[infinispan-issues] [JBoss JIRA] (ISPN-5003) Support putIfAbsent() semantics for FineGrainedAtomic map

[Gunnar Morling (JIRA)]

Gunnar Morling created ISPN-5003:
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             Summary: Support putIfAbsent() semantics for FineGrainedAtomic map
                 Key: ISPN-5003
                 URL: https://issues.jboss.org/browse/ISPN-5003
             Project: Infinispan
          Issue Type: Feature Request
            Reporter: Gunnar Morling


For Hibernate OGM we work with {{FineGrainedAtomicMap}} to represent entity tuples. Now we're looking for a way to insert such map into the cache only if it is not present under the given key yet (so we know after the invocation whether the insert has taken place or not).

{{Cache#putIfAbsent()}} seems promising for that, but this seems not usable with {{FineGrainedAtomicMap}} (As I seem not able to create the map myself in that case).



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