diff options
author | Constantin Michael <constantin@codesynthesis.com> | 2011-09-16 10:39:36 +0200 |
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committer | Constantin Michael <constantin@codesynthesis.com> | 2011-09-19 10:35:17 +0200 |
commit | 946c283a971f09a4d1f72066d17a684f62f51d88 (patch) | |
tree | e34091b61f757aae17d9066b4e425175c44601f4 /odb/oracle/statement-cache.hxx | |
parent | a5510b8f0ef6d5aa7cce21a719de726b669aa394 (diff) |
Add container-statements, object-statments, view-statements and statement cache
Diffstat (limited to 'odb/oracle/statement-cache.hxx')
-rw-r--r-- | odb/oracle/statement-cache.hxx | 85 |
1 files changed, 85 insertions, 0 deletions
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 |