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, JoinType jt);

Source Link

Document

Create a join to the specified single-valued attribute using the given join type.

Usage

From source file:org.verinice.persistence.CnaTreeElementDaoImpl.java

private TypedQuery<CnaTreeElement> createQueryForScopeKeyValue(Integer scopeId, String key, String value) {
    CriteriaQuery<CnaTreeElement> query = getCriteriaBuilder().createQuery(CnaTreeElement.class);
    Root<CnaTreeElement> rootelement = query.from(CnaTreeElement.class);
    query.select(rootelement);//from   w  ww  .  ja v a 2  s  . com

    Join<CnaTreeElement, Entity> entityJoin = rootelement.join("entity", JoinType.LEFT);
    Join<PropertyList, Entity> propertyListJoin = entityJoin.join("propertyLists", JoinType.LEFT);
    Join<PropertyList, Property> propertyJoin = propertyListJoin.join("properties", JoinType.LEFT);

    List<Predicate> conditions = new ArrayList<>();
    if (key != null) {
        conditions.add(getCriteriaBuilder().like(propertyJoin.get("propertytype"), key));
    }
    if (value != null) {
        conditions.add(getCriteriaBuilder().like(propertyJoin.get("propertyvalue"), value));
    }
    if (scopeId != null) {
        conditions.add(getCriteriaBuilder().equal(rootelement.get("scopeId"), scopeId));
    }
    query.where(conditions.toArray(new Predicate[conditions.size()]));

    query.distinct(true);
    return entityManager.createQuery(query);
}

From source file:ch.puzzle.itc.mobiliar.business.server.boundary.ServerView.java

public List<ServerTuple> getNodeServers(String hostFilter, String appServerFilter, String runtimeFilter,
        String nodeFilter, String contextFilter) {
    CriteriaBuilder cb = entityManager.getCriteriaBuilder();

    CriteriaQuery<ServerTuple> q = cb.createQuery(ServerTuple.class);

    //get Node ResType
    Root<ResourceEntity> node = q.from(ResourceEntity.class);
    Join<ResourceEntity, ResourceTypeEntity> nodeType = node.join("resourceType", JoinType.LEFT);
    Join<ResourceEntity, ReleaseEntity> nodeRelease = node.join("release", JoinType.LEFT);

    //get Props on node
    Join<ResourceEntity, ResourceContextEntity> resCtx = node.join("contexts", JoinType.LEFT);
    Join<ResourceContextEntity, ContextEntity> nodeCtx = resCtx.join("context", JoinType.LEFT);
    Join<ContextEntity, ContextEntity> nodeDomain = nodeCtx.join("parent", JoinType.LEFT);
    Join<ResourceContextEntity, PropertyEntity> nodeProp = resCtx.join("properties", JoinType.LEFT);
    Join<PropertyEntity, PropertyDescriptorEntity> nodePropType = nodeProp.join("descriptor", JoinType.LEFT);

    //get AppServer
    Join<ResourceEntity, ConsumedResourceRelationEntity> nodeResRel = node.join("consumedSlaveRelations",
            JoinType.LEFT);/* w ww .ja  va 2s  .  co m*/
    Join<ConsumedResourceRelationEntity, ResourceEntity> appServer = nodeResRel.join("masterResource",
            JoinType.LEFT);
    Join<ResourceEntity, ReleaseEntity> asRelease = appServer.join("release", JoinType.LEFT);
    Join<ResourceEntity, ResourceTypeEntity> asType = appServer.join("resourceType", JoinType.LEFT);

    //get Runtime of as
    Join<ResourceEntity, ConsumedResourceRelationEntity> asResRel = appServer.join("consumedMasterRelations",
            JoinType.LEFT);
    Join<ConsumedResourceRelationEntity, ResourceEntity> asRuntime = asResRel.join("slaveResource",
            JoinType.LEFT);
    Join<ResourceEntity, ResourceTypeEntity> runtimeType = asRuntime.join("resourceType", JoinType.LEFT);

    q.select(cb.construct(ServerTuple.class, nodeProp.get("value"), appServer.get("name"), appServer.get("id"),
            asRelease.get("name"), asRuntime.get("name"), node.get("name"), node.get("id"),
            nodeRelease.get("name"), nodeDomain.get("name"), nodeDomain.get("id"), nodeCtx.get("name"),
            nodeCtx.get("id"), cb.literal(1) // true
    ));

    Predicate p = cb.and(cb.equal(nodeType.get("name"), DefaultResourceTypeDefinition.NODE.name()),
            cb.or(cb.equal(asType.get("name"), DefaultResourceTypeDefinition.APPLICATIONSERVER.name()),
                    cb.isNull(asType.get("name")) //nodes without appServer
            ),
            cb.or(cb.equal(runtimeType.get("name"), ResourceTypeEntity.RUNTIME),
                    cb.isNull(runtimeType.get("name"))),
            cb.isNotNull(nodeProp.get("value")), cb.equal(nodePropType.get("propertyName"), "hostName")

    );

    p = addFilters(p, cb, hostFilter, appServerFilter, runtimeFilter, nodeFilter, contextFilter,
            nodeProp.<String>get("value"), appServer.<String>get("name"), asRuntime.<String>get("name"),
            node.<String>get("name"), nodeCtx.<String>get("name"));

    q.where(p);

    TypedQuery<ServerTuple> query = entityManager.createQuery(q);
    List<ServerTuple> servers = query.getResultList();

    return servers;
}

From source file:ch.puzzle.itc.mobiliar.business.server.boundary.ServerView.java

public List<ServerTuple> getAppServers(String hostFilter, String appServerFilter, String runtimeFilter,
        String nodeFilter, String contextFilter) {

    CriteriaBuilder cb = entityManager.getCriteriaBuilder();

    CriteriaQuery<ServerTuple> q = cb.createQuery(ServerTuple.class);

    //get Node ResType
    Root<ResourceEntity> node = q.from(ResourceEntity.class);
    Join<ResourceEntity, ResourceTypeEntity> nodeType = node.join("resourceType", JoinType.LEFT);
    Join<ResourceEntity, ReleaseEntity> nodeRelease = node.join("release", JoinType.LEFT);

    //get AppServer
    Join<ResourceEntity, ConsumedResourceRelationEntity> nodeResRel = node.join("consumedSlaveRelations",
            JoinType.LEFT);//from ww  w .j a va  2s .  c o  m
    Join<ConsumedResourceRelationEntity, ResourceEntity> appServer = nodeResRel.join("masterResource",
            JoinType.LEFT);
    Join<ResourceEntity, ReleaseEntity> asRelease = appServer.join("release", JoinType.LEFT);
    Join<ResourceEntity, ResourceTypeEntity> asType = appServer.join("resourceType", JoinType.LEFT);

    //get Runtime of as
    Join<ResourceEntity, ConsumedResourceRelationEntity> asResRel = appServer.join("consumedMasterRelations",
            JoinType.LEFT);
    Join<ConsumedResourceRelationEntity, ResourceEntity> asRuntime = asResRel.join("slaveResource",
            JoinType.LEFT);
    Join<ResourceEntity, ResourceTypeEntity> runtimeType = asRuntime.join("resourceType", JoinType.LEFT);

    //get Props between as and node
    Join<ConsumedResourceRelationEntity, ResourceRelationContextEntity> resRelCtx = nodeResRel.join("contexts",
            JoinType.LEFT);
    Join<ResourceRelationContextEntity, ContextEntity> asCtx = resRelCtx.join("context", JoinType.LEFT);
    Join<ContextEntity, ContextEntity> asDomain = asCtx.join("parent", JoinType.LEFT);

    Join<ResourceRelationContextEntity, PropertyEntity> asProp = resRelCtx.join("properties", JoinType.LEFT);
    //here an on clause should be added, so we don't get hostnames that are divined directly on the node multiple times (and descriptor.propertyName = 'hostName')
    //on support was added in jpa 2.1 which is part of JEE 7
    Join<PropertyEntity, PropertyDescriptorEntity> asPropType = asProp.join("descriptor", JoinType.LEFT);

    q.select(cb.construct(ServerTuple.class, asProp.get("value"), appServer.get("name"), appServer.get("id"),
            asRelease.get("name"), asRuntime.get("name"), node.get("name"), node.get("id"),
            nodeRelease.get("name"), asDomain.get("name"), asDomain.get("id"), asCtx.get("name"),
            asCtx.get("id"), cb.literal(0) //false
    ));

    Predicate p = cb.and(cb.equal(nodeType.get("name"), DefaultResourceTypeDefinition.NODE.name()),
            cb.equal(asType.get("name"), DefaultResourceTypeDefinition.APPLICATIONSERVER.name()),
            cb.or(cb.equal(runtimeType.get("name"), ResourceTypeEntity.RUNTIME),
                    cb.isNull(runtimeType.get("name"))),
            cb.isNotNull(asProp.get("value")), cb.equal(asPropType.get("propertyName"), "hostName"));

    p = addFilters(p, cb, hostFilter, appServerFilter, runtimeFilter, nodeFilter, contextFilter,
            asProp.<String>get("value"), appServer.<String>get("name"), asRuntime.<String>get("name"),
            node.<String>get("name"), asCtx.<String>get("name"));

    q.where(p);

