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https://issues.apache.org/jira/browse/MYFACES-3441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13187319#comment-13187319
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Leonardo Uribe commented on MYFACES-3441:
-----------------------------------------
Attached alternate patch. The idea is create a class called SharedStringBuilder
with these methods:
public static StringBuilder get(FacesContext facesContext, String
stringBuilderKey)
public static StringBuilder get(FacesContext facesContext, String
stringBuilderKey, int initialSize)
public static StringBuilder get(String stringBuilderKey)
and provide a param that allows to provide a key. In this way, we can reuse the
same buffer, but do not mix it in different locations and cause problems that
later become very difficult to solve. The idea is use it per renderer or per
class.
Additionally, I propose some places where this technique becomes useful, like
in ajax renderer or link calculations. I don't think we should use this
everywhere, just in some selected locations and that's it. There is no
appreciable difference in code speed but the memory gets some benefit, because
less object instances means less gc.
> [perf] use shared StringBuilder instance
> ----------------------------------------
>
> Key: MYFACES-3441
> URL: https://issues.apache.org/jira/browse/MYFACES-3441
> Project: MyFaces Core
> Issue Type: Improvement
> Environment: myfaces core trunk
> Reporter: Martin Kočí
> Assignee: Martin Kočí
> Priority: Minor
> Attachments: MYFACES-3441-1.patch, RendererUtils.path
>
>
> method
> javax.faces.component.UIComponentBase._getSharedStringBuilder(FacesContext)
> already provide this. Add same method to public API and use request-shared
> StringBuilder instance in renderers too.
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