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From "Scott O'Bryan (JIRA)" <>
Subject [jira] [Updated] (TRINIDAD-1771) Proposed changes to Trinidad org.apache.myfaces.trinidad.render.ClientRowKeyManager class
Date Tue, 12 Apr 2011 18:40:05 GMT


Scott O'Bryan updated TRINIDAD-1771:

       Resolution: Fixed
    Fix Version/s: 2.0.0-alpha-2
         Assignee: Scott O'Bryan
           Status: Resolved  (was: Patch Available)

This issue is already comitted

> Proposed changes to Trinidad org.apache.myfaces.trinidad.render.ClientRowKeyManager class
> -----------------------------------------------------------------------------------------
>                 Key: TRINIDAD-1771
>                 URL:
>             Project: MyFaces Trinidad
>          Issue Type: Improvement
>          Components: Components
>    Affects Versions: 2.0.0-alpha
>         Environment: All
>            Reporter: Kamran Kashanian
>            Assignee: Scott O'Bryan
>             Fix For: 2.0.0-alpha-2
>         Attachments: ClientRowKeyMgr.patch
> Proposing the following changes related to Trinidad org.apache.myfaces.trinidad.render.ClientRowKeyManager
> 1)  Current implementation of ClientRowKeyManager provides read-only access to a component
server/client row key cache.    Proposal is to add an additional API to support the updating
of server-side row keys in the cache.  This is useful for use-cases where the model row key
may change and the cache needs to be updated with the changed row key.  The following API
is proposed:
>   /**
>    * Replaces an old row key with a new key if the old row key exists.  If the old row
key is successfully replaced,
>    * the new row key will be mapped to the existing client row key.
>    * @param context
>    * @param component
>    * @param oldRowKey row key to replace (may not exist)
>    * @param newRowKey new row key
>    * @return <code>true</code> if old row key existed and was replaced, <code>false</code>
>    */
>   public boolean replaceRowKey(FacesContext context, UIComponent component, Object oldRowKey,
Object newRowKey)
> 2) Trinidad UIXCollection currently implements a ClientRowKeyManager  called:  DefaultClientKeyManager.
  If the server-side row key in the CollectionModel is a Java String,  DefaultClientKeyManager
does not always translate the row key to a short client row key and sometime returns the server-side
row key for use on the client.  
> There are two problems with this:
> a)  It is a security issue as the model primary keys are directly exposed in the HTML
> b) The row key string is used as part of the clientId for the stamped child components
in the UIXCollection.  The server-side row key may not be suitable for use in a clientId string
(the string may contain reserved characters such as ':')
> The proposal is to change DefaultClientKeyManager to always translate the server-side
row key to a short client row key suitable for use inside JSF clientId(s)

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