spring-data-neo4j

问题 We are using spring-data-neo4j with repository methods and annotated queries. Formerly, we used SDN with a rest connection to a standalone server. Performance was very poor, though, so we decided to use SDN with an embedded neo4j instance. But that does not work as expected. Here are some classes The node entity import java.util.Set; import org.codehaus.jackson.annotate.JsonIgnore; import org.neo4j.graphdb.Direction; import org.springframework.data.neo4j.annotation.Fetch; import org

问题 I have experienced that when I delete some node (which may have relationships) or relationship in neo4j using cypher query, it do not give anything in return like in mysql db. is there any way which can give the confirmation about the number of affected node (like number of node deleted) in cypher ? 回答1: Below query works (I have tried this with neo4j 1.8.1 and 1.9.3 both community and enterprise version) START root=node(1) MATCH root-[r:?]->() WHERE root.Id=12 DELETE r,root return count(root

问题 I have experienced that when I delete some node (which may have relationships) or relationship in neo4j using cypher query, it do not give anything in return like in mysql db. is there any way which can give the confirmation about the number of affected node (like number of node deleted) in cypher ? 回答1: Below query works (I have tried this with neo4j 1.8.1 and 1.9.3 both community and enterprise version) START root=node(1) MATCH root-[r:?]->() WHERE root.Id=12 DELETE r,root return count(root

问题 This is similar to what is discussed at Unable to use two Neo4j Instances with Spring boot/Spring data neo4j but I don't have two databases. I have downloaded the spring-data neo4j sample java application from the git repo and want to execute a dynamic query instead of executing a static query via repository interface. I am facing an issue of null transaction manager. Here's my interface : public interface SearchRepositoryCustom { Iterable<Movie> searchByCriteria(); } Here's my custom repo

问题 I imported the cineast maven project to eclipse, but I face a configuration problem... cvc-complex-type.4: Attribute 'base-package' must appear on element 'neo4j:config' Below are the configuration files which have this error. ApplicationContext.xml <?xml version="1.0" encoding="UTF-8" standalone="no"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:neo4j="http

问题 I imported the cineast maven project to eclipse, but I face a configuration problem... cvc-complex-type.4: Attribute 'base-package' must appear on element 'neo4j:config' Below are the configuration files which have this error. ApplicationContext.xml <?xml version="1.0" encoding="UTF-8" standalone="no"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:neo4j="http

问题 how to store location and time stamp data generated by the buses every 2 minutes on different routes using Neo4j. Route 1 : A-> B-> C-> D-> C-> B-> A [route created in neo4j] how to achieve below time-stamp storing? 8:01 8:10 8:25 9:10 9:xx xxx xxx x:x xx:xx xx:xx xx:x x:x X:X Route 2: G-> G-> H-> I-> J-> K-> L 10:01 10:10 10:25 11:10 12:xx xxx x:x xx:xx xx:xx xx:x x:x X:X In rdbms, i store the time with each bustop as column id. How to do this neo4j. Stuck with my college project, any help

问题 org.springframework.data:spring-data-neo4j:2.2.1.RELEASE depends on neo4j-cypher-dsl:org.neo4j:1.9.M04 but I am unable to find this dsl artifact in any public mvn repositories. Any idea on where to get this jar? 回答1: Found this in neo4j repo here http://m2.neo4j.org/content/repositories/releases/org/neo4j/neo4j-cypher-dsl/1.9.M04/ 来源： https://stackoverflow.com/questions/16653128/unable-to-find-neo4j-cypher-dsl-version-1-9-m04-anywhere

问题 I have a Spring Data Repository interface that gets a collection of nodes from by database using a custom query: Repository Method: @Query ("START r = node({0}) MATCH r <-[:AUTHOR]- m RETURN m") public Page<Object> findObjectById (long objectId,Pageable pageable); Method call custRepository.findObjectById (4,new PageRequest(0, 5)); This return a collection of Objects, however the Page information is incorrect. There is enough data in database for me to get several pages of data. The first

问题 We have selected neo4j as the DB for our web application. The user has a large number of relations and connected nodes. As of now there are about 20 relations for a user. One of the features is a newsfeed feature. If i want to delete a user completely, is the cypher query the best way to delete or is there any other alternative? Since we are still planning to add new features, the relationships and nodes connected to the user also will increase. So if we use cypher query, the query has to be