    TypedQuery<ServerTuple> query = entityManager.createQuery(q);
    List<ServerTuple> servers = query.getResultList();

    return servers;
}

From source file:org.niord.core.message.MessageService.java

/**
 * Searches out the ID's of the paged result set of messages defined by the search parameters.
 * Also fills out the total result count of the message search result.
 *
 * @param param the search parameters/*from  w w w  .  jav a2s .c om*/
 * @param result the search result to update with the total result count
 * @return the paged list of message ID's
 */
@SuppressWarnings("all")
List<Integer> searchPagedMessageIds(MessageSearchParams param, PagedSearchResultVo<Message> result)
        throws Exception {

    CriteriaBuilder builder = em.getCriteriaBuilder();
    CriteriaQuery<Tuple> tupleQuery = builder.createTupleQuery();

    // Select messages
    Root<Message> msgRoot = tupleQuery.from(Message.class);

    // Build the predicates based on the search parameters
    CriteriaHelper<Tuple> criteriaHelper = CriteriaHelper.initWithTupleQuery(em).between(msgRoot.get("updated"),
            param.getUpdatedFrom(), param.getUpdatedTo());

    // Filter by dates
    if (param.getFrom() != null || param.getTo() != null) {
        DateType dateType = param.getDateType() != null ? param.getDateType() : DateType.PUBLISH_DATE;
        Date from = param.getFrom();
        Date to = param.getTo();
        switch (dateType) {
        case PUBLISH_DATE:
            criteriaHelper.overlaps(msgRoot.get("publishDateFrom"), msgRoot.get("publishDateTo"), from, to);
            break;
        case EVENT_DATE:
            criteriaHelper.overlaps(msgRoot.get("eventDateFrom"), msgRoot.get("eventDateTo"), from, to);
            break;
        case CREATED_DATE:
            criteriaHelper.between(msgRoot.get("created"), from, to);
            break;
        case UPDATED_DATE:
            criteriaHelper.between(msgRoot.get("updated"), from, to);
            break;
        case PUBLISH_FROM_DATE:
            criteriaHelper.between(msgRoot.get("publishDateFrom"), from, to);
            break;
        case PUBLISH_TO_DATE:
            criteriaHelper.between(msgRoot.get("publishDateTo"), from, to);
            break;
        }
    }

    // Main types and sub-types
    if (!param.getMainTypes().isEmpty()) {
        criteriaHelper.in(msgRoot.get("mainType"), param.getMainTypes());
    }
    if (!param.getTypes().isEmpty()) {
        criteriaHelper.in(msgRoot.get("type"), param.getTypes());
    }

    // Statuses
    if (!param.getStatuses().isEmpty()) {
        criteriaHelper.in(msgRoot.get("status"), param.getStatuses());
    }

    // Search the Lucene index for free text search
    if (param.requiresLuceneSearch()) {
        List<Long> ids = null;
        try {
            ids = messageLuceneIndex.searchIndex(param.getQuery(), param.getLanguage(), Integer.MAX_VALUE);
        } catch (Exception e) {
            log.warn("Error searching lucene index for query " + param.getQuery());
            ids = Collections.emptyList();
        }
        criteriaHelper.in(msgRoot.get("id"), ids);
    }

    // Message series
    if (!param.getSeriesIds().isEmpty()) {
        criteriaHelper.in(msgRoot.get("messageSeries").get("seriesId"), param.getSeriesIds());
    }

    // Filter by area, join over...
    if (!param.getAreaIds().isEmpty()) {
        Join<Message, Area> areas = msgRoot.join("areas", JoinType.LEFT);
        if (!param.getAreaIds().isEmpty()) {
            Predicate[] areaMatch = param.getAreaIds().stream().map(aid -> areaService.findByAreaId(aid))
                    .filter(Objects::nonNull).map(a -> builder.like(areas.get("lineage"), a.getLineage() + "%"))
                    .toArray(Predicate[]::new);
            criteriaHelper.add(builder.or(areaMatch));
        }
    }

    // Filter on categories
    if (!param.getCategoryIds().isEmpty()) {
        Join<Message, Category> categories = msgRoot.join("categories", JoinType.LEFT);
        Predicate[] categoryMatch = param.getCategoryIds().stream()
                .map(cid -> categoryService.findByCategoryId(cid)).filter(Objects::nonNull)
                .map(c -> builder.like(categories.get("lineage"), c.getLineage() + "%"))
                .toArray(Predicate[]::new);
        criteriaHelper.add(builder.or(categoryMatch));
    }

