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// file : odb/pgsql/statement.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_PGSQL_STATEMENT_HXX
#define ODB_PGSQL_STATEMENT_HXX
#include <odb/pre.hxx>
#include <string>
#include <cstddef> // std::size_t
#include <libpq-fe.h>
#include <odb/details/shared-ptr.hxx>
#include <odb/pgsql/version.hxx>
#include <odb/pgsql/binding.hxx>
#include <odb/pgsql/details/export.hxx>
namespace odb
{
namespace pgsql
{
class connection;
class LIBODB_PGSQL_EXPORT statement: public details::shared_base
{
public:
virtual
~statement () = 0;
protected:
statement (connection&,
const std::string& name,
const std::string& stmt,
const Oid* types,
std::size_t types_count);
protected:
connection& conn_;
std::string name_;
};
class LIBODB_PGSQL_EXPORT insert_statement: public statement
{
public:
virtual
~insert_statement ();
insert_statement (connection& conn,
const std::string& name,
const std::string& stmt,
const Oid* types,
std::size_t types_count,
native_binding& data);
// Return true if successful and false if the row is a duplicate.
// All other errors are reported by throwing exceptions.
//
bool
execute ();
unsigned long long
id ();
private:
insert_statement (const insert_statement&);
insert_statement& operator= (const insert_statement&);
private:
native_binding& data_;
Oid oid_;
};
class LIBODB_PGSQL_EXPORT update_statement: public statement
{
public:
virtual
~update_statement ();
// Asssumes that cond.values, cond.lengths, and cond.formats are
// suffixes of data.values, data.lengths, and data.formats
// respectively.
//
update_statement (connection& conn,
const std::string& name,
const std::string& stmt,
const Oid* types,
std::size_t types_count,
native_binding& cond,
native_binding& data);
void
execute ();
private:
update_statement (const update_statement&);
update_statement& operator= (const update_statement&);
private:
native_binding& cond_;
native_binding& data_;
};
class LIBODB_PGSQL_EXPORT delete_statement: public statement
{
public:
virtual
~delete_statement ();
delete_statement (connection& conn,
const std::string& name,
const std::string& stmt,
const Oid* types,
std::size_t types_count,
native_binding& cond);
unsigned long long
execute ();
private:
delete_statement (const delete_statement&);
delete_statement& operator= (const delete_statement&);
private:
native_binding& cond_;
};
}
}
#include <odb/post.hxx>
#endif // ODB_PGSQL_STATEMENT_HXX
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