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java Programming Glossary: zoo

Persist collection of interface using Hibernate

http://stackoverflow.com/questions/2912988/persist-collection-of-interface-using-hibernate

of interface using Hibernate I want to persist my litte zoo with Hibernate @Entity @Table name zoo public class Zoo @OneToMany.. to persist my litte zoo with Hibernate @Entity @Table name zoo public class Zoo @OneToMany private Set Animal animals new HashSet.. Animal ID and other properties When I try to persist the zoo Hibernate complains Use of @OneToMany or @ManyToMany targeting..

What's the purpose behind wildcards and how are they different from generics?

http://stackoverflow.com/questions/2922811/whats-the-purpose-behind-wildcards-and-how-are-they-different-from-generics

dogs List Cat cats ... countLegs cats List Animal zoo ... countLegs zoo If however you declare countLegs like this.. Cat cats ... countLegs cats List Animal zoo ... countLegs zoo If however you declare countLegs like this int countLegs List.. Animal animals Then in the previous example only countLegs zoo would have compiled because only that call has a correct type...