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authorConstantin Michael <constantin@codesynthesis.com>2011-09-16 10:39:36 +0200
committerConstantin Michael <constantin@codesynthesis.com>2011-09-19 10:35:17 +0200
commit946c283a971f09a4d1f72066d17a684f62f51d88 (patch)
treee34091b61f757aae17d9066b4e425175c44601f4
parenta5510b8f0ef6d5aa7cce21a719de726b669aa394 (diff)
Add container-statements, object-statments, view-statements and statement cache
-rw-r--r--odb/oracle/container-statements.hxx274
-rw-r--r--odb/oracle/container-statements.txx75
-rw-r--r--odb/oracle/makefile2
-rw-r--r--odb/oracle/object-statements.cxx17
-rw-r--r--odb/oracle/object-statements.hxx414
-rw-r--r--odb/oracle/object-statements.ixx70
-rw-r--r--odb/oracle/object-statements.txx118
-rw-r--r--odb/oracle/statement-cache.hxx85
-rw-r--r--odb/oracle/statements-base.cxx17
-rw-r--r--odb/oracle/statements-base.hxx51
-rw-r--r--odb/oracle/view-statements.hxx109
-rw-r--r--odb/oracle/view-statements.txx35
12 files changed, 1267 insertions, 0 deletions
diff --git a/odb/oracle/container-statements.hxx b/odb/oracle/container-statements.hxx
new file mode 100644
index 0000000..23d2b45
--- /dev/null
+++ b/odb/oracle/container-statements.hxx
@@ -0,0 +1,274 @@
+// file : odb/oracle/container-statements.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_CONTAINER_STATEMENTS_HXX
+#define ODB_ORACLE_CONTAINER_STATEMENTS_HXX
+
+#include <odb/pre.hxx>
+
+#include <cstddef> // std::size_t
+
+#include <odb/forward.hxx>
+#include <odb/traits.hxx>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/oracle-types.hxx>
+#include <odb/oracle/oracle-fwd.hxx> // sb2
+#include <odb/oracle/statement.hxx>
+
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ 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 oracle::insert_statement insert_statement_type;
+ typedef oracle::select_statement select_statement_type;
+ typedef oracle::delete_statement delete_statement_type;
+
+ typedef oracle::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_;
+ }
+
+ sb2*
+ cond_image_indicator ()
+ {
+ return cond_image_indicator_;
+ }
+
+ // 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_;
+ }
+
+ sb2*
+ data_image_indicator ()
+ {
+ return data_image_indicator_;
+ }
+
+ //
+ // 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_;
+ sb2* cond_image_indicator_;
+
+ 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_;
+ sb2* data_image_indicator_;
+
+ 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 oracle::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];
+ sb2 cond_image_indicator_array_[traits::cond_column_count];
+
+ bind data_image_bind_array_[traits::data_column_count];
+ sb2 data_image_indicator_array_[traits::data_column_count];
+ };
+ }
+}
+
+#include <odb/oracle/container-statements.txx>
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_CONTAINER_STATEMENTS_HXX
diff --git a/odb/oracle/container-statements.txx b/odb/oracle/container-statements.txx
new file mode 100644
index 0000000..e7dcb06
--- /dev/null
+++ b/odb/oracle/container-statements.txx
@@ -0,0 +1,75 @@
+// file : odb/oracle/container-statements.txx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <cstddef> // std::size_t
+#include <cstring> // std::memset
+
+namespace odb
+{
+ namespace oracle
+ {
+ // container_statements
+ //
+
+ template <typename T>
+ container_statements<T>::
+ container_statements (connection_type& conn)
+ : conn_ (conn),
+ functions_ (this,
+ &traits::insert_one,
+ &traits::load_all,
+ &traits::delete_all),
+ id_binding_ (0),
+ cond_image_binding_ (0, 0), // Initialized by impl.
+ data_image_binding_ (0, 0) // Initialized by impl.
+ {
+ cond_image_.version = 0;
+ cond_image_version_ = 0;
+ cond_id_binding_version_ = 0;
+
+ data_image_.version = 0;
+ data_image_version_ = 0;
+ data_id_binding_version_ = 0;
+ }
+
+ template <typename T>
+ container_statements_impl<T>::
+ container_statements_impl (connection_type& conn)
+ : base (conn)
+ {
+ this->cond_image_bind_ = cond_image_bind_array_;
+ this->cond_image_indicator_ = cond_image_indicator_array_;
+
+ this->data_image_bind_ = data_image_bind_array_;
+ this->data_image_indicator_ = data_image_indicator_array_;
+
+ this->cond_image_binding_.bind = this->cond_image_bind_;
+ this->cond_image_binding_.count = traits::cond_column_count;
+
+ this->data_image_binding_.bind = this->data_image_bind_;
+ this->data_image_binding_.count = traits::data_column_count;
+
+ std::memset (cond_image_bind_array_, 0, sizeof (cond_image_bind_array_));
+ std::memset (cond_image_indicator_array_,
+ 0,
+ sizeof (cond_image_indicator_array_));
+
+ for (std::size_t i (0); i < traits::cond_column_count; ++i)
+ cond_image_bind_array_[i].indicator = cond_image_indicator_array_ + i;
+
+ std::memset (data_image_bind_array_, 0, sizeof (data_image_bind_array_));
+ std::memset (data_image_indicator_array_,
+ 0,
+ sizeof (data_image_indicator_array_));
+
+ for (std::size_t i (0); i < traits::data_column_count; ++i)
+ data_image_bind_array_[i].indicator = data_image_indicator_array_ + i;
+
+ this->insert_one_text_ = traits::insert_one_statement;
+ this->select_all_text_ = traits::select_all_statement;
+ this->delete_all_text_ = traits::delete_all_statement;
+ }
+ }
+}
diff --git a/odb/oracle/makefile b/odb/oracle/makefile
index 7f16e5d..cfa42ae 100644
--- a/odb/oracle/makefile
+++ b/odb/oracle/makefile
@@ -13,7 +13,9 @@ connection-factory.cxx \
database.cxx \
error.cxx \
exceptions.cxx \
+object-statements.cxx \
statement.cxx \
+statements-base.cxx \
transaction.cxx \
transaction-impl.cxx
diff --git a/odb/oracle/object-statements.cxx b/odb/oracle/object-statements.cxx
new file mode 100644
index 0000000..fb64823
--- /dev/null
+++ b/odb/oracle/object-statements.cxx
@@ -0,0 +1,17 @@
+// file : odb/oracle/object-statements.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/oracle/object-statements.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ object_statements_base::
+ ~object_statements_base ()
+ {
+ }
+ }
+}
diff --git a/odb/oracle/object-statements.hxx b/odb/oracle/object-statements.hxx
new file mode 100644
index 0000000..284bb53
--- /dev/null
+++ b/odb/oracle/object-statements.hxx
@@ -0,0 +1,414 @@
+// file : odb/oracle/object-statements.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_OBJECT_STATEMENTS_HXX
+#define ODB_ORACLE_OBJECT_STATEMENTS_HXX
+
+#include <odb/pre.hxx>
+
+#include <vector>
+#include <cassert>
+#include <cstddef> // std::size_t
+
+#include <odb/forward.hxx>
+#include <odb/traits.hxx>
+#include <odb/cache-traits.hxx>
+
+#include <odb/details/shared-ptr.hxx>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/oracle-types.hxx>
+#include <odb/oracle/oracle-fwd.hxx> // sb2
+#include <odb/oracle/statement.hxx>
+#include <odb/oracle/statements-base.hxx>
+
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ class LIBODB_ORACLE_EXPORT object_statements_base: public statements_base
+ {
+ // Locking.
+ //
+ public:
+ void
+ lock ()
+ {
+ assert (!locked_);
+ locked_ = true;
+ }
+
+ void
+ unlock ()
+ {
+ assert (locked_);
+ locked_ = false;
+ }
+
+ bool
+ locked () const
+ {
+ return locked_;
+ }
+
+ public:
+ virtual
+ ~object_statements_base ();
+
+ protected:
+ object_statements_base (connection_type& conn)
+ : statements_base (conn), locked_ (false)
+ {
+ }
+
+ struct auto_unlock
+ {
+ // Unlocks the statement on construction and re-locks it on
+ // destruction.
