Example usage for javax.persistence.criteria Join join

List of usage examples for javax.persistence.criteria Join join

Introduction

In this page you can find the example usage for javax.persistence.criteria Join join.

Prototype

<Y> Join<X, Y> join(SingularAttribute<? super X, Y> attribute);

Source Link

Document

Create an inner join to the specified single-valued attribute.

Usage

From source file:org.finra.herd.dao.impl.StorageUnitDaoImpl.java

/**
 * Builds a sub-query to select the maximum business object data version.
 *
 * @param builder the criteria builder//from   w  ww  .  ja v  a2s.  c  o  m
 * @param criteria the criteria query
 * @param businessObjectDefinitionEntity the business object definition entity that appears in the from clause of the main query
 * @param businessObjectFormatEntity the business object format entity that appears in the from clause of the main query
 * @param fileTypeEntity the file type entity that appears in the from clause of the main query
 * @param businessObjectDataEntity the business object data entity that appears in the from clause of the main query
 * @param businessObjectDataVersion the business object data version. If a business object data version isn't specified, the latest data version based on
 * the specified business object data status is returned
 * @param businessObjectDataStatus the business object data status. This parameter is ignored when the business object data version is specified. When
 * business object data version and business object data status both are not specified, the latest data version for each set of partition values will be
 * used regardless of the status
 * @param storageNames the list of storage names where the business object data storage units should be looked for (case-insensitive)
 * @param storagePlatformType the optional storage platform type, e.g. S3 for Hive DDL. It is ignored when the list of storages is not empty
 * @param excludedStoragePlatformType the optional storage platform type to be excluded from search. It is ignored when the list of storages is not empty or
 * the storage platform type is specified
 * @param selectOnlyAvailableStorageUnits specifies if only available storage units will be selected or any storage units regardless of their status
 *
 * @return the sub-query to select the maximum business object data version
 */
private Subquery<Integer> getMaximumBusinessObjectFormatVersionSubQuery(CriteriaBuilder builder,
        CriteriaQuery<?> criteria, From<?, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity,
        From<?, BusinessObjectFormatEntity> businessObjectFormatEntity, From<?, FileTypeEntity> fileTypeEntity,
        From<?, BusinessObjectDataEntity> businessObjectDataEntity, Integer businessObjectDataVersion,
        String businessObjectDataStatus, List<String> storageNames, String storagePlatformType,
        String excludedStoragePlatformType, boolean selectOnlyAvailableStorageUnits) {
    // Business object format version is not specified, so just use the latest available for this set of partition values.
    Subquery<Integer> subQuery = criteria.subquery(Integer.class);

    // The criteria root is the business object data.
    Root<BusinessObjectDataEntity> subBusinessObjectDataEntity = subQuery.from(BusinessObjectDataEntity.class);

    // Join to the other tables we can filter on.
    Join<BusinessObjectDataEntity, StorageUnitEntity> subStorageUnitEntity = subBusinessObjectDataEntity
            .join(BusinessObjectDataEntity_.storageUnits);
    Join<StorageUnitEntity, StorageEntity> subStorageEntity = subStorageUnitEntity
            .join(StorageUnitEntity_.storage);
    Join<StorageEntity, StoragePlatformEntity> subStoragePlatformEntity = subStorageEntity
            .join(StorageEntity_.storagePlatform);
    Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> subBusinessObjectFormatEntity = subBusinessObjectDataEntity
            .join(BusinessObjectDataEntity_.businessObjectFormat);
    Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> subBusinessObjectDefinitionEntity = subBusinessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.businessObjectDefinition);
    Join<BusinessObjectFormatEntity, FileTypeEntity> subBusinessObjectFormatFileTypeEntity = subBusinessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.fileType);
    Join<BusinessObjectDataEntity, BusinessObjectDataStatusEntity> subBusinessObjectDataStatusEntity = subBusinessObjectDataEntity
            .join(BusinessObjectDataEntity_.status);
    Join<StorageUnitEntity, StorageUnitStatusEntity> subStorageUnitStatusEntity = subStorageUnitEntity
            .join(StorageUnitEntity_.status);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate subQueryRestriction = builder.equal(subBusinessObjectDefinitionEntity,
            businessObjectDefinitionEntity);
    subQueryRestriction = builder.and(subQueryRestriction,
            builder.equal(subBusinessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage),
                    businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage)));
    subQueryRestriction = builder.and(subQueryRestriction,
            builder.equal(subBusinessObjectFormatFileTypeEntity, fileTypeEntity));

