| From: | Frederik Wiers <frederik(dot)wiers(at)gmail(dot)com> |
|---|---|
| To: | pgsql-jdbc(at)postgresql(dot)org |
| Subject: | StringBuffer vs. StringBuilder |
| Date: | 2014-01-20 00:37:51 |
| Message-ID: | CAP9CZQLD7JNWfGaUexXFEr_pi-Uiwz4srfBS=YkskU9CLGMw7g@mail.gmail.com |
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| Lists: | pgsql-jdbc |
Hello,
suggestion for a small performance improvement: replace StringBuffer with
StringBuilder when the StringBuffer is used as a local variable in a method.
I just browsed the git-repo (
https://github.com/pgjdbc/pgjdbc/tree/master/org/postgresql) looking for
prepared statement caching (which I could not find, but that is for another
day) and saw a lot of places where StringBuffer can be replaced by
StringBuilder.
The little performance test shown at
http://stackoverflow.com/a/2771852/3080094
indicates that if StringBuffer is used a lot, replacing it with
StringBuilder can make a difference. And I can not think of a reason to use
a StringBuffer if it is just used locally in a method to build a String.
Frederik
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