[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-2704) Performance during iteration (datatable, repeat) in the UI with value bindings that run through interceptors

Tue Mar 4 14:06:06 EST 2008

Performance during iteration (datatable, repeat) in the UI with value bindings that run through interceptors
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                 Key: JBSEAM-2704
                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2704
             Project: JBoss Seam
          Issue Type: Bug
          Components: Performance and Scalability
    Affects Versions: 2.0.1.GA, 2.0.0.GA
         Environment: Seam 2.0.0, 2.0.1
            Reporter: Siarhei Dudzin

"Since we don't cache this, a particular backing bean might be called hundreds or thousands of times during rendering of a datatable, if a value binding has to be evaluated for each row. If the backing bean is a Seam component, injection of dependencies will occur for every call, involving potentially thousands of map lookups."

There is a discussion thread with a bit more data: http://www.seamframework.org/Community/SeamPerformanceOptimization

The issue is also recognized at the seamframework.org site itself: http://www.seamframework.org/Documentation/TuningTheSeamWebsite#H-IterationDatatableRepeatInTheUIWithValueBindingsThatRunThroughInterceptors

Since the issue it known, this JIRA report is created for better traceability.

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