+ //
+ auto_unlock (object_statements_base&);
+ ~auto_unlock ();
+
+ private:
+ auto_unlock (const auto_unlock&);
+ auto_unlock& operator= (const auto_unlock&);
+
+ private:
+ object_statements_base& s_;
+ };
+
+ protected:
+ bool locked_;
+ };
+
+ template <typename T>
+ class object_statements: public object_statements_base
+ {
+ public:
+ typedef T object_type;
+ typedef odb::object_traits<object_type> object_traits;
+ typedef typename object_traits::id_type id_type;
+ typedef typename object_traits::pointer_type pointer_type;
+ typedef typename object_traits::image_type image_type;
+ typedef typename object_traits::id_image_type id_image_type;
+
+ typedef pointer_cache_traits<pointer_type> object_cache_traits;
+
+ typedef
+ typename object_traits::container_statement_cache_type
+ container_statement_cache_type;
+
+ typedef oracle::insert_statement persist_statement_type;
+ typedef oracle::select_statement find_statement_type;
+ typedef oracle::update_statement update_statement_type;
+ typedef oracle::delete_statement erase_statement_type;
+
+ // Automatic lock.
+ //
+ struct auto_lock
+ {
+ // Lock the statements unless they are already locked in which
+ // case subsequent calls to locked() will return false.
+ //
+ auto_lock (object_statements&);
+
+ // Unlock the statements if we are holding the lock and clear
+ // the delayed loads. This should only happen in case an
+ // exception is thrown. In normal circumstances, the user
+ // should call unlock() explicitly.
+ //
+ ~auto_lock ();
+
+ // Return true if this auto_lock instance holds the lock.
+ //
+ bool
+ locked () const;
+
+ // Unlock the statements.
+ //
+ void
+ unlock ();
+
+ private:
+ auto_lock (const auto_lock&);
+ auto_lock& operator= (const auto_lock&);
+
+ private:
+ object_statements& s_;
+ bool locked_;
+ };
+
+ public:
+ object_statements (connection_type&);
+
+ virtual
+ ~object_statements ();
+
+ // Delayed loading.
+ //
+ void
+ delay_load (const id_type& id,
+ object_type& obj,
+ const typename object_cache_traits::position_type& p)
+ {
+ delayed_.push_back (delayed_load (id, obj, p));
+ }
+
+ void
+ load_delayed ()
+ {
+ assert (locked ());
+
+ if (!delayed_.empty ())
+ load_delayed_ ();
+ }
+
+ void
+ clear_delayed ()
+ {
+ if (!delayed_.empty ())
+ clear_delayed_ ();
+ }
+
+ // Object image.
+ //
+ image_type&
+ image ()
+ {
+ return image_;
+ }
+
+ std::size_t
+ in_image_version () const
+ {
+ return in_image_version_;
+ }
+
+ std::size_t
+ out_image_version () const
+ {
+ return out_image_version_;
+ }
+
+ void
+ in_image_version (std::size_t v)
+ {
+ in_image_version_ = v;
+ }
+
+ void
+ out_image_version (std::size_t v)
+ {
+ out_image_version_ = v;
+ }
+
+ binding&
+ in_image_binding ()
+ {
+ return in_image_binding_;
+ }
+
+ sb2*
+ in_image_indicator ()
+ {
+ return in_image_indicator_;
+ }
+
+ binding&
+ out_image_binding ()
+ {
+ return out_image_binding_;
+ }
+
+ sb2*
+ out_image_indicator ()
+ {
+ return out_image_indicator_;
+ }
+
+ // Object id image.
