问题在OrientDb与蓝图创建边缘/ TinkerPop有关(Issue with creatin

我最近在努力学习OrientDb现在，我有点熟悉OrientDb控制台本身，我在继续使用蓝本写一个简单的java程序来创建一个图表。 我想他们之间创建几个顶点和边，但是虽然我的顶点创建成功，我无法看到我的边缘，除非我呼吁创建方法的两倍。 如果我注释掉调用之一，没有边缘都被创建。 我试图通过增加睡眠时间检查任何时间问题，但似乎没有任何帮助。

我尝试使用控制台来检查，我看到创建的顶点而不是边缘。 我运行1.7 RC-1的东方。

这里是我试图让工作示例代码：

public class OrientPrototype {
    static OrientGraph graph = new OrientGraph("remote:localhost/Tinker", "admin", "admin");

    public static void main( String[] args ) {

        removeAllExistingVerticesAndEdges();

        createSimpleGraph();

        displayAllVertices(getAllVertices("Person"), "name");

        displayAllEdges(getAllEdges("Friend"));
    }

    private static void removeAllExistingVerticesAndEdges() {
        for (Vertex v : graph.getVertices())
            v.remove();

        for (Edge e : graph.getEdges())
            e.remove();
    }

    private static void createSimpleGraph() throws InterruptedException {

        createPersons();

        createFriendships();
        //createFriendships();
    }

    private static void createPersons() {
        String [] persons = {"John", "Jack", "Ryan"};

        if (graph.getVertexType("Person") == null)
            graph.createVertexType("Person");

        for (int i = 0; i < persons.length; i++) {
            try {
                Vertex v = graph.addVertex("class:Person");
                v.setProperty("name", persons[i]);
                graph.commit();
            }
            catch (Exception e) {
                graph.rollback();
                System.out.println("Error while creating the persons. Had to roll back");
            }
        }       
        System.out.println("Done creating vertices...");
    }

    private static void createFriendships() {
        if (graph.getEdgeType("Friend") == null) {
            graph.createEdgeType("Friend");
            graph.commit();
        }

        Map<String, Vertex> vertices = new HashMap<String, Vertex>();
        for (Vertex v : graph.getVertices())
            vertices.put(v.getProperty("name").toString(), v);

        try {
            graph.addEdge("class:Friend", vertices.get("John"), vertices.get("Jack"), "is friend");
            graph.addEdge("class:Friend", vertices.get("Jack"), vertices.get("Ryan"), "is friend");
            graph.addEdge("class:Friend", vertices.get("Ryan"), vertices.get("John"), "is friend");


            graph.commit();
            System.out.println("Done creating edges...");

        }
        catch (Exception e) {
            graph.rollback();
            System.out.println("Error while creating the edges between persons. Had to roll back");
        }
    }

    private static Iterable<Vertex> getAllVertices(String classname) {
        return graph.getVerticesOfClass(classname);
    }

    private static void displayAllVertices(Iterable<Vertex> it, String propertyName) {
        System.out.println("The vertices in the graph are:");
        for (Vertex v: it)
            System.out.println(v + " " + v.getProperty("name"));
    }

    private static Iterable<Edge> getAllEdges(String classname) {
        return graph.getEdgesOfClass(classname);
    }

    private static void displayAllEdges(Iterable<Edge> it) {
        System.out.println("The edges in the graph are:");
        for (Edge e: it)
            System.out.println(e);
    }
}

我不相信，我做错了什么，因为当我看控制台OrientDb，我没有看到任何边缘类朋友架构选项卡，当我做出createEdge方法单一通话？ 这些做第二个电话后出现不过。 而且我也看到传入和传出链接到Person类，当我运行在Person类选择从人查询。 这些输入和输出链路只出现当我打电话的createEdge方法至少一次。

任何帮助是极大的赞赏。 还附上从我的Maven POM文件的依赖关系，如果它是有帮助：

<dependencies>
    <dependency>
        <groupId>com.tinkerpop.blueprints</groupId>
        <artifactId>blueprints-orient-graph</artifactId>
        <version>2.5.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.tinkerpop.gremlin</groupId>
        <artifactId>gremlin-java</artifactId>
        <version>2.5.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.orientechnologies</groupId>
        <artifactId>orient-commons</artifactId>
        <version>1.7-rc1</version>
    </dependency>
    <dependency>
        <groupId>com.orientechnologies</groupId>
        <artifactId>orientdb-core</artifactId>
        <version>1.7-rc1</version>
    </dependency>
    <dependency>
        <groupId>com.orientechnologies</groupId>
        <artifactId>orientdb-client</artifactId>
        <version>1.7-rc1</version>
    </dependency>
    <dependency>
        <groupId>com.orientechnologies</groupId>
        <artifactId>orientdb-object</artifactId>
        <version>1.7-rc1</version>
    </dependency>
    <dependency>
        <groupId>com.orientechnologies</groupId>
        <artifactId>orientdb-enterprise</artifactId>
        <version>1.7-rc1</version>
    </dependency>
</dependencies>

Answer 1:

只是收尾这里...回答是小鬼用户邮件列表：

https://groups.google.com/forum/#!topic/gremlin-users/xUNeuJkPyUo

基本概括给定卢卡的回应...首先关闭轻巧的边缘：

alter database custom useLightweightEdges=false

然后，请务必使用新OrientDB依赖性：

<dependency>
    <groupId>com.orientechnologies</groupId>
    <artifactId>orientdb-graphdb</artifactId>
    <version>1.7-rc1</version>
</dependency>

文章来源: Issue with creating edge in OrientDb with Blueprints / Tinkerpop