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From "John Huss (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CAY-1604) Android support for ROP apps
Date Fri, 02 Sep 2011 03:58:09 GMT

     [ https://issues.apache.org/jira/browse/CAY-1604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Huss updated CAY-1604:
---------------------------

    Attachment: android java beans.patch

> Android support for ROP apps
> ----------------------------
>
>                 Key: CAY-1604
>                 URL: https://issues.apache.org/jira/browse/CAY-1604
>             Project: Cayenne
>          Issue Type: Improvement
>          Components: ROP
>    Affects Versions: 3.1M2
>         Environment: Tested Android 2.3, Cayenne 3.1
>            Reporter: John Huss
>            Priority: Minor
>              Labels: patch
>         Attachments: android java beans.patch, cayenne-android-support.patch, tutorial-rop-android.zip
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> I tried out Cayenne ROP on Android and this is what I found: it doesn't work out of the
box, but it can be made to work with a bit of effort.
> The Hessian library refers to a few classes that are not present in Android:
> java.rmi.Remote
> java.rmi.RemoteException
> Cayenne itself refers to a few other classes missing in Android:
> java.beans.PropertyDescriptor
> java.beans.IntrospectionException
> So references to these need to be dealt with.  Here is what I did:
> 1) Use the existing open source"hessdroid" library instead of the regular hessian library
> 2) Remove reference to java.rmi.Remote from org.apache.cayenne.remote.RemoteService
> 3) Change RemoteException to IOException in org.apache.cayenne.remote.RemoteService
> 4) Use the java.beans code from Apache Harmony repackaged as com.googlecode.openbeans.
I created the "openbeans" project on Google Code to host this code.
> Only the cayenne-client library needs to be changed in this way.  The server can stay
the same, but it needs to have access to the openbeans library so that those classes are defined.
> With these changes I was able to run the ROP client tutorial code in an Android app.
 I've attached the patch so you can see exactly what was needed.  I don't know what the proper
course of action would be to integrate something like this; presumably these aren't the kind
of changes you would want to make to the core library, just to an android-only version.  So
maybe you have an idea.
> I've attached the patch and the example project.

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