+ //
+ id_image_type&
+ id_image ()
+ {
+ return id_image_;
+ }
+
+ std::size_t
+ id_image_version () const
+ {
+ return id_image_version_;
+ }
+
+ void
+ id_image_version (std::size_t v)
+ {
+ id_image_version_ = v;
+ }
+
+ binding&
+ id_image_binding ()
+ {
+ return id_image_binding_;
+ }
+
+ persist_statement_type&
+ persist_statement ()
+ {
+ if (persist_ == 0)
+ persist_.reset (
+ new (details::shared) persist_statement_type (
+ conn_,
+ object_traits::persist_statement,
+ in_image_binding_,
+ object_traits::auto_id));
+
+ return *persist_;
+ }
+
+ find_statement_type&
+ find_statement ()
+ {
+ if (find_ == 0)
+ find_.reset (
+ new (details::shared) find_statement_type (
+ conn_,
+ object_traits::find_statement,
+ id_image_binding_,
+ out_image_binding_,
+ 4096)); // Hardcode a 4kB LOB prefetch size.
+
+ return *find_;
+ }
+
+ update_statement_type&
+ update_statement ()
+ {
+ if (update_ == 0)
+ update_.reset (
+ new (details::shared) update_statement_type (
+ conn_,
+ object_traits::update_statement,
+ id_image_binding_,
+ in_image_binding_));
+
+ return *update_;
+ }
+
+ erase_statement_type&
+ erase_statement ()
+ {
+ if (erase_ == 0)
+ erase_.reset (
+ new (details::shared) erase_statement_type (
+ conn_,
+ object_traits::erase_statement,
+ id_image_binding_));
+
+ return *erase_;
+ }
+
+ // Container statement cache.
+ //
+ container_statement_cache_type&
+ container_statment_cache ()
+ {
+ return container_statement_cache_;
+ }
+
+ private:
+ object_statements (const object_statements&);
+ object_statements& operator= (const object_statements&);
+
+ private:
+ void
+ load_delayed_ ();
+
+ void
+ clear_delayed_ ();
+
+ private:
+ container_statement_cache_type container_statement_cache_;
+
+ image_type image_;
+
+ // In (send) binding. The last element is the id parameter.
+ //
+ std::size_t in_image_version_;
+ binding in_image_binding_;
+ bind in_image_bind_[object_traits::in_column_count + 1];
+ sb2 in_image_indicator_[object_traits::in_column_count + 1];
+
+ // Out (receive) binding.
+ //
+ std::size_t out_image_version_;
+ binding out_image_binding_;
+ bind out_image_bind_[object_traits::out_column_count];
+ sb2 out_image_indicator_[object_traits::out_column_count];
+
+ // Id image binding (in only)
+ //
+ id_image_type id_image_;
+ std::size_t id_image_version_;
+ binding id_image_binding_;
+
+ details::shared_ptr<persist_statement_type> persist_;
+ details::shared_ptr<find_statement_type> find_;
+ details::shared_ptr<update_statement_type> update_;
+ details::shared_ptr<erase_statement_type> erase_;
+
+ // Delayed loading.
+ //
+ struct delayed_load
+ {
+ typedef typename object_cache_traits::position_type position_type;
+
+ delayed_load () {}
+ delayed_load (const id_type& i, object_type& o, const position_type& p)
+ : id (i), obj (&o), pos (p)
+ {
+ }
+
+ id_type id;
+ object_type* obj;
+ position_type pos;
+ };
+
+ typedef std::vector<delayed_load> delayed_loads;
+ delayed_loads delayed_;
+
+ // Delayed vectors swap guard. See the load_delayed_() function for
+ // details.
