| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.atlas.repository.graphdb.titan1; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.atlas.repository.graphdb.AtlasEdge; |
| import org.apache.atlas.repository.graphdb.AtlasEdgeDirection; |
| import org.apache.atlas.repository.graphdb.AtlasVertex; |
| import org.apache.atlas.repository.graphdb.AtlasVertexQuery; |
| |
| import com.thinkaurelius.titan.core.TitanVertexQuery; |
| |
| /** |
| * Titan 1.0.0 implementation of AtlasVertexQuery. |
| */ |
| public class Titan1VertexQuery implements AtlasVertexQuery<Titan1Vertex, Titan1Edge> { |
| |
| private Titan1Graph graph; |
| private TitanVertexQuery<?> query; |
| |
| public Titan1VertexQuery(Titan1Graph graph, TitanVertexQuery<?> query) { |
| this.query = query; |
| this.graph = graph; |
| } |
| |
| @Override |
| public AtlasVertexQuery<Titan1Vertex, Titan1Edge> direction(AtlasEdgeDirection queryDirection) { |
| query.direction(TitanObjectFactory.createDirection(queryDirection)); |
| return this; |
| |
| } |
| |
| @Override |
| public Iterable<AtlasVertex<Titan1Vertex, Titan1Edge>> vertices() { |
| Iterable vertices = query.vertices(); |
| return graph.wrapVertices(vertices); |
| } |
| |
| @Override |
| public Iterable<AtlasVertex<Titan1Vertex, Titan1Edge>> vertices(int limit) { |
| Preconditions.checkArgument(limit >=0, "Limit should be greater than or equals to 0"); |
| Iterable vertices = query.limit(limit).vertices(); |
| return graph.wrapVertices(vertices); |
| } |
| |
| @Override |
| public Iterable<AtlasEdge<Titan1Vertex, Titan1Edge>> edges() { |
| Iterable edges = query.edges(); |
| return graph.wrapEdges(edges); |
| } |
| |
| @Override |
| public Iterable<AtlasEdge<Titan1Vertex, Titan1Edge>> edges(int limit) { |
| Preconditions.checkArgument(limit >=0, "Limit should be greater than or equals to 0"); |
| Iterable edges = query.limit(limit).edges(); |
| return graph.wrapEdges(edges); |
| } |
| |
| @Override |
| public long count() { |
| return query.count(); |
| } |
| |
| |
| } |