mongodb – jakarta.persistence.PersistenceException: No Persistence provider for EntityManager named Mdb (ktor)

I’m trying to create a JPA in Ktor that can access MySQL and MongoDB using the same application. The MySQL part is working fine. But I’m unable to connect with mongoDb. I’m getting the error message jakarta.persistence.PersistenceException: No Persistence provider for EntityManager named Mdb It is unable to detect the MongoDB persistence provider. I’m attaching … Read more

java – No Persistence provider for EntityManager named SpringMVC

I keep getting this error ( No Persistence provider for EntityManager named SpringMVC) even though it seems everything is correct I have a controller class that inserts a username and password into the DB. It uses an instance of another class named LoginService to do this. Here is the class below package com.springmvctim.controller; import java.io.IOException; … Read more

What is JPA? Introduction to the Jakarta Persistence API

As a specification, the Jakarta Persistence API (formerly Java Persistence API) is concerned with persistence, which loosely means any mechanism by which Java objects outlive the application process that created them. Not all Java objects need to be persisted, but most applications persist key business objects. The JPA specification lets you define which objects should … Read more

Data Insertion and Data Persistence in a Vector Database

Data Insertion and Data Persistence in a Vector Database. In the previous post in the Deep Dive series, we have introduced how data is processed in Milvus, the world’s most advanced vector database. This article will examine the components of data insertion, illustrate the data model in detail, and explain how data persistence is achieved … Read more

Implementing React Redux Store With Persistence | by E.J. Ozyazgan | Apr, 2022

Centralized app state storage with persistence Photo by Tim Evans on Unsplash React Redux is a centralized state that allows you to decouple your state from individual components. This allows you to easily share and sync app state across components removing the need for unnecessary state chains. In this article, I will cover the following … Read more