Poco::Data::PostgreSQL

class Extractor

Library: Data/PostgreSQL
Package: PostgreSQL
Header: Poco/Data/PostgreSQL/Extractor.h

Description

Extracts and converts data values from the result row returned by PostgreSQL. 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, isNull, reset

Inherited Functions: extract, isNull, reset, reverseTranscode, transcode, transcodeRequired

Types Aliases

Ptr

using Ptr = SharedPtr < Extractor >;

Constructors

Extractor

Extractor(
    StatementExecutor & st
);

Creates the Extractor.

Destructor

~Extractor virtual

~Extractor() override;

Destroys the Extractor.

Member Functions

extract virtual

bool extract(
    std::size_t pos,
    Poco::Int8 & val
) override;

Extracts an Int8.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::UInt8 & val
) override;

Extracts an UInt8.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Int16 & val
) override;

Extracts an Int16.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::UInt16 & val
) override;

Extracts an UInt16.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Int32 & val
) override;

Extracts an Int32.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::UInt32 & val
) override;

Extracts an UInt32.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Int64 & val
) override;

Extracts an Int64.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::UInt64 & val
) override;

Extracts an UInt64.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    bool & val
) override;

Extracts a boolean.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    float & val
) override;

Extracts a float.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    double & val
) override;

Extracts a double.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    char & val
) override;

Extracts a single character.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::string & val
) override;

Extracts a string.

See also: Poco::Data::AbstractExtractor::extract()

extract

bool extract(
    std::size_t pos,
    Poco::Data::BLOB & val
) override;

Extracts a BLOB.

extract

bool extract(
    std::size_t pos,
    Poco::Data::CLOB & val
) override;

Extracts a CLOB.

extract virtual

bool extract(
    std::size_t pos,
    DateTime & val
) override;

Extracts a DateTime. Returns false if null was received.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Date & val
) override;

Extracts a Date. Returns false if null was received.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Time & val
) override;

Extracts a Time. Returns false if null was received.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    UUID & val
) override;

Extracts a UUID. Returns false if null was received.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Any & val
) override;

Extracts an Any. Returns false if null was received.

See also: Poco::Data::AbstractExtractor::extract()

extract

bool extract(
    std::size_t pos,
    Dynamic::Var & val
) override;

Extracts a Dynamic::Var. Returns false if null was received.

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::Int8 > & val
) override;

Extracts a nullable nullable Int8.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::UInt8 > & val
) override;

Extracts a nullable nullable UInt8.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::Int16 > & val
) override;

Extracts a nullable nullable Int16.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::UInt16 > & val
) override;

Extracts a nullable nullable UInt16.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::Int32 > & val
) override;

Extracts a nullable nullable Int32.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::UInt32 > & val
) override;

Extracts a nullable nullable UInt32.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::Int64 > & val
) override;

Extracts a nullable nullable Int64.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::UInt64 > & val
) override;

Extracts a nullable nullable UInt64.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < bool > & val
) override;

Extracts a nullable boolean.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < float > & val
) override;

Extracts a nullable float.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < double > & val
) override;

Extracts a nullable double.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < char > & val
) override;

Extracts a nullable single character.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < std::string > & val
) override;

Extracts a nullable string.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < UTF16String > & val
) override;

Extracts a nullable UTF16String.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < BLOB > & val
) override;

Extracts a nullable BLOB.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < CLOB > & val
) override;

Extracts a nullable CLOB.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < DateTime > & val
) override;

Extracts a nullable DateTime.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Date > & val
) override;

Extracts a nullable Date.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Time > & val
) override;

Extracts a nullable Time.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < UUID > & val
) override;

Extracts a nullable UUID.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Any > & val
) override;

Extracts a nullable nullable Any.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    Poco::Nullable < Poco::Dynamic::Var > & val
) override;

Extracts a nullable Var.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::Int8 > & val
) override;

Extracts an Int8 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::Int8 > & val
) override;

Extracts an Int8 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::Int8 > & val
) override;

Extracts an Int8 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::UInt8 > & val
) override;

Extracts an UInt8 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::UInt8 > & val
) override;

Extracts an UInt8 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::UInt8 > & val
) override;

Extracts an UInt8 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::Int16 > & val
) override;

Extracts an Int16 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::Int16 > & val
) override;

Extracts an Int16 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::Int16 > & val
) override;

Extracts an Int16 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::UInt16 > & val
) override;

Extracts an UInt16 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::UInt16 > & val
) override;

Extracts an UInt16 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::UInt16 > & val
) override;

Extracts an UInt16 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::Int32 > & val
) override;

Extracts an Int32 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::Int32 > & val
) override;

Extracts an Int32 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::Int32 > & val
) override;

Extracts an Int32 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::UInt32 > & val
) override;

Extracts an UInt32 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::UInt32 > & val
) override;

Extracts an UInt32 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::UInt32 > & val
) override;

Extracts an UInt32 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::Int64 > & val
) override;

Extracts an Int64 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::Int64 > & val
) override;

Extracts an Int64 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::Int64 > & val
) override;

Extracts an Int64 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Poco::UInt64 > & val
) override;

Extracts an UInt64 vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Poco::UInt64 > & val
) override;

Extracts an UInt64 deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Poco::UInt64 > & val
) override;

Extracts an UInt64 list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < bool > & val
) override;

Extracts a boolean vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < bool > & val
) override;

Extracts a boolean deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < bool > & val
) override;

Extracts a boolean list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < float > & val
) override;

Extracts a float vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < float > & val
) override;

Extracts a float deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < float > & val
) override;

Extracts a float list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < double > & val
) override;

Extracts a double vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < double > & val
) override;

Extracts a double deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < double > & val
) override;

Extracts a double list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < char > & val
) override;

Extracts a character vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < char > & val
) override;

Extracts a character deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < char > & val
) override;

Extracts a character list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < std::string > & val
) override;

Extracts a string vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < std::string > & val
) override;

Extracts a string deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < std::string > & val
) override;

Extracts a string list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < BLOB > & val
) override;

Extracts a BLOB vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < BLOB > & val
) override;

Extracts a BLOB deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < BLOB > & val
) override;

Extracts a BLOB list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < CLOB > & val
) override;

Extracts a CLOB vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < CLOB > & val
) override;

Extracts a CLOB deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < CLOB > & val
) override;

Extracts a CLOB list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < DateTime > & val
) override;

Extracts a DateTime vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < DateTime > & val
) override;

Extracts a DateTime deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < DateTime > & val
) override;

Extracts a DateTime list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Date > & val
) override;

Extracts a Date vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Date > & val
) override;

Extracts a Date deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Date > & val
) override;

Extracts a Date list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Time > & val
) override;

Extracts a Time vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Time > & val
) override;

Extracts a Time deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Time > & val
) override;

Extracts a Time list.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::vector < Any > & val
) override;

Extracts an Any vector.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::deque < Any > & val
) override;

Extracts an Any deque.

See also: Poco::Data::AbstractExtractor::extract()

extract virtual

bool extract(
    std::size_t pos,
    std::list < Any > & val
) override;

Extracts an Any list.

See also: Poco::Data::AbstractExtractor::extract()

extract

bool extract(
    std::size_t pos,
    std::vector < Dynamic::Var > & val
) override;

Extracts a Dynamic::Var vector.

extract

bool extract(
    std::size_t pos,
    std::deque < Dynamic::Var > & val
) override;

Extracts a Dynamic::Var deque.

extract

bool extract(
    std::size_t pos,
    std::list < Dynamic::Var > & val
) override;

Extracts a Dynamic::Var list.

isNull virtual

bool isNull(
    std::size_t col,
    std::size_t row
) override;

Returns true if the value at [col,row] position is null.

See also: Poco::Data::AbstractExtractor::isNull()

reset virtual

void reset() override;

Resets any information internally cached by the extractor. ///////// /////////

See also: Poco::Data::AbstractExtractor::reset()

POCO C++ Libraries 1.14.0-all
Copyright © 2024, Applied Informatics Software Engineering GmbH and Contributors