From 8d4d2568f356cb9beb1553bf58ad69c1c800b996 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 14 Aug 2014 09:37:06 +0200
Subject: Implement bulk database operation support for Oracle and SQL Server

---
 odb/database.ixx | 118 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)

(limited to 'odb/database.ixx')

diff --git a/odb/database.ixx b/odb/database.ixx
index 739db03..43dae6a 100644
--- a/odb/database.ixx
+++ b/odb/database.ixx
@@ -3,11 +3,74 @@
 // license   : GNU GPL v2; see accompanying LICENSE file
 
 #include <cstring> // std::strlen()
+#include <utility> // std::move
+#include <iterator>
 
 #include <odb/transaction.hxx>
+#include <odb/pointer-traits.hxx>
 
 namespace odb
 {
+  template <typename T>
+  struct object_pointer_traits
+  {
+    typedef details::meta::no result_type;
+    typedef T object_type;
+    static const T& get_ref (const T& x) {return x;}
+  };
+
+  template <typename T>
+  struct object_pointer_traits<T*>
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const T* p) {return *p;}
+  };
+
+  template <typename T>
+  struct object_pointer_traits<T* const>
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const T* p) {return *p;}
+  };
+
+  template <typename T, template <typename> class P>
+  struct object_pointer_traits<P<T> >
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const P<T>& p) {
+      return pointer_traits<P<T> >::get_ref (p);}
+  };
+
+  template <typename T, typename A1, template <typename, typename> class P>
+  struct object_pointer_traits<P<T, A1> >
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const P<T, A1>& p) {
+      return pointer_traits<P<T, A1> >::get_ref (p);}
+  };
+
+  template <typename T, template <typename> class P>
+  struct object_pointer_traits<const P<T> >
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const P<T>& p) {
+      return pointer_traits<P<T> >::get_ref (p);}
+  };
+
+  template <typename T, typename A1, template <typename, typename> class P>
+  struct object_pointer_traits<const P<T, A1> >
+  {
+    typedef details::meta::yes result_type;
+    typedef T object_type;
+    static const T& get_ref (const P<T, A1>& p) {
+      return pointer_traits<P<T, A1> >::get_ref (p);}
+  };
+
   inline database::
   database (database_id id)
       : id_ (id), tracer_ (0), schema_version_seq_ (1)
@@ -99,6 +162,13 @@ namespace odb
 
   template <typename T>
   inline typename object_traits<T>::id_type database::
+  persist (const T& obj)
+  {
+    return persist_<const T, id_common> (obj);
+  }
+
+  template <typename T>
+  inline typename object_traits<T>::id_type database::
   persist (T* p)
   {
     typedef typename object_traits<T>::pointer_type object_pointer;
@@ -165,6 +235,13 @@ namespace odb
     return persist_<T, id_common> (pobj);
   }
 
+  template <typename I>
+  inline void database::
+  persist (I b, I e, bool cont)
+  {
+    persist_<I, id_common> (b, e, cont);
+  }
+
   template <typename T>
   inline typename object_traits<T>::pointer_type database::
   load (const typename object_traits<T>::id_type& id)
@@ -326,6 +403,13 @@ namespace odb
     update_<T, id_common> (pobj);
   }
 
+  template <typename I>
+  inline void database::
+  update (I b, I e, bool cont)
+  {
+    update_<I, id_common> (b, e, cont);
+  }
+
   template <typename T>
   inline void database::
   update (const T& obj, const section& s)
@@ -415,6 +499,20 @@ namespace odb
     erase_<T, id_common> (pobj);
   }
 
+  template <typename T, typename I>
+  inline void database::
+  erase (I idb, I ide, bool cont)
+  {
+    erase_id_<I, T, id_common> (idb, ide, cont);
+  }
+
+  template <typename I>
+  inline void database::
+  erase (I ob, I oe, bool cont)
+  {
+    erase_object_<I, id_common> (ob, oe, cont);
+  }
+
   template <typename T>
   inline unsigned long long database::
   erase_query ()
@@ -622,6 +720,26 @@ namespace odb
 
   // Implementations (i.e., the *_() functions).
   //
+  template <typename I, database_id DB>
+  inline void database::
+  persist_ (I b, I e, bool cont)
+  {
+    // Sun CC with non-standard STL does not have iterator_traits.
+    //
+#ifndef _RWSTD_NO_CLASS_PARTIAL_SPEC
+    typedef typename std::iterator_traits<I>::value_type value_type;
+#else
+    // Assume iterator is just a pointer.
+    //
+    typedef typename object_pointer_traits<I>::object_type value_type;
+#endif
+
+    typedef object_pointer_traits<value_type> opt;
+
+    persist_<I, typename opt::object_type, id_common> (
+      b, e, cont, typename opt::result_type ());
+  }
+
   template <typename T, database_id DB>
   inline typename object_traits<T>::pointer_type database::
   find_ (const typename object_traits<T>::id_type& id)
-- 
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