+ //
+ struct swap_guard
+ {
+ swap_guard (object_statements& os, delayed_loads& dl)
+ : os_ (os), dl_ (dl)
+ {
+ dl_.swap (os_.delayed_);
+ }
+
+ ~swap_guard ()
+ {
+ os_.clear_delayed ();
+ dl_.swap (os_.delayed_);
+ }
+
+ private:
+ object_statements& os_;
+ delayed_loads& dl_;
+ };
+ };
+ }
+}
+
+#include <odb/oracle/object-statements.ixx>
+#include <odb/oracle/object-statements.txx>
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_OBJECT_STATEMENTS_HXX
diff --git a/odb/oracle/object-statements.ixx b/odb/oracle/object-statements.ixx
new file mode 100644
index 0000000..0121bd8
--- /dev/null
+++ b/odb/oracle/object-statements.ixx
@@ -0,0 +1,70 @@
+// file : odb/oracle/object-statements.ixx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+namespace odb
+{
+ namespace oracle
+ {
+ //
+ // auto_unlock
+ //
+ inline object_statements_base::auto_unlock::
+ auto_unlock (object_statements_base& s)
+ : s_ (s)
+ {
+ s_.unlock ();
+ }
+
+ inline object_statements_base::auto_unlock::
+ ~auto_unlock ()
+ {
+ s_.lock ();
+ }
+
+ //
+ // auto_lock
+ //
+ template <typename T>
+ inline object_statements<T>::auto_lock::
+ auto_lock (object_statements& s)
+ : s_ (s)
+ {
+ if (!s_.locked ())
+ {
+ s_.lock ();
+ locked_ = true;
+ }
+ else
+ locked_ = false;
+ }
+
+ template <typename T>
+ inline object_statements<T>::auto_lock::
+ ~auto_lock ()
+ {
+ if (locked_)
+ {
+ s_.unlock ();
+ s_.clear_delayed ();
+ }
+ }
+
+ template <typename T>
+ inline bool object_statements<T>::auto_lock::
+ locked () const
+ {
+ return locked_;
+ }
+
+ template <typename T>
+ inline void object_statements<T>::auto_lock::
+ unlock ()
+ {
+ assert (locked_);
+ s_.unlock ();
+ locked_ = false;
+ }
+ }
+}
diff --git a/odb/oracle/object-statements.txx b/odb/oracle/object-statements.txx
new file mode 100644
index 0000000..c3c5531
--- /dev/null
+++ b/odb/oracle/object-statements.txx
@@ -0,0 +1,118 @@
+// file : odb/oracle/object-statements.txx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <cstddef> // std::size_t
+#include <cstring> // std::memset
+
+#include <odb/session.hxx>
+#include <odb/callback.hxx>
+#include <odb/exceptions.hxx>
+
+#include <odb/oracle/connection.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ template <typename T>
+ object_statements<T>::
+ ~object_statements ()
+ {
+ }
+
+ template <typename T>
+ object_statements<T>::
+ object_statements (connection_type& conn)
+ : object_statements_base (conn),
+ container_statement_cache_ (conn),
+ in_image_binding_ (in_image_bind_, object_traits::in_column_count),
+ out_image_binding_ (out_image_bind_, object_traits::out_column_count),
+ id_image_binding_ (in_image_bind_ + object_traits::in_column_count, 1)
+ {
+ image_.version = 0;
+ in_image_version_ = 0;
+ out_image_version_ = 0;
+
+ id_image_.version = 0;
+ id_image_version_ = 0;
+
+ std::memset (in_image_bind_, 0, sizeof (in_image_bind_));
+ std::memset (in_image_indicator_, 0, sizeof (in_image_indicator_));
+ std::memset (out_image_bind_, 0, sizeof (out_image_bind_));
+ std::memset (out_image_indicator_, 0, sizeof (out_image_indicator_));
+
+ for (std::size_t i (0); i < object_traits::in_column_count + 1; ++i)
+ in_image_bind_[i].indicator = in_image_indicator_ + i;
+
+ for (std::size_t i (0); i < object_traits::out_column_count; ++i)
+ out_image_bind_[i].indicator = out_image_indicator_ + i;
+ }
+
+ template <typename T>
+ void object_statements<T>::
+ load_delayed_ ()
+ {
+ database& db (connection ().database ());
+
+ delayed_loads dls;
+ swap_guard sg (*this, dls);
+
+ while (!dls.empty ())
+ {
+ delayed_load l (dls.back ());
+ typename object_cache_traits::insert_guard g (l.pos);
+ dls.pop_back ();
+
+ if (!object_traits::find_ (*this, l.id))
+ throw object_not_persistent ();
+
+ object_traits::callback (db, *l.obj, callback_event::pre_load);
+
+ // Our calls to init/load below can result in additional delayed
+ // loads being added to the delayed_ vector. We need to process
+ // those before we call the post callback.
+ //
+ object_traits::init (*l.obj, image (), db);
+ object_traits::load_ (*this, *l.obj); // Load containers, etc.
