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https://issues.apache.org/jira/browse/IGNITE-16115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Mashenkov updated IGNITE-16115:
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Labels: ignite-3 (was: )
> Implement getNullable and getOrDefault operations.
> --------------------------------------------------
>
> Key: IGNITE-16115
> URL: https://issues.apache.org/jira/browse/IGNITE-16115
> Project: Ignite
> Issue Type: Improvement
> Reporter: Andrey Mashenkov
> Priority: Major
> Labels: ignite-3
>
> It is allowed to map an object to a single nullable column, which makes
> 'null' values legal in the KeyValue view.
> Once the 'null' value is possible there is no way to distinguish, if there is
> no row in a table for the given key, or the row exists and the mapped column
> contains the 'null' value.
> Let's introduce NullableValue class-wrapper for a value and implement
> getNullable, and getOrDefault methods for that purpose.
> The first is useful for cases, when it's not possible to use a "default", but
> creates an additional wrapper.
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