Library: Data/MySQL
Package: MySQL
Header: Poco/Data/MySQL/Extractor.h
Extracts and converts data values from the result row returned by MySQL. If NULL is received, the incoming val value is not changed and false is returned
Direct Base Classes: Poco::Data::AbstractExtractor
All Base Classes: Poco::Data::AbstractExtractor
Member Functions: extract
Inherited Functions: extract
Extractor(
StatementExecutor & st,
ResultMetadata & md
);
Creates the Extractor.
virtual ~Extractor();
Destroys the Extractor.
virtual bool extract(
std::size_t pos,
Poco::Int8 & val
);
Extracts an Int8.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::UInt8 & val
);
Extracts an UInt8.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::Int16 & val
);
Extracts an Int16.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::UInt16 & val
);
Extracts an UInt16.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::Int32 & val
);
Extracts an Int32.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::UInt32 & val
);
Extracts an UInt32.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::Int64 & val
);
Extracts an Int64.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::UInt64 & val
);
Extracts an UInt64.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
bool & val
);
Extracts a boolean.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
float & val
);
Extracts a float.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
double & val
);
Extracts a double.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
char & val
);
Extracts a single character.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
std::string & val
);
Extracts a string.
See also: Poco::Data::AbstractExtractor::extract()
virtual bool extract(
std::size_t pos,
Poco::Data::BLOB & val
);
Extracts a BLOB.