Example usage for javax.persistence.criteria Root join

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

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Introduction

In this page you can find the example usage for javax.persistence.criteria Root 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.dm.dao.impl.DmDaoImpl.java

/**
 * Builds a sub-query to select the maximum business object data version.
 *
 * @param builder the criteria builder//  ww  w .j  a  va 2  s .c  o  m
 * @param criteria the criteria query
 * @param businessObjectDataEntity the business object data 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 businessObjectDataStatus the business object data status
 *
 * @return the sub-query to select the maximum business object data version
 */
private Subquery<Integer> getMaximumBusinessObjectDataVersionSubQuery(CriteriaBuilder builder,
        CriteriaQuery<?> criteria, From<?, BusinessObjectDataEntity> businessObjectDataEntity,
        From<?, BusinessObjectFormatEntity> businessObjectFormatEntity, String businessObjectDataStatus,
        From<?, StorageEntity> storageEntity) {
    // Business object data version is not specified, so get the latest one in the specified storage.
    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<BusinessObjectDataEntity, BusinessObjectFormatEntity> subBusinessObjectFormatEntity = subBusinessObjectDataEntity
            .join(BusinessObjectDataEntity_.businessObjectFormat);

    // Add a standard restriction on business object format.
    Predicate subQueryRestriction = builder.equal(subBusinessObjectFormatEntity, businessObjectFormatEntity);

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

    // If specified, create and add a standard restriction on business object data status.
    if (businessObjectDataStatus != null) {
        Join<BusinessObjectDataEntity, BusinessObjectDataStatusEntity> subBusinessObjectDataStatusEntity = subBusinessObjectDataEntity
                .join(BusinessObjectDataEntity_.status);

        subQueryRestriction = builder.and(subQueryRestriction,
                builder.equal(
                        builder.upper(
                                subBusinessObjectDataStatusEntity.get(BusinessObjectDataStatusEntity_.code)),
                        businessObjectDataStatus.toUpperCase()));
    }

    // Create and add a standard restriction on storage.
    subQueryRestriction = builder.and(subQueryRestriction, builder.equal(subStorageEntity, storageEntity));

    subQuery.select(builder.max(subBusinessObjectDataEntity.get(BusinessObjectDataEntity_.version)))
            .where(subQueryRestriction);

    return subQuery;
}

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

/**
 * {@inheritDoc}//w ww. j  av a2 s . c  om
 */
@Override
public StorageUnitEntity getStorageUnitByBusinessObjectDataAndStorageName(
        BusinessObjectDataEntity businessObjectDataEntity, String storageName) {
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageUnitEntity> criteria = builder.createQuery(StorageUnitEntity.class);
    Root<StorageUnitEntity> storageUnitEntity = criteria.from(StorageUnitEntity.class);

    // join storage unit to storage to retrieve name
    Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage);

    // where business object data equals
    Predicate businessObjectDataRestriction = builder
            .equal(storageUnitEntity.get(StorageUnitEntity_.businessObjectData), businessObjectDataEntity);
    // where storage name equals, ignoring case
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageName.toUpperCase());

    criteria.select(storageUnitEntity)
            .where(builder.and(businessObjectDataRestriction, storageNameRestriction));

    List<StorageUnitEntity> resultList = entityManager.createQuery(criteria).getResultList();

    // return single result or null
    return resultList.size() >= 1 ? resultList.get(0) : null;
}

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

/**
 * {@inheritDoc}//  w w  w .j a v  a 2  s  .com
 */
@Override
public StorageUnitEntity getStorageUnitByStorageNameAndDirectoryPath(String storageName, String directoryPath) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageUnitEntity> criteria = builder.createQuery(StorageUnitEntity.class);

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

    // Join to the other tables we can filter on.
    Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageName.toUpperCase());
    Predicate directoryPathRestriction = builder.equal(storageUnitEntity.get(StorageUnitEntity_.directoryPath),
            directoryPath);

    criteria.select(storageUnitEntity).where(builder.and(storageNameRestriction, directoryPathRestriction));

    List<StorageUnitEntity> resultList = entityManager.createQuery(criteria).getResultList();

    // Return the first found storage unit or null if none were found.
    return resultList.size() >= 1 ? resultList.get(0) : null;
}

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

/**
 * {@inheritDoc}/* w w w.  j a  v a2  s  .  c o  m*/
 */
@Override
public StorageFileEntity getStorageFileByStorageNameAndFilePath(String storageName, String filePath) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageFileEntity> criteria = builder.createQuery(StorageFileEntity.class);

    // The criteria root is the storage files.
    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);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate filePathRestriction = builder.equal(storageFileEntity.get(StorageFileEntity_.path), filePath);
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageName.toUpperCase());

    criteria.select(storageFileEntity).where(builder.and(filePathRestriction, storageNameRestriction));

    return executeSingleResultQuery(criteria, String.format(
            "Found more than one storage file with parameters {storageName=\"%s\"," + " filePath=\"%s\"}.",
            storageName, filePath));
}

