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https://issues.apache.org/jira/browse/AVRO-143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765294#action_12765294
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Doug Cutting commented on AVRO-143:
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> Would be very interesting to see that backed up by numbers (i.e. a test) as 
> well. 

To see what backed up?  That reflection is 100x slower than normal Java code at 
setting fields?

> 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 Avro.
> 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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