java - How to create a MAP that has an application scope? And Where to declare it? -

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i need create map has application scope. , so, if user1 add map object using method1 of class1, user2 find new objects using method2 of class2.

i know there annotation :

@applicationscoped

but, don't know map should declared or used, make have same state @ anytime , anywhere in application deployment time.

an example representing class map declared , method of class using it, helpful.

declare cdi bean provide map consumption:

@named @applicationscoped public class applicationscopedbean {     private map<keyclass, valueclass> map;     @postconstruct     public void init() {         //initialize map , data here         map = new concurrenthashmap<>();         map.put(..., ...);         //...     }     //provide getter map     public map<keyclass, valueclass> getmap() {         return this.map;     } }

now, bean can injected in clients , can show data in view.


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