AxonFramework/AxonFramework — pull request #84 by bastiaanb (2013-04-15 14:28:56+00:00)
Title: fix AXON-121: detect usage of duplicate aggregateId

Fix for issue AXON-121. Throws EventStoreExdeption if first event.sequenceNumber == 0 and eventFile already exists.
Maybe a generic DuplicateAggregateIdentifierException would be better, but that requires adjustments to all EventStores.