Efficiently pull data directly out of a table.
More...
#include <stream_from.hxx>
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| stream_from (transaction_base &, std::string_view table_name) |
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template<typename Columns > |
| stream_from (transaction_base &, std::string_view table_name, Columns const &columns) |
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template<typename Iter > |
| stream_from (transaction_base &, std::string_view table_name, Iter columns_begin, Iter columns_end) |
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| ~stream_from () noexcept |
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| operator bool () const noexcept |
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bool | operator! () const noexcept |
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void | complete () |
| Finish this stream. Call this before continuing to use the connection. More...
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bool | get_raw_line (std::string &) |
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template<typename Tuple > |
stream_from & | operator>> (Tuple &) |
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template<typename... Vs> |
stream_from & | operator>> (std::variant< Vs... > &)=delete |
| Doing this with a std::variant is going to be horrifically borked. More...
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template<typename... TYPE> |
auto | iter () |
| Iterate over this stream. Supports range-based "for" loops. More...
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Efficiently pull data directly out of a table.
◆ stream_from() [1/3]
pqxx::stream_from::stream_from |
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transaction_base & |
tb, |
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std::string_view |
table_name |
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) |
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◆ stream_from() [2/3]
template<typename Columns >
pqxx::stream_from::stream_from |
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transaction_base & |
tb, |
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std::string_view |
table_name, |
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Columns const & |
columns |
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) |
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◆ stream_from() [3/3]
template<typename Iter >
pqxx::stream_from::stream_from |
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transaction_base & |
tb, |
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std::string_view |
table_name, |
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Iter |
columns_begin, |
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Iter |
columns_end |
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) |
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◆ ~stream_from()
pqxx::stream_from::~stream_from |
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noexcept |
◆ complete()
void pqxx::stream_from::complete |
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Finish this stream. Call this before continuing to use the connection.
Consumes all remaining lines, and closes the stream.
This may take a while if you're abandoning the stream before it's done, so skip it in error scenarios where you're not planning to use the connection again afterwards.
◆ get_raw_line()
bool pqxx::stream_from::get_raw_line |
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std::string & |
line | ) |
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◆ iter()
template<typename... TYPE>
auto pqxx::stream_from::iter |
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Iterate over this stream. Supports range-based "for" loops.
Produces an input iterator over the stream.
Do not call this yourself. Use it like "for (auto data : stream.iter())".
◆ operator bool()
pqxx::stream_from::operator bool |
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const |
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noexcept |
◆ operator!()
bool pqxx::stream_from::operator! |
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const |
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noexcept |
◆ operator>>() [1/2]
template<typename Tuple >
stream_from & pqxx::stream_from::operator>> |
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Tuple & |
t | ) |
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◆ operator>>() [2/2]
template<typename... Vs>
stream_from& pqxx::stream_from::operator>> |
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std::variant< Vs... > & |
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delete |
Doing this with a std::variant
is going to be horrifically borked.
The documentation for this class was generated from the following files: