Add object/view/container statements, statements cache

1 files changed, 256 insertions, 0 deletions

diff --git a/odb/mssql/container-statements.hxx b/odb/mssql/container-statements.hxx
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+++ b/odb/mssql/container-statements.hxx
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+// file      : odb/mssql/container-statements.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license   : ODB NCUEL; see accompanying LICENSE file
+
+#ifndef ODB_MSSQL_CONTAINER_STATEMENTS_HXX
+#define ODB_MSSQL_CONTAINER_STATEMENTS_HXX
+
+#include <odb/pre.hxx>
+
+#include <cstddef> // std::size_t
+
+#include <odb/forward.hxx>
+#include <odb/traits.hxx>
+
+#include <odb/mssql/version.hxx>
+#include <odb/mssql/mssql-types.hxx>
+#include <odb/mssql/statement.hxx>
+
+#include <odb/mssql/details/export.hxx>
+
+namespace odb
+{
+  namespace mssql
+  {
+    class connection;
+
+    // Template argument is the generated abstract container traits type.
+    // That is, it doesn't need to provide column counts and statements.
+    //
+    template <typename T>
+    class container_statements
+    {
+    public:
+      typedef T traits;
+
+      typedef typename traits::data_image_type data_image_type;
+      typedef typename traits::cond_image_type cond_image_type;
+
+      typedef typename traits::functions_type functions_type;
+
+      typedef mssql::insert_statement insert_statement_type;
+      typedef mssql::select_statement select_statement_type;
+      typedef mssql::delete_statement delete_statement_type;
+
+      typedef mssql::connection connection_type;
+
+      container_statements (connection_type&);
+
+      connection_type&
+      connection ()
+      {
+        return conn_;
+      }
+
+      // Functions.
+      //
+      functions_type&
+      functions ()
+      {
+        return functions_;
+      }
+
+      // Id image binding (external).
+      //
+      const binding&
+      id_binding ()
+      {
+        return *id_binding_;
+      }
+
+      void
+      id_binding (const binding& b)
+      {
+        id_binding_ = &b;
+      }
+
+      // Condition image.
+      //
+      cond_image_type&
+      cond_image ()
+      {
+        return cond_image_;
+      }
+
+      std::size_t
+      cond_image_version () const
+      {
+        return cond_image_version_;
+      }
+
+      void
+      cond_image_version (std::size_t v)
+      {
+        cond_image_version_ = v;
+      }
+
+      std::size_t
+      cond_id_binding_version () const
+      {
+        return cond_id_binding_version_;
+      }
+
+      void
+      cond_id_binding_version (std::size_t v)
+      {
+        cond_id_binding_version_ = v;
+      }
+
+      binding&
+      cond_image_binding ()
+      {
+        return cond_image_binding_;
+      }
+
+      // Data image.
+      //
+      data_image_type&
+      data_image ()
+      {
+        return data_image_;
+      }
+
+      std::size_t
+      data_image_version () const
+      {
+        return data_image_version_;
+      }
+
+      void
+      data_image_version (std::size_t v)
+      {
+        data_image_version_ = v;
+      }
+
+      std::size_t
+      data_id_binding_version () const
+      {
+        return data_id_binding_version_;
+      }
+
+      void
+      data_id_binding_version (std::size_t v)
+      {
+        data_id_binding_version_ = v;
+      }
+
+      binding&
+      data_image_binding ()
+      {
+        return data_image_binding_;
+      }
+
+      //
+      // Statements.
+      //
+
+      insert_statement_type&
+      insert_one_statement ()
+      {
+        // Containers never use auto ids so hardcode the insert_statement
+        // constructors returning argument as false.
+        //
+        if (insert_one_ == 0)
+          insert_one_.reset (
+            new (details::shared) insert_statement_type (
+              conn_, insert_one_text_, data_image_binding_, false));
+
+        return *insert_one_;
+      }
+
+      select_statement_type&
+      select_all_statement ()
+      {
+        if (select_all_ == 0)
+          select_all_.reset (
+            new (details::shared) select_statement_type (
+              conn_,
+              select_all_text_,
+              cond_image_binding_,
+              data_image_binding_,
+              4096));  // Hardcode a 4kB LOB prefetch size.
+
+        return *select_all_;
+      }
+
+      delete_statement_type&
+      delete_all_statement ()
+      {
+        if (delete_all_ == 0)
+          delete_all_.reset (
+            new (details::shared) delete_statement_type (
+              conn_, delete_all_text_, cond_image_binding_));
+
+        return *delete_all_;
+      }
+
+    private:
+      container_statements (const container_statements&);
+      container_statements& operator= (const container_statements&);
+
+    protected:
+      connection_type& conn_;
+      functions_type functions_;
+
+      const binding* id_binding_;
+
+      cond_image_type cond_image_;
+      std::size_t cond_image_version_;
+      std::size_t cond_id_binding_version_;
+      binding cond_image_binding_;
+      bind* cond_image_bind_;
+
+      data_image_type data_image_;
+      std::size_t data_image_version_;
+      std::size_t data_id_binding_version_;
+      binding data_image_binding_;
+      bind* data_image_bind_;
+
+      const char* insert_one_text_;
+      const char* select_all_text_;
+      const char* delete_all_text_;
+
+      details::shared_ptr<insert_statement_type> insert_one_;
+      details::shared_ptr<select_statement_type> select_all_;
+      details::shared_ptr<delete_statement_type> delete_all_;
+    };
+
+    // Template argument is the generated concrete container traits type.
+    //
+    template <typename T>
+    class container_statements_impl: public T::statements_type
+    {
+    public:
+      typedef T traits;
+      typedef typename T::statements_type base;
+      typedef mssql::connection connection_type;
+
+      container_statements_impl (connection_type&);
+
+    private:
+      container_statements_impl (const container_statements_impl&);
+      container_statements_impl& operator= (const container_statements_impl&);
+
+    private:
+      bind cond_image_bind_array_[traits::cond_column_count];
+      bind data_image_bind_array_[traits::data_column_count];
+    };
+  }
+}
+
+#include <odb/mssql/container-statements.txx>
+
+#include <odb/post.hxx>
+
+#endif // ODB_MSSQL_CONTAINER_STATEMENTS_HXX