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| author | randomdan <randomdan@localhost> | 2010-08-05 23:48:05 +0000 |
|---|---|---|
| committer | randomdan <randomdan@localhost> | 2010-08-05 23:48:05 +0000 |
| commit | fd27b85b004ad13c4139d84a287fd3f3ef444c4b (patch) | |
| tree | cd089ac1c4f2c93a2ee2911db07f49aa096a83f8 /libodbcpp/column.cpp | |
| parent | Fix behaviour of composing a string column (diff) | |
| download | libdbpp-odbc-fd27b85b004ad13c4139d84a287fd3f3ef444c4b.tar.bz2 libdbpp-odbc-fd27b85b004ad13c4139d84a287fd3f3ef444c4b.tar.xz libdbpp-odbc-fd27b85b004ad13c4139d84a287fd3f3ef444c4b.zip | |
Cache the result of default column compose
Use this cache now lots of things are const refs
Diffstat (limited to 'libodbcpp/column.cpp')
| -rw-r--r-- | libodbcpp/column.cpp | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/libodbcpp/column.cpp b/libodbcpp/column.cpp index 31e9642..6f45617 100644 --- a/libodbcpp/column.cpp +++ b/libodbcpp/column.cpp @@ -7,12 +7,14 @@ ODBC::Column::Column(const Glib::ustring & n, unsigned int i) : colNo(i), name(n), + composeCache(NULL), bindSize(0) { } ODBC::Column::~Column() { + delete composeCache; } bool @@ -91,10 +93,13 @@ namespace ODBC { return writeToBuf(buf, "%g"); } template <> - Glib::ustring + const Glib::ustring & _Column<SQLDOUBLE>::compose() const { - return Glib::ustring::compose("%1", value); + if (!composeCache) { + composeCache = new Glib::ustring(Glib::ustring::compose("%1", value)); + } + return *composeCache; } template <> Glib::ustring @@ -115,10 +120,13 @@ namespace ODBC { return writeToBuf(buf, "%ld"); } template <> - Glib::ustring + const Glib::ustring & _Column<SQLINTEGER>::compose() const { - return Glib::ustring::compose("%1", value); + if (!composeCache) { + composeCache = new Glib::ustring(Glib::ustring::compose("%1", value)); + } + return *composeCache; } template <> Glib::ustring @@ -139,10 +147,13 @@ namespace ODBC { return writeToBuf(buf, "%s"); } template <> - Glib::ustring + const Glib::ustring & _Column<SQLCHAR*>::compose() const { - return Glib::ustring((const char *)value); + if (!composeCache) { + composeCache = new Glib::ustring((const char *)value); + } + return *composeCache; } template <> Glib::ustring @@ -176,10 +187,13 @@ namespace ODBC { return Glib::ustring(buf, len); } template <> - Glib::ustring + const Glib::ustring & _Column<SQL_TIMESTAMP_STRUCT>::compose() const { - return compose("%F %T"); + if (!composeCache) { + composeCache = new Glib::ustring(Glib::ustring(compose("%F %T"))); + } + return *composeCache; } } |