    // Create and add standard restrictions on primary and sub-partition values.
    subQueryRestriction = builder.and(subQueryRestriction, getQueryRestrictionOnPartitionValues(builder,
            subBusinessObjectDataEntity, businessObjectDataEntity));

    // Add restrictions on business object data version and business object data status.
    Predicate subQueryRestrictionOnBusinessObjectDataVersionAndStatus = getQueryRestrictionOnBusinessObjectDataVersionAndStatus(
            builder, subBusinessObjectDataEntity, subBusinessObjectDataStatusEntity, businessObjectDataVersion,
            businessObjectDataStatus);
    if (subQueryRestrictionOnBusinessObjectDataVersionAndStatus != null) {
        subQueryRestriction = builder.and(subQueryRestriction,
                subQueryRestrictionOnBusinessObjectDataVersionAndStatus);
    }

    // Create and add a standard restriction on storage.
    subQueryRestriction = builder.and(subQueryRestriction,
            getQueryRestrictionOnStorage(builder, subStorageEntity, subStoragePlatformEntity, storageNames,
                    storagePlatformType, excludedStoragePlatformType));

    // If specified, add a restriction on storage unit status availability flag.
    if (selectOnlyAvailableStorageUnits) {
        subQueryRestriction = builder.and(subQueryRestriction,
                builder.isTrue(subStorageUnitStatusEntity.get(StorageUnitStatusEntity_.available)));
    }

    // Add all of the clauses to the subquery.
    subQuery.select(builder
            .max(subBusinessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion)))
            .where(subQueryRestriction);

    return subQuery;
}

From source file:org.finra.herd.dao.impl.StorageUnitDaoImpl.java

/**
 * Retrieves a list of storage unit availability DTOs per specified parameters. This method processes a sublist of partition filters specified by
 * partitionFilterSubListFromIndex and partitionFilterSubListSize parameters.
 *
 * @param businessObjectFormatKey the business object format key (case-insensitive). If a business object format version isn't specified, the latest
 * available format version for each partition value will be used
 * @param partitionFilters the list of partition filter to be used to select business object data instances. Each partition filter contains a list of
 * primary and sub-partition values in the right order up to the maximum partition levels allowed by business object data registration - with partition
 * values for the relative partitions not to be used for selection passed as nulls
 * @param businessObjectDataVersion the business object data version. If a business object data version isn't specified, the latest data version based on
 * the specified business object data status is returned
 * @param businessObjectDataStatus the business object data status. This parameter is ignored when the business object data version is specified. When
 * business object data version and business object data status both are not specified, the latest data version for each set of partition values will be
 * used regardless of the status/*w  w  w  . j a va2  s. c o m*/
 * @param storageNames the list of storage names where the business object data storage units should be looked for (case-insensitive)
 * @param storagePlatformType the optional storage platform type, e.g. S3 for Hive DDL. It is ignored when the list of storage names is not empty
 * @param excludedStoragePlatformType the optional storage platform type to be excluded from search. It is ignored when the list of storage names is not
 * empty or the storage platform type is specified
 * @param partitionFilterSubListFromIndex the index of the first element in the partition filter sublist
 * @param partitionFilterSubListSize the size of the partition filter sublist
 * @param selectOnlyAvailableStorageUnits specifies if only available storage units will be selected or any storage units regardless of their status
 *
 * @return the list of storage unit availability DTOs sorted by partition values
 */
private List<StorageUnitAvailabilityDto> getStorageUnitsByPartitionFilters(
        BusinessObjectFormatKey businessObjectFormatKey, List<List<String>> partitionFilters,
        Integer businessObjectDataVersion, String businessObjectDataStatus, List<String> storageNames,
        String storagePlatformType, String excludedStoragePlatformType, boolean selectOnlyAvailableStorageUnits,
        int partitionFilterSubListFromIndex, int partitionFilterSubListSize) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> criteria = builder.createTupleQuery();

