_boolean;
+constexpr mdds::mtv::element_t element_type_numeric = mdds::mtv::element_type_double;
+constexpr mdds::mtv::element_t element_type_string  = mdds::mtv::element_type_uint32;
+constexpr mdds::mtv::element_t element_type_formula = mdds::mtv::element_type_user_start;
+
+// Element block types
+
+using boolean_element_block = mdds::mtv::boolean_element_block;
+using numeric_element_block = mdds::mtv::double_element_block;
+using string_element_block  = mdds::mtv::uint32_element_block;
+
+using formula_element_block =
+    mdds::mtv::noncopyable_managed_element_block<element_type_formula, ixion::formula_cell>;
+
+MDDS_MTV_DEFINE_ELEMENT_CALLBACKS_PTR(formula_cell, element_type_formula, nullptr, formula_element_block)
+
+struct column_store_traits : mdds::mtv::default_traits
+{
+    using block_funcs = mdds::mtv::element_block_funcs<
+        boolean_element_block,
+        numeric_element_block,
+        string_element_block,
+        formula_element_block>;
+};
+
+/** Type that represents a whole column. */
+using column_store_t = mdds::multi_type_vector<column_store_traits>;
+
+/** Type that represents a collection of columns. */
+using column_stores_t = std::deque<column_store_t>;
+
+/**
+ * The integer element blocks are used to store string ID's.  The actual
+ * string element blocks are not used in the matrix store in ixion.
+ */
+struct matrix_store_traits
+{
+    typedef mdds::mtv::int64_element_block integer_element_block;
+    typedef mdds::mtv::string_element_block string_element_block;
+};
+
+using matrix_store_t = mdds::multi_type_matrix<matrix_store_traits>;
+
+}
+
+#endif
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */