[jira] [Updated] (MYFACES-3572) [perf] remember initial state for properties changed in normal JSF lifecycle

["Leonardo Uribe (JIRA)" <de...@myfaces.apache.org>]

     [ https://issues.apache.org/jira/browse/MYFACES-3572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leonardo Uribe updated MYFACES-3572:
------------------------------------

    Status: Patch Available  (was: Open)
    
> [perf] remember initial state for properties changed in normal JSF lifecycle
> ----------------------------------------------------------------------------
>
>                 Key: MYFACES-3572
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3572
>             Project: MyFaces Core
>          Issue Type: Improvement
>          Components: JSR-314
>            Reporter: Leonardo Uribe
>            Assignee: Leonardo Uribe
>         Attachments: MYFACES-3572-1.patch
>
>
> There are 4 component properties that are very special in JSF:
> value
> localValueSet
> valid
> submittedValue
> These ones are used intensively over JSF lifecycle. By performance reasons, PSS algorithm does not save the initial state of a component and instead, just mark the properties that were changed from its initial state and save them in the delta state. This reduce the required memory for a component and also reduce the necessary calculations to derive the delta.
> But since these 4 properties are used intensively, it is worth to calculate the initial state and store it into the StateHelper. Later, we can use that information in StateHelper.saveState(), to remove from delta the values that are not necessary to save, because are the same ones from the initial state. We only need to add some lines into UIInput.markInitialState(), which is reasonable.
> The result of this change is an important reduction over state size generated by input components. If validation is successful, the input component will not generate state, and if the validation fails, only the components with some value to save will store something into the state.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira