I am trying to make this Aggregation bellow using Spring Java, but it’s returning an Empty List on my console. This is working on MongoDB, but not on my spring application. This is my MongoDB Query: It’s return me 2 results: My Problem is when I do this using Mongo with Spring Java: My Repository …
Tag: java
Gson to append json object within an array in a json file in java
I am trying to store a game result in a JSON file. The results are stored when the game is over, and are supposed to be displayed afterwards in a table. I have this function that creates the game score and adds it to json file using GSON That method creates a JSON file that looks like this: The problem
How do I have to format my feeder csv file, to inject a list of string elements into my JSON request in Gatling?
I am having trouble adding a list of string id’s to my JSON request body! I tried many different formatting styles … but could not figure out how to get this to work in Gatling, using the JavaDSL. this is one of my csv formatting attempts to represent a list: here the code to feed my csv data into…
Event Listener in Firestore doesn’t see field updates in documents inside collection. Android, Java
I have next firestore scheme: collection “users” – document user_id – collection “trips” – document trip_id – collection “requests” – document request_user_id with fields: and boolean field <is_accepted> On one of my pages I want to liste…
Don’t know how to create ISeq from: Java.lang.Long
Doing some practice on recursion and map implementation to knock some rust off Clojure. I’m using lists only here so how am I trying to mix seq and non-seqable stuff? REPL: Answer Some errors: replace ‘(finished-set) with finished-set into adds elements from one collection to another, I think you&…
Time limit exceeded in hackerearth exercise
I’m trying to solve this exercise in HackerEarth. But I have an error of time limit exceeded. This is the code that I wrote : Answer Your solution is a little bit slow because of the bad implementation. I rewrote your solution in better implementation with the same logic and time complexity of your solu…
Apache PDFBox – vertical match between image and text position
I need help to achieve a mapping between text and image objects in a PDF document. As the first figure shows, my PDF documents have 3 images arranged randomly in the y-direction. To the left of them are texts. The texts extend along the height of the images. My goal is to combine the texts into “ImObj&#…
casting of js.executeAsyncScript output to Map
I want to cast the output of below script into Map<string,string> but it is showing “java.lang.String cannot be cast to java.util.Map”error. How can we cast that in map?? Answer I assume your response is in Json format. You can use Gson to convert the String to Map.
Java Gremlin union with project incompatible types error
I have such gremlin query which perfectly works in gremlin console: However same query fails in gremlin for java org.apache.tinkerpop:gremlin-core with such error: Incompatible equality constraint: Map<String, Object> and Map<Object, Object>. That is understandable because: valueMap returns GraphT…
Listener only for the first click on JTextField
Is there a java event for JTextField do like : if the cursor already was in the JTextField and MousePressed = do nothing if click on the JTextField for the first time = do things I have been used , MousePressed(java.awt.event.MouseEvent evt) but this not exactly what I want. thank you Answer You can implement…