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-rw-r--r--libodbcpp/column.cpp114
-rw-r--r--libodbcpp/column.h38
2 files changed, 39 insertions, 113 deletions
diff --git a/libodbcpp/column.cpp b/libodbcpp/column.cpp
index 4d071e1..8caf9c8 100644
--- a/libodbcpp/column.cpp
+++ b/libodbcpp/column.cpp
@@ -9,15 +9,13 @@
ODBC::Column::Column(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
colNo(i),
name(n),
- selectCmd(sc),
- composeCache(NULL)
+ selectCmd(sc)
{
bindLen = 0;
}
ODBC::Column::~Column()
{
- delete composeCache;
}
void
@@ -41,8 +39,6 @@ ODBC::CharArrayColumn::resize(SQLHANDLE hStmt)
void
ODBC::Column::onScroll()
{
- delete composeCache;
- composeCache = NULL;
}
bool
@@ -68,89 +64,6 @@ ODBC::Column::bind()
}
}
-#define SIMPLEFORMATTER(ctype, deffmtstr) \
- int \
- ODBC::ctype::writeToBuf(char ** buf, const char * fmt) const \
- { \
- return asprintf(buf, fmt, data); \
- } \
- int \
- ODBC::ctype::writeToBuf(char ** buf) const \
- { \
- return writeToBuf(buf, deffmtstr); \
- } \
- const Glib::ustring & \
- ODBC::ctype::compose() const \
- { \
- if (!composeCache) { \
- composeCache = new Glib::ustring(Glib::ustring::compose("%1", data)); \
- } \
- return *composeCache; \
- } \
- Glib::ustring \
- ODBC::ctype::compose(const Glib::ustring & fmt) const \
- { \
- return Glib::ustring::compose(fmt, data); \
- }
-SIMPLEFORMATTER(FloatingPointColumn, "%g");
-SIMPLEFORMATTER(SignedIntegerColumn, "%ld");
-#ifdef COMPLETENESS
-SIMPLEFORMATTER(UnsignedIntegerColumn, "%lu");
-#endif
-
-int
-ODBC::CharArrayColumn::writeToBuf(char ** buf, const char * fmt) const
-{
- return asprintf(buf, fmt, &data[0]);
-}
-int
-ODBC::CharArrayColumn::writeToBuf(char ** buf) const
-{
- return writeToBuf(buf, "%s");
-}
-const Glib::ustring &
-ODBC::CharArrayColumn::compose() const
-{
- if (!composeCache) {
- composeCache = new Glib::ustring(&data.front(), &data[bindLen]);
- }
- return *composeCache;
-}
-Glib::ustring
-ODBC::CharArrayColumn::compose(const Glib::ustring & fmt) const
-{
- return Glib::ustring::compose(fmt, &data.front());
-}
-int
-ODBC::TimeStampColumn::writeToBuf(char ** buf, const char * fmt) const
-{
- *buf = (char *)malloc(300);
- struct tm t;
- t << data;
- return strftime(*buf, 300, fmt, &t);
-}
-int
-ODBC::TimeStampColumn::writeToBuf(char ** buf) const
-{
- return writeToBuf(buf, "%F %T");
-}
-Glib::ustring
-ODBC::TimeStampColumn::compose(const Glib::ustring & fmt) const
-{
- char buf[300];
- struct tm t;
- t << data;
- int len = strftime(buf, sizeof(buf), fmt.c_str(), &t);
- return Glib::ustring(buf, len);
-}
-const Glib::ustring &
-ODBC::TimeStampColumn::compose() const
-{
- if (!composeCache) {
- composeCache = new Glib::ustring(Glib::ustring(compose("%F %T")));
- }
- return *composeCache;
-}
ODBC::TimeStampColumn::operator tm() const
{
struct tm t;
@@ -176,3 +89,28 @@ void operator << (struct tm & target, const SQL_TIMESTAMP_STRUCT & src)
target.tm_min = src.minute;
target.tm_sec = src.second;
}
+
+void
+ODBC::SignedIntegerColumn::apply(ODBC::HandleField & h) const
+{
+ if (isNull()) return h.null();
+ h.integer(data);
+}
+void
+ODBC::FloatingPointColumn::apply(ODBC::HandleField & h) const
+{
+ if (isNull()) return h.null();
+ h.floatingpoint(data);
+}
+void
+ODBC::CharArrayColumn::apply(ODBC::HandleField & h) const
+{
+ if (isNull()) return h.null();
+ h.string(data);
+}
+void
+ODBC::TimeStampColumn::apply(ODBC::HandleField & h) const
+{
+ if (isNull()) return h.null();
+ h.timestamp(data);
+}
diff --git a/libodbcpp/column.h b/libodbcpp/column.h
index 1ea4091..86d4507 100644
--- a/libodbcpp/column.h
+++ b/libodbcpp/column.h
@@ -8,6 +8,14 @@
namespace ODBC {
class SelectCommand;
+ class HandleField {
+ public:
+ virtual void null() = 0;
+ virtual void string(const std::vector<char> &) = 0;
+ virtual void integer(SQLINTEGER) = 0;
+ virtual void floatingpoint(SQLDOUBLE) = 0;
+ virtual void timestamp(const SQL_TIMESTAMP_STRUCT &) = 0;
+ };
class Column : public virtual Bind {
