[infinispan-issues] [JBoss JIRA] (ISPN-6935) Use Collection instead of Set

[Radim Vansa (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Radim Vansa updated ISPN-6935:
------------------------------
              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/4493


> Use Collection instead of Set
> -----------------------------
>
>                 Key: ISPN-6935
>                 URL: https://issues.jboss.org/browse/ISPN-6935
>             Project: Infinispan
>          Issue Type: Sub-task
>          Components: Core
>    Affects Versions: 9.0.0.Alpha4
>            Reporter: Radim Vansa
>            Assignee: Radim Vansa
>             Fix For: 9.0.0.Beta1
>
>
> Currently the xManyCommand commands hold the keys in a set internally. During marshalling and splitting the set (when the command goes remote), we use {{HashSet}}. However, this has drawbacks:
> a) if the set passed to command uses different means of equality than {{Object.hashCode()}} and {{Object.equals()}} we may lose some keys in the derived set - we don't inject dataContainer's keyEquivalence to the commands
> b) as these sets are usually just iterated through (contains() is rare) it's less effective to use complex data structures as {{HashSet}} - plain {{ArrayList}} is sufficient.



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