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