public:
Column(SelectCommand *, const Glib::ustring &, unsigned int);
@@ -34,18 +42,14 @@ namespace ODBC {
virtual operator struct tm () const { throw std::bad_cast(); }
virtual operator SQL_TIMESTAMP_STRUCT () const { throw std::bad_cast(); }
- 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;
bool isNull() const;
+ virtual void apply(HandleField &) const = 0;
const unsigned int colNo;
const Glib::ustring name;
const SelectCommand * selectCmd;
protected:
virtual const Param * meAsAParam() const = 0;
- mutable Glib::ustring * composeCache;
};
class CharArrayColumn : public Column, public Param {
public:
@@ -63,12 +67,9 @@ namespace ODBC {
virtual void * rwDataAddress() { return &data.front(); }
void operator=(const Glib::ustring & d);
void resize(SQLHANDLE);
- virtual const Glib::ustring & compose() const;
- virtual Glib::ustring compose(const Glib::ustring & fmt) const;
- virtual int writeToBuf(char ** buf) const;
- virtual int writeToBuf(char ** buf, const char * fmt) const;
virtual operator std::string () const { return std::string(&data.front(), bindLen); }
virtual operator Glib::ustring () const { return std::string(&data.front(), bindLen); }
+ virtual void apply(HandleField &) const;
protected:
virtual const Param * meAsAParam() const { return this; }
CharArray data;
@@ -80,24 +81,17 @@ namespace ODBC {
virtual SQLSMALLINT ctype() const { return SignedIntegerParam::ctype(); }
virtual SQLULEN size() const { return SignedIntegerParam::size(); }
virtual void * rwDataAddress() { return &data; }
- virtual const Glib::ustring & compose() const;
- virtual Glib::ustring compose(const Glib::ustring & fmt) const;
- virtual int writeToBuf(char ** buf) const;
- virtual int writeToBuf(char ** buf, const char * fmt) const;
virtual operator int () const { return data; }
virtual operator long () const { return data; }
virtual operator long long () const { return data; }
virtual const Param * meAsAParam() const { return this; }
+ virtual void apply(HandleField &) const;
};
#ifdef COMPLETENESS
class UnsignedIntegerColumn : public Column, public UnsignedIntegerParam {
public:
UnsignedIntegerColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
Column(sc, n, i) { }
- virtual const Glib::ustring & compose() const;
- virtual Glib::ustring compose(const Glib::ustring & fmt) const;
- virtual int writeToBuf(char ** buf) const;
- virtual int writeToBuf(char ** buf, const char * fmt) const;
virtual const Param * meAsAParam() const { return this; }
};
#endif
@@ -108,13 +102,10 @@ namespace ODBC {
virtual SQLSMALLINT ctype() const { return FloatingPointParam::ctype(); }
virtual SQLULEN size() const { return FloatingPointParam::size(); }
virtual void * rwDataAddress() { return &data; }
- virtual const Glib::ustring & compose() const;
- virtual Glib::ustring compose(const Glib::ustring & fmt) const;
- virtual int writeToBuf(char ** buf) const;
- virtual int writeToBuf(char ** buf, const char * fmt) const;
virtual operator double () const { return data; }
virtual operator float () const { return data; }
virtual const Param * meAsAParam() const { return this; }
+ virtual void apply(HandleField &) const;
};
class TimeStampColumn : public Column, public TimeStampParam {
public:
@@ -123,13 +114,10 @@ namespace ODBC {
virtual SQLSMALLINT ctype() const { return TimeStampParam::ctype(); }
virtual SQLULEN size() const { return TimeStampParam::size(); }
virtual void * rwDataAddress() { return &data; }
- virtual const Glib::ustring & compose() const;
- virtual Glib::ustring compose(const Glib::ustring & fmt) const;
- virtual int writeToBuf(char ** buf) const;
- virtual int writeToBuf(char ** buf, const char * fmt) const;
virtual operator struct tm () const;
virtual operator SQL_TIMESTAMP_STRUCT () const { return data; }
virtual const Param * meAsAParam() const { return this; }
+ virtual void apply(HandleField &) const;
};
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 05:21:17 +0000