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.