Java Executor Function Explained
The Executor interface, which is part of the java.util.concurrent package, is used to perform tasks in a multi-threaded environment. It separates the submission and execution of tasks by submitting tasks to the Executor, which is responsible for managing the thread pool and scheduling task execution.
The role of an executor includes:
- Manage thread pool: The Executor is responsible for creating, managing, and maintaining the thread pool. When a task needs to be executed, it retrieves an idle thread from the pool to avoid the overhead of frequent thread creation and destruction.
- Executor offers various execution strategies for controlling task execution, such as executing tasks sequentially, in parallel, etc., allowing users to choose the appropriate strategy based on their specific needs.
- Centralized management of task execution: Using Executor, tasks can be abstracted into a unified interface, allowing developers to focus on task implementation without worrying about execution details.
- Improving performance and scalability of the application: By utilizing Executor, the system resources can be optimized more efficiently, enhancing the performance and scalability of the application.
