/usr/include/odb/mysql/statement-cache.txx is in libodb-mysql-dev 2.4.0-1ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | // file : odb/mysql/statement-cache.txx
// copyright : Copyright (c) 2005-2015 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#include <odb/mysql/database.hxx>
namespace odb
{
namespace mysql
{
template <typename T>
typename object_traits_impl<T, id_mysql>::statements_type&
statement_cache::
find_object ()
{
typedef
typename object_traits_impl<T, id_mysql>::statements_type
statements_type;
// Clear the cache if the database version has changed. This
// makes sure we don't re-use statements that correspond to
// the old schema.
//
if (version_seq_ != conn_.database ().schema_version_sequence ())
{
map_.clear ();
version_seq_ = conn_.database ().schema_version_sequence ();
}
map::iterator i (map_.find (&typeid (T)));
if (i != map_.end ())
return static_cast<statements_type&> (*i->second);
details::shared_ptr<statements_type> p (
new (details::shared) statements_type (conn_));
map_.insert (map::value_type (&typeid (T), p));
return *p;
}
template <typename T>
view_statements<T>& statement_cache::
find_view ()
{
// We don't cache any statements for views so no need to clear
// the cache.
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;
}
}
}
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