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javaweb-applicationsdata-sharing

Right way to share object between different users of web application

I need to maintain a list of objects in a web application. This list can be viewed or modified (items added or deleted) by any user of the web application. There are chances that many users are accessing (modifying) the list almost at the same time. Which is the right approach to share the list. I can think of 2 ways.

  1. Static variable
  2. ServletContext

Please let me know which one is right and why. Also, please let me know if there is any other better way.

EDIT Issue is sharing objects between different users of application.

Solution

  • You can use database, custom datasource (simple list wrapped by DataSource interface) and many more, but...

    any instance of the web application

    should it be any user of webapp, right?