I think what you need is
which can be specified in the container configuration.
However, that is what I would expect from the tag names, but it has nothing to do with your description. CMP should always see the entity beans with their current state in the transaction. It will (possibly, definately with the configuration above) not be the same as the database view, but should be consistent.
When the database state needs to be the same, you should set the above flag to false, but your transaction isolation level will probably not let you see the changes anyway as they are not committed yet.