avro-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Martin Traverso (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-143) use ASM to accellerate reflection
Date Wed, 14 Oct 2009 04:46:31 GMT

    [ https://issues.apache.org/jira/browse/AVRO-143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765391#action_12765391
] 

Martin Traverso commented on AVRO-143:
--------------------------------------

I did something similar a while ago for Thrift: http://github.com/martint/swift

Essentially, it takes a schema and a class representing a java bean or a Map and it generates
a class dynamically that knows how to call the right methods as it reads and writes raw fields
from the underlying transport.

I wouldn't expect porting it to work with Avro to be too complicated, and I've been thinking
about doing it at some point.


> 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.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message