    // The criteria root is the storage unit.
    Root<StorageUnitEntity> storageUnitEntity = criteria.from(StorageUnitEntity.class);

    // Join to the other tables we can filter on.
    Join<StorageUnitEntity, BusinessObjectDataEntity> businessObjectDataEntity = storageUnitEntity
            .join(StorageUnitEntity_.businessObjectData);
    Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage);
    Join<StorageEntity, StoragePlatformEntity> storagePlatformEntity = storageEntity
            .join(StorageEntity_.storagePlatform);
    Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity
            .join(BusinessObjectDataEntity_.businessObjectFormat);
    Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.fileType);
    Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.businessObjectDefinition);
    Join<BusinessObjectDefinitionEntity, NamespaceEntity> namespaceEntity = businessObjectDefinitionEntity
            .join(BusinessObjectDefinitionEntity_.namespace);
    Join<StorageUnitEntity, StorageUnitStatusEntity> storageUnitStatusEntity = storageUnitEntity
            .join(StorageUnitEntity_.status);

    // Create the standard restrictions (i.e. the standard where clauses).

    // Create a standard restriction based on the business object format key values.
    // Please note that we specify not to ignore the business object format version.
    Predicate mainQueryRestriction = getQueryRestriction(builder, businessObjectFormatEntity, fileTypeEntity,
            businessObjectDefinitionEntity, namespaceEntity, businessObjectFormatKey, false);

    // If a format version was not specified, use the latest available for this set of partition values.
    if (businessObjectFormatKey.getBusinessObjectFormatVersion() == null) {
        // Get the latest available format version for this set of partition values and per other restrictions.
        Subquery<Integer> subQuery = getMaximumBusinessObjectFormatVersionSubQuery(builder, criteria,
                businessObjectDefinitionEntity, businessObjectFormatEntity, fileTypeEntity,
                businessObjectDataEntity, businessObjectDataVersion, businessObjectDataStatus, storageNames,
                storagePlatformType, excludedStoragePlatformType, selectOnlyAvailableStorageUnits);

        mainQueryRestriction = builder.and(mainQueryRestriction,
                builder.in(
                        businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion))
                        .value(subQuery));
    }

    // Add restriction as per specified primary and/or sub-partition values.
    mainQueryRestriction = builder.and(mainQueryRestriction,
            getQueryRestrictionOnPartitionValues(builder, businessObjectDataEntity,
                    partitionFilters.subList(partitionFilterSubListFromIndex,
                            partitionFilterSubListFromIndex + partitionFilterSubListSize)));

    // If a data version was specified, use it. Otherwise, use the latest one as per specified business object data status.
    if (businessObjectDataVersion != null) {
        mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal(
                businessObjectDataEntity.get(BusinessObjectDataEntity_.version), businessObjectDataVersion));
    } else {
        // Business object data version is not specified, so get the latest one as per specified business object data status, if any.
        // Meaning, when both business object data version and business object data status are not specified, we just return
        // the latest business object data version in the specified storage.
        Subquery<Integer> subQuery = getMaximumBusinessObjectDataVersionSubQuery(builder, criteria,
                businessObjectDataEntity, businessObjectFormatEntity, businessObjectDataStatus, storageNames,
                storagePlatformType, excludedStoragePlatformType, selectOnlyAvailableStorageUnits);

        mainQueryRestriction = builder.and(mainQueryRestriction,
                builder.in(businessObjectDataEntity.get(BusinessObjectDataEntity_.version)).value(subQuery));
    }

    // If specified, add restriction on storage.
    mainQueryRestriction = builder.and(mainQueryRestriction,
            getQueryRestrictionOnStorage(builder, storageEntity, storagePlatformEntity, storageNames,
                    storagePlatformType, excludedStoragePlatformType));

    // If specified, add a restriction on storage unit status availability flag.
    if (selectOnlyAvailableStorageUnits) {
        mainQueryRestriction = builder.and(mainQueryRestriction,
                builder.isTrue(storageUnitStatusEntity.get(StorageUnitStatusEntity_.available)));
    }

