Sergey Uttsel created IGNITE-20599:
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Summary: Implement a 'not' operation in the meta storage dsl.
Key: IGNITE-20599
URL: https://issues.apache.org/jira/browse/IGNITE-20599
Project: Ignite
Issue Type: Improvement
Reporter: Sergey Uttsel
*Motivation*
In https://issues.apache.org/jira/browse/IGNITE-20561 we need to create a
condition for a ms invoke with negation. We could do this two ways:
{code:java}
and(
notExists(dataNodes(zoneId)),
notTombstone(dataNodes(zoneId))
){code}
or
{code:java}
not(
or(
exists(dataNodes(zoneId)),
tombstone(dataNodes(zoneId))
)
){code}
But there are no `notTombstone` or `not` methods in the meta storage dsl.
I propose to implement `not` operation because it is more general approach and
it can be reused with other conditions.
*Definition of done*
`not` operation is implemented.
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