Example usage for javax.persistence.criteria CriteriaBuilder asc

List of usage examples for javax.persistence.criteria CriteriaBuilder asc

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Introduction

In this page you can find the example usage for javax.persistence.criteria CriteriaBuilder asc.

Prototype

Order asc(Expression<?> x);

Source Link

Document

Create an ordering by the ascending value of the expression.

Usage

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * TODO: Make this method the main body of getStorageUploadStatsByBusinessObjectDefinition once we migrate away from Oracle TODO:
 * getStorageUploadStatsByBusinessObjectDefinition that uses storage file view. This method is meant to be database agnostic.
 *
 * @param storageAlternateKey the storage alternate key
 * @param dateRange the date range//from  w ww  .  j  av a  2 s .c  om
 *
 * @return the upload statistics
 */
private StorageBusinessObjectDefinitionDailyUploadStats getStorageUploadStatsByBusinessObjectDefinitionDatabaseAgnostic(
        StorageAlternateKeyDto storageAlternateKey, DateRangeDto dateRange) {
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> criteria = builder.createTupleQuery();

    Root<StorageFileViewEntity> storageFileViewEntity = criteria.from(StorageFileViewEntity.class);

    Path<String> namespaceCode = storageFileViewEntity.get(StorageFileViewEntity_.namespaceCode);
    Path<String> dataProviderCode = storageFileViewEntity.get(StorageFileViewEntity_.dataProviderCode);
    Path<String> businessObjectDefinitionName = storageFileViewEntity
            .get(StorageFileViewEntity_.businessObjectDefinitionName);
    Path<Date> createdDate = storageFileViewEntity.get(StorageFileViewEntity_.createdDate);
    Expression<Long> totalFilesExpression = builder
            .count(storageFileViewEntity.get(StorageFileViewEntity_.storageFileId));
    Expression<Long> totalBytesExpression = builder
            .sum(storageFileViewEntity.get(StorageFileViewEntity_.fileSizeInBytes));

    Predicate storageNameRestriction = builder.equal(
            builder.upper(storageFileViewEntity.get(StorageFileViewEntity_.storageCode)),
            storageAlternateKey.getStorageName().toUpperCase());
    Predicate createDateRestriction = builder.and(
            builder.greaterThanOrEqualTo(createdDate, dateRange.getLowerDate()),
            builder.lessThanOrEqualTo(createdDate, dateRange.getUpperDate()));

    criteria.multiselect(createdDate, namespaceCode, dataProviderCode, businessObjectDefinitionName,
            totalFilesExpression, totalBytesExpression);
    criteria.where(builder.and(storageNameRestriction, createDateRestriction));

    // Create the group by clause.
    List<Expression<?>> grouping = new ArrayList<>();
    grouping.add(createdDate);
    grouping.add(namespaceCode);
    grouping.add(dataProviderCode);
    grouping.add(businessObjectDefinitionName);
    criteria.groupBy(grouping);

    // Create the order by clause.
    criteria.orderBy(builder.asc(createdDate), builder.asc(namespaceCode), builder.asc(dataProviderCode),
            builder.asc(businessObjectDefinitionName));

    // Retrieve and return the storage upload statistics.
    List<Tuple> tuples = entityManager.createQuery(criteria).getResultList();
    StorageBusinessObjectDefinitionDailyUploadStats uploadStats = new StorageBusinessObjectDefinitionDailyUploadStats();

    for (Tuple tuple : tuples) {
        StorageBusinessObjectDefinitionDailyUploadStat uploadStat = new StorageBusinessObjectDefinitionDailyUploadStat();
        uploadStats.getStorageBusinessObjectDefinitionDailyUploadStats().add(uploadStat);
        uploadStat.setUploadDate(DmDateUtils.getXMLGregorianCalendarValue(tuple.get(createdDate)));
        uploadStat.setNamespace(tuple.get(namespaceCode));
        uploadStat.setDataProviderName(tuple.get(dataProviderCode));
        uploadStat.setBusinessObjectDefinitionName(tuple.get(businessObjectDefinitionName));
        uploadStat.setTotalFiles(tuple.get(totalFilesExpression));
        uploadStat.setTotalBytes(tuple.get(totalBytesExpression));
    }

    return uploadStats;
}

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * TODO: Remove this method once we migrate away from Oracle getStorageUploadStatsByBusinessObjectDefinition that uses Oracle specific 'trunc' function.
 *
 * @param storageAlternateKey the storage alternate key
 * @param dateRange the date range/*from www. ja  v a  2  s  . c om*/
 *
 * @return the upload statistics
 */
private StorageBusinessObjectDefinitionDailyUploadStats getStorageUploadStatsByBusinessObjectDefinitionOracle(
        StorageAlternateKeyDto storageAlternateKey, DateRangeDto dateRange) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> criteria = builder.createTupleQuery();

