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https://issues.apache.org/jira/browse/TRINIDAD-1923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12914297#action_12914297
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Pavitra Subramaniam edited comment on TRINIDAD-1923 at 9/23/10 8:46 PM:
------------------------------------------------------------------------

Uploaded a patch file with the fix for this issue on trunk. The patch was 
worked on together by Josu (see base issue 1844) and Pavitra. 

      was (Author: pasubra):
    Uploaded a patch file with the fix for this issue on trunk. The patch was 
worked on together by Jose (see base issue 1844) and Pavitra. 
  
> CLONE -Issue in 
> org.apache.myfaces.trinidad.model.ProccessUtils.getMaxVisitedRowKey
> -----------------------------------------------------------------------------------
>
>                 Key: TRINIDAD-1923
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-1923
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>    Affects Versions: 2.0.0.3-core
>         Environment: Mac OSX 10.5 with JVM 1.6.0_20.
> Running using ADF with JDeveloper 11.1.1.3.0
>            Reporter: Pavitra Subramaniam
>            Priority: Minor
>         Attachments: ProcessUtils.java
>
>
> (Created this issue for fixing on trinidad trunk)
> I have been running the following example: 
> http://adf-samples.googlecode.com/files/SampleTrainModelWithCustomAction.zip
> I just changed the view.train.TrainIdMenuModel class constructor to:
>     public TrainIdMenuModel() {
>         super();
>         super.setMaxPathKey("MyMaxPathKey");
>     }
> This is done to get a max visited node behavior.  However when I click on the 
> button 'Next' to navigate on the tree the nodes are not enabled as expected 
> and the user has to click on 'Back' and then 'Next' twice to get the nodes 
> enabled correctly.
> The example can be found in this blog entry: 
> http://jobinesh.blogspot.com/2010/04/custom-model.html  which is based on the 
> ADF rich client demo 
> (http://www.oracle.com/technology/products/adf/adffaces/11/doc/demo/adf_faces_rc_demo.html).
>   The rich client demo can also be used to reproduce the issue.
> I accept that using a case test that relies in a whole framework like ADF is 
> not ideal, but looking at the code of 
> org.apache.myfaces.trinidad.model.ProcessUtils I think that the problem lies 
> there.  In the javadoc it is stated: "If set but the focus rowKey is after 
> maxVisitedRowKey, set maxVisitedRowKey to the focus rowKey."
> However if we look at the code, we can see that this is not respected since 
> the maxPath variable is 'cached' at the request map.
> If we assume that a MenuModel is going to be updated during the processing of 
> a request  BUT that the ProccessUtils.getMaxVisitedRowKey is invoked BEFORE 
> the model is actually updated, the maxPath value will be calculated (and 
> cached) using the non updated model.  In particular the maxPath will be 
> calculated incorrectly if the focusRowKey of the model is NOT updated before 
> the first call to ProccessUtils.getMaxVisitedRowKey occurs during the 
> request.  After this, if the focusRowKey is updated in the model and 
> ProccessUtils.getMaxVisitedRowKey is called (always being in the context of 
> the same request), the contract will not be respected and the cached maxPath 
> value will be returned (which can correspond to a node BEFORE the current 
> focus node, which is wrong).

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