    // Order by partitions and storage names.
    List<Order> orderBy = new ArrayList<>();
    for (SingularAttribute<BusinessObjectDataEntity, String> businessObjectDataPartition : BUSINESS_OBJECT_DATA_PARTITIONS) {
        orderBy.add(builder.asc(businessObjectDataEntity.get(businessObjectDataPartition)));
    }
    orderBy.add(builder.asc(storageEntity.get(StorageEntity_.name)));

    // Get the columns.
    Path<Integer> storageUnitIdColumn = storageUnitEntity.get(StorageUnitEntity_.id);
    Path<String> namespaceCodeColumn = namespaceEntity.get(NamespaceEntity_.code);
    Path<String> businessObjectDefinitionNameColumn = businessObjectDefinitionEntity
            .get(BusinessObjectDefinitionEntity_.name);
    Path<String> businessObjectFormatUsageColumn = businessObjectFormatEntity
            .get(BusinessObjectFormatEntity_.usage);
    Path<String> fileTypeColumn = fileTypeEntity.get(FileTypeEntity_.code);
    Path<Integer> businessObjectFormatVersionColumn = businessObjectFormatEntity
            .get(BusinessObjectFormatEntity_.businessObjectFormatVersion);
    Path<String> primaryPartitionValueColumn = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.partitionValue);
    Path<String> subPartitionValue1Column = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.partitionValue2);
    Path<String> subPartitionValue2Column = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.partitionValue3);
    Path<String> subPartitionValue3Column = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.partitionValue4);
    Path<String> subPartitionValue4Column = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.partitionValue5);
    Path<Integer> businessObjectDataVersionColumn = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.version);
    Path<String> storageNameColumn = storageEntity.get(StorageEntity_.name);
    Path<String> storageUnitDirectoryPathColumn = storageUnitEntity.get(StorageUnitEntity_.directoryPath);
    Path<String> businessObjectDataStatusColumn = businessObjectDataEntity
            .get(BusinessObjectDataEntity_.statusCode);
    Path<String> storageUnitStatusColumn = storageUnitEntity.get(StorageUnitEntity_.statusCode);
    Path<Boolean> storageUnitAvailableColumn = storageUnitStatusEntity.get(StorageUnitStatusEntity_.available);

    // Add the clauses for the query.
    criteria.multiselect(storageUnitIdColumn, namespaceCodeColumn, businessObjectDefinitionNameColumn,
            businessObjectFormatUsageColumn, fileTypeColumn, businessObjectFormatVersionColumn,
            primaryPartitionValueColumn, subPartitionValue1Column, subPartitionValue2Column,
            subPartitionValue3Column, subPartitionValue4Column, businessObjectDataVersionColumn,
            storageNameColumn, storageUnitDirectoryPathColumn, businessObjectDataStatusColumn,
            storageUnitStatusColumn, storageUnitAvailableColumn).where(mainQueryRestriction).orderBy(orderBy);

    // Run the query to get a list of tuples back.
    List<Tuple> tuples = entityManager.createQuery(criteria).getResultList();

    // Build a list of storage unit availability DTOs to return.
    List<StorageUnitAvailabilityDto> storageUnitAvailabilityDtos = new ArrayList<>();
    for (Tuple tuple : tuples) {
        storageUnitAvailabilityDtos.add(new StorageUnitAvailabilityDto(tuple.get(storageUnitIdColumn),
                new BusinessObjectDataKey(tuple.get(namespaceCodeColumn),
                        tuple.get(businessObjectDefinitionNameColumn),
                        tuple.get(businessObjectFormatUsageColumn), tuple.get(fileTypeColumn),
                        tuple.get(businessObjectFormatVersionColumn), tuple.get(primaryPartitionValueColumn),
                        getSubPartitionValuesFromRawSubPartitionValues(Arrays.asList(
                                tuple.get(subPartitionValue1Column), tuple.get(subPartitionValue2Column),
                                tuple.get(subPartitionValue3Column), tuple.get(subPartitionValue4Column))),
                        tuple.get(businessObjectDataVersionColumn)),
                tuple.get(storageNameColumn), tuple.get(storageUnitDirectoryPathColumn),
                tuple.get(businessObjectDataStatusColumn), tuple.get(storageUnitStatusColumn),
                tuple.get(storageUnitAvailableColumn)));
    }

    return storageUnitAvailabilityDtos;
}

From source file:org.finra.herd.dao.impl.StorageUnitNotificationRegistrationDaoImpl.java

