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Date: Thu, 31 Aug 2006 23:14:28 -0700 (PDT)
From: "Paulex Yang (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Assigned: (HARMONY-1359) [classlib][sql] Improve the
 performance of java.sql.Date.valueOf(String ) method
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     [ http://issues.apache.org/jira/browse/HARMONY-1359?page=all ]

Paulex Yang reassigned HARMONY-1359:
------------------------------------

    Assignee: Paulex Yang

> [classlib][sql] Improve the performance of java.sql.Date.valueOf(String ) method
> --------------------------------------------------------------------------------
>
>                 Key: HARMONY-1359
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1359
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Richard Liang
>         Assigned To: Paulex Yang
>            Priority: Minor
>         Attachments: Harmony-1359.diff
>
>
> Hello,
> In this method, we first try to separate the string into three parts and validate each part of the string,then pass the validated whole string to a SimpleDateFormat object which do the real parsing job.It seems likely that the validating work and the parsing work are duplicate. And each time to invoke the java.sql.Date.valueOf() method, we need to get a new instance of SimpleDateFormat,this is inefficient because constructing a new SimpleDateFormat is costly.
> Best regards,
> Richard

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