Hello all, I have a question regarding the test case TestHBaseStore.assertTopLevelUnionsNull().
This test case creates a WebPage persistent object, sets its URL to a custom URL and sets the "content" to be null. Then it persists the object into the datastore. Next, it performs 2 checks. 1) It uses the datastore to get the persistent using the same key and specifies only the "content" field. Then it checks to see if the returned value from the datastore.get() is null. If it is null then it passes the check. 2) It checks directly into the backend database to make sure that the "content" field is empty (null). My question is this: I can understand the 2nd check. It seems very logical. However, the *1st* check does not seem logical to me. Since it uses the datastore.get(), a persistent object *will* be returned not matter if the "content" field is null or not. The object has been persisted into the backend database, therefore, the get() method *will* return a persistent object, *regardless* of the value of the "content" field. So, why does it check to see if the get() method returned null? Is my understanding wrong? Thank you very much for your help. Best regards, Apos