@Override
public List<NotificationRegistrationKey> getStorageUnitNotificationRegistrationKeysByNotificationFilter(
        StorageUnitNotificationFilter businessObjectDataNotificationFilter) {
    // Create the criteria builder and a tuple style criteria query.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> criteria = builder.createTupleQuery();

    // The criteria root is the storage unit notification registration.
    Root<StorageUnitNotificationRegistrationEntity> notificationRegistrationEntityRoot = criteria
            .from(StorageUnitNotificationRegistrationEntity.class);

    // Join to the other tables we can filter on.
    Join<StorageUnitNotificationRegistrationEntity, NamespaceEntity> notificationRegistrationNamespaceEntityJoin = notificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.namespace);
    Join<StorageUnitNotificationRegistrationEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = notificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.businessObjectDefinition);
    Join<BusinessObjectDefinitionEntity, NamespaceEntity> businessObjectDefinitionNamespaceEntity = businessObjectDefinitionEntity
            .join(BusinessObjectDefinitionEntity_.namespace);
    Join<StorageUnitNotificationRegistrationEntity, FileTypeEntity> fileTypeEntity = notificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.fileType, JoinType.LEFT);

    // Get the columns.
    Path<String> notificationRegistrationNamespaceColumn = notificationRegistrationNamespaceEntityJoin
            .get(NamespaceEntity_.code);
    Path<String> notificationRegistrationNameColumn = notificationRegistrationEntityRoot
            .get(StorageUnitNotificationRegistrationEntity_.name);

    // Create the standard restrictions (i.e. the standard where clauses).
    List<Predicate> predicates = new ArrayList<>();
    predicates.add(/*from  www .  j a  va 2s  .  c  om*/
            builder.equal(builder.upper(businessObjectDefinitionNamespaceEntity.get(NamespaceEntity_.code)),
                    businessObjectDataNotificationFilter.getNamespace().toUpperCase()));
    predicates.add(builder.equal(
            builder.upper(businessObjectDefinitionEntity.get(BusinessObjectDefinitionEntity_.name)),
            businessObjectDataNotificationFilter.getBusinessObjectDefinitionName().toUpperCase()));
    if (StringUtils.isNotBlank(businessObjectDataNotificationFilter.getBusinessObjectFormatUsage())) {
        predicates.add(builder.or(
                builder.isNull(notificationRegistrationEntityRoot
                        .get(StorageUnitNotificationRegistrationEntity_.usage)),
                builder.equal(
                        builder.upper(notificationRegistrationEntityRoot
                                .get(StorageUnitNotificationRegistrationEntity_.usage)),
                        businessObjectDataNotificationFilter.getBusinessObjectFormatUsage().toUpperCase())));
    }
    if (StringUtils.isNotBlank(businessObjectDataNotificationFilter.getBusinessObjectFormatFileType())) {
        predicates.add(builder.or(
                builder.isNull(notificationRegistrationEntityRoot
                        .get(StorageUnitNotificationRegistrationEntity_.fileType)),
                builder.equal(builder.upper(fileTypeEntity.get(FileTypeEntity_.code)),
                        businessObjectDataNotificationFilter.getBusinessObjectFormatFileType().toUpperCase())));
    }

    // Add the select and where clauses to the query.
    criteria.multiselect(notificationRegistrationNamespaceColumn, notificationRegistrationNameColumn)
            .where(builder.and(predicates.toArray(new Predicate[predicates.size()])));

    // Add the order by clause to the query.
    criteria.orderBy(builder.asc(notificationRegistrationNamespaceColumn),
            builder.asc(notificationRegistrationNameColumn));

    // Run the query to get a list of tuples back.
    List<Tuple> tuples = entityManager.createQuery(criteria).getResultList();

