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-rw-r--r--odb/database.txx320
1 files changed, 320 insertions, 0 deletions
diff --git a/odb/database.txx b/odb/database.txx
index 5d4829a..a46b8b0 100644
--- a/odb/database.txx
+++ b/odb/database.txx
@@ -71,6 +71,163 @@ namespace odb
return object_traits::id (obj);
}
+ template <typename T, bool = object_traits<T>::auto_id> struct persist_type;
+ template <typename T> struct persist_type<T, true> {typedef T type;};
+ template <typename T> struct persist_type<T, false> {typedef const T type;};
+
+ template <typename I, typename T, database_id DB>
+ void database::
+ persist_ (I b, I e, bool cont, details::meta::no /*ptr*/)
+ {
+ // T can be const T while object_type will always be T.
+ //
+ typedef typename object_traits<T>::object_type object_type;
+ typedef object_traits_impl<object_type, DB> object_traits;
+
+ multiple_exceptions mex (typeid (object_already_persistent));
+ try
+ {
+ while (b != e && (cont || mex.empty ()))
+ {
+ std::size_t n (0);
+ T* a[object_traits::batch]; // T instead of persist_type for cache.
+
+ for (; b != e && n < object_traits::batch; ++n)
+ {
+ // Compiler error pointing here? Perhaps the passed range is
+ // of const objects?
+ //
+ typename persist_type<object_type>::type* p (&(*b++));
+
+ a[n] = const_cast<T*> (p);
+ }
+
+ // Compiler error pointing here? Perhaps the object or the
+ // database does not support bulk operations?
+ //
+ object_traits::persist (
+ *this,
+ const_cast<typename persist_type<object_type>::type**> (a),
+ n,
+ mex);
+
+ if (mex.fatal ())
+ break;
+
+ for (std::size_t i (0); i < n; ++i)
+ {
+ if (mex[i] != 0) // Don't cache objects that have failed.
+ continue;
+
+ mex.current (i); // Set position in case the below code throws.
+
+ typename object_traits::reference_cache_traits::position_type p (
+ object_traits::reference_cache_traits::insert (
+ *this, reference_cache_type<T>::convert (*a[i])));
+
+ object_traits::reference_cache_traits::persist (p);
+ }
+
+ mex.delta (n);
+ }
+ }
+ catch (const odb::exception& ex)
+ {
+ mex.insert (ex, true);
+ }
+
+ if (!mex.empty ())
+ {
+ mex.prepare ();
+ throw mex;
+ }
+ }
+
+ template <typename P>
+ struct pointer_copy
+ {
+ const P* ref;
+ P copy;
+
+ void assign (const P& p) {ref = &p;}
+ template <typename P1> void assign (const P1& p1)
+ {
+ // The passed pointer should be the same or implicit-convertible
+ // to the object pointer. This way we make sure the object pointer
+ // does not assume ownership of the passed object.
+ //
+ const P& p (p1);
+
+ copy = p;
+ ref = &copy;
+ }
+ };
+
+ template <typename I, typename T, database_id DB>
+ void database::
+ persist_ (I b, I e, bool cont, details::meta::yes /*ptr*/)
+ {
+ // T can be const T while object_type will always be T.
+ //
+ typedef typename object_traits<T>::object_type object_type;
+ typedef typename object_traits<T>::pointer_type pointer_type;
+
+ typedef object_traits_impl<object_type, DB> object_traits;
+
+ multiple_exceptions mex (typeid (object_already_persistent));
+ try
+ {
+ while (b != e && (cont || mex.empty ()))
+ {
+ std::size_t n (0);
+ typename persist_type<object_type>::type* a[object_traits::batch];
+ pointer_copy<pointer_type> p[object_traits::batch];
+
+ for (; b != e && n < object_traits::batch; ++n)
+ {
+ p[n].assign (*b++);
+ a[n] = &pointer_traits<pointer_type>::get_ref (*p[n].ref);
+ }
+
+ // Compiler error pointing here? Perhaps the object or the
+ // database does not support bulk operations?
+ //
+ object_traits::persist (*this, a, n, mex);
+
+ if (mex.fatal ())
+ break;
+
+ for (std::size_t i (0); i < n; ++i)
+ {
+ if (mex[i] != 0) // Don't cache objects that have failed.
+ continue;
+
+ mex.current (i); // Set position in case the below code throws.
+
+ // Get the canonical object pointer and insert it into object cache.
