neo4j

How to start neo4j with Visual Studio 2015?

由 江枫思渺然 提交于 2019-12-13 04:26:14
问题 I am working with Neo4j and want to integrate it with Visual Studio 2015. At present, I have installed Neoj desktop version in my system. I have an issue regarding Neo4j. Each time I open my application, I have to open Neo4j Desktop and start it. Is there any way available to make neo4j start automatically when I open my application? If yes, what is it? Any references? 来源： https://stackoverflow.com/questions/58110521/how-to-start-neo4j-with-visual-studio-2015

Match Command in Neo4j

由 左心房为你撑大大i 提交于 2019-12-13 04:18:36
问题 I have two graphs with some nodes with similar labels. If I want to fetch part of a graph using match command,then do I need to specify the graph name. For eg., MATCH (dom)<-[:headedby]-(Hd) RETURN count (Hd.name); I have (dom)<-[:headedby]-(Hd) relation in both the graphs, so which data does it fetch? I'm finding that it is giving me the aggregate count of both the graphs. Please let me know if I have to pass the graph alias also with the match command and how to do it. Thanks in advance.

How to view my database from the neo4j browser?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-13 04:17:41
问题 I am new to neo4j. I have created a java project in Eclipse to create a neo4j database and some nodes in it. I am seeing the database directory getting created in my workspace folder. But how do i view it on the neo4j browser? Here is the example code i used : package com.neo4j.demo; import org.neo4j.graphdb.GraphDatabaseService; import org.neo4j.graphdb.Node; import org.neo4j.graphdb.Relationship; import org.neo4j.graphdb.Transaction; import org.neo4j.graphdb.factory.GraphDatabaseFactory;

How to build Parameterized Cypher Query in Java Application Code?

由 不羁岁月 提交于 2019-12-13 04:15:57
问题 The idea behind parametrized queries is to re-use (cache) execution plans. If a node label or a relationship type do not vary, the execution plan would be the same at all, thus benefits can be achieved of execution plan caching. Currently, I'm my complete Cypher Query is built using Java String Building. Instead of creating the entire Cypher Query using String building I want to pass the values of the Properties as Parameter Values along with Property Names as Parameters or not. I need sample

Neo4J - Cypher: shortest path between multiple nodes

由 情到浓时终转凉″ 提交于 2019-12-13 04:15:32
问题 Let's say we have 4 nodes: {id:1, name:"one"} {id:2, name:"two"} {id:3, name:"three"} {id:4, name:"four"} Suppose node 1 is linked to node 2, node 2 to 3, 3 to 4 so the result would be something like: (1)-->(2)-->(3)-->(4) How would I be able to get the shortest path between multiple given nodes in any given order? A few examples: findShortestPath(2,4,3) should result in: (2)-->(3)-->(4) findShortestPath(3,1) should result in: (1)-->(2)-->(3) findShortestPath(4,1) should result in: (1)-->(2)-

spring neo4j getting exception

由 喜夏-厌秋 提交于 2019-12-13 04:14:52
问题 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'neo4jTemplate' defined in class org.springframework.data.neo4j.config.Neo4jConfiguration: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.data.neo4j.support.Neo4jTemplate org.springframework.data.neo4j.config.Neo4jConfiguration.neo4jTemplate() throws java.lang.Exception] threw exception;

Gremlin on Neo4j 2.2.7

由 怎甘沉沦 提交于 2019-12-13 04:01:04
问题 I need to incorporate the possibility of sending Gremlin scripts to my Neo4j 2.2.7 DB so I tried to install the thinkaurelius neo4j plugin by using one of the prebuilt releases. Unfortunately I guess those releases were built for older Neo4j versions (2.1.6) and, as a result, I got this error when I tried to start Neo4j from my Windows machine with Java 8: Starting Neo4j Server failed: javax.servlet.ServletException: org.neo4j.server.web.NeoServletContainer-e1dd969@ae4c07fc==org.neo4j.server

Neo4jPhp too slow

由 ☆樱花仙子☆ 提交于 2019-12-13 03:58:09
问题 Today i have written first basic program for Neo4j from PHP. This was basically done to check out if we could use Neo4j in our new project from PHP by using Neo4jPhp. https://github.com/jadell/neo4jphp here is my code <!DOCTYPE html> <html> <body> <h1>My first PHP page</h1> <?php include 'neo4jphp.phar'; echo "Hello World!"; // Connecting to the default port 7474 on localhost $client = new Everyman\Neo4j\Client(); $queryString = "MATCH (n)". "RETURN n"; $query = new Everyman\Neo4j\Cypher

'ORDER BY' results per row in cypher query(Neo4j)

由 时光怂恿深爱的人放手 提交于 2019-12-13 03:54:55
问题 This question is a follow on to the question here With 2 answers for that Now I need to modify this query to return those items related to this HashTag , order by createdDate (as all those items have createdDate property). I've written this query: MATCH (r:RateableEntity)<-[:TAG]-(h:HashTag:Featured) WITH h, COUNT(h) AS Count ORDER BY Count DESC SKIP 2 LIMIT 3 WITH h, Count, h.tag as Name, [(h)-[:TAG]->(m:RateableEntity {audience: 'world'}) | m][..3] AS Items UNWIND Items as row RETURN row,

JQassistant rule for TestMethods with lambda expressions and consumers asserts

由 蓝咒 提交于 2019-12-13 03:47:31
问题 Our project has few Unit Tests in which the asserts are passed as a lambda or consumer to the test class. Example as below. How to write a cypher rule constraint such the asserts are identified and the method is not flagged as without assert. Currently using junit4:TestMethodWithoutAssertion Test Method : @Test public void testSuccessfulIdempotency(){ transportConsumerFlow.accept(Mockito.mock(TransRequest.class), (t)->{ assertEquals(t, expectedResponseMessage); }); } In the sample above, the
订阅 neo4j