ExecutorService is a JDK API that simplifies running tasks in asynchronous mode. It provides a pool of threads and an API for assigning tasks to it. The executor framework is an implementation of the Producer-Consumer pattern. The java.util.concurrent.Executors class provides a set of methods for creating ThreadPools of worker threads. In this article, we will be looking at types of executors.
Types of executor
- Single thread Executor
The SingleThreadExecutor is a special type of executor that has only a single thread. It is used when we need to execute tasks in sequential order.
ExecutorService executor = Executors.newSingleThreadExecutor()
- Fixed thread pool
FixedThreadPool is another special type of executor that is a thread pool having a fixed number of threads. By this executor, the submitted task is executed by the n thread.
The tasks are then stored in LinkedBlockingQueue until previous tasks are not completed.
ExecutorService executor = Executors.newFixedThreadPool(4);
- Cached thread pool
The CachedThreadPool is a special type of thread pool that is used to execute short-lived parallel tasks. The cached thread pool doesn't have a fixed number of threads. When a new task comes at a time and all the threads are busy executing some other tasks, a new thread is created by the pool and added to the executor.
ExecutorService executor = Executors.newCachedThreadPool();
- Scheduled executor service
The ScheduledExecutorService interface runs tasks after some predefined delay and/or periodically.
ScheduledExecutorService scheduledExecService = Executors.newScheduledThreadPool(1);
The scheduleAtFixedRate and scheduleWithFixedDelay are the two methods that are used to schedule the task in ScheduledExecutor.
The scheduleAtFixedRate method executes the task with a fixed interval when the previous task ended.
The scheduleWithFixedDelay method starts the delay count after the current task is complete.
The main difference between these two methods is their interpretation of the delay between successive executions of a scheduled job.
scheduledExecService.scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit)
scheduledExecService.scheduleWithFixedDelay(Runnable command, long initialDelay, long period, TimeUnit unit)
The best use case for ExecutorService is the processing of independent tasks, such as transactions or requests according to the scheme “one thread for one task” in Oracle’s documentation, fork/join was designed to speed up work that can be broken into smaller pieces recursively.
That's all for today, Happy Coding!..
Top comments (5)
The Java Executor Framework is a powerful utility in Java’s concurrency package that simplifies executing tasks asynchronously, allowing developers to manage threads more efficiently without handling low-level thread management. It provides a standardized way to decouple task submission from execution, using classes like Executor, ExecutorService, and ScheduledExecutorService to manage task execution with thread pools, scheduled tasks, and more. This framework is highly scalable and ideal for optimizing performance in applications requiring multitasking. For instance, if you’re managing complex scripts or automation tasks, similar to how Fluxus Executor operates, visit here for more info on how tools like these streamline tasks and improve productivity through advanced execution handling.
Dramacool ek online streaming website hai jo Korean, Chinese, Japanese, aur other Asian dramas aur movies provide karti hai. Yeh website free content ke liye mashhoor hai aur users ko subtitles ke sath shows dekhne ki sahulat deti hai. Lekin, Dramacool aur is jaisi websites par content aksar copyright laws ki violation mein ho sakta hai.
Java Executor is part of the java.util.concurrent package, used for managing and executing threads. It simplifies asynchronous task execution, providing thread pool management and improving concurrency in applications."Semakan STR(semakanstr.my/str-login/)" refers to the process of checking or verifying tax records or documents in Malaysia. It helps individuals and businesses review their tax status and ensure compliance with tax regulations.
The Delta Executor APK is a cutting-edge tool that plays a crucial role in the realm of data processing, particularly within cloud environments. Its primary function is to streamline the execution of various data processing tasks, making it a vital asset for data engineers and analysts. Here’s a closer look at its features and benefits.
Performance Optimization
One of the standout features of the Delta Executor is its ability to optimize resource utilization. By intelligently managing workloads, it ensures that tasks are executed efficiently, reducing latency and improving overall performance. This is particularly important for organizations that deal with large volumes of data and require quick turnaround times.
The Java Executor Framework is a powerful utility in Java that simplifies the management of thread execution. It provides a higher-level API to handle concurrency, allowing developers to manage a pool of threads, schedule tasks, and control the execution of asynchronous tasks more efficiently. The framework consists of interfaces like Executor, ExecutorService, and classes such as ThreadPoolExecutor for managing task execution. The Delta Executor, although primarily used for Roblox scripting, shares a similar concept in managing multiple tasks effectively, ensuring smoother performance and optimization in both game environments and traditional software development.