    // Filter on charts
    if (!param.getChartNumbers().isEmpty()) {
        Join<Message, Chart> charts = msgRoot.join("charts", JoinType.LEFT);
        Predicate[] chartMatch = param.getChartNumbers().stream()
                .map(m -> builder.equal(charts.get("chartNumber"), m)).toArray(Predicate[]::new);
        criteriaHelper.add(builder.or(chartMatch));
    }

    // Geometry
    if (param.getExtent() != null) {
        param.getExtent().setSRID(WGS84_SRID);
        Join<Message, MessagePart> partRoot = msgRoot.join("parts", JoinType.LEFT);
        Join<Message, FeatureCollection> fcRoot = partRoot.join("geometry", JoinType.LEFT);
        Join<FeatureCollection, Feature> fRoot = fcRoot.join("features", JoinType.LEFT);
        Predicate geomPredicate = new SpatialIntersectsPredicate(criteriaHelper.getCriteriaBuilder(),
                fRoot.get("geometry"), param.getExtent());

        if (param.getIncludeNoPos() != null && param.getIncludeNoPos().booleanValue()) {
            // search for message with no geometry in addition to messages within extent
            criteriaHelper.add(builder.or(builder.equal(msgRoot.get("hasGeometry"), false), geomPredicate));
        } else {
            // Only search for messages within extent
            criteriaHelper.add(geomPredicate);
        }
    }

    // Tags
    if (!param.getTags().isEmpty()) {
        Join<Message, MessageTag> tags = msgRoot.join("tags", JoinType.LEFT);
        String[] tagIds = param.getTags().toArray(new String[param.getTags().size()]);
        Predicate[] tagMatch = messageTagService.findTags(tagIds).stream()
                .map(t -> builder.equal(tags.get("id"), t.getId())).toArray(Predicate[]::new);
        criteriaHelper.add(builder.or(tagMatch));
    }

    // User
    if (StringUtils.isNotBlank(param.getUsername())) {
        UserType userType = param.getUserType() == null ? UserType.UPDATED_BY : param.getUserType();
        if (userType == UserType.CREATED_BY || userType == UserType.LAST_UPDATED_BY) {
            String joinCol = userType == UserType.CREATED_BY ? "createdBy" : "lastUpdatedBy";
            Join<Message, User> userRoot = msgRoot.join(joinCol, JoinType.LEFT);
            criteriaHelper.equals(userRoot.get("username"), param.getUsername());
        } else {
            Join<Message, MessageHistory> historyRoot = msgRoot.join("history", JoinType.LEFT);
            Join<MessageHistory, User> userRoot = historyRoot.join("user", JoinType.LEFT);
            criteriaHelper.equals(userRoot.get("username"), param.getUsername());
        }
    }

    // Comments
    if (param.getCommentsType() != null) {
        Join<Message, Comment> comments = msgRoot.join("comments", JoinType.LEFT);
        User user = userService.currentUser();
        Predicate own = user != null ? builder.equal(comments.get("user"), user) : null;
        Predicate exists = builder.isNotNull(comments.get("id"));
        Predicate unack = builder.isNull(comments.get("acknowledgedBy"));

        if (user != null && param.getCommentsType() == OWN) {
            criteriaHelper.add(own);
        } else if (user != null && param.getCommentsType() == OWN_UNACK) {
            criteriaHelper.add(builder.and(own, unack));
        } else if (param.getCommentsType() == ANY_UNACK) {
            criteriaHelper.add(builder.and(exists, unack));
        } else if (param.getCommentsType() == ANY) {
            criteriaHelper.add(exists);
        }
    }

    // Refenced messages
    if (StringUtils.isNotBlank(param.getMessageId())) {
        int levels = param.getReferenceLevels() == null ? 1 : param.getReferenceLevels();
        // NB: This is expensive queries - limit the levels
        levels = Math.max(0, Math.min(5, levels));
        // First, find messages referenced by the message ID
        Set<Integer> referencedIds = findReferencedMessageIds(new HashSet<>(), param.getMessageId(), levels);
        // Next, add messages referencing the message ID
        findReferencingMessageIds(referencedIds, param.getMessageId(), levels);
        criteriaHelper.in(msgRoot.get("id"), referencedIds);
    }

