Overview

Module epgsql_command

• Data Types
• Function Index
• Function Details

This module defines the epgsql_command behaviour.
Required callback functions: init/1, execute/2, handle_message/4.

Data Types

command()

command() = module()

execute_return()

execute_return() = {ok, epgsql_sock:pg_sock(), state()} | {stop, Reason::any(), Response::any(), epgsql_sock:pg_sock()}

Execute command. It should send commands to socket. May be called many times if 'handle_message' will return 'requeue'.

handle_message_return()

handle_message_return() = {noaction, epgsql_sock:pg_sock()} | {noaction, epgsql_sock:pg_sock(), state()} | {add_result, Data::any(), Notification::any(), epgsql_sock:pg_sock(), state()} | {add_row, tuple(), epgsql_sock:pg_sock(), state()} | {finish, Result::any(), Notification::any(), epgsql_sock:pg_sock()} | {stop, Reason::any(), Response::any(), epgsql_sock:pg_sock()} | {requeue, epgsql_sock:pg_sock(), state()} | {sync_required, Why::any()} | unknown

state()

state() = any()

Function Index

Function Details

execute/3

handle_message/5

init/2

Overview

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