Apex Developer Guide

Apex Developer Guide
Getting Started with Apex
Writing Apex
Data Types and Variables
Control Flow Statements
Classes, Objects, and Interfaces
Classes
Interfaces
Keywords
Annotations
AuraEnabled Annotation
Deprecated Annotation
Future Annotation
InvocableMethod Annotation
InvocableVariable Annotation
IsTest Annotation
ReadOnly Annotation
RemoteAction Annotation
SuppressWarnings Annotation
TestSetup Annotation
TestVisible Annotation
Apex REST Annotations
Classes and Casting
Differences Between Apex Classes and Java Classes
Class Definition Creation
Namespace Prefix
Apex Code Versions
Lists of Custom Types and Sorting
Using Custom Types in Map Keys and Sets
Working with Data in Apex
Running Apex
Debugging, Testing, and Deploying Apex
Apex Language Reference
Appendices
Glossary
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Annotations

An Apex annotation modifies the way that a method or class is used, similar to annotations in Java. Annotations are defined with an initial @ symbol, followed by the appropriate keyword.

To add an annotation to a method, specify it immediately before the method or class definition. For example:

1global class MyClass {
2     @future
3     Public static void myMethod(String a)
4     {
5          //long-running Apex code
6     }
7}
Apex supports the following annotations.