[jira] Commented: (AVRO-261) Allow Schemas to be immutable

["Philip Zeyliger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828198#action_12828198 ] 

Philip Zeyliger commented on AVRO-261:
--------------------------------------

I like having schemas immutable.  This patch looks like a good step in that direction.  setProp() is still problematic, however.  (It's also the reason that the primitive schemas aren't singletons: I think the reflect API annotates the primitive types with stuff.)  I also wish that we could just get rid of setFields() altogether, relying on the constructor.

> Allow Schemas to be immutable
> -----------------------------
>
>                 Key: AVRO-261
>                 URL: https://issues.apache.org/jira/browse/AVRO-261
>             Project: Avro
>          Issue Type: New Feature
>          Components: java
>            Reporter: Kevin Oliver
>            Assignee: Thiruvalluvan M. G.
>            Priority: Minor
>         Attachments: AVRO-261.patch
>
>
> It would be nice if there was the ability to have an immutable Schema in java. 
> Without this, it makes sharing schemas risky. Also, with this, we could (lazily) cache the hashCode which is a fairly expensive operation today, especially on something like a record.

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