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From "Alexander Klimetschek (JIRA)" <j...@apache.org>
Subject [jira] Created: (COCOON-2078) Profiling pipelines must not implement Configurable interface as they are already Parameterizable
Date Thu, 21 Jun 2007 14:51:25 GMT
Profiling pipelines must not implement Configurable interface as they are already Parameterizable
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                 Key: COCOON-2078
                 URL: https://issues.apache.org/jira/browse/COCOON-2078
             Project: Cocoon
          Issue Type: Bug
          Components: Blocks: Profiler
    Affects Versions: 2.2-dev (Current SVN)
            Reporter: Alexander Klimetschek
            Priority: Critical
             Fix For: 2.2-dev (Current SVN)


The most-recent change to both Profiling pipelines (revision 503964 in February 07) added
the configuration "sax-stream" option and this was done by additionally implementing the Configurable
interface. But as in BaseCachingProcessingPipeline (a base class) the interface Parameterizable
is already implemented, and an Avalon component can be either one or the other [1], this is
a bug. It's critical since the cache is retrieved in BaseCachingProcessingPipeline.parameterize(),
but as Configurable has precedence over Parameterizable [2], the cache will be null and a
NPE will be thrown during generation phase.

[1] http://excalibur.apache.org/apidocs/org/apache/avalon/framework/parameters/Parameterizable.html
[2] http://svn.apache.org/viewvc/cocoon/trunk/core/cocoon-sitemap/cocoon-sitemap-impl/src/main/java/org/apache/cocoon/core/container/spring/avalon/AvalonBeanPostProcessor.java?view=markup,
see method postProcessBeforeInitialization()

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