    // The criteria root is the storage file.
    Root<StorageFileEntity> storageFileEntity = criteria.from(StorageFileEntity.class);

    // Join to the other tables we can filter on.
    Join<StorageFileEntity, StorageUnitEntity> storageUnitEntity = storageFileEntity
            .join(StorageFileEntity_.storageUnit);
    Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage);
    Join<StorageUnitEntity, BusinessObjectDataEntity> businessObjectDataEntity = storageUnitEntity
            .join(StorageUnitEntity_.businessObjectData);
    Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity
            .join(BusinessObjectDataEntity_.businessObjectFormat);
    Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.businessObjectDefinition);
    Join<BusinessObjectDefinitionEntity, DataProviderEntity> dataProviderEntity = businessObjectDefinitionEntity
            .join(BusinessObjectDefinitionEntity_.dataProvider);
    Join<BusinessObjectDefinitionEntity, NamespaceEntity> namespaceEntity = businessObjectDefinitionEntity
            .join(BusinessObjectDefinitionEntity_.namespace);

    // Create paths and expressions.
    Path<String> namespacePath = namespaceEntity.get(NamespaceEntity_.code);
    Path<String> dataProviderNamePath = dataProviderEntity.get(DataProviderEntity_.name);
    Path<String> businessObjectDefinitionNamePath = businessObjectDefinitionEntity
            .get(BusinessObjectDefinitionEntity_.name);
    Expression<Date> truncCreatedOnDateExpression = builder.function("trunc", Date.class,
            storageFileEntity.get(StorageFileEntity_.createdOn));
    Expression<Long> totalFilesExpression = builder.count(storageFileEntity.get(StorageFileEntity_.id));
    Expression<Long> totalBytesExpression = builder
            .sum(storageFileEntity.get(StorageFileEntity_.fileSizeBytes));

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageAlternateKey.getStorageName().toUpperCase());
    Predicate createDateRestriction = builder.and(
            builder.greaterThanOrEqualTo(truncCreatedOnDateExpression, dateRange.getLowerDate()),
            builder.lessThanOrEqualTo(truncCreatedOnDateExpression, dateRange.getUpperDate()));

    criteria.multiselect(truncCreatedOnDateExpression, namespacePath, dataProviderNamePath,
            businessObjectDefinitionNamePath, totalFilesExpression, totalBytesExpression);
    criteria.where(builder.and(storageNameRestriction, createDateRestriction));

    // Create the group by clause.
    List<Expression<?>> grouping = new ArrayList<>();

    grouping.add(truncCreatedOnDateExpression);
    grouping.add(namespacePath);
    grouping.add(dataProviderNamePath);
    grouping.add(businessObjectDefinitionNamePath);
    criteria.groupBy(grouping);

    // Create the order by clause.
    criteria.orderBy(builder.asc(truncCreatedOnDateExpression), builder.asc(namespacePath),
            builder.asc(dataProviderNamePath), builder.asc(businessObjectDefinitionNamePath));

    // Retrieve and return the storage upload statistics.
    List<Tuple> tuples = entityManager.createQuery(criteria).getResultList();
    StorageBusinessObjectDefinitionDailyUploadStats uploadStats = new StorageBusinessObjectDefinitionDailyUploadStats();

    for (Tuple tuple : tuples) {
        StorageBusinessObjectDefinitionDailyUploadStat uploadStat = new StorageBusinessObjectDefinitionDailyUploadStat();
        uploadStats.getStorageBusinessObjectDefinitionDailyUploadStats().add(uploadStat);
        uploadStat.setUploadDate(
                DmDateUtils.getXMLGregorianCalendarValue(tuple.get(truncCreatedOnDateExpression)));
        uploadStat.setNamespace(tuple.get(namespacePath));
        uploadStat.setDataProviderName(tuple.get(dataProviderNamePath));
        uploadStat.setBusinessObjectDefinitionName(tuple.get(businessObjectDefinitionNamePath));
        uploadStat.setTotalFiles(tuple.get(totalFilesExpression));
        uploadStat.setTotalBytes(tuple.get(totalBytesExpression));
    }

    return uploadStats;
}

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * {@inheritDoc}/*from  w  ww .  ja  v a2  s.c  o m*/
 */
@Override
public List<BusinessObjectDataNotificationRegistrationKey> getBusinessObjectDataNotificationRegistrationKeys(
        String namespaceCode) {
    // Create the criteria builder and a tuple style criteria query.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> criteria = builder.createTupleQuery();