    // Populate the list of keys from the returned tuples.
    return getNotificationRegistrationKeys(tuples, notificationRegistrationNamespaceColumn,
            notificationRegistrationNameColumn);
}

From source file:org.finra.herd.dao.impl.StorageUnitNotificationRegistrationDaoImpl.java

@Override
public List<StorageUnitNotificationRegistrationEntity> getStorageUnitNotificationRegistrations(
        String notificationEventTypeCode, BusinessObjectDataKey businessObjectDataKey, String storageName,
        String newStorageUnitStatus, String oldStorageUnitStatus, String notificationRegistrationStatus) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageUnitNotificationRegistrationEntity> criteria = builder
            .createQuery(StorageUnitNotificationRegistrationEntity.class);

    // The criteria root is the storage unit notification registration entity.
    Root<StorageUnitNotificationRegistrationEntity> storageUnitNotificationRegistrationEntityRoot = criteria
            .from(StorageUnitNotificationRegistrationEntity.class);

    // Join to the other tables we can filter on.
    Join<StorageUnitNotificationRegistrationEntity, NamespaceEntity> namespaceEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.namespace);
    Join<StorageUnitNotificationRegistrationEntity, NotificationEventTypeEntity> notificationEventTypeEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.notificationEventType);
    Join<StorageUnitNotificationRegistrationEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.businessObjectDefinition);
    Join<BusinessObjectDefinitionEntity, NamespaceEntity> businessObjectDefinitionNamespaceEntityJoin = businessObjectDefinitionEntityJoin
            .join(BusinessObjectDefinitionEntity_.namespace);
    Join<StorageUnitNotificationRegistrationEntity, StorageEntity> storageEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.storage);
    Join<StorageUnitNotificationRegistrationEntity, FileTypeEntity> fileTypeEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.fileType, JoinType.LEFT);
    Join<StorageUnitNotificationRegistrationEntity, StorageUnitStatusEntity> newStorageUnitStatusEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.newStorageUnitStatus, JoinType.LEFT);
    Join<StorageUnitNotificationRegistrationEntity, StorageUnitStatusEntity> oldStorageUnitStatusEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.oldStorageUnitStatus, JoinType.LEFT);
    Join<StorageUnitNotificationRegistrationEntity, NotificationRegistrationStatusEntity> notificationRegistrationStatusEntityJoin = storageUnitNotificationRegistrationEntityRoot
            .join(StorageUnitNotificationRegistrationEntity_.notificationRegistrationStatus);

