[ http://issues.apache.org/jira/browse/COCOON-371?page=all ] Helma van der Linden reopened COCOON-371: -----------------------------------------
reopened just to set the resolution to fixed > [PATCH] Replacement for AvalonToCocoonSource > -------------------------------------------- > > Key: COCOON-371 > URL: http://issues.apache.org/jira/browse/COCOON-371 > Project: Cocoon > Type: Improvement > Components: * Cocoon Core > Versions: 2.1.8-dev (Current SVN) > Environment: Operating System: other > Platform: Other > Reporter: Jens Lorenz > Assignee: Cocoon Developers Team > Priority: Minor > Attachments: AbstractEnvironment.java, > AvalonToCocoonSourceInvocationHandler.java > > The Source resolving invented for Cocoon was donated to Avalon-Excalibur. In > order to maintain compatibility wrappers have been written. However this > wrapping must fail as soon as there are some special Source Implementations > which contain extended functionality. > For example think of an ExtendedSource which might be used by FileGenerator > for > ordinary generation, but might also be used by ExtendedFileGenerator for > extended generation. Obviously ExtendedFileGenerator has to check if the > Source > is actually an ExtendedSource and then call extended methods on it. > The current AvalonToCocoonSource and CocoonToAvalonSource wrappers break this > approach by not wrapping around the CocoonSource and then not allowing to > access to wrapped source. > A nice way to accomplish the same is by creating dynamic proxies (which are > available from JDK 1.3 onwards). This class can implement any interface and > then route the method call to another class. It can also be assigned to any > interface it implements. > The attachements contain a patched AbstractEnvironment (since it's there > where > the CocoonSources are wrapped) and an AvalonToCocoonSourceInvocationHandler > which is needed for creating the proxy class and contains essentially the > same > logic as AvalonToCocoonSource. > It shouldn't be hard to create a CocoonToAvalonSourceInvocationHandler on > this > basis for the other way around. > The credits for creating this go to Stefan Köhler. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
