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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-143) use ASM to accellerate reflection
Date Tue, 13 Oct 2009 21:31:31 GMT

    [ https://issues.apache.org/jira/browse/AVRO-143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765244#action_12765244

Doug Cutting commented on AVRO-143:

Note that reflection already uses ASM to post-process bytecode via paranamer to extract method
parameter names.

> use ASM to accellerate reflection
> ---------------------------------
>                 Key: AVRO-143
>                 URL: https://issues.apache.org/jira/browse/AVRO-143
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>            Reporter: Doug Cutting
> Java reflection is very slow, about 100 times slower for field access than normal Java
code.  However reflection might be a useful tool for converting existing codebases to use
> One could, using ASM (http://asm.ow2.org/) make existing compiled classes to implement
the SpecificRecord interface or something similar:
> http://hadoop.apache.org/avro/docs/current/api/java/org/apache/avro/specific/SpecificRecord.html
> This would make existing classes as fast to serialize as generated classes.

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