ATG is a very cache heavy application. Given its chatty database design, this is a good thing. One area that uses cache heavily and depends upon a proper configuration of the repository layer is the OrderRepository. Two common exceptions that are frequently misunderstood, or at least ill defined, are InvalidVersionException and ConcurrentUpdateException.<\/p>\n
The short answer is this:<\/p>\n
InvalidVersionException (“IVE”) means the users session has a version value for the current order that differs from what the repository on the same<\/u> application server thinks is the current version for that same order.<\/p>\n
ConcurrentUpdateException (“CUE”) means the version in the database<\/u> differs from what the repository on an application server thinks it should be.<\/p>\n
CUE is almost always related to either activity occurring in the database outside of the repository layer, or different caching mechanisms between application servers.<\/p>\n","protected":false},"excerpt":{"rendered":"
ATG is a very cache heavy application. Given its chatty database design, this is a good thing. One area that uses cache heavily and depends upon a proper configuration of the repository layer is the OrderRepository. Two common exceptions that…<\/p>\n