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

/**
 * {@inheritDoc}// ww w  .  j av a  2s  . co  m
 */
@Override
public Long getStorageFileCount(String storageName, String filePathPrefix) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Long> criteria = builder.createQuery(Long.class);

    // The criteria root is the storage files.
    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);

    // Create path.
    Expression<Long> storageFileCount = builder.count(storageFileEntity.get(StorageFileEntity_.id));

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageName.toUpperCase());
    Predicate filePathRestriction = builder.like(storageFileEntity.get(StorageFileEntity_.path),
            String.format("%s%%", filePathPrefix));

    // Add the clauses for the query.
    criteria.select(storageFileCount).where(builder.and(storageNameRestriction, filePathRestriction));

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

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

/**
 * {@inheritDoc}/* w  ww  . j  a  va2  s.co m*/
 */
@Override
public List<StorageFileEntity> getStorageFileEntities(String storageName, String filePathPrefix) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageFileEntity> criteria = builder.createQuery(StorageFileEntity.class);

    // The criteria root is the storage files.
    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);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate filePathRestriction = builder.like(storageFileEntity.get(StorageFileEntity_.path),
            String.format("%s%%", filePathPrefix));
    Predicate storageNameRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)),
            storageName.toUpperCase());

    // Order the results by file path.
    Order orderByFilePath = builder.asc(storageFileEntity.get(StorageFileEntity_.path));

    criteria.select(storageFileEntity).where(builder.and(filePathRestriction, storageNameRestriction))
            .orderBy(orderByFilePath);

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

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

/**
 * {@inheritDoc}/* w ww  .  ja v a  2  s .  co  m*/
 */
@Override
public List<StorageFileEntity> getStorageFilesByStorageAndBusinessObjectData(StorageEntity storageEntity,
        List<BusinessObjectDataEntity> businessObjectDataEntities) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<StorageFileEntity> criteria = builder.createQuery(StorageFileEntity.class);

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

    // Join to the other tables we can filter on.
    Join<StorageFileEntity, StorageUnitEntity> storageUnitEntity = storageFileEntity
            .join(StorageFileEntity_.storageUnit);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate queryRestriction = builder.equal(storageUnitEntity.get(StorageUnitEntity_.storage),
            storageEntity);
    queryRestriction = builder.and(queryRestriction, getPredicateForInClause(builder,
            storageUnitEntity.get(StorageUnitEntity_.businessObjectData), businessObjectDataEntities));

    // Order the results by storage file path.
    Order orderBy = builder.asc(storageFileEntity.get(StorageFileEntity_.path));

    // Add the clauses for the query.
    criteria.select(storageFileEntity).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

/**
 * TODO: Remove this method once we migrate away from Oracle getStorageUploadStats that uses Oracle specific 'trunc' function.
 *
 * @param storageAlternateKey the storage alternate key
 * @param dateRange the date range/*from   w  w w . j a  v a 2s . co  m*/
 *
 * @return the upload statistics
 */
private StorageDailyUploadStats getStorageUploadStatsOracle(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);

    // Create paths.
    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, totalFilesExpression, totalBytesExpression);
    criteria.where(builder.and(storageNameRestriction, createDateRestriction));

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

    grouping.add(truncCreatedOnDateExpression);
    criteria.groupBy(grouping);

    // Create the order by clause.
    criteria.orderBy(builder.asc(truncCreatedOnDateExpression));

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

    for (Tuple tuple : tuples) {
        StorageDailyUploadStat uploadStat = new StorageDailyUploadStat();
        uploadStats.getStorageDailyUploadStats().add(uploadStat);
        uploadStat.setUploadDate(
                DmDateUtils.getXMLGregorianCalendarValue(tuple.get(truncCreatedOnDateExpression)));
        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  w w w.  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 w  w. j  a va  2 s  .  co  m
 */
@Override
public JobDefinitionEntity getJobDefinitionByAltKey(String namespace, String jobName) {
    // Create the criteria builder and the criteria.
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<JobDefinitionEntity> criteria = builder.createQuery(JobDefinitionEntity.class);

    // The criteria root is the job definition.
    Root<JobDefinitionEntity> jobDefinition = criteria.from(JobDefinitionEntity.class);

    // Join to the other tables we can filter on.
    Join<JobDefinitionEntity, NamespaceEntity> namespaceJoin = jobDefinition
            .join(JobDefinitionEntity_.namespace);

    // Create the standard restrictions (i.e. the standard where clauses).
    Predicate namespaceRestriction = builder.equal(builder.upper(namespaceJoin.get(NamespaceEntity_.code)),
            namespace.toUpperCase());
    Predicate jobNameRestriction = builder.equal(builder.upper(jobDefinition.get(JobDefinitionEntity_.name)),
            jobName.toUpperCase());

    criteria.select(jobDefinition).where(builder.and(namespaceRestriction, jobNameRestriction));

    return executeSingleResultQuery(criteria, String.format(
            "Found more than one Activiti job definition with parameters {namespace=\"%s\", jobName=\"%s\"}.",
            namespace, jobName));
}