Compare Date entities in JPA Criteria API

Question

Using JPA 2 with EclipseLink implementation.

I\'m trying to build a dynamic query which should bring me some records persisted after a given date.

Answer 1

You need to use the generated metamodel to access the attributes is a really safe way. If you use Strings to refer to your attributes, types can only be deduced from the explicit generic type used when calling the method, or by a type cast, or by the automatic type inference done by the compiler:

Path dateCreatedPath = root.get("dateCreated");
predicates.add(builder.lessThanOrEqualTo(dateCreatedPath, dateLimit));