配置请求

全部查询方法均支持使用可选配置参数（RequestConfig或InsertRequestConfig）来自定义向数据库发出的请求。您可使用该参数指定各种设置，如图集名称、超时时间和主机，根据自身需求定制请求。

RequestConfig

RequestConfig用来定义向数据库发送非插入请求时所需的配置。

public class Main {
    public static void main(String[] args) {
        UltipaConfiguration myConfig = UltipaConfiguration.config()
            // URI 示例： .hosts("mqj4zouys.us-east-1.cloud.ultipa.com:60010")
            .hosts("192.168.1.85:60061,192.168.1.86:60061,192.168.1.87:60061")
            .username("<username>")
            .password("<password>");

        UltipaClientDriver driver = null;
        try {
            driver = new UltipaClientDriver(myConfig);
            Connection client = driver.getConnection();

            // 指定图集amz为目标图集并使用集群的主节点
            RequestConfig requestConfig = new RequestConfig();
            requestConfig.setGraphName("amz");
            requestConfig.setUseMaster(true);
        
            Response response = client.uql("find().nodes() as nodes return nodes{*} limit 10", requestConfig);
            List<Node> nodeList = response.alias("nodes").asNodes();
            for(int i = 0; i < nodeList.size(); i ++){
                System.out.println("node " + i + " is: " + nodeList.get(i).toJson());
            }
        } finally {
            if (driver != null) {
                driver.close();
            }
        }
    }
}

RequestConfig包含如下字段：

InsertRequestConfig

InsertRequestConfig用来定义向数据库发送插入或删除数据请求时所需的配置。

public class Main {
    public static void main(String[] args) {
        UltipaConfiguration myConfig = UltipaConfiguration.config()
            // URI 示例： .hosts("mqj4zouys.us-east-1.cloud.ultipa.com:60010")
            .hosts("192.168.1.85:60061,192.168.1.86:60061,192.168.1.87:60061")
            .username("<username>")
            .password("<password>");

        UltipaClientDriver driver = null;
        Connection client;
        try {
            driver = new UltipaClientDriver(myConfig);
            client = driver.getConnection();

            // 指定图集test为目标图集，并将插入模式设置为OVERWRITE
            InsertRequestConfig insertRequestConfig = new InsertRequestConfig();
            insertRequestConfig.setGraphName("test");
            insertRequestConfig.setInsertType(Ultipa.InsertType.OVERWRITE);
        
            List<Node> nodeList = new ArrayList<>();
            Node node1 = new Node();
            node1.setSchema("client");
            node1.setID("CLIENT00001");
            nodeList.add(node1);
            Node node2 = new Node();
            node2.setSchema("card");
            node2.setID("CARD00004");
            nodeList.add(node2);
          
            client.insertNodesBatchAuto(nodeList, insertRequestConfig);
        } finally {
            if (driver != null) {
                driver.close();
            }
        }
    }
}

InsertRequestConfig包含如下字段：