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Any and DynamicAny binding/extraction

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This commit is contained in:
Aleksandar Fabijanic
2007-10-31 01:29:21 +00:00
parent 76221cc707
commit e7ac6e383c
28 changed files with 773 additions and 159 deletions
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15
Data/SQLite/include/Poco/Data/SQLite/Binder.h
View File

@@ -43,6 +43,7 @@
#include "Poco/Data/SQLite/SQLite.h"
#include "Poco/Data/AbstractBinder.h"
#include "Poco/Any.h"
#include "Poco/DynamicAny.h"
struct sqlite3_stmt;
@@ -87,6 +88,11 @@ public:
void bind(std::size_t pos, const Poco::UInt64 &val, Direction dir = PD_IN);
/// Binds an UInt64.
#ifndef POCO_LONG_IS_64_BIT
void bind(std::size_t pos, const long &val, Direction dir = PD_IN);
/// Binds a long
#endif
void bind(std::size_t pos, const bool &val, Direction dir = PD_IN);
/// Binds a boolean.
@@ -168,6 +174,15 @@ inline void Binder::bind(std::size_t pos, const Poco::UInt64 &val, Direction dir
}
#ifndef POCO_LONG_IS_64_BIT
inline void Binder::bind(std::size_t pos, const long &val, Direction dir)
{
long tmp = static_cast<long>(val);
bind(pos, tmp, dir);
}
#endif
inline void Binder::bind(std::size_t pos, const bool &val, Direction dir)
{
Poco::Int32 tmp = (val ? 1 : 0);

127
Data/SQLite/include/Poco/Data/SQLite/Extractor.h
View File

@@ -41,8 +41,12 @@
#include "Poco/Data/SQLite/SQLite.h"
#include "Poco/Data/SQLite/Utility.h"
#include "Poco/Data/AbstractExtractor.h"
#include "Poco/Data/MetaColumn.h"
#include "Poco/Data/DataException.h"
#include "Poco/Any.h"
#include "Poco/DynamicAny.h"
#include <vector>
#include <utility>
@@ -93,6 +97,11 @@ public:
bool extract(std::size_t pos, Poco::UInt64& val);
/// Extracts an UInt64.
#ifndef POCO_LONG_IS_64_BIT
bool extract(std::size_t pos, long& val);
/// Extracts a long.
#endif
bool extract(std::size_t pos, bool& val);
/// Extracts a boolean.
@@ -117,6 +126,9 @@ public:
bool extract(std::size_t pos, Poco::Any& val);
/// Extracts an Any.
bool extract(std::size_t pos, Poco::DynamicAny& val);
/// Extracts a DynamicAny.
bool isNull(std::size_t pos);
/// Returns true if the current row value at pos column is null.
/// Because of the loss of information about null-ness of the
@@ -135,6 +147,121 @@ public:
/// Clears the cached nulls indicator vector.
private:
template <typename T>
bool extractImpl(std::size_t pos, T& val)
/// Utility function for extraction of Any and DynamicAny.
{
if (isNull(pos)) return false;
bool ret = false;
switch (Utility::getColumnType(_pStmt, pos))
{
case MetaColumn::FDT_BOOL:
{
bool i = false;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_INT8:
{
Poco::Int8 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_UINT8:
{
Poco::UInt8 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_INT16:
{
Poco::Int16 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_UINT16:
{
Poco::UInt16 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_INT32:
{
Poco::Int32 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_UINT32:
{
Poco::UInt32 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_INT64:
{
Poco::Int64 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_UINT64:
{
Poco::UInt64 i = 0;
ret = extract(pos, i);
val = i;
break;
}
case MetaColumn::FDT_STRING:
{
std::string s;
ret = extract(pos, s);
val = s;
break;
}
case MetaColumn::FDT_DOUBLE:
{
double d(0.0);
ret = extract(pos, d);
val = d;
break;
}
case MetaColumn::FDT_FLOAT:
{
float f(0.0);
ret = extract(pos, f);
val = f;
break;
}
case MetaColumn::FDT_BLOB:
{
BLOB b;
ret = extract(pos, b);
val = b;
break;
}
case MetaColumn::FDT_TIMESTAMP:
{
DateTime dt;
ret = extract(pos, dt);
val = dt;
break;
}
default:
throw Poco::Data::UnknownTypeException("Unknown type during extraction");
}
return ret;
}
sqlite3_stmt* _pStmt;
NullIndVec _nulls;
};