+
+ if (!delayed_.empty ())
+ load_delayed_ ();
+
+ // Temporarily unlock the statement for the post_load call so that
+ // it can load objects of this type recursively. This is safe to do
+ // because we have completely loaded the current object. Also the
+ // delayed_ list is clear before the unlock and should be clear on
+ // re-lock (since a callback can only call public API functions
+ // which will make sure all the delayed loads are processed before
+ // returning).
+ //
+ {
+ auto_unlock u (*this);
+ object_traits::callback (db, *l.obj, callback_event::post_load);
+ }
+
+ g.release ();
+ }
+ }
+
+ template <typename T>
+ void object_statements<T>::
+ clear_delayed_ ()
+ {
+ // Remove the objects from the session cache.
+ //
+ if (session::has_current ())
+ {
+ for (typename delayed_loads::iterator i (delayed_.begin ()),
+ e (delayed_.end ()); i != e; ++i)
+ {
+ object_cache_traits::erase (i->pos);
+ }
+ }
+
+ delayed_.clear ();
+ }
+ }
+}
diff --git a/odb/oracle/statement-cache.hxx b/odb/oracle/statement-cache.hxx
new file mode 100644
index 0000000..50b0744
--- /dev/null
+++ b/odb/oracle/statement-cache.hxx
@@ -0,0 +1,85 @@
+// file : odb/oracle/statement-cache.hxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_STATEMENT_CACHE_HXX
+#define ODB_ORACLE_STATEMENT_CACHE_HXX
+
+#include <odb/pre.hxx>
+
+#include <map>
+#include <typeinfo>
+
+#include <odb/forward.hxx>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/statements-base.hxx>
+#include <odb/oracle/object-statements.hxx>
+#include <odb/oracle/view-statements.hxx>
+
+#include <odb/details/shared-ptr.hxx>
+#include <odb/details/type-info.hxx>
+
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ class connection;
+
+ class LIBODB_ORACLE_EXPORT statement_cache
+ {
+ public:
+ statement_cache (connection& conn)
+ : conn_ (conn)
+ {
+ }
+
+ template <typename T>
+ object_statements<T>&
+ find_object ()
+ {
+ map::iterator i (map_.find (&typeid (T)));
+
+ if (i != map_.end ())
+ return static_cast<object_statements<T>&> (*i->second);
+
+ details::shared_ptr<object_statements<T> > p (
+ new (details::shared) object_statements<T> (conn_));
+
+ map_.insert (map::value_type (&typeid (T), p));
+ return *p;
+ }
+
+ template <typename T>
+ view_statements<T>&
+ find_view ()
+ {
+ map::iterator i (map_.find (&typeid (T)));
+
+ if (i != map_.end ())
+ return static_cast<view_statements<T>&> (*i->second);
+
+ details::shared_ptr<view_statements<T> > p (
+ new (details::shared) view_statements<T> (conn_));
+
+ map_.insert (map::value_type (&typeid (T), p));
+ return *p;
+ }
+
+ private:
+ typedef std::map<const std::type_info*,
+ details::shared_ptr<statements_base>,
+ details::type_info_comparator> map;
+
+ connection& conn_;
+ map map_;
+ };
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_STATEMENT_CACHE_HXX
diff --git a/odb/oracle/statements-base.cxx b/odb/oracle/statements-base.cxx
new file mode 100644
index 0000000..3a33540
--- /dev/null
+++ b/odb/oracle/statements-base.cxx
@@ -0,0 +1,17 @@
+// file : odb/oracle/statements-base.cxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/oracle/statements-base.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ statements_base::
+ ~statements_base ()
+ {
+ }
+ }
+}
diff --git a/odb/oracle/statements-base.hxx b/odb/oracle/statements-base.hxx
new file mode 100644
index 0000000..7f63d3e
--- /dev/null
+++ b/odb/oracle/statements-base.hxx
@@ -0,0 +1,51 @@
+// file : odb/oracle/statements-base.hxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_STATEMENTS_BASE_HXX
+#define ODB_ORACLE_STATEMENTS_BASE_HXX
+
+#include <odb/pre.hxx>
+
