In MongoDB, using Java how can I query to find documents which exceeds the 15mb size in database or collection Answer Try this one:
Tag: mongodb
How do I retrieve particular List of element from MongoDB Using findById from another List => SubList from MainList?
How To Retrieve this list: When passing this list [id]: Answer I just figured out an answer for my question and it’s as follows: In the mongo repository just declare a custom find method: Then use it as a normal find method => [query] in your business logic layer and controller layer.
Mongo Replicaset monitoring replaces hostnames with IP and leads to failed hostname verification
we have a problem with the mongo java driver and the monitoring thread. We are running a 3 server replicaset and connect our spring boot microservices by using the hostnames. mongodb://<username>:<password>@A:27017,B:27017,C:27017/?tls=true Up until now we always used the non-reactive mongo driver…
Java Date to MongoDB date with Gson
Introduction I am currently working on a project that regularly saves several java objects to a MongoDB database. This object contains a Date. Problem The conversion of java Date to Json Mongo give this: But this format does not conform with MongoDB Date. MongoDB is considered as a string instead of a Date. A…
How to query mongodb with query Builder in java?
I need to make a query in java to MongoDB, how could I do it with QueryBuilder, this is my query: By the way, if anyone knows where I can find documentation to make these queries, I would appreciate it. Answer You should Refer this documentation Create a MongoCollection object. Create a list to have aggregate…
MongoDB – Update parts of object
I have the collection that stores documents per some execution Flow. Every Process includes “processes” and each process includes steps. So I end up with a ‘flows’ collection that has documents that look like this: A couple of notes here: Each flow contains many processes Each process …
MongoDB how to test locally in Java a MongoDB database, like H2 with sql database?
I’m developing a program that use MongoDB database but I’m asking if it is possible to use an internal database for test like H2 when doing SQL through Java? Answer You can try to use Testcontainers Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instan…
Local Mongo DB Container Access with Kubernetes Service Endpoint in K3s is not working
Earlier I used earlier kubeadm to create an endpoint from my local MongoDB which is running in a Docker container, now we have switched from kubeadm to k3s because it is a lot of easier to use. Now we are not able to use the MongoDB endpoints, it is reachable inside the Kubernetes cluster. I will share the ne…
How to get single field in mongodb query?
I have data like this: i want to show one field like this base on book -> chapter_no -> sub_no in mongodb query. Answer $match $unwind $unwind $match $replaceRoot mongoplayground
MongoDB Extract document
I have this Json: I would like to filter exclusive for paymentType.type equals “PILOT” and limits equals type equals “COMBAT_HOURS”. This is the result I would like to receive. How to extract the document to reach this result? Answer Query map paymentTypes if paymentType= PILOT, filter…