Reference to the actual object during extraction to the cache coherence in C++

Hello
Currently I use the copy constructor to get the real object reference. But because of that when whenever for some call wire get object creates a new object in the heap. Because I have a few times I keep this object in the local cache. Is there a way that we can avoid creating new objects in the heap.

void * get_for_read_write_lock (const char * key) {}
String::view objectKey = key;
lock_locally (objectKey, "get");
Managed < cache_obj >: view obj = cast < < cache_obj > Managed: View > (hCache-> get (objectKey));
If (obj == NULL) {}
COH_LOG2 ("get object NULL with key lock:", objectKey);
unlock_locally (objectKey, "get");
return null;
}
cache_obj valueOb = new cache_obj(*obj); *
unlock_locally (objectKey, "get");
valueOb-> set_cache (Thi, key);
Return valueOb;
}

Kind regards
Sura

Hi Sura,

Can you please specify if you want a mutable or immutable object. As you can with a thread earlier, out-of-process consistency puts cached objects return mutable objects immutable return hide in the process. The in-process caches back those unchangeable to prevent changing the return value to appear as if they were made in the cache.

The boxing_map will return mutable objects, although they use your copy constructor to produce so there is really no performance advantage to use it. A final version is returned it is only because force us the call to the constructor of copy of you restore an unmanaged version.

Mark

The Oracle coherence

Tags: Fusion Middleware

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