[jira] [Assigned] (IGNITE-4558) Use BinaryArrayIdentityResolver by default

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-4558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov reassigned IGNITE-4558:
---------------------------------------

    Assignee: Vladimir Ozerov  (was: Evgenii Zhuravlev)

> Use BinaryArrayIdentityResolver by default
> ------------------------------------------
>
>                 Key: IGNITE-4558
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4558
>             Project: Ignite
>          Issue Type: Improvement
>          Components: binary
>            Reporter: Pavel Tupitsyn
>            Assignee: Vladimir Ozerov
>            Priority: Critical
>             Fix For: 2.0
>
>
> Currently if there is no configured {{BinaryTypeConfiguration.IdentityResolver}}, we call Object.hashCode().
> This is not consistent with DML, and there is a warning:
> {code}
> Binary object's type does not have identity resolver explicitly set, therefore BinaryArrayIdentityResolver is used to generate hash codes for its instances, and therefore hash code of this binary object will most likely not match that of its non serialized form. For finer control over identity of this type, please update your BinaryConfiguration accordingly.
> {code}
> In 2.0 we should use {{BinaryArrayIdentityResolver}} by default.
> 2.0 migration guide has to be updated if needed: https://cwiki.apache.org/confluence/display/IGNITE/Apache+Ignite+2.0+Migration+Guide



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