    // The criteria root is the business object data notification.
    Root<BusinessObjectDataNotificationRegistrationEntity> businessObjectDataNotificationEntity = criteria
            .from(BusinessObjectDataNotificationRegistrationEntity.class);

    // Join to the other tables we can filter on.
    Join<BusinessObjectDataNotificationRegistrationEntity, NamespaceEntity> namespaceEntity = businessObjectDataNotificationEntity
            .join(BusinessObjectDataNotificationRegistrationEntity_.namespace);

    // Get the columns.
    Path<String> namespaceCodeColumn = namespaceEntity.get(NamespaceEntity_.code);
    Path<String> notificationNameColumn = businessObjectDataNotificationEntity
            .get(BusinessObjectDataNotificationRegistrationEntity_.name);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate queryRestriction = builder.equal(builder.upper(namespaceEntity.get(NamespaceEntity_.code)),
            namespaceCode.toUpperCase());

    // Add the select clause.
    criteria.multiselect(namespaceCodeColumn, notificationNameColumn);

    // Add the where clause.
    criteria.where(queryRestriction);

    // Add the order by clause.
    criteria.orderBy(builder.asc(notificationNameColumn));

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

    // Populate the "keys" objects from the returned tuples (i.e. 1 tuple for each row).
    List<BusinessObjectDataNotificationRegistrationKey> businessObjectDataNotificationKeys = new ArrayList<>();
    for (Tuple tuple : tuples) {
        BusinessObjectDataNotificationRegistrationKey businessObjectDataNotificationKey = new BusinessObjectDataNotificationRegistrationKey();
        businessObjectDataNotificationKeys.add(businessObjectDataNotificationKey);
        businessObjectDataNotificationKey.setNamespace(tuple.get(namespaceCodeColumn));
        businessObjectDataNotificationKey.setNotificationName(tuple.get(notificationNameColumn));
    }

    return businessObjectDataNotificationKeys;
}

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * {@inheritDoc}//from   w w  w.  j a v  a2  s  . c  o m
 */
@Override
public List<BusinessObjectDataNotificationRegistrationEntity> getBusinessObjectDataNotificationRegistrations(
        String notificationEventTypeCode, BusinessObjectDataKey businessObjectDataKey) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<BusinessObjectDataNotificationRegistrationEntity> criteria = builder
            .createQuery(BusinessObjectDataNotificationRegistrationEntity.class);

    // The criteria root is the business object data notification registration entity.
    Root<BusinessObjectDataNotificationRegistrationEntity> businessObjectDataNotificationEntity = criteria
            .from(BusinessObjectDataNotificationRegistrationEntity.class);

    // Join to the other tables we can filter on.
    Join<BusinessObjectDataNotificationRegistrationEntity, NamespaceEntity> namespaceEntity = businessObjectDataNotificationEntity
            .join(BusinessObjectDataNotificationRegistrationEntity_.namespace);
    Join<BusinessObjectDataNotificationRegistrationEntity, NotificationEventTypeEntity> notificationEventTypeEntity = businessObjectDataNotificationEntity
            .join(BusinessObjectDataNotificationRegistrationEntity_.notificationEventType);
    Join<BusinessObjectDataNotificationRegistrationEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectDataNotificationEntity
            .join(BusinessObjectDataNotificationRegistrationEntity_.businessObjectDefinition);
    Join<BusinessObjectDefinitionEntity, NamespaceEntity> businessObjectDefinitionNamespaceEntity = businessObjectDefinitionEntity
            .join(BusinessObjectDefinitionEntity_.namespace);
    Join<BusinessObjectDataNotificationRegistrationEntity, FileTypeEntity> fileTypeEntity = businessObjectDataNotificationEntity
            .join(BusinessObjectDataNotificationRegistrationEntity_.fileType, JoinType.LEFT);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate queryRestriction = builder.equal(
            builder.upper(notificationEventTypeEntity.get(NotificationEventTypeEntity_.code)),
            notificationEventTypeCode.toUpperCase());
    queryRestriction = builder.and(queryRestriction,
            builder.equal(builder.upper(businessObjectDefinitionNamespaceEntity.get(NamespaceEntity_.code)),
                    businessObjectDataKey.getNamespace().toUpperCase()));
    queryRestriction = builder.and(queryRestriction,
            builder.equal(
                    builder.upper(businessObjectDefinitionEntity.get(BusinessObjectDefinitionEntity_.name)),
                    businessObjectDataKey.getBusinessObjectDefinitionName().toUpperCase()));
    queryRestriction = builder.and(queryRestriction,
            builder.or(
                    builder.isNull(businessObjectDataNotificationEntity
                            .get(BusinessObjectDataNotificationRegistrationEntity_.usage)),
                    builder.equal(
                            builder.upper(businessObjectDataNotificationEntity
                                    .get(BusinessObjectDataNotificationRegistrationEntity_.usage)),
                            businessObjectDataKey.getBusinessObjectFormatUsage().toUpperCase())));
    queryRestriction = builder.and(queryRestriction,
            builder.or(
                    builder.isNull(businessObjectDataNotificationEntity
                            .get(BusinessObjectDataNotificationRegistrationEntity_.fileType)),
                    builder.equal(builder.upper(fileTypeEntity.get(FileTypeEntity_.code)),
                            businessObjectDataKey.getBusinessObjectFormatFileType().toUpperCase())));
    queryRestriction = builder.and(queryRestriction, builder.or(
            builder.isNull(businessObjectDataNotificationEntity
                    .get(BusinessObjectDataNotificationRegistrationEntity_.businessObjectFormatVersion)),
            builder.equal(
                    businessObjectDataNotificationEntity
                            .get(BusinessObjectDataNotificationRegistrationEntity_.businessObjectFormatVersion),
                    businessObjectDataKey.getBusinessObjectFormatVersion())));

