I want to perform aggregation using multiple criteria. The problem is that I don’t know how to pass multiple criteria. Do I declare multiple Match operation like below? And if yes, then how do I pass them to the aggregation method? I thought that it should be possible to create a MatchOperation that adh…
Tag: mongodb
Insert embeded document without reading whole document – spring, mongo
I have this factory collection : @Document(collection = “factory”) public class Factory { Private List products; } which embeds the Product as products. When I have to add a …
Regex query in spring boot mongoDB on integer
My data schema in mongoDB { } I want to query on itemId such that if (In my database itemId is (1,2,12 , 13 , 15 27) ) if i search for itemId 1 then it fetch data start from 1 mean fetch data of itemId(1,12,13,15) if i am not pass itemId then fetch whole data. Please help me thanks
Check the index creation progress in mongo DB using java driver
I have around 10 millions of data in MongoDB. There is a requirement to add a new compound index. I used the following code to create the index. Using ensureIndex with option creation in background. My question is how do I track the index creation progress. There are other sets of operations I need to do afte…
How to add querydsl-mongodb to Spring Boot Gradle 5.6.1 project
I am trying to create dynamic query to a mongo database from spring boot gradle project. My gradle version: 5.6.1 Here is my build.gradle file: My application.properties file: Problem is: Q classes are not generating for my Documents. Any suggestion welcome. Thanks. Answer I made it working by adding both @Do…
Spring boot Mongo DB .yml configuration
When I use MySQL and hibernate for spring boot, I use below configuration in .yml file If it is mongoDB instead of MySQL and hibernate how does it change? Answer The mongodb properties are all prefixed with spring.data.mongodb. For user property you would use The list of available mongodb properties are here:…
Connect Spring MVC with aws documentDB
I’m using mongoDB with aws ec2 instance it’s working fine and I’ve moved mongoDB to aws documentDB, So i’m not able to connect documentDB with same code, So any one can u please help me if you have idea. Here is my connection code in Spring MVC: Spring, Hibernet and mongoDB version: sp…
MongoDB how to count array elements with Java driver
I need my application to count the size of an array foos inside a document using Java driver 3.8. I know I can do this with the shell but I have no idea of how to do this with java, because the only method producing a $size operator I found is Filters.size(String fieldName, int size) that is meant to look
Spring Data MongoDB 4.0 transactions support
MongoDB 4.0 are going to introduce transactions support with ACID guarantees. Does Spring Data MongoDB already supports the transactions in MongoDB and if no, when this awesome feature will be available. I really need it, taking into account the following issue – MongoDB schema design in order to suppor…
How to add to an existing MongoDB Bson Filter in Java
I’m using MongoDB 3.6.3 and the 3.6.0 Mongo & Bson drivers for Java. Given the following filter: I need to conditionally add another field to filter, effectively making it: Is there a way to do this by appending that field to filter, or do I have to create the filters separately? eg. Answer Filters.…