Internal Website Search
1-50 of 84 resultsSELECT clause (JPQL / Criteria API) FROM Country c can be built as a criteria query as follows: CriteriaQuery q = cb. createQuery (Country ... .capital.name FROM Country c can be defined using the criteria API as follows: CriteriaQuery q = cb ... ]); } CriteriaBuilder's tuple The Tuple interface can be used as a clean alternative to Object[] : CriteriaQuery q | |
FROM clause (JPQL / Criteria API) interface (and its sub interfaces). Criteria Query Roots The CriteriaQuery 's from method serves as ... query using the following code: CriteriaQuery q = cb. createQuery (Country.class); Root c1 = q. from ... other CriteriaQuery methods - invocation of the from method does not override a previous invocation | |
JPA Criteria API Queries: CriteriaBuilder cb = em. getCriteriaBuilder (); CriteriaQuery q = cb. createQuery (Country.class ... (both methods are equivalent). In the example above a CriteriaQuery instance is created ... expression. A CriteriaQuery instance is equivalent to a JPQL string and not to a TypedQuery instance | |
javax.persistence.criteria.CriteriaQuery JPA Interface CriteriaQuery Type Parameters: - the type of the defined result Super Interfaces: AbstractQuery , CommonAbstractCriteria The CriteriaQuery interface defines functionality ... CriteriaQuery . Public Methods CriteriaQuery distinct (boolean distinct) Specify | |
CriteriaQuery .where() for multiple conditions When using the below, there appears to be an OR condition: criteriaQuery .where(criteriaBuilder.equal(root.get("name"), name)); criteriaQuery .where(criteriaBuilder.equal(root.get("surname ... (); CriteriaQuery criteriaQuery = criteriaBuilder.createQuery(Person.class); Root root = criteriaQuery | |
CriteriaQuery.multiselect(selectionList) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery multiselect (   ... : If the type of the criteria query is CriteriaQuery (i.e., a criteria query object created by ... of the criteria query is CriteriaQuery for some user-defined class X (i.e., a criteria query object | |
CriteriaQuery.multiselect(selections) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery multiselect (   ... of the criteria query is CriteriaQuery (i.e., a criteria query object created by either the createTupleQuery ... is CriteriaQuery for some user-defined class X (i.e., a criteria query object created by passing a X class | |
"Unexpected query expression" using CriteriaQuery FetchParent Interface; CriteriaQuery criteriaQuery = cb.createQuery(Person.class); Root root = criteriaQuery .from(Person.class); root.fetch("PersonData"); //@OneToOne relationship criteriaQuery .select(root); System.out.println(em.createQuery( criteriaQuery ).getResultList()); } } Exception in | |
CriteriaQuery.select(selection) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery select (   ... type is specified. For example: CriteriaQuery q = cb.createQuery(String.class); Root order = q.from(Order.class); q.select(order.get("shippingAddress"). get("state")); CriteriaQuery q2 = cb.createQuery | |
EntityManager.createQuery(criteriaQuery) - JPA Method JPA Method in javax.persistence.EntityManager TypedQuery createQuery ( CriteriaQuery criteriaQuery ) Create an instance of TypedQuery for executing a criteria query. Parameters: criteriaQuery - a criteria query object Return: the new query instance Throws | |
JPA CriteriaQuery -- Iterate Expression | |
CriteriaQuery.having(restriction) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery having ( Expression restriction ) Specify a restriction over the groups of the query. Replaces the previous having restriction(s), if any. This method only overrides the return type of the corresponding | |
CriteriaQuery.groupBy(grouping) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery groupBy ( Expression ... grouping ) Specify the expressions that are used to form groups over the query results. Replaces the previous specified grouping expressions, if any. If no grouping expressions | |
CriteriaQuery.groupBy(grouping) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery groupBy ( List grouping ) Specify the expressions that are used to form groups over the query results. Replaces the previous specified grouping expressions, if any. If no grouping expressions are specified, any | |
