[classlib][sql] Improve the performance of java.sql.Time.valueOf(String ) method
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Key: HARMONY-1358
URL: http://issues.apache.org/jira/browse/HARMONY-1358
Project: Harmony
Issue Type: Improvement
Components: Classlib
Reporter: Richard Liang
Priority: Minor
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.Time.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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