About TypedQuery

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Manual
30

JPA Criteria API Queries

. A CriteriaQuery instance is equivalent to a JPQL string and not to a TypedQuery instance. Therefore, running the query still requires a TypedQuery instance: TypedQuery query = em.createQuery(q ... follows: TypedQuery query =      em.createQuery("SELECT c FROM Country c", Country.class
Manual
24

SELECT clause (JPQL / Criteria API)

, the following query returns Country objects that become managed by the EntityManager em: TypedQuery ... results. The results of the above query are received as a list of String values: TypedQueryTypedQuery query = em.createQuery( "SELECT c.name, c.capital.name FROM Country AS c
JPA Doc
24

JPA Queries

Queries are represented in JPA by the Query and TypedQuery interfaces: The JPA Query API section ... these interfaces to build and run JPQL queries. The TypedQuery interface (or alternatively the older Query ... , representing query elements. Running criteria queries, however, still requires a TypedQuery or a Query
Manual
21

CRUD Database Operations with JPA

objects from the database using JPA. Running a JPQL query is one of them: TypedQuery query ... . The TypedQuery interface, which was introduced in JPA 2, is a type safe subinterface of Query and is usually ... demonstrates processing of all the Point objects in the database: TypedQuery query
Manual
21

JPA Named Queries

at runtime by the same Query and TypedQuery interfaces but different EntityManager factory methods ... and returns a TypedQuery instance: TypedQuery query = em.createNamedQuery("Country
Tutorial
17

Step 3: Define a Spring DAO Component

.persistence.TypedQuery; import org.springframework.stereotype.Component; import org.springframework ... ); } // Retrieves all the guests: public List getAllGuests() { TypedQuery query
Tutorial
17

Step 3: Define an EJB Session Bean

.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.TypedQuery ... > getAllGuests() { TypedQuery query = em.createQuery( "SELECT g FROM Guest g
Manual
17

Setting and Tuning of JPA Queries

The Query and TypedQuery interfaces define various setting and tuning methods that may affect query execution if invoked before a query is run using getResultList or getSingleResult. Result Range ... since the setter methods in Query and TypedQuery support method chaining (by returning the query object
Tutorial
17

Step 3: Define a Spring DAO Component

.TypedQuery; import org.springframework.stereotype.Component; import org.springframework.transaction ... all the guests: public List getAllGuests() { TypedQuery query = em.createQuery
Tutorial
17

Step 3: Define an EJB Session Bean

javax.persistence.PersistenceContext; import javax.persistence.TypedQuery; @Stateless public ... () { TypedQuery query = em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest