How to create a single annotation take multiple values ​​in Java

Question

I have an annotation called

@Retention( RetentionPolicy.SOURCE ) @Target( ElementType.METHOD ) public @interface JIRA { /** * The 'Key' (Bug number / JIRA reference) attribute of the JIRA issue. */ String key(); } 

which allows you to add annotations like this

 @JIRA( key = "JIRA1" ) 

is there any way for this to happen

 @JIRA( key = "JIRA1", "JIRA2", ..... ) 

the reason is that we are currently annotating the test against Jira’s task or fixing bugs, but sometimes, the value will be processed by the sonar. The problem is one test covering more than 1 error.

Answer 1

Modify the key() function to return String[] , not String , then you can pass different values ​​with String[]

 public @interface JIRA { /** * The 'Key' (Bug number / JIRA reference) attribute of the JIRA issue. */ String[] key(); } 

Use it as below

 @JIRA(key = {"JIRA1", "JIRA2"})