Java synchronisation with infinispan

Question

I need to display number of users currently logged in to an application.. I am using one cache to store the current number of user. And i am doing this operations, When the user logged to an application i am fetching the number of users from the cache and incrementing the value by 1 since one more user has logged in. But i am facing problem when multiple users logged at the same time.. Can any plz help me resolve this issue?

I need to display number of users currently logged in to an application..

I am using one cache to store the current number of user.

And i am doing this operations,

When the user logged to an application i am fetching the number of users from the cache and incrementing the value by 1 since one more user has logged in.

But i am facing problem when multiple users logged at the same time..

Can any plz help me resolve this issue?

Please provide enough code so others can better understand or reproduce the problem. — Community, Nov 18 '22 at 08:56

score 0 · Answer 1 · answered Nov 18 '22 at 15:24

There are several ways to implement this:

using counters https://infinispan.org/docs/stable/titles/hotrod_java/hotrod_java.html#remotecache_countermanager-hotrod-client-api
using transactions https://infinispan.org/docs/stable/titles/hotrod_java/hotrod_java.html#hotrod_transactions
using versioned operations

Java synchronisation with infinispan

1 Answers1