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https://issues.apache.org/jira/browse/CAY-1803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrus Adamchik updated CAY-1803:
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Summary: Optimize Expression conversion to String and EJBQL (was: Define
toString() in path expressions)
> Optimize Expression conversion to String and EJBQL
> --------------------------------------------------
>
> Key: CAY-1803
> URL: https://issues.apache.org/jira/browse/CAY-1803
> Project: Cayenne
> Issue Type: Improvement
> Reporter: Andrus Adamchik
> Assignee: Andrus Adamchik
> Priority: Trivial
> Fix For: 3.2M1
>
>
> Expression.toString() is pretty heavy:
> @Override
> public String toString() {
> StringWriter buffer = new StringWriter();
> PrintWriter pw = new PrintWriter(buffer);
> encodeAsString(pw);
> pw.close();
> buffer.flush();
> return buffer.toString();
> }
> We didn't bother much about it, as it wasn't supposed to be called in
> runtime... Well it is sometimes:
> SelectTranslator,java:
> 433 String labelPrefix = pathExp.toString().substring("db:".length());
> And I am seeing this line occasionally in my app profiling reports. So we
> need to override "toString" at least for ASTObjPath and ASTDbPath with a
> lighter implementation
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