[infinispan-issues] [JBoss JIRA] Resolved: (ISPN-881) A listener which receives CacheEntryCreatedEvent + CacheEntryModifiedEvent events always has a null value after a Cache.put while a Cache.put which replaces delivers the actual value.

A listener which receives CacheEntryCreatedEvent + CacheEntryModifiedEvent events always has a null value after a Cache.put while a Cache.put which replaces delivers the actual value. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: ISPN-881 URL: https://issues.jboss.org/browse/ISPN-881 Project: Infinispan Issue Type: Bug Components: Listeners Affects Versions: 4.2.0.CR3 Environment: N/A Reporter: Miroslav Pokorny Assignee: Manik Surtani It would be advantageous if the beheaviour of the delivered modify events did not deliver null values after a put which is different from a put which replaces which does deliver the actual value. It is also not possible to take the key from the create event and try and read the cache. I have tried printing both when the Event.isPre() field is false and true and the value is null. Please examine the provided test harness which includes some prints the output which demonstrates the problem... --- package miroslav.pokorny.cache.infinispan; import org.infinispan.manager.DefaultCacheManager; import org.infinispan.manager.EmbeddedCacheManager; import org.infinispan.notifications.Listener; import org.infinispan.notifications.cachelistener.annotation.CacheEntryCreated; import org.infinispan.notifications.cachelistener.annotation.CacheEntryModified; import org.infinispan.notifications.cachelistener.event.CacheEntryCreatedEvent; import org.infinispan.notifications.cachelistener.event.CacheEntryModifiedEvent; public class InfinispanValueProblemTest { private final static String KEY = "key"; private final static String VALUE = "*Value*"; static public void main(final String[] ignored) { final EmbeddedCacheManager manager = new DefaultCacheManager(); final org.infinispan.Cache<String, String> cache = manager.getCache(); cache.addListener(new InfinispanCacheListener()); cache.put(KEY, VALUE); } @Listener static final public class InfinispanCacheListener { @CacheEntryCreated public void entryCreated(final CacheEntryCreatedEvent<String, String> event) { System.out.println("CREATE EVENT\n\t" + event.getKey() + "= cant do get value\n\tisPre=" + event.isPre() + "\n\tevent.getCache().get(event.getKey())=" + event.getCache().get(event.getKey())); } @CacheEntryModified public void entryModified(final CacheEntryModifiedEvent<String, String> event) { System.out.println("MODIFIED EVENT\n\t" + event.getKey() + "=" + event.getValue() + "\n\tisPre=" + event.isPre() + "\n\tevent.getCache().get(event.getKey())=" + event.getCache().get(event.getKey())); } } } ------------------------------------------- Running the test should print something like this [ GlobalComponentRegistry] - Infinispan version: Infinispan 'Ursus' 4.2.0.CR3 [ ComponentRegistry] - Infinispan version: Infinispan 'Ursus' 4.2.0.CR3 CREATE EVENT key= cant do get value isPre=true event.getCache().get(event.getKey())=null CREATE EVENT key= cant do get value isPre=false event.getCache().get(event.getKey())=null MODIFIED EVENT key=null isPre=true event.getCache().get(event.getKey())=null MODIFIED EVENT key=*Value* isPre=false event.getCache().get(event.getKey())=null