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

    // Add the clauses for the query.
    criteria.select(businessObjectDataNotificationEntity).where(queryRestriction).orderBy(orderBy);

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

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * {@inheritDoc}/*w ww.  j  a  v  a2  s . c om*/
 */
@Override
@Cacheable(DaoSpringModuleConfig.DM_CACHE_NAME)
public List<String> getSecurityFunctionsForRole(String roleCd) {
    // Create the criteria builder and a tuple style criteria query.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    // CriteriaQuery<Tuple> criteria = builder.createTupleQuery();
    CriteriaQuery<String> criteria = builder.createQuery(String.class);

    // The criteria root is the business object definition.
    Root<SecurityRoleFunctionEntity> securityRoleFunctionEntity = criteria
            .from(SecurityRoleFunctionEntity.class);

    // Join to the other tables we can filter on.
    Join<SecurityRoleFunctionEntity, SecurityRoleEntity> securityRoleEntity = securityRoleFunctionEntity
            .join(SecurityRoleFunctionEntity_.securityRole);
    Join<SecurityRoleFunctionEntity, SecurityFunctionEntity> securityFunctionEntity = securityRoleFunctionEntity
            .join(SecurityRoleFunctionEntity_.securityFunction);

    // Get the columns.
    Path<String> functionCodeColumn = securityFunctionEntity.get(SecurityFunctionEntity_.code);

    // Add the select clause.
    criteria.select(functionCodeColumn);

    criteria.where(builder.equal(builder.upper(securityRoleEntity.get(SecurityRoleEntity_.code)),
            roleCd.toUpperCase()));

    // Add the order by clause.
    criteria.orderBy(builder.asc(functionCodeColumn));

    // Run the query to get a list of tuples back.
    return entityManager.createQuery(criteria).getResultList();
}

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * {@inheritDoc}//www  .jav  a2s  . co m
 */
@Override
@Cacheable(DaoSpringModuleConfig.DM_CACHE_NAME)
public List<String> getSecurityFunctions() {
    // Create the criteria builder and a tuple style criteria query.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<String> criteria = builder.createQuery(String.class);

    // The criteria root is the business object definition.
    Root<SecurityFunctionEntity> securityFunctionEntity = criteria.from(SecurityFunctionEntity.class);

    // Get the columns.
    Path<String> functionCodeColumn = securityFunctionEntity.get(SecurityFunctionEntity_.code);

    // Add the select clause.
    criteria.select(functionCodeColumn);

    // Add the order by clause.
    criteria.orderBy(builder.asc(functionCodeColumn));

    // Run the query to get a list of tuples back.
    return entityManager.createQuery(criteria).getResultList();
}

From source file:org.finra.dm.dao.impl.DmDaoImpl.java

/**
 * {@inheritDoc}/* w  w  w .jav a 2s .c  o  m*/
 */
@Override
public JmsMessageEntity getOldestJmsMessage() {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<JmsMessageEntity> criteria = builder.createQuery(JmsMessageEntity.class);

    // The criteria root is the jms message.
    Root<JmsMessageEntity> jmsMessageEntity = criteria.from(JmsMessageEntity.class);

