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:net.groupbuy.dao.impl.OrderDaoImpl.java

public Long waitingPaymentCount(Member member) {
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Order> criteriaQuery = criteriaBuilder.createQuery(Order.class);
    Root<Order> root = criteriaQuery.from(Order.class);
    criteriaQuery.select(root);//from  www. java  2 s.  co m
    Predicate restrictions = criteriaBuilder.conjunction();
    restrictions = criteriaBuilder.and(restrictions,
            criteriaBuilder.notEqual(root.get("orderStatus"), OrderStatus.completed),
            criteriaBuilder.notEqual(root.get("orderStatus"), OrderStatus.cancelled));
    restrictions = criteriaBuilder.and(restrictions,
            criteriaBuilder.or(criteriaBuilder.equal(root.get("paymentStatus"), PaymentStatus.unpaid),
                    criteriaBuilder.equal(root.get("paymentStatus"), PaymentStatus.partialPayment)));
    restrictions = criteriaBuilder.and(restrictions, criteriaBuilder.or(root.get("expire").isNull(),
            criteriaBuilder.greaterThanOrEqualTo(root.<Date>get("expire"), new Date())));
    if (member != null) {
        restrictions = criteriaBuilder.and(restrictions, criteriaBuilder.equal(root.get("member"), member));
    }
    criteriaQuery.where(restrictions);
    return super.count(criteriaQuery, null);
}

From source file:net.groupbuy.dao.impl.OrderDaoImpl.java

public Integer getSalesVolume(Date beginDate, Date endDate) {
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Integer> criteriaQuery = criteriaBuilder.createQuery(Integer.class);
    Root<Order> root = criteriaQuery.from(Order.class);
    criteriaQuery.select(criteriaBuilder.sum(root.join("orderItems").<Integer>get("shippedQuantity")));
    Predicate restrictions = criteriaBuilder.conjunction();
    restrictions = criteriaBuilder.and(restrictions,
            criteriaBuilder.equal(root.get("orderStatus"), OrderStatus.completed));
    if (beginDate != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.greaterThanOrEqualTo(root.<Date>get("createDate"), beginDate));
    }//from  w w  w . jav  a  2s  .  c  o m
    if (endDate != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.lessThanOrEqualTo(root.<Date>get("createDate"), endDate));
    }
    criteriaQuery.where(restrictions);
    return entityManager.createQuery(criteriaQuery).setFlushMode(FlushModeType.COMMIT).getSingleResult();
}

From source file:org.openmeetings.app.data.basic.dao.LdapConfigDaoImpl.java

public List<LdapConfig> getLdapConfigs(int start, int max, String orderby, boolean asc) {
    try {// ww w .  j  ava2 s  .c  o m
        CriteriaBuilder cb = em.getCriteriaBuilder();
        CriteriaQuery<LdapConfig> cq = cb.createQuery(LdapConfig.class);
        Root<LdapConfig> c = cq.from(LdapConfig.class);
        Predicate condition = cb.equal(c.get("deleted"), "false");
        cq.where(condition);
        cq.distinct(asc);
        if (asc) {
            cq.orderBy(cb.asc(c.get(orderby)));
        } else {
            cq.orderBy(cb.desc(c.get(orderby)));
        }
        TypedQuery<LdapConfig> q = em.createQuery(cq);
        q.setFirstResult(start);
        q.setMaxResults(max);
        List<LdapConfig> ll = q.getResultList();
        return ll;
    } catch (Exception ex2) {
        log.error("[getLdapConfigs]", ex2);
    }
    return null;
}

From source file:net.groupbuy.dao.impl.OrderDaoImpl.java

public BigDecimal getSalesAmount(Date beginDate, Date endDate) {
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<BigDecimal> criteriaQuery = criteriaBuilder.createQuery(BigDecimal.class);
    Root<Order> root = criteriaQuery.from(Order.class);
    criteriaQuery.select(criteriaBuilder.sum(root.<BigDecimal>get("amountPaid")));
    Predicate restrictions = criteriaBuilder.conjunction();
    restrictions = criteriaBuilder.and(restrictions,
            criteriaBuilder.equal(root.get("orderStatus"), OrderStatus.completed));
    if (beginDate != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.greaterThanOrEqualTo(root.<Date>get("createDate"), beginDate));
    }//  w  w w  .j a v  a2  s  .  co m
    if (endDate != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.lessThanOrEqualTo(root.<Date>get("createDate"), endDate));
    }
    criteriaQuery.where(restrictions);
    return entityManager.createQuery(criteriaQuery).setFlushMode(FlushModeType.COMMIT).getSingleResult();
}

From source file:br.ufba.dcc.mestrado.computacao.repository.impl.ProjectRepositoryImpl.java

@Override
public OpenHubProjectEntity findByName(String name) {
    CriteriaBuilder criteriaBuilder = getEntityManager().getCriteriaBuilder();
    CriteriaQuery<OpenHubProjectEntity> criteriaQuery = criteriaBuilder.createQuery(getEntityClass());

    Root<OpenHubProjectEntity> root = criteriaQuery.from(getEntityClass());
    criteriaQuery.select(root);/*from  w  w w .j  a  va  2 s .c  om*/

    Predicate predicate = criteriaBuilder.equal(root.get("name"), name);
    criteriaQuery.where(predicate);

    TypedQuery<OpenHubProjectEntity> query = getEntityManager().createQuery(criteriaQuery);

    OpenHubProjectEntity projectEntity = query.getSingleResult();

    return projectEntity;
}

From source file:net.groupbuy.dao.impl.OrderDaoImpl.java

public Page<Order> findPage(OrderStatus orderStatus, PaymentStatus paymentStatus, ShippingStatus shippingStatus,
        Boolean hasExpired, Pageable pageable) {
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Order> criteriaQuery = criteriaBuilder.createQuery(Order.class);
    Root<Order> root = criteriaQuery.from(Order.class);
    criteriaQuery.select(root);//www . j a  va  2  s.c o m
    Predicate restrictions = criteriaBuilder.conjunction();
    if (orderStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("orderStatus"), orderStatus));
    }
    if (paymentStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("paymentStatus"), paymentStatus));
    }
    if (shippingStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("shippingStatus"), shippingStatus));
    }
    if (hasExpired != null) {
        if (hasExpired) {
            restrictions = criteriaBuilder.and(restrictions, root.get("expire").isNotNull(),
                    criteriaBuilder.lessThan(root.<Date>get("expire"), new Date()));
        } else {
            restrictions = criteriaBuilder.and(restrictions, criteriaBuilder.or(root.get("expire").isNull(),
                    criteriaBuilder.greaterThanOrEqualTo(root.<Date>get("expire"), new Date())));
        }
    }
    criteriaQuery.where(restrictions);
    return super.findPage(criteriaQuery, pageable);
}

From source file:net.groupbuy.dao.impl.OrderDaoImpl.java

public Long count(OrderStatus orderStatus, PaymentStatus paymentStatus, ShippingStatus shippingStatus,
        Boolean hasExpired) {/* ww w.  j  a  v  a  2  s .com*/
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Order> criteriaQuery = criteriaBuilder.createQuery(Order.class);
    Root<Order> root = criteriaQuery.from(Order.class);
    criteriaQuery.select(root);
    Predicate restrictions = criteriaBuilder.conjunction();
    if (orderStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("orderStatus"), orderStatus));
    }
    if (paymentStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("paymentStatus"), paymentStatus));
    }
    if (shippingStatus != null) {
        restrictions = criteriaBuilder.and(restrictions,
                criteriaBuilder.equal(root.get("shippingStatus"), shippingStatus));
    }
    if (hasExpired != null) {
        if (hasExpired) {
            restrictions = criteriaBuilder.and(restrictions, root.get("expire").isNotNull(),
                    criteriaBuilder.lessThan(root.<Date>get("expire"), new Date()));
        } else {
            restrictions = criteriaBuilder.and(restrictions, criteriaBuilder.or(root.get("expire").isNull(),
                    criteriaBuilder.greaterThanOrEqualTo(root.<Date>get("expire"), new Date())));
        }
    }
    criteriaQuery.where(restrictions);
    return super.count(criteriaQuery, null);
}

