[infinispan-issues] [JBoss JIRA] (ISPN-3695) Atomic Object Factory

[Pierre Sutra (JIRA)]

Pierre Sutra created ISPN-3695:
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             Summary: Atomic Object Factory
                 Key: ISPN-3695
                 URL: https://issues.jboss.org/browse/ISPN-3695
             Project: Infinispan
          Issue Type: Feature Request
          Components: Core API
    Affects Versions: 6.0.0.Final
            Reporter: Pierre Sutra
            Assignee: Mircea Markus
            Priority: Optional


This feature implements a factory of atomic objects. The factory is universal in the sense that it can instanciate an object of any class. Below, we illusrate the usage of such a factory.

AtomicObjectFactory factory = new AtomicObjectFactory(c1); // c1 is both synchronous and transactional
Set set = (Set) factory.getOrCreateInstanceOf(HashSet.class, "k"); // k is the key to store set inside c1
set.add("smthing"); // some call examples
System.out.println(set.toString())
set.addAll(set);
factory.disposeInstanceOf(HashSet.class, "set", true); // to store in a persistent way the object

The implementation requires that all the arguments of the methods of the object are Serializable, as well as the object itself.  The factory  is built on top of the transactional facility of Infinispan. When an object is created, it stores both a local copy and a proxy registered as a cache listener. Then, it serializes every call in a transaction consisting of a single put operation. When the call is de-serialized its applied to the local copy and, in case the calling process was local, the return value is returned (this mechanism is implemented via a future object).


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