The _____ Pattern is a design pattern that separates method execution from method invocation, enabling asynchronous and concurrent processing while maintaining system responsiveness and scalability.
* Async Method Invocation
* Balking
* Active Object
* Double checked locking
#design #pattern #activeObject #software #programming
The Active Object Pattern is a design pattern in software development that decouples method execution from method invocation in order to achieve concurrency, parallelism, and responsiveness in a system.
It allows for the execution of methods asynchronously, making it particularly useful for building responsive and scalable applications.
1) Active Object:
The Active Object represents an object with an interface that clients use to request the execution of methods.
It maintains a queue of method requests and executes them sequentially in a separate thread of control.
2) Method Request:
A Method Request is a request to execute a specific method on the Active Object.
Clients create and submit method requests to the Active Object, which processes them asynchronously.
3) Scheduler:
The Scheduler is responsible for managing the execution of method requests in the Active Object.
It ensures that method requests are executed in a controlled and efficient manner.
4)Servant:
The Servant is the object that performs the actual work when a method request is executed.
It carries out the requested method on behalf of the Active Object.
The Active Object Pattern is valuable in scenarios where you need to achieve concurrency without exposing the complexities of multi-threading to clients.
It helps improve system responsiveness and scalability by allowing method invocations to be handled asynchronously.
This pattern is often used in applications with user interfaces, multimedia processing, and real-time systems.