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Posted to issues@tiles.apache.org by "Xiaoming Shi (JIRA)" <ji...@apache.org> on 2011/02/24 03:18:38 UTC

[jira] Created: (TILES-521) JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance

JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance
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                 Key: TILES-521
                 URL: https://issues.apache.org/jira/browse/TILES-521
             Project: Tiles
          Issue Type: Bug
          Components: tiles-el
    Affects Versions: 2.2.2
            Reporter: Xiaoming Shi


In the file

tiles-2.2.2/src/tiles-el/src/main/java/org/apache/tiles/el/JspExpressionFactoryFactory.java      line:61

The value returned by JspFactory.getDefaultFactory() can be cached to reduce race and improve performance 
(Similar to the Apache Bug, https://issues.apache.org/bugzilla/show_bug.cgi?id=44408)

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[jira] Commented: (TILES-521) JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance

Posted by "Xiaoming Shi (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/TILES-521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12998898#comment-12998898 ] 

Xiaoming Shi commented on TILES-521:
------------------------------------

Hi Antonio,

Since JspExpressionFactoryFactory itself is a Factory, the best method may be caching the value of JspExpressionFactory where it is used. But it may affect many codes.

The other method is to add a field in the class JspExpressionFactoryFactory which can be used to store the return value of JspFactory.getDefaultFactory(). If a JspExpressionFactory object is only used for once, then this method may not improve any performance. 



> JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TILES-521
>                 URL: https://issues.apache.org/jira/browse/TILES-521
>             Project: Tiles
>          Issue Type: Bug
>          Components: tiles-el
>    Affects Versions: 2.2.2
>            Reporter: Xiaoming Shi
>
> In the file
> tiles-2.2.2/src/tiles-el/src/main/java/org/apache/tiles/el/JspExpressionFactoryFactory.java      line:61
> The value returned by JspFactory.getDefaultFactory() can be cached to reduce race and improve performance 
> (Similar to the Apache Bug, https://issues.apache.org/bugzilla/show_bug.cgi?id=44408)

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[jira] Updated: (TILES-521) JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance

Posted by "Antonio Petrelli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/TILES-521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antonio Petrelli updated TILES-521:
-----------------------------------

    Remaining Estimate: 0h
     Original Estimate: 0h

> JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TILES-521
>                 URL: https://issues.apache.org/jira/browse/TILES-521
>             Project: Tiles
>          Issue Type: Bug
>          Components: tiles-el
>    Affects Versions: 2.2.2
>            Reporter: Xiaoming Shi
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> In the file
> tiles-2.2.2/src/tiles-el/src/main/java/org/apache/tiles/el/JspExpressionFactoryFactory.java      line:61
> The value returned by JspFactory.getDefaultFactory() can be cached to reduce race and improve performance 
> (Similar to the Apache Bug, https://issues.apache.org/bugzilla/show_bug.cgi?id=44408)

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[jira] Commented: (TILES-521) JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance

Posted by "Antonio Petrelli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/TILES-521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12998757#comment-12998757 ] 

Antonio Petrelli commented on TILES-521:
----------------------------------------

I agree, but can you provide a patch? This way it will be fixed sooner.

> JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TILES-521
>                 URL: https://issues.apache.org/jira/browse/TILES-521
>             Project: Tiles
>          Issue Type: Bug
>          Components: tiles-el
>    Affects Versions: 2.2.2
>            Reporter: Xiaoming Shi
>
> In the file
> tiles-2.2.2/src/tiles-el/src/main/java/org/apache/tiles/el/JspExpressionFactoryFactory.java      line:61
> The value returned by JspFactory.getDefaultFactory() can be cached to reduce race and improve performance 
> (Similar to the Apache Bug, https://issues.apache.org/bugzilla/show_bug.cgi?id=44408)

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[jira] Closed: (TILES-521) JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance

Posted by "Antonio Petrelli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/TILES-521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antonio Petrelli closed TILES-521.
----------------------------------

    Resolution: Won't Fix

> JspFactory.getDefaultFactory() is synchronized, We can cache the return value to improve performance
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TILES-521
>                 URL: https://issues.apache.org/jira/browse/TILES-521
>             Project: Tiles
>          Issue Type: Bug
>          Components: tiles-el
>    Affects Versions: 2.2.2
>            Reporter: Xiaoming Shi
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> In the file
> tiles-2.2.2/src/tiles-el/src/main/java/org/apache/tiles/el/JspExpressionFactoryFactory.java      line:61
> The value returned by JspFactory.getDefaultFactory() can be cached to reduce race and improve performance 
> (Similar to the Apache Bug, https://issues.apache.org/bugzilla/show_bug.cgi?id=44408)

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