    // Create the standard restrictions (i.e. the standard where clauses).
    List<Predicate> predicates = new ArrayList<>();
    predicates.add(//from  ww  w  .  jav a2 s.  c  o m
            builder.equal(builder.upper(notificationEventTypeEntityJoin.get(NotificationEventTypeEntity_.code)),
                    notificationEventTypeCode.toUpperCase()));
    predicates.add(
            builder.equal(builder.upper(businessObjectDefinitionNamespaceEntityJoin.get(NamespaceEntity_.code)),
                    businessObjectDataKey.getNamespace().toUpperCase()));
    predicates.add(builder.equal(
            builder.upper(businessObjectDefinitionEntityJoin.get(BusinessObjectDefinitionEntity_.name)),
            businessObjectDataKey.getBusinessObjectDefinitionName().toUpperCase()));
    predicates.add(builder.equal(builder.upper(storageEntityJoin.get(StorageEntity_.name)),
            storageName.toUpperCase()));
    predicates.add(builder.or(
            builder.isNull(storageUnitNotificationRegistrationEntityRoot
                    .get(StorageUnitNotificationRegistrationEntity_.usage)),
            builder.equal(
                    builder.upper(storageUnitNotificationRegistrationEntityRoot
                            .get(StorageUnitNotificationRegistrationEntity_.usage)),
                    businessObjectDataKey.getBusinessObjectFormatUsage().toUpperCase())));
    predicates.add(builder.or(
            builder.isNull(storageUnitNotificationRegistrationEntityRoot
                    .get(StorageUnitNotificationRegistrationEntity_.fileType)),
            builder.equal(builder.upper(fileTypeEntityJoin.get(FileTypeEntity_.code)),
                    businessObjectDataKey.getBusinessObjectFormatFileType().toUpperCase())));
    predicates.add(builder.or(
            builder.isNull(storageUnitNotificationRegistrationEntityRoot
                    .get(StorageUnitNotificationRegistrationEntity_.businessObjectFormatVersion)),
            builder.equal(
                    storageUnitNotificationRegistrationEntityRoot
                            .get(StorageUnitNotificationRegistrationEntity_.businessObjectFormatVersion),
                    businessObjectDataKey.getBusinessObjectFormatVersion())));
    predicates.add(builder.or(
            builder.isNull(storageUnitNotificationRegistrationEntityRoot
                    .get(StorageUnitNotificationRegistrationEntity_.newStorageUnitStatus)),
            builder.equal(builder.upper(newStorageUnitStatusEntityJoin.get(StorageUnitStatusEntity_.code)),
                    newStorageUnitStatus.toUpperCase())));
    // Please note that old business object data status parameter value is null for a business object data registration event.
    predicates.add(builder.or(
            builder.isNull(storageUnitNotificationRegistrationEntityRoot
                    .get(StorageUnitNotificationRegistrationEntity_.oldStorageUnitStatus)),
            builder.equal(builder.upper(oldStorageUnitStatusEntityJoin.get(StorageUnitStatusEntity_.code)),
                    oldStorageUnitStatus == null ? null : oldStorageUnitStatus.toUpperCase())));
    predicates.add(builder.equal(
            builder.upper(
                    notificationRegistrationStatusEntityJoin.get(NotificationRegistrationStatusEntity_.code)),
            notificationRegistrationStatus.toUpperCase()));

    // Order the results by namespace and notification name.
    List<Order> orderBy = new ArrayList<>();
    orderBy.add(builder.asc(namespaceEntityJoin.get(NamespaceEntity_.code)));
    orderBy.add(builder.asc(storageUnitNotificationRegistrationEntityRoot
            .get(StorageUnitNotificationRegistrationEntity_.name)));

    // Add the clauses for the query.
    criteria.select(storageUnitNotificationRegistrationEntityRoot)
            .where(builder.and(predicates.toArray(new Predicate[predicates.size()]))).orderBy(orderBy);

    // Execute the query and return the results.
    return entityManager.createQuery(criteria).getResultList();
}

From source file:org.sparkcommerce.core.catalog.dao.ProductDaoImpl.java

protected List<Product> readFilteredActiveProductsByCategoryInternal(Long categoryId, Date currentDate,
        ProductSearchCriteria searchCriteria) {
    // Set up the criteria query that specifies we want to return Products
    CriteriaBuilder builder = em.getCriteriaBuilder();
    CriteriaQuery<Product> criteria = builder.createQuery(Product.class);

    // The root of our search is Category since we are browsing
    Root<CategoryProductXrefImpl> productXref = criteria.from(CategoryProductXrefImpl.class);

    // We want to filter on attributes from product and sku
    Join<CategoryProductXref, Product> product = productXref.join("product");
    Join<Product, Sku> sku = product.join("defaultSku");
    Join<CategoryProductXref, Category> category = productXref.join("category");

    // Product objects are what we want back
    criteria.select(product);/*ww  w.j a  v  a2  s  . c  om*/

    // We only want results from the determine category
    List<Predicate> restrictions = new ArrayList<Predicate>();
    restrictions.add(category.get("id").in(sandBoxHelper.mergeCloneIds(em, CategoryImpl.class, categoryId)));

    attachProductSearchCriteria(searchCriteria, product, sku, restrictions);

    attachActiveRestriction(currentDate, product, sku, restrictions);

    attachOrderBy(searchCriteria, product, sku, criteria);

    // Execute the query with the restrictions
    criteria.where(restrictions.toArray(new Predicate[restrictions.size()]));

    TypedQuery<Product> typedQuery = em.createQuery(criteria);
    //don't cache - not really practical for open ended search
    //typedQuery.setHint(SandBoxHelper.QueryHints.FILTER_INCLUDE, ".*CategoryProductXrefImpl");

    return typedQuery.getResultList();
}