Examples of org.jboss.cache.CacheSPI.peek()

org.jboss.cache.CacheSPI.peek()
Returns a node without accessing the interceptor chain. Does not return any nodes marked as invalid. Note that this call works directly on the cache data structure and will not pass through the interceptor chain. Hence node locking, cache loading or activation does not take place, and so the results of this call should not be treated as definitive. Concurrent node removal, passivation, etc. may affect the results of this call. @param fqn the Fqn to look up. @param includeDeletedNodes if you intend to see nodes marked as deleted within the current tx, set this to true @return a node if one exists or null


      modifier.removeNode(parent);


      // assert that tombstones exist on both instances
      assert modifierImpl.peek(parent, true, true) != null;
      assert observerImpl.peek(parent, true, true) != null;
      assert modifierImpl.peek(parent, false, false) == null;
      assert observerImpl.peek(parent, false, false) == null;


      // make sure this does not exist in the loader; since it HAS been removed
      assert loader.get(parent) == null;

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      // assert that tombstones exist on both instances
      assert modifierImpl.peek(parent, true, true) != null;
      assert observerImpl.peek(parent, true, true) != null;
      assert modifierImpl.peek(parent, false, false) == null;
      assert observerImpl.peek(parent, false, false) == null;


      // make sure this does not exist in the loader; since it HAS been removed
      assert loader.get(parent) == null;


      NodeSPI observerNode = (NodeSPI) observer.getRoot().getChild(parent);

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      observerNode = (NodeSPI) observer.getRoot().getChild(parent);
      assert observerNode == null : "Should be null";


      NodeSPI modifierTombstone = modifierImpl.peek(parent, true, true);
      NodeSPI observerTombstone = observerImpl.peek(parent, true, true);


      assert modifierTombstone != null : "Tombstone should still exist";
      assert observerTombstone != null : "Tombstone should still exist";


      assert !modifierTombstone.isValid() : "Should not be valid";

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      if (isOptimistic() && invalidation)
      {
         // if we are using optimistic invalidation then we should see tombstones.  NOT otherwise.
         NodeSPI modifierTombstone = modifierImpl.peek(parent, true, true);
         NodeSPI observerTombstone = observerImpl.peek(parent, true, true);


         assert modifierTombstone != null : "Modifier tombstone should not be null";
         assert observerTombstone != null : "Observer tombstone should not be null";


         assert !modifierTombstone.isValid() : "Should not be valid";

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      }
      else
      {
         // if we are using pess locking there should be NO tombstones, regardless of replication/invalidation!
         assert modifierImpl.peek(parent, true, true) == null : "Tombstone should not exist";
         assert observerImpl.peek(parent, true, true) == null : "Tombstone should not exist";
      }
   }


   public void testExistenceOfTombstonesWithChildren()
   {

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      if (isOptimistic() && invalidation)
      {
         // if we are using optimistic invalidation then we should see tombstones.  NOT otherwise.
         NodeSPI modifierParentTombstone = modifierImpl.peek(parent, true, true);
         NodeSPI observerParentTombstone = observerImpl.peek(parent, true, true);
         NodeSPI modifierChildTombstone = modifierImpl.peek(child, true, true);
         NodeSPI observerChildTombstone = observerImpl.peek(child, true, true);


         assert modifierParentTombstone != null : "Modifier parent tombstone should not be null";
         assert observerParentTombstone != null : "Observer parent tombstone should not be null";

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      {
         // if we are using optimistic invalidation then we should see tombstones.  NOT otherwise.
         NodeSPI modifierParentTombstone = modifierImpl.peek(parent, true, true);
         NodeSPI observerParentTombstone = observerImpl.peek(parent, true, true);
         NodeSPI modifierChildTombstone = modifierImpl.peek(child, true, true);
         NodeSPI observerChildTombstone = observerImpl.peek(child, true, true);


         assert modifierParentTombstone != null : "Modifier parent tombstone should not be null";
         assert observerParentTombstone != null : "Observer parent tombstone should not be null";
         assert modifierChildTombstone != null : "Modifier child tombstone should not be null";
         assert observerChildTombstone != null : "Observer child tombstone should not be null";

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      }
      else
      {
         // if we are using pess locking there should be NO tombstones, regardless of replication/invalidation!
         assert modifierImpl.peek(parent, true, true) == null : "Tombstone should not exist";
         assert observerImpl.peek(parent, true, true) == null : "Tombstone should not exist";
         assert modifierImpl.peek(child, true, true) == null : "Tombstone should not exist";
         assert observerImpl.peek(child, true, true) == null : "Tombstone should not exist";
      }
   }
}

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      {
         // if we are using pess locking there should be NO tombstones, regardless of replication/invalidation!
         assert modifierImpl.peek(parent, true, true) == null : "Tombstone should not exist";
         assert observerImpl.peek(parent, true, true) == null : "Tombstone should not exist";
         assert modifierImpl.peek(child, true, true) == null : "Tombstone should not exist";
         assert observerImpl.peek(child, true, true) == null : "Tombstone should not exist";
      }
   }
}

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      assert second.peek(fqn, false) != null : "Should have data";
      assert second.peek(Fqn.fromRelativeElements(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, fqnTransformer.getGroupNameFromAddress(first.getLocalAddress())), false) != null : "Should have backup node for second";
      assert second.peek(Fqn.fromRelativeElements(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, fqnTransformer.getGroupNameFromAddress(second.getLocalAddress())), false) == null : "Should NOT have backup node for self!";


      assert third.peek(fqn, false) == null : "Should not have data";
      assert third.peek(Fqn.fromRelativeElements(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, fqnTransformer.getGroupNameFromAddress(third.getLocalAddress())), false) == null : "Should NOT have backup node for self!";
      assert third.peek(Fqn.fromRelativeElements(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, fqnTransformer.getGroupNameFromAddress(second.getLocalAddress())), false) != null : "Should have backup node for second";
      assert third.peek(fqnTransformer.getBackupFqn(second.getLocalAddress(), fqn), false) != null : "Should have backup data";
   }

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