    // Determine the fields to fetch
    Join<Message, Area> areaRoot = null;
    Expression<?> treeSortOrder = null;
    List<Selection<?>> fields = new ArrayList<>();
    fields.add(msgRoot.get("id"));
    if (param.sortByEventDate()) {
        fields.add(msgRoot.get("eventDateFrom"));
        fields.add(msgRoot.get("eventDateTo"));
    } else if (param.sortByPublishDate()) {
        fields.add(msgRoot.get("publishDateFrom"));
        fields.add(msgRoot.get("publishDateTo"));
    } else if (param.sortByFollowUpDate()) {
        fields.add(msgRoot.get("followUpDate"));
    } else if (param.sortById()) {
        fields.add(msgRoot.get("year"));
        fields.add(msgRoot.get("number"));
        fields.add(msgRoot.get("publishDateFrom"));
    } else if (param.sortByArea()) {
        areaRoot = msgRoot.join("area", JoinType.LEFT);
        // General messages (without an associated area) should be sorted last
        treeSortOrder = builder.selectCase().when(builder.isNull(areaRoot.get("treeSortOrder")), 999999)
                .otherwise(areaRoot.get("treeSortOrder"));
        fields.add(treeSortOrder);
        fields.add(msgRoot.get("areaSortOrder"));
        fields.add(msgRoot.get("year"));
        fields.add(msgRoot.get("number"));
    }
    Selection[] f = fields.toArray(new Selection<?>[fields.size()]);

    // Complete the query and fetch the message id's (and fields used for sorting)
    tupleQuery.multiselect(f).distinct(true).where(criteriaHelper.where());

    // Sort the query
    if (param.sortByEventDate()) {
        if (param.getSortOrder() == SortOrder.ASC) {
            tupleQuery.orderBy(builder.asc(msgRoot.get("eventDateFrom")),
                    builder.asc(msgRoot.get("eventDateTo")), builder.asc(msgRoot.get("id")));
        } else {
            tupleQuery.orderBy(builder.desc(msgRoot.get("eventDateFrom")),
                    builder.desc(msgRoot.get("eventDateTo")), builder.desc(msgRoot.get("id")));
        }
    } else if (param.sortByPublishDate()) {
        if (param.getSortOrder() == SortOrder.ASC) {
            tupleQuery.orderBy(builder.asc(msgRoot.get("publishDateFrom")),
                    builder.asc(msgRoot.get("publishDateTo")), builder.asc(msgRoot.get("id")));
        } else {
            tupleQuery.orderBy(builder.desc(msgRoot.get("publishDateFrom")),
                    builder.desc(msgRoot.get("publishDateTo")), builder.desc(msgRoot.get("id")));
        }
    } else if (param.sortByFollowUpDate()) {
        if (param.getSortOrder() == SortOrder.ASC) {
            tupleQuery.orderBy(builder.asc(msgRoot.get("followUpDate")), builder.asc(msgRoot.get("id")));
        } else {
            tupleQuery.orderBy(builder.desc(msgRoot.get("followUpDate")), builder.desc(msgRoot.get("id")));
        }
    } else if (param.sortById()) {
        if (param.getSortOrder() == SortOrder.ASC) {
            tupleQuery.orderBy(builder.asc(msgRoot.get("year")), builder.asc(msgRoot.get("number")),
                    builder.asc(msgRoot.get("publishDateFrom")), builder.asc(msgRoot.get("id")));
        } else {
            tupleQuery.orderBy(builder.desc(msgRoot.get("year")), builder.desc(msgRoot.get("number")),
                    builder.desc(msgRoot.get("publishDateFrom")), builder.desc(msgRoot.get("id")));
        }
    } else if (param.sortByArea()) {
        if (param.getSortOrder() == SortOrder.ASC) {
            tupleQuery.orderBy(builder.asc(treeSortOrder), builder.asc(msgRoot.get("areaSortOrder")),
                    builder.asc(msgRoot.get("year")), builder.asc(msgRoot.get("number")),
                    builder.asc(msgRoot.get("id")));
        } else {
            tupleQuery.orderBy(builder.desc(treeSortOrder), builder.desc(msgRoot.get("areaSortOrder")),
                    builder.desc(msgRoot.get("year")), builder.desc(msgRoot.get("number")),
                    builder.desc(msgRoot.get("id")));
        }
    }

    // Execute the query
    List<Tuple> totalResult = em.createQuery(tupleQuery).getResultList();

    // Register the total result
    result.setTotal(totalResult.size());

    List<Integer> msgIds = totalResult.stream().map(t -> (Integer) t.get(0)).collect(Collectors.toList());

    // Extract and return the paged sub-list
    int startIndex = Math.min(msgIds.size(), param.getPage() * param.getMaxSize());
    int endIndex = Math.min(msgIds.size(), startIndex + param.getMaxSize());
    return msgIds.subList(startIndex, endIndex);
}