All applications using Neo4j depend on drivers to execute statements to update or query data. Neo4j drivers are mostly built on the binary Bolt protocol. Official drivers exist for Java, JavaScript, .Net, Python, and Go and more. Other languages (R, ...
I just found out about @EnableSpringDataWebSupport and already love the possibility to simply @PathVariable("id") Contact contact but 20 seconds after I refactored a Controller to use this awesome feature I came across the need to load an object to ...
Is there any mechanism to chain transactions when neo4j is in standalone mode. There’s a mechanism called causal chaining but that only works when neo4j is setup as a causal cluster, as per the documentation. My requirement is to keep the transaction...
We are running the enterprise edition on an AWS ubuntu EC2 server, it is a single instance and not a cluster, and has been long running (months) with no problems. We hare recently introduced a system health check which fires ever 30 seconds and toge...
I am struggling to get spring to return the path result for the query below. I cannot find any documentation detailing how spring data neo4j handles returning paths. Any advice would be much appreciated. public interface OccupationRepository extends ...
I have the following code which extracts the data from my table in the sql database which matches with id: Now I want to write this query into the neo4j cypher language in which nodes are created with the label voters, and properties of that node con...
After running the Cypher query to create a new node if it doesn't exist using MERGE clause, I want to check if the write-transaction is successful. How do I do that? Perhaps a status or code? I'm getting following as result from the tx.run statement ...
Hi, in cluster mode, I have a problem when I am doing a READ transaction following a WRITE transaction : the WRITE transaction is always done on LEADER node, but READ transaction will be done on either 2 FOLLOWERS, and as the replication is not done ...
Consider a class like this class A { ... @Relationship(type="RELATED_TO") List<B> bs; ... } Assume that we call session.save on an object "aInstance" of class A in OGM. Are PRE_SAVE events of all the saving objects (including aInstance, objects...
I have started a religious cult, and you can join! Many of you know about the passion and commitment that I have shown towards Neo4j over the years. It is an area of focus that has brought wonderful challenges and rewards, both on a professional and ...
Consider a class like this: class A { ... @Relationship(type="RELATED_TO") List<B> bs; ... } When saving an A, how can I perform some modifications to the "B"s before saving them? (Something like @Convert but for @Relationship not a simple attri...
@gerrit.meier, this might warrant a new topic but I'll give it a shot. What would be the best way, in your opinion, to hydrate related entities before calling save, to prevent removing information from those entities. For example, if a client provide...
I used CocoaPods to bring in Theo as a library. (Theo is a Swift driver for Neo4j) I made sample codes in Xcode to access Neo4j in Swift. It was build successfully, but seems to fail accessing database. Maybe the next line is wrong. let client = try ...
Hi! I'm a hobby genealogist and used neo4j with OGM for my bachelor thesis to build a genealogy application, supporting multiple database folders (which worked correctly) Because of the very good implementation of repositories (and custom queries) in...
Can someone show an example properties.yaml file? All I need are the basics: url, user, pw. Its not obvious to me how to set the profile. Thanks.
Hi, I want to know that what is the difference between findById(id,2) vs 2 db calls. which one is better in terms of performance.
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