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https://issues.apache.org/jira/browse/CAY-1673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221654#comment-13221654
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Andrus Adamchik commented on CAY-1673:
--------------------------------------
I think what we can do on the Cayenne end is to skip instantiation of a
CayenneRuntime inside ROPHessianServlet and CayenneFilter if either of them
detects that CayenneRuntime is already present in the context. This way a user
might create their own startup mechanism (another filter, or a
ServletContextListener) where he loads all the modules the application is
interested in... This will be the most efficient way to handle that.
> Running ROP and CayenneFilter on same project
> ---------------------------------------------
>
> Key: CAY-1673
> URL: https://issues.apache.org/jira/browse/CAY-1673
> Project: Cayenne
> Issue Type: Bug
> Components: ROP
> Affects Versions: 3.1M3
> Environment: Tomcat 7.0.14
> Reporter: Jozef Dropčo
> Original Estimate: 20m
> Remaining Estimate: 20m
>
> mapping for CayenneFilter is "/*" and I have ROPHessianServlet mounted on
> "/hessian". The problem is when I start the project webpages run perfectly,
> but after first call on ROPHessianServlet, I've got this error:
> org.apache.cayenne.ConfigurationException: [v.3.1M3 Sep 12 2011 19:59:45] DI
> container has no binding for key <BindingKey:
> org.apache.cayenne.configuration.web.RequestHandler>
> at
> org.apache.cayenne.di.spi.DefaultInjector.getProvider(DefaultInjector.java:123)
> at
> org.apache.cayenne.di.spi.DefaultInjector.getProvider(DefaultInjector.java:111)
> at
> org.apache.cayenne.di.spi.DefaultInjector.getInstance(DefaultInjector.java:103)
> at
> org.apache.cayenne.configuration.web.CayenneFilter.doFilter(CayenneFilter.java:92)
> I find out that this error is caused because in init method of
> ROPHessianServlet is no merging between existing ServerContext and new
> ServerContext created by servlet.
> I also fixed this bug by modifing the code like this:
> ....
> CayenneRuntime currentRuntime =
> WebUtil.getCayenneRuntime(servletContext);
> ArrayList<Module> modules = new ArrayList<Module>();
> if (currentRuntime != null) {
> modules.addAll(Arrays.asList(currentRuntime.getModules()));
> }
> modules.add(new ROPServerModule(
> eventBridgeParameters));
> ServerRuntime runtime = new ServerRuntime(configurationLocation,
> modules.toArray(new Module[modules.size()]));
> ....
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