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// file : odb/prepared-query.hxx
// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_PREPARED_QUERY_HXX
#define ODB_PREPARED_QUERY_HXX
#include <odb/pre.hxx>
#include <odb/forward.hxx>
#include <odb/traits.hxx>
#include <odb/result.hxx>
#include <odb/statement.hxx>
#include <odb/details/export.hxx>
#include <odb/details/shared-ptr.hxx>
namespace odb
{
struct LIBODB_EXPORT prepared_query_impl: details::shared_base
{
virtual
~prepared_query_impl ();
const char* name;
details::shared_ptr<statement> stmt;
details::shared_ptr<result_impl> (*execute) (prepared_query_impl&);
};
template <typename T>
struct prepared_query
{
prepared_query () {}
explicit
prepared_query (details::shared_ptr<prepared_query_impl> impl)
: impl_ (impl) {}
result<T>
execute (bool cache = true)
{
typedef
typename result_base<T, class_traits<T>::kind>::result_impl_type
derived_type;
details::shared_ptr<result_impl> ri (impl_->execute (*impl_));
result<T> r (
details::shared_ptr<derived_type> (
static_cast<derived_type*> (ri.release ())));
if (cache)
r.cache ();
return r;
}
const char*
name () const
{
return impl_->name;
}
typedef odb::statement statement_type;
statement_type&
statement () const
{
return *impl_->stmt;
}
typedef details::shared_ptr<prepared_query_impl>
prepared_query::*unspecified_bool_type;
operator unspecified_bool_type () const
{
return impl_ ? &prepared_query::impl_ : 0;
}
private:
friend class connection;
details::shared_ptr<prepared_query_impl> impl_;
};
namespace core
{
using odb::prepared_query;
}
}
#include <odb/post.hxx>
#endif // ODB_PREPARED_QUERY_HXX
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