Library: Data
Package: MySQL
Header: Poco/Data/MySQL/Extractor.h
Description
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
Inheritance
Direct Base Classes: Poco::Data::AbstractExtractor
All Base Classes: Poco::Data::AbstractExtractor
Member Summary
Member Functions: extract
Inherited Functions: extract
Constructors
Extractor
Extractor(
StatementExecutor & st,
ResultMetadata & md
);
Creates the Extractor.
Destructor
~Extractor 
virtual ~Extractor();
Destroys the Extractor.
Member Functions
extract
virtual bool extract(
std::size_t pos,
Poco::Int8 & val
);
Extracts an Int8.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::UInt8 & val
);
Extracts an UInt8.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::Int16 & val
);
Extracts an Int16.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::UInt16 & val
);
Extracts an UInt16.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::Int32 & val
);
Extracts an Int32.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::UInt32 & val
);
Extracts an UInt32.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::Int64 & val
);
Extracts an Int64.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::UInt64 & val
);
Extracts an UInt64.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
bool & val
);
Extracts a boolean.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
float & val
);
Extracts a float.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
double & val
);
Extracts a double.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
char & val
);
Extracts a single character.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
std::string & val
);
Extracts a string.
See also: Poco::Data::AbstractExtractor::extract()
extract
virtual bool extract(
std::size_t pos,
Poco::Data::BLOB & val
);
Extracts a BLOB.