Cached report bursting

Security in a report is a kind of privileged control. JReport supports cached report bursting which creates a security mechanism for controlling access to the report. By defining which groups of data are available to which users, groups, or roles, report results are created for each user, role and group. When a user accesses the report result, JReport checks the user, group and role of the user and merges the groups of data in the report the user is authorized to see and displays it to the user. Cached report bursting is implemented with these security properties on the group panel: Cascade, Grant, Groups, and Roles. The feature enables different users to view different data groups according to their access privileges. It also applies to nested groups.

Cached report bursting operates 2 different ways depending on the output format selected and if the report is ran on-demand or scheduled.

Scheduled DHTML and HTML reports will create a report result with the report data for all possible users. This allows the report to run with a single query to the DBMS to create the report for all users in one pass. It is similar to report bursting, however, report bursting does not support DHTML and it makes a separate physical report result for each user and the administrator needs to manually restrict access to the results. When a user views the report result using cached report bursting, JReport Server will use the security identifier of the user to restrict access to the data in the report to the specific groups the security identifier is allowed to view. The end result is the same as the bursting report in that the user sees only his data, the advantage to the administrator is there is only one version result to manage.
On-Demand and schedule non-DHTML and non HTML reports build a separate data result for each request containing only the data the security identifier allows. In this way, it is similar to a report using Record-level Security; however, the setup mechanism is different.

For detailed descriptions about setting up cached report bursting in reports, see Setting up a cached report bursting policy for a report in the JReport Designer User's Guide.

This section focuses on how to view and schedule a report that has cached report bursting with JReport Server.