+ //
+ typename object_traits::pointer_cache_traits::position_type pos (
+ object_traits::pointer_cache_traits::insert (
+ *this, pointer_cache_type<pointer_type>::convert (*p[i].ref)));
+
+ object_traits::pointer_cache_traits::persist (pos);
+ }
+
+ mex.delta (n);
+ }
+ }
+ catch (const odb::exception& ex)
+ {
+ mex.insert (ex, true);
+ }
+
+ if (!mex.empty ())
+ {
+ mex.prepare ();
+ throw mex;
+ }
+ }
+
template <typename T, database_id DB>
typename object_traits<T>::pointer_type database::
load_ (const typename object_traits<T>::id_type& id)
@@ -120,6 +277,64 @@ namespace odb
throw object_not_persistent ();
}
+ template <typename I, database_id DB>
+ void database::
+ update_ (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
+
+ // object_pointer_traits<T>::object_type can be const.
+ //
+ typedef object_pointer_traits<value_type> opt;
+
+ typedef
+ typename object_traits<typename opt::object_type>::object_type
+ object_type;
+
+ typedef object_traits_impl<object_type, DB> object_traits;
+
+ multiple_exceptions mex (typeid (object_not_persistent));
+ try
+ {
+ while (b != e && (cont || mex.empty ()))
+ {
+ std::size_t n (0);
+ const object_type* a[object_traits::batch];
+
+ for (; b != e && n < object_traits::batch; ++n)
+ a[n] = &opt::get_ref (*b++);
+
+ // Compiler error pointing here? Perhaps the object or the
+ // database does not support bulk operations?
+ //
+ object_traits::update (*this, a, n, mex);
+
+ if (mex.fatal ())
+ break;
+
+ mex.delta (n);
+ }
+ }
+ catch (const odb::exception& ex)
+ {
+ mex.insert (ex, true);
+ }
+
+ if (!mex.empty ())
+ {
+ mex.prepare ();
+ throw mex;
+ }
+ }
+
template <typename T, database_id DB>
void database::
update_ (const T& obj, const section& s)
@@ -140,6 +355,111 @@ namespace odb
throw section_not_in_object ();
}
+ template <typename I, typename T, database_id DB>
+ void database::
+ erase_id_ (I b, I e, bool cont)
+ {
+ // T is explicitly specified by the caller, so assume it is object type.
+ //
+ typedef T object_type;
+ typedef object_traits_impl<object_type, DB> object_traits;
+ typedef typename object_traits::id_type id_type;
+
+ multiple_exceptions mex (typeid (object_not_persistent));
+ try
+ {
+ while (b != e && (cont || mex.empty ()))
+ {
+ std::size_t n (0);
+ const id_type* a[object_traits::batch];
+
+ for (; b != e && n < object_traits::batch; ++n)
+ // Compiler error pointing here? Perhaps the object id type
+ // and the range element type don't match?
+ //
+ a[n] = &(*b++);
+
+ // Compiler error pointing here? Perhaps the object or the
+ // database does not support bulk operations?
+ //
+ object_traits::erase (*this, a, n, mex);
+
+ if (mex.fatal ())
+ break;
+
+ mex.delta (n);
+ }
+ }
+ catch (const odb::exception& ex)
+ {
+ mex.insert (ex, true);
+ }
+
+ if (!mex.empty ())
+ {
+ mex.prepare ();
+ throw mex;
+ }
+ }
+
+ template <typename I, database_id DB>
+ void database::
+ erase_object_ (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
+
+ // object_pointer_traits<T>::object_type can be const.
+ //
+ typedef object_pointer_traits<value_type> opt;
+
+ typedef
+ typename object_traits<typename opt::object_type>::object_type
+ object_type;
+
+ typedef object_traits_impl<object_type, DB> object_traits;
+
+ multiple_exceptions mex (typeid (object_not_persistent));
+ try
+ {
+ while (b != e && (cont || mex.empty ()))
+ {
+ std::size_t n (0);
+ const object_type* a[object_traits::batch];
+
+ for (; b != e && n < object_traits::batch; ++n)
+ a[n] = &opt::get_ref (*b++);
+
+ // Compiler error pointing here? Perhaps the object or the
+ // database does not support bulk operations?
+ //
+ object_traits::erase (*this, a, n, mex);
+
+ if (mex.fatal ())
+ break;
+
+ mex.delta (n);
+ }
+ }
+ catch (const odb::exception& ex)
+ {
+ mex.insert (ex, true);
+ }
+
+ if (!mex.empty ())
+ {
+ mex.prepare ();
+ throw mex;
+ }
+ }
+
template <typename T, database_id DB>
struct database::query_<T, DB, class_object>
{