From source file:name.marcelomorales.siqisiqi.openjpa.impl.OrmFinderImpl.java

@Override
@TransactionAttribute//from  w w  w . j a  v a2 s .c o  m
public long countByAttribute(String attributeName, Object attributeValue) {
    CriteriaBuilder cb = entityManager.getCriteriaBuilder();
    CriteriaQuery<Long> q = cb.createQuery(Long.class);

    Root<T> p = q.from(persistentClass);
    final Expression<Long> count = newCountExpression(cb, p);
    q.select(count);
    q.where(cb.equal(p.get(attributeName), attributeValue));

    try {
        return entityManager.createQuery(q).getSingleResult();
    } catch (NoResultException e) {
        return 0;
    }
}

From source file:ru.portal.services.TableServiceImpl.java

@Override
public Page<HashMap<String, String>> findAll(String tableOrViewName, Pageable pageable) {

    List<HashMap<String, String>> result = new ArrayList<>();

    EntityType<?> type = null;//from  ww  w. j av a 2s .c om
    Set<EntityType<?>> set = em.getEntityManagerFactory().getMetamodel().getEntities();
    for (EntityType<?> entityType : set) {
        if (entityType.getBindableJavaType().getAnnotation(PortalTable.class) != null) {
            if (entityType.getBindableJavaType().getName().equals(tableOrViewName)) {
                type = entityType;
                break;
            }
        }
    }

    Long totalRows = 0L;

    if (type != null) {
        Class<?> bindableJavaType = type.getBindableJavaType();

        //count
        CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
        CriteriaQuery<Long> countQuery = criteriaBuilder.createQuery(Long.class);
        countQuery.select(criteriaBuilder.count(countQuery.from(bindableJavaType)));
        totalRows = em.createQuery(countQuery).getSingleResult();

        //select
        CriteriaBuilder cb = em.getCriteriaBuilder();
        CriteriaQuery<?> cq = cb.createQuery(bindableJavaType);
        Root<?> root = cq.from(bindableJavaType);
        //          cq.select(root);
        if (pageable == null) {
            pageable = new PageRequest(0, 50);
        }

        TypedQuery<?> query = em.createQuery(cq);

        query.setFirstResult(pageable.getPageNumber() * pageable.getPageSize());
        query.setMaxResults(pageable.getPageSize());
        List<?> all = query.getResultList();

        List<String> columns = getTableOrViewMetaData(tableOrViewName);

        for (Object object : all) {

            HashMap<String, String> res = new HashMap<>(columns.size());
            Class<? extends Object> clazz = object.getClass();
            for (String fieldName : columns) {
                try {
                    Field field = clazz.getDeclaredField(fieldName);
                    field.setAccessible(true);
                    Object fieldValue = field.get(object);
                    res.put(fieldName, fieldValue.toString());
                    //TODO cast data integer long etc
                } catch (NoSuchFieldException | SecurityException | IllegalArgumentException
                        | IllegalAccessException ex) {
                    Logger.getLogger(TableServiceImpl.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            result.add(res);
        }
    }

    PageImpl<HashMap<String, String>> list = new PageImpl<>(result, pageable, totalRows);
    return list;
}

From source file:name.marcelomorales.siqisiqi.openjpa.impl.OrmFinderImpl.java

@Override
@TransactionAttribute/*from   ww  w . j  a v a 2 s  .  c om*/
public long countByExample(final T example, final T example2) {
    OpenJPACriteriaBuilder cb = entityManager.getCriteriaBuilder();
    CriteriaQuery<Long> q = cb.createQuery(Long.class);
    Root<T> from = q.from(persistentClass);
    final Expression<Long> count = newCountExpression(cb, from);
    q.select(count);
    q.where(newQbePredicates(cb, from, example, example2));
    TypedQuery<Long> query = entityManager.createQuery(q);
    try {
        return query.getSingleResult();
    } catch (NoResultException e) {
        return 0;
    }
}