    // Add the select clause.
    criteria.select(jmsMessageEntity);

    // Add the order by clause, since we want to return only the oldest JMS message (a message with the smallest sequence generated id).
    criteria.orderBy(builder.asc(jmsMessageEntity.get(JmsMessageEntity_.id)));

    // Execute the query and ask it to return only the first row.
    List<JmsMessageEntity> resultList = entityManager.createQuery(criteria).setMaxResults(1).getResultList();

    // Return the result.
    return resultList.size() > 0 ? resultList.get(0) : null;
}

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

@Override
public List<AttributeValueListKey> getAttributeValueLists(Collection<String> namespaces) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<AttributeValueListEntity> criteria = builder.createQuery(AttributeValueListEntity.class);

    // The criteria root is the attribute value list entity.
    Root<AttributeValueListEntity> attributeValueListEntityRoot = criteria.from(AttributeValueListEntity.class);

    // Join to the other tables we can filter on.
    Join<AttributeValueListEntity, NamespaceEntity> namespaceEntityJoin = attributeValueListEntityRoot
            .join(AttributeValueListEntity_.namespace);

    // Create the standard restrictions (i.e. the standard where clauses).
    List<Predicate> predicates = new ArrayList<>();
    if (CollectionUtils.isNotEmpty(namespaces)) {
        predicates.add(namespaceEntityJoin.get(NamespaceEntity_.code).in(namespaces));
    }/*from w  w w.  j ava2s . co  m*/

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

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

    // Execute the query and build a list of keys.
    List<AttributeValueListKey> attributeValueListKeys = new ArrayList<>();
    for (AttributeValueListEntity attributeValueListEntity : entityManager.createQuery(criteria)
            .getResultList()) {
        attributeValueListKeys.add(new AttributeValueListKey(attributeValueListEntity.getNamespace().getCode(),
                attributeValueListEntity.getName()));
    }

    return attributeValueListKeys;
}

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

@Override
public List<BusinessObjectDataEntity> getBusinessObjectDataEntities(
        BusinessObjectDataKey businessObjectDataKey) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<BusinessObjectDataEntity> criteria = builder.createQuery(BusinessObjectDataEntity.class);

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

    // Join to the other tables we can filter on.
    Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity
            .join(BusinessObjectDataEntity_.businessObjectFormat);
    Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.fileType);
    Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity
            .join(BusinessObjectFormatEntity_.businessObjectDefinition);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate queryRestriction = getQueryRestriction(builder, businessObjectDataEntity,
            businessObjectFormatEntity, fileTypeEntity, businessObjectDefinitionEntity, businessObjectDataKey);

    // Add the clauses for the query.
    criteria.select(businessObjectDataEntity).where(queryRestriction);

    // Order by business object format and data versions.
    criteria.orderBy(/*from  w w  w  .  j av  a2s. c om*/
            builder.asc(
                    businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion)),
            builder.asc(businessObjectDataEntity.get(BusinessObjectDataEntity_.version)));

    return entityManager.createQuery(criteria).getResultList();
}

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

@Override
public List<BusinessObjectDataEntity> getBusinessObjectDataFromStorageOlderThan(StorageEntity storageEntity,
        int thresholdMinutes, List<String> businessObjectDataStatuses) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<BusinessObjectDataEntity> criteria = builder.createQuery(BusinessObjectDataEntity.class);

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

    // Join to the other tables we can filter on.
    Join<BusinessObjectDataEntity, StorageUnitEntity> storageUnitEntityJoin = businessObjectDataEntityRoot
            .join(BusinessObjectDataEntity_.storageUnits);

    // Compute threshold timestamp based on the current database timestamp and threshold minutes.
    Timestamp thresholdTimestamp = HerdDateUtils.addMinutes(getCurrentTimestamp(), -thresholdMinutes);

    // Create the standard restrictions (i.e. the standard where clauses).
    List<Predicate> predicates = new ArrayList<>();
    predicates.add(/*  w w  w .  j  av a  2s .c om*/
            builder.equal(storageUnitEntityJoin.get(StorageUnitEntity_.storageName), storageEntity.getName()));
    predicates.add(businessObjectDataEntityRoot.get(BusinessObjectDataEntity_.statusCode)
            .in(businessObjectDataStatuses));
    predicates.add(builder.lessThanOrEqualTo(
            businessObjectDataEntityRoot.get(BusinessObjectDataEntity_.createdOn), thresholdTimestamp));

    // Order results by "created on" timestamp.
    Order orderBy = builder.asc(businessObjectDataEntityRoot.get(BusinessObjectDataEntity_.createdOn));

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

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