+#include <odb/details/shared-ptr.hxx>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/forward.hxx> // connection
+
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ class LIBODB_ORACLE_EXPORT statements_base: public details::shared_base
+ {
+ public:
+ typedef oracle::connection connection_type;
+
+ connection_type&
+ connection ()
+ {
+ return conn_;
+ }
+
+ public:
+ virtual
+ ~statements_base ();
+
+ protected:
+ statements_base (connection_type& conn)
+ : conn_ (conn)
+ {
+ }
+
+ protected:
+ connection_type& conn_;
+ };
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_STATEMENTS_BASE_HXX
diff --git a/odb/oracle/view-statements.hxx b/odb/oracle/view-statements.hxx
new file mode 100644
index 0000000..4dde079
--- /dev/null
+++ b/odb/oracle/view-statements.hxx
@@ -0,0 +1,109 @@
+// file : odb/oracle/view-statements.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_VIEW_STATEMENTS_HXX
+#define ODB_ORACLE_VIEW_STATEMENTS_HXX
+
+#include <odb/pre.hxx>
+
+#include <cstddef> // std::size_t
+
+#include <odb/forward.hxx>
+#include <odb/traits.hxx>
+
+#include <odb/details/shared-ptr.hxx>
+
+#include <odb/oracle/oracle-types.hxx>
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/statement.hxx>
+#include <odb/oracle/statements-base.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ template <typename T>
+ class view_statements: public statements_base
+ {
+ public:
+ typedef T view_type;
+ typedef odb::view_traits<view_type> view_traits;
+ typedef typename view_traits::pointer_type pointer_type;
+ typedef typename view_traits::image_type image_type;
+
+ typedef oracle::select_statement query_statement_type;
+
+ public:
+ view_statements (connection_type&);
+
+ virtual
+ ~view_statements ();
+
+ // View image.
+ //
+ image_type&
+ image ()
+ {
+ return image_;
+ }
+
+ std::size_t
+ image_version () const
+ {
+ return image_version_;
+ }
+
+ void
+ image_version (std::size_t v)
+ {
+ image_version_ = v;
+ }
+
+ binding&
+ image_binding ()
+ {
+ return image_binding_;
+ }
+
+ sb2*
+ image_indicator ()
+ {
+ return image_indicator_;
+ }
+
+ query_statement_type&
+ query_statement ()
+ {
+ if (query_ == 0)
+ query_.reset (
+ new (details::shared) query_statement_type (
+ conn_,
+ view_traits::query_statement,
+ image_binding_));
+
+ return *query_;
+ }
+
+ private:
+ view_statements (const view_statements&);
+ view_statements& operator= (const view_statements&);
+
+ private:
+ image_type image_;
+ std::size_t image_version_;
+ binding image_binding_;
+ bind image_bind_[view_traits::column_count];
+ sb2 image_indicator_[view_traits::column_count];
+
+ details::shared_ptr<query_statement_type> query_;
+ };
+ }
+}
+
+#include <odb/oracle/view-statements.txx>
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_VIEW_STATEMENTS_HXX
diff --git a/odb/oracle/view-statements.txx b/odb/oracle/view-statements.txx
new file mode 100644
index 0000000..7f7b4c3
--- /dev/null
+++ b/odb/oracle/view-statements.txx
@@ -0,0 +1,35 @@
+// file : odb/oracle/view-statements.txx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <cstddef> // std::size_t
+#include <cstring> // std::memset
+
+namespace odb
+{
+ namespace oracle
+ {
+ template <typename T>
+ view_statements<T>::
+ ~view_statements ()
+ {
+ }
+
+ template <typename T>
+ view_statements<T>::
+ view_statements (connection_type& conn)
+ : statements_base (conn),
+ image_binding_ (image_bind_, view_traits::column_count)
+ {
+ image_.version = 0;
+ image_version_ = 0;
+
+ std::memset (image_bind_, 0, sizeof (image_bind_));
+ std::memset (image_indicator_, 0, sizeof (image_indicator_));
+
+ for (std::size_t i (0) i < view_traits::column_count; ++i)
+ image_bind_[i].indicator = image_indicator_ + i;
+ }
+ }
+}