NamedQueryannotation can be applied to an entity or mapped superclass.
The following is an example of the definition of a named query in the Java Persistence query language:
@NamedQuery( name="findAllCustomersWithName", query="SELECT c FROM Customer c WHERE c.name LIKE :custName" )
The following is an example of the use of a named query:
@PersistenceContext public EntityManager em; ... customers = em.createNamedQuery("findAllCustomersWithName") .setParameter("custName", "Smith") .getResultList();
|Modifier and Type||Required Element and Description|
(Required) The name used to refer to the query with the
(Required) The query string in the Java Persistence query language.
public abstract String query
public abstract LockModeType lockMode
LockModeType.NONEis specified, the query must be executed in a transaction and the persistence context joined to the transaction.
public abstract QueryHint hints
Copyright © 1996-2015, Oracle and/or its affiliates. All Rights Reserved. Use is subject to license terms.