How to create JPA entity in Eclipse?

Vaadin 6 / 7 / 8 Framework Data Binding
1

I downloaded Eclipse, Vaadin plugin and created a Vaadin 7 project (7.4.3). I want to create a JPA Entity class. But when I put in @Entity for my entity class, it said “Entity cannot be resolved to a type”

Do you know why?

Thanks

2

You need to have the Persistence API library in your classpath, as described in
JPAContainer instructions
. In a normal (non-Maven) Vaadin project in Eclipse that would be:

<!-- Java Persistence API --> <dependency org="org.eclipse.persistence" name="javax.persistence" rev="2.1.0"/> …or the latest version…and of course you need the Persistence API implementation, database driver or engine, etc.