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Posted to commits@river.apache.org by "James Grahn (JIRA)" <ji...@apache.org> on 2010/12/29 08:25:45 UTC
[jira] Updated: (RIVER-384) Generic method usage in Spaces API
[ https://issues.apache.org/jira/browse/RIVER-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Grahn updated RIVER-384:
------------------------------
Attachment: javaspace-generics-patch.txt
First draft of a patch to utilize generics in the Javaspace API.
Previously, it was suggested that a change like this may occur in a different service, rather than the Javaspace API, so this patch should be considered only proof-of-concept.
Future revisions might be forthcoming as discussion or testing reveals a need.
> Generic method usage in Spaces API
> ----------------------------------
>
> Key: RIVER-384
> URL: https://issues.apache.org/jira/browse/RIVER-384
> Project: River
> Issue Type: Improvement
> Components: com_sun_jini_outrigger, net_jini_space
> Reporter: James Grahn
> Priority: Minor
> Attachments: javaspace-generics-patch.txt
>
>
> Use generics in the method signatures to minimize casting, in this manner:
> public <T extends Entry> T read(T template, Transaction txn, long timeout)
> (Similar transforms could be made to the majority of the methods within Javaspace.)
> The generic is defined at the method-level, enforcing that the type returned is the type of the template (and that template extends Entry).
> This is precisely the current contractual obligation of the method.
> This would have the following benefits:
> 1) Users no longer have to cast everything they receive from a read or take method.
> 2) The compiler can enforce part of the contract that was previously only covered by documentation.
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Re: [jira] Updated: (RIVER-384) Generic method usage in Spaces API
Posted by jg...@simulexinc.com.
Quite on the ball, Sim.
I anticipate Wade will submit a patch as well, and we'll then create a best-of-breed.
jamesG
-----Original Message-----
From: "Sim IJskes - QCG" <si...@qcg.nl>
Sent: Wednesday, December 29, 2010 6:26am
To: river-dev@incubator.apache.org
Subject: Re: [jira] Updated: (RIVER-384) Generic method usage in Spaces API
On 29-12-10 08:25, James Grahn (JIRA) wrote:
>
> [ https://issues.apache.org/jira/browse/RIVER-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> James Grahn updated RIVER-384:
> ------------------------------
>
> Attachment: javaspace-generics-patch.txt
Created skunk/generics. Applied patch. Created job
River-verify-generics, derived from River-verify.
Gr. Sim
Re: [jira] Updated: (RIVER-384) Generic method usage in Spaces API
Posted by Sim IJskes - QCG <si...@qcg.nl>.
On 29-12-10 08:25, James Grahn (JIRA) wrote:
>
> [ https://issues.apache.org/jira/browse/RIVER-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> James Grahn updated RIVER-384:
> ------------------------------
>
> Attachment: javaspace-generics-patch.txt
Created skunk/generics. Applied patch. Created job
River-verify-generics, derived from River-verify.
Gr. Sim