Example usage for javax.persistence.criteria CriteriaQuery from

Introduction

In this page you can find the example usage for javax.persistence.criteria CriteriaQuery from.

Prototype

<X> Root<X> from(Class<X> entityClass);

Source Link

Document

Create and add a query root corresponding to the given entity, forming a cartesian product with any existing roots.

Usage

From source file:eu.uqasar.service.user.UserService.java

public List<User> getAllExceptOne(User user) {
    if (user == null) {
        return this.getAll();
    }/* w  ww. ja  v  a 2  s.  c  o m*/
    List<User> users;
    logger.infof("loading all Users except %s ...", user);
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.notEqual(root.get(User_.id), user.getId()));
    return em.createQuery(query).getResultList();
}

From source file:eu.uqasar.service.user.UserService.java

public User getByUserName(final String userName) {
    logger.infof("loading User with username %s ...", userName);
    User entity = null;/*from   w ww.j av  a2  s .  c o  m*/
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.equal(root.get(User_.userName), userName));
    List<User> resultList = em.createQuery(query).setMaxResults(1).getResultList();
    if (!resultList.isEmpty()) {
        return resultList.get(0);
    }
    return entity;
}

From source file:eu.uqasar.service.user.UserService.java

public User getByMail(final String mail) {
    logger.infof("loading User with mail %s ...", mail);
    User entity = null;/*from   w w w.ja  va2 s. co  m*/
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.equal(root.get(User_.mail), mail));
    List<User> resultList = em.createQuery(query).setMaxResults(1).getResultList();
    if (!resultList.isEmpty()) {
        return resultList.get(0);
    }
    return entity;
}

From source file:eu.uqasar.service.user.UserService.java

public User getByLdapLogin(final String userName) {
    logger.infof("loading LDAP-based User with username %s ...", userName);
    User entity = null;/*from   ww w. ja  v  a2  s . c  o  m*/
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.and(cb.equal(root.get(User_.userName), userName),
            cb.equal(root.get(User_.source), UserSource.LDAP)));
    List<User> resultList = em.createQuery(query).setMaxResults(1).getResultList();
    if (!resultList.isEmpty()) {
        return resultList.get(0);
    }
    return entity;
}

From source file:eu.uqasar.service.user.UserService.java

public User getByRegistrationTokenAndRegistrationStatus(final String token, final RegistrationStatus status) {
    logger.infof("retrievung User with registration token %s ...", token);
    User entity = null;//from www  . j  av a2  s.  co m
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.and(cb.equal(root.get(User_.registrationToken), token),
            cb.equal(root.get(User_.registrationStatus), status)));
    List<User> resultList = em.createQuery(query).setMaxResults(1).getResultList();
    if (!resultList.isEmpty()) {
        return resultList.get(0);
    }
    return entity;
}

From source file:eu.uqasar.service.user.UserService.java

public List<User> getAllUsersByDescendingSkillCount(int first, int count) {

    logger.infof("loading all Users ordered by ascending name ...");
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> criteria = cb.createQuery(User.class);
    Root<User> root = criteria.from(User.class);

    criteria.orderBy(cb.desc(root.get(User_.skillCount)));

    return em.createQuery(criteria).setFirstResult(first).setMaxResults(count).getResultList();
}

From source file:org.businessmanager.dao.GenericDaoImpl.java

@Override
public List<T> findAll(SingularAttribute<T, ?> orderAttribute, boolean orderAsc, int firstResult,
        int maxResults, Map<SingularAttribute<T, ?>, Object> filterAttributes, boolean enableLikeSearch) {
    CriteriaBuilder queryBuilder = entityManager.getCriteriaBuilder();

    CriteriaQuery<T> criteriaQuery = queryBuilder.createQuery(getPersistenceClass());
    Root<T> rootQuery = criteriaQuery.from(getPersistenceClass());

    CriteriaQuery<T> select = criteriaQuery.select(rootQuery);

    List<Predicate> predicateList = createFilterList(filterAttributes, enableLikeSearch, queryBuilder,
            rootQuery);//from w  w  w.j a  v a 2  s  . co  m
    select.where(predicateList.toArray(new Predicate[0]));

    if (orderAsc) {
        criteriaQuery.orderBy(queryBuilder.asc(rootQuery.get(orderAttribute)));
    } else {
        criteriaQuery.orderBy(queryBuilder.desc(rootQuery.get(orderAttribute)));
    }

    TypedQuery<T> typedQuery = entityManager.createQuery(criteriaQuery);

    if (firstResult != -1) {
        typedQuery.setFirstResult(firstResult);
    }
    if (maxResults != -1) {
        typedQuery.setMaxResults(maxResults);
    }

    return typedQuery.getResultList();
}

From source file:eu.uqasar.service.user.UserService.java

public User getByFullName(final String fullName) {
    logger.infof("loading User with fullName %s ...", fullName);
    User entity = null;//from  w  w  w.j a v a 2  s  . com
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> query = cb.createQuery(User.class);
    Root<User> root = query.from(User.class);
    query.where(cb.equal(cb.lower(cb.concat(root.get(User_.firstName), root.get(User_.lastName))),
            fullName.toLowerCase()));
    List<User> resultList = em.createQuery(query).setMaxResults(1).getResultList();
    if (!resultList.isEmpty()) {
        return resultList.get(0);
    }
    return entity;

}

From source file:eu.uqasar.service.user.UserService.java

public long countAllFiltered(final UserFilterStructure filter) {
    logger.infof("counting all Users matching the filter %s ...", filter);
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<Long> criteria = cb.createQuery(Long.class);
    Root<User> from = criteria.from(User.class);
    List<Predicate> predicates = getFilterPredicates(filter, cb, from);
    if (!predicates.isEmpty()) {
        criteria.where(cb.and(predicates.toArray(new Predicate[predicates.size()])));
    }/*from www .  j a  v  a2s  .  com*/
    criteria.select(cb.countDistinct(from));
    return em.createQuery(criteria).getSingleResult();
}

From source file:eu.uqasar.service.user.UserService.java

public List<User> getAllByAscendingNameFiltered(UserFilterStructure filter, int first, int count) {
    logger.infof("loading all Users ordered by ascending name matching the given filter %s...", filter);
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<User> criteria = cb.createQuery(User.class);
    Root<User> root = criteria.from(User.class);
    List<Predicate> predicates = getFilterPredicates(filter, cb, root);
    if (!predicates.isEmpty()) {
        criteria.where(cb.and(predicates.toArray(new Predicate[predicates.size()])));
    }/*from   w  w w .j  ava  2  s.  co  m*/
    criteria.orderBy(cb.asc(root.get(User_.lastName)), cb.asc(root.get(User_.firstName)));
    return em.createQuery(criteria).setFirstResult(first).setMaxResults(count).getResultList();

}