CriteriaQuery.where(restrictions) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery where ( Predicate... restrictions ) Modify the query to restrict the query result according to the conjunction of the specified restriction predicates. Replaces the previously added restriction(s), if any | |
CriteriaQuery.distinct(distinct) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery distinct ( boolean distinct ) Specify whether duplicate query results will be eliminated. A true value will cause duplicates to be eliminated. A false value will cause duplicates to be retained. If distinct | |
CriteriaQuery.orderBy(o) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery orderBy ( List o ) Specify the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous ordering | |
CriteriaQuery.having(restrictions) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery having ( Predicate... restrictions ) Specify restrictions over the groups of the query according the conjunction of the specified restriction predicates. Replaces the previously added having restriction(s | |
CriteriaQuery.orderBy(o) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery orderBy ( Order... o ) Specify the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous | |
CriteriaQuery.where(restriction) - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery CriteriaQuery where ( Expression restriction ) Modify the query to restrict the query result according to the specified boolean expression. Replaces the previously added restriction(s), if any. This method only overrides | |
CriteriaQuery.getOrderList() - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery List getOrderList () Return the ordering expressions in order of precedence. Returns empty list if no ordering expressions have been specified. Modifications to the list do not affect the query. Return: the list of ordering expressions Since: JPA 2.0 | |
CriteriaQuery.getParameters() - JPA Method JPA Method in javax.persistence.criteria. CriteriaQuery Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Return: the query parameters Since: JPA 2.0 | |
CriteriaQuery using isNotNull with other conditions results in InternalException When I try to execute the following criteria query CriteriaBuilder builder = em.getCriteriaBuilder(); CriteriaQuery criteria = builder.createQuery(relationshipClass); Root root = criteria.from(relationshipClass); criteria.select(root); List predicates = new ArrayList (); predicates.add(builder | |
JPA Queries; CriteriaQuery interface: As noted above, eventually every criteria query is managed by an ordinary TypedQuery instance. The CriteriaQuery instance merely represents the query during its building | |
WHERE clause (JPQL / Criteria API) but they are especially dominant in the WHERE clause. WHERE in Criteria Queries The CriteriaQuery interface provides ... can be built by using the criteria query API as follows: CriteriaQuery q = cb. createQuery (Country.class | |
GROUP BY and HAVING clauses and HAVING in Criteria Queries The CriteriaQuery interface provides methods for setting the GROUP BY ... using the criteria query API as follows: CriteriaQuery q = cb. createQuery (Country.class); Root c = q | |
ORDER BY clause (JPQL / Criteria API) Criteria Queries The CriteriaQuery interface provides methods for setting the ORDER BY clause ... can be built using the criteria query API as follows: CriteriaQuery q = cb. createQuery (Country.class | |
ObjectDB CRUD Examples(); CriteriaQuery criteriaQuery = criteriaBuilder.createQuery(Foo.class); Root root = criteriaQuery .from(Foo.class); List allFoo = (List ) criteriaQuery .select(root); em.getTransaction().commit(); em.close ... = em.getCriteriaBuilder(); CriteriaQuery criteriaQuery = criteriaBuilder.createQuery(Foo.class); Root | |
javax.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery () Create a CriteriaQuery object. Return: criteria query object Since: JPA 2.0 CriteriaQuery createQuery (Class resultClass) Create a CriteriaQuery object ... Since: JPA 2.0 CriteriaQuery createTupleQuery () Create a CriteriaQuery object that returns a tuple | |
javax.persistence.EntityManager. See Also: Query TypedQuery CriteriaQuery PersistenceContext StoredProcedureQuery Since: JPA 1.0 The Database ... - if the delete query is found to be invalid Since: JPA 2.1 TypedQuery createQuery ( CriteriaQuery criteriaQuery ) Create an instance of TypedQuery for executing a criteria query. Parameters | |
