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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-1497) Add LogicalType support to Java
Date Tue, 19 May 2015 15:52:01 GMT

    [ https://issues.apache.org/jira/browse/AVRO-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550653#comment-14550653
] 

Tom White commented on AVRO-1497:
---------------------------------

Thanks for the update Ryan. I think this is getting close now.

> I also started interning persistent strings in the Schema that are used in comparisons
a lot, like record names, field names, enum symbols, and properties.

Let's move that into a separate JIRA. Interning is not recommended on Java 6 since it pollutes
permgen, and in Java 7 it may need tuning (http://java-performance.info/string-intern-in-java-6-7-8/),
so we should be cautious about when we do it, and then only for demonstrable gain.

> Add LogicalType support to Java
> -------------------------------
>
>                 Key: AVRO-1497
>                 URL: https://issues.apache.org/jira/browse/AVRO-1497
>             Project: Avro
>          Issue Type: New Feature
>          Components: java
>            Reporter: Ryan Blue
>            Assignee: Zoltan Farkas
>             Fix For: 1.7.8
>
>         Attachments: Logical Types Performance Comparison - Sheet1.csv
>
>
> AVRO-1402 updates the Avro spec to include logical types, which are stored as existing
types but interpreted as others. The next step is to implement LogicalType (in Java) that
provides tools to attach a logical type to a schema, read a logical type, and validate logical
types.



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