Shulou(Shulou.com)06/01 Report--

This article will explain in detail about the use of AtomicReference and AtomicIntegerFieldUpdater, etc., the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The function of the AtomicReference class is to update the reference type atomically. Let's take a look at specific examples.

Let's take a look at the use of the AtomicReferenceFieldUpdater class, sometimes we don't want to update all the properties of the object, we just want to update a field, and we know that the return type of the field may also be uncertain, so the Java concurrent toolkit provides us with a lot of field update types. Such as AtomicIntegerFieldUpdater class and AtomicLongFieldUpdater class, the former is to update the field of Integer type, and the latter is to update the field of Long type. In addition, we know that the type of a field may also be a reference type, so we can update a field of a reference type with the AtomicReferenceFieldUpdater class, and the classes of these updated fields are used in almost the same way, so the following only demonstrates the use of the AtomicReferenceFieldUpdater class, and uses the String type to demonstrate.

Here are two points to pay attention to:

The updated instance variable must be a volatile variable, otherwise an exception will occur during the update.

The updated instance variable must be a public variable, otherwise an exception will occur during the update.

Let's take a look at the use of the AtomicIntegerFieldUpdater class, which is a little simpler than the AtomicReferenceFieldUpdater class.

About the use of AtomicReference and AtomicIntegerFieldUpdater and other classes is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.