Object as parameter results in exception = getEntityManager().getCriteriaBuilder(); CriteriaQuery c = qb.createQuery(managedClass); Root ... qb = getEntityManager().getCriteriaBuilder(); CriteriaQuery c = qb.createQuery(managedClass ... efficiency please consider: Building the query (the CriteriaQuery and the TypedQuery | |
javax.persistence.criteria.Subquery getContainingQuery () Return the query of which this is a subquery. This may be a CriteriaQuery ... of which this is a subquery. This must be a CriteriaQuery or a Subquery. Return: the enclosing query or subquery ... getRoots () Return the query roots. These are the roots that have been defined for the CriteriaQuery or | |
Path | |
javax.persistence.criteria.From order to avoid the use of Path variables. For example: CriteriaQuery q = cb.createQuery(Person.class ... "))); rather than: CriteriaQuery q = cb.createQuery(Person.class); Root p = q.from(Person.class); Path nicknames | |
javax.persistence.criteria.Path the get operation in order to avoid the use of Path variables. For example: CriteriaQuery q = cb ... . get("nicknames"))); rather than: CriteriaQuery q = cb.createQuery(Person.class); Root p = q.from(Person.class | |
CriteriaBuilder.createTupleQuery() - JPA Method JPA Method in javax.persistence.criteria.CriteriaBuilder CriteriaQuery createTupleQuery () Create a CriteriaQuery object that returns a tuple of objects as its result. Return: criteria query object Since: JPA 2.0 | |
CriteriaBuilder.createQuery(resultClass) - JPA Method JPA Method in javax.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery ( Class resultClass ) Create a CriteriaQuery object with the specified result type. Parameters: resultClass - type of the query result Return: criteria query object Since: JPA 2.0 | |
CriteriaBuilder.createQuery() - JPA Method JPA Method in javax.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery () Create a CriteriaQuery object. Return: criteria query object Since: JPA 2.0 | |
EntityManagerFactory.getCriteriaBuilder() - JPA Method JPA Method in javax.persistence.EntityManagerFactory CriteriaBuilder getCriteriaBuilder () Return an instance of CriteriaBuilder for the creation of CriteriaQuery objects. Return: CriteriaBuilder instance Throws: IllegalStateException - if the entity manager factory has been closed Since: JPA 2.0 | |
javax.persistence.EntityManagerFactory for the creation of CriteriaQuery objects. Return: CriteriaBuilder instance Throws | |
Query.setLockMode(lockMode) - JPA Method Persistence query language SELECT query or a CriteriaQuery query Since: JPA 2.0 | |
Subquery.getContainingQuery() - JPA Method JPA Method in javax.persistence.criteria.Subquery CommonAbstractCriteria getContainingQuery () Return the query of which this is a subquery. This may be a CriteriaQuery , CriteriaUpdate, CriteriaDelete, or a Subquery. Return: the enclosing query or subquery Since: JPA 2.1 | |
Subquery.getParent() - JPA Method JPA Method in javax.persistence.criteria.Subquery AbstractQuery getParent () Return the query of which this is a subquery. This must be a CriteriaQuery or a Subquery. Return: the enclosing query or subquery Since: JPA 2.0 | |
javax.persistence.Query Persistence query language SELECT query or a CriteriaQuery query Since: JPA 2.0 Query setMaxResults (int | |
javax.persistence.TypedQuery language SELECT query or a CriteriaQuery query Since: JPA 2.0 TypedQuery setMaxResults (int  | |
AbstractQuery | |
javax.persistence.StoredProcedureQuery to be a Java Persistence query language SELECT query or a CriteriaQuery query Inherited from: Query | |
javax.persistence.criteria.AbstractQuery for the CriteriaQuery or Subquery itself, including any subquery roots defined as a result of correlation | |
TypedQuery.setLockMode(lockMode) - JPA Method to be a Java Persistence query language SELECT query or a CriteriaQuery query Since: JPA 2.0 | |
EntityManager.getCriteriaBuilder() - JPA Method JPA Method in javax.persistence.EntityManager CriteriaBuilder getCriteriaBuilder () Return an instance of CriteriaBuilder for the creation of CriteriaQuery objects. Return: CriteriaBuilder instance Throws: IllegalStateException - if the entity manager has been closed Since: JPA 2.0 |