Package javax.persistence.criteria

Examples of javax.persistence.criteria.CriteriaQuery.from()

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    public void testSizeExpressionInProjection() {
        String jpql = "SELECT SIZE(d.employees) FROM Department d "
         + "WHERE d.name = 'Sales'";
       
        CriteriaQuery q = cb.createQuery();
        Root<Department> d = q.from(Department.class);
        q.where(cb.equal(
                d.get(department_.getSingularAttribute("name", String.class)),
                "Sales"));
        SetAttribute<Department, Employee> employees =
            department_.getDeclaredSet("employees", Employee.class);
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    public void testEqualWithAttributeAndLiteral() {
        String jpql = "select a from Account a where a.balance=100";

        CriteriaQuery c = cb.createQuery();
        Root<Account> account = c.from(Account.class);
        c.select(account).where(cb.equal(account.get(Account_.balance), 100));

        assertEquivalence(c, jpql);
    }
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        em.createQuery(c).getResultList();
    }
   
    public void testDefaultProjectionWithUntypedResult() {
        CriteriaQuery cquery = cb.createQuery();
        Root<Customer> customer = cquery.from(Customer.class);

        //Get Metamodel from Root
        EntityType<Customer> Customer_ = customer.getModel();

        cquery.where(cb.equal(
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        return findFormEntities(false, maxResults, firstResult);
    }

    private List<Form> findFormEntities(boolean all, int maxResults, int firstResult) {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        cq.select(cq.from(Form.class));
        Query q = em.createQuery(cq);
        if (!all) {
            q.setMaxResults(maxResults);
            q.setFirstResult(firstResult);
        }
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        return em.find(Form.class, id);
    }

    public int getFormCount() {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        Root<Form> rt = cq.from(Form.class);
        cq.select(em.getCriteriaBuilder().count(rt));
        Query q = em.createQuery(cq);
        return ((Long) q.getSingleResult()).intValue();
    }
}
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        return findFormDataEntities(false, maxResults, firstResult);
    }

    private List<FormData> findFormDataEntities(boolean all, int maxResults, int firstResult) {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        cq.select(cq.from(FormData.class));
        Query q = em.createQuery(cq);
        if (!all) {
            q.setMaxResults(maxResults);
            q.setFirstResult(firstResult);
        }
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        return em.find(FormData.class, id);
    }

    public int getFormDataCount() {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        Root<FormData> rt = cq.from(FormData.class);
        cq.select(em.getCriteriaBuilder().count(rt));
        Query q = em.createQuery(cq);
        return ((Long) q.getSingleResult()).intValue();
    }
   
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        return findFormDataEntities(false, maxResults, firstResult);
    }

    private List<FormBuilderItemData> findFormDataEntities(boolean all, int maxResults, int firstResult) {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        cq.select(cq.from(FormBuilderItemData.class));
        Query q = em.createQuery(cq);
        if (!all) {
            q.setMaxResults(maxResults);
            q.setFirstResult(firstResult);
        }
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    private List<Tagrates> findTagratesEntities(boolean all, int maxResults, int firstResult) {
        EntityManager em = getEntityManager();
        try {
            CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
            cq.select(cq.from(Tagrates.class));
            Query q = em.createQuery(cq);
            if (!all) {
                q.setMaxResults(maxResults);
                q.setFirstResult(firstResult);
            }
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    public int getTagratesCount() {
        EntityManager em = getEntityManager();
        try {
            CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
            Root<Tagrates> rt = cq.from(Tagrates.class);
            cq.select(em.getCriteriaBuilder().count(rt));
            Query q = em.createQuery(cq);
            return ((Long) q.getSingleResult()).intValue();
        } finally {
            em.close();
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