[jira] [Resolved] (GEODE-9446) Remove unnecessary uses of byte[] in RedisSortedSet

["Hale Bales (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GEODE-9446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hale Bales resolved GEODE-9446.
-------------------------------
    Fix Version/s: 1.15.0
       Resolution: Fixed

> Remove unnecessary uses of byte[] in RedisSortedSet
> ---------------------------------------------------
>
>                 Key: GEODE-9446
>                 URL: https://issues.apache.org/jira/browse/GEODE-9446
>             Project: Geode
>          Issue Type: Improvement
>          Components: redis
>    Affects Versions: 1.15.0
>            Reporter: Donal Evans
>            Assignee: Hale Bales
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.15.0
>
>
> The current implementation of {{RedisSortedSet}} uses an {{AbstractOrderedStatisticsEntry}} class containing both {{double}} score and {{byte[]}} scoreBytes fields. The {{double}} field is required to allow the sorting behaviour required of the data structure, but the {{byte[]}} field is not necessary except when returning results to the client.
> The class should be refactored to eliminate the {{byte[]}} scoreBytes field from {{AbstractOrderedStatisticsEntry}} and reduce the memory overhead of operations.
> As part of this refactoring, the below call to {{members.put()}} should be removed from {{memberAdd()}} as it will no longer be necessary.
> {code:java}
> protected synchronized byte[] memberAdd(byte[] memberToAdd, byte[] scoreToAdd) {
> ...
> } else {
>   scoreSet.remove(existingEntry);
>   byte[] oldScore = existingEntry.scoreBytes;
>   existingEntry.updateScore(stripTrailingZeroFromDouble(scoreToAdd));
>   members.put(memberToAdd, existingEntry); <<< remove this
>   scoreSet.add(existingEntry);
>   return oldScore;
> }
> {code}
> Also, uses of the {{stripTrailingZeroFromDouble()}} method should be moved to just prior to the response being returned to the client, to ensure that the format of the returned String representations of double values match native Redis.



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