Programmer Reference : Redis : Hiredis Platform Interface : EsHiredisCallEngine
EsHiredisCallEngine
Description
An abstract superclass that defines the strategy for executing Foreign Function Interface (FFI) calls into the native hiredis C library. This class provides a common interface for different calling mechanisms, such as synchronous (blocking) and asynchronous (non-blocking).
This abstraction allows the Redis client to seamlessly switch between execution strategies without changing the higher-level code. This class is not intended to be instantiated directly.
Class Variables
  • Default - <EsHiredisCallEngine> The default call engine to use
Class Methods
new 
  Answer a new instance of this call engine.
     
     Answers:
        <HiredisCallEngine>
Instance Methods
call: 
  Perform a 0-argument call.
     This is a template method that must be implemented by subclasses.
     
     Arguments:
        aPlatformFunction - <PlatformFunction> The function to execute.
     Answers:
        <Object> The result of the platform function call.
     Raises:
        <SubclassResponsibility>
call:with: 
  Perform a 1-argument call.
     This is a template method that must be implemented by subclasses.
     
     Arguments:
        aPlatformFunction - <PlatformFunction> The function to execute.
        arg1 - <Object> The argument for the function.
     Answers:
        <Object> The result of the platform function call.
     Raises:
        <SubclassResponsibility>
call:with:with: 
  Perform a 2-argument call.
     This is a template method that must be implemented by subclasses.
     
     Arguments:
        aPlatformFunction - <PlatformFunction> The function to execute.
        arg1 - <Object> The first argument for the function.
        arg2 - <Object> The second argument for the function.
     Answers:
        <Object> The result of the platform function call.
     Raises:
        <SubclassResponsibility>
call:with:with:with: 
  Perform a 3-argument call.
     This is a template method that must be implemented by subclasses.
     
     Arguments:
        aPlatformFunction - <PlatformFunction> The function to execute.
        arg1 - <Object> The first argument for the function.
        arg2 - <Object> The second argument for the function.
        arg3 - <Object> The third argument for the function.
     Answers:
        <Object> The result of the platform function call.
     Raises:
        <SubclassResponsibility>
call:with:with:with:with: 
  Perform a 4-argument call.
     This is a template method that must be implemented by subclasses.
     
     Arguments:
        aPlatformFunction - <PlatformFunction> The function to execute.
        arg1 - <Object> The first argument for the function.
        arg2 - <Object> The second argument for the function.
        arg3 - <Object> The third argument for the function.
        arg4 - <Object> The fourth argument for the function.
     Answers:
        <Object> The result of the platform function call.
     Raises:
        <SubclassResponsibility>
Last modified date: 01/22/2026