diff options
Diffstat (limited to 'libodbcpp/column.h')
| -rw-r--r-- | libodbcpp/column.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libodbcpp/column.h b/libodbcpp/column.h index 3b3370f..67dd0c4 100644 --- a/libodbcpp/column.h +++ b/libodbcpp/column.h @@ -22,7 +22,7 @@ namespace ODBC { operator Glib::ustring () const; operator struct tm () const; virtual void rebind(Command *, unsigned int col) const = 0; - virtual Glib::ustring compose() const = 0; + virtual const Glib::ustring & compose() const = 0; virtual Glib::ustring compose(const Glib::ustring & fmt) const = 0; virtual int writeToBuf(char ** buf) const = 0; virtual int writeToBuf(char ** buf, const char * fmt) const = 0; @@ -30,6 +30,8 @@ namespace ODBC { const unsigned int colNo; const Glib::ustring name; + protected: + mutable Glib::ustring * composeCache; private: SQLUINTEGER bindSize; // Allocated memory friend class SelectCommand; @@ -40,7 +42,7 @@ namespace ODBC { _Column(const Glib::ustring &, unsigned int); ~_Column() {} void rebind(Command *, unsigned int col) const; - Glib::ustring compose() const; + const Glib::ustring & compose() const; Glib::ustring compose(const Glib::ustring & fmt) const; int writeToBuf(char ** buf) const; int writeToBuf(char ** buf, const char * fmt) const; |