Examples with Query com.baidu.hugegraph.backend.query.Query used on opensource projects

Example 6 with Query

use of com.baidu.hugegraph.backend.query.Query in project incubator-hugegraph by apache.

the class HugeTraverser method edgesOfVertex.

private Iterator<Edge> edgesOfVertex(Id source, EdgeStep edgeStep, boolean mustAllSK) {
    Id[] edgeLabels = edgeStep.edgeLabels();
    Query query = GraphTransaction.constructEdgesQuery(source, edgeStep.direction(), edgeLabels);
    ConditionQuery filter = null;
    if (mustAllSK) {
        this.fillFilterBySortKeys(query, edgeLabels, edgeStep.properties());
    } else {
        filter = (ConditionQuery) query.copy();
        this.fillFilterByProperties(filter, edgeStep.properties());
    }
    query.capacity(Query.NO_CAPACITY);
    if (edgeStep.limit() != NO_LIMIT) {
        query.limit(edgeStep.limit());
    }
    Iterator<Edge> edges = this.graph().edges(query);
    if (filter != null) {
        ConditionQuery finalFilter = filter;
        edges = new FilterIterator<>(edges, (e) -> {
            return finalFilter.test((HugeEdge) e);
        });
    }
    return edgeStep.skipSuperNodeIfNeeded(edges);
}

Example 7 with Query

use of com.baidu.hugegraph.backend.query.Query in project incubator-hugegraph by apache.

the class HugeGraphStep method makeQuery.

private Query makeQuery(HugeGraph graph, HugeType type) {
    Query query = null;
    if (this.hasContainers.isEmpty()) {
        // Query all
        query = new Query(type);
    } else {
        ConditionQuery q = new ConditionQuery(type);
        query = TraversalUtil.fillConditionQuery(q, this.hasContainers, graph);
    }
    query = this.injectQueryInfo(query);
    return query;
}

Example 8 with Query

use of com.baidu.hugegraph.backend.query.Query in project incubator-hugegraph by apache.

the class HugeGraphStep method verticesCount.

private long verticesCount() {
    if (!this.hasIds()) {
        HugeGraph graph = TraversalUtil.getGraph(this);
        Query query = this.makeQuery(graph, HugeType.VERTEX);
        return graph.queryNumber(query).longValue();
    }
    return IteratorUtils.count(this.vertices());
}

Example 9 with Query

use of com.baidu.hugegraph.backend.query.Query in project incubator-hugegraph by apache.

the class HugeGraphStep method vertices.

private Iterator<E> vertices() {
    LOG.debug("HugeGraphStep.vertices(): {}", this);
    HugeGraph graph = TraversalUtil.getGraph(this);
    // g.V().hasId(EMPTY_LIST) will set ids to null
    if (this.ids == null) {
        return QueryResults.emptyIterator();
    }
    if (this.hasIds()) {
        return TraversalUtil.filterResult(this.hasContainers, graph.vertices(this.ids));
    }
    Query query = this.makeQuery(graph, HugeType.VERTEX);
    @SuppressWarnings("unchecked") Iterator<E> result = (Iterator<E>) graph.vertices(query);
    return result;
}

Example 10 with Query

use of com.baidu.hugegraph.backend.query.Query in project incubator-hugegraph by apache.

the class HugeVariables method queryAllVariableVertices.

private Iterator<Vertex> queryAllVariableVertices() {
    GraphTransaction tx = this.params.graphTransaction();
    Query query = this.createVariableQuery(null);
    Iterator<Vertex> vertices = tx.queryVertices(query);
    return vertices;
}