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Questions tagged [kundera]

Kundera is a JPA 2.1-compliant object-datastore mapping library for NoSQL datastores.

The idea behind Kundera is to make working with NoSQL databases drop-dead simple and fun. Kundera is being developed with following objectives:

  1. To make working with NoSQL as simple as working with SQL
  2. To serve as JPA-compliant mapping solution for NoSQL datastores.
  3. To help developers, forget the complexity of NoSQL stores and focus on the domain model.
  4. To make switching across data-stores as easy as changing a configuration.

Project Location: https://github.com/impetus-opensource/Kundera

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Where do I put META-INF in Eclipse?

I'm using the Kundera tutorial at https://github.com/impetus-opensource/Kundera/wiki/Getting-Started-in-5-minutes. Eclipse does not find it when I create a folder META-INF at the project root and place persistence.xml in it. I did a quick search and…
user1258361
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About Java Cassandra Client, which one is better? How about CQL?

I am trying to develop application using Hive as the Database, and then I also find noSQL solutions as an alternative to it. Now decided to develop using Cassandra, my next problem is about what client should I use? which one is better, Hector -- a…
fahmi
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Beginning Cassandra -- Use Kundera? Something else?

We are in the process of getting our feet wet with Cassandra. None of us have any experience with this particular platform, but are experienced developers with JavaEE, JPA, etc. I came across the Kundera library that provides a JPA implementation…
Shadowman
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Datastax transport exception error writing

I have a java API application which connects to cassandra instance. My cassandra instance is hosted on google cloud platform. When I run the program in my IDE, it works fine and is able to connect to the cassandra instance. However when I deploy the…
zakSyed
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OneToMany with @EmbeddedId and kundera

I have two class and I want to use OneToMany relation with EmbeddedId (Im working with kundera framework) my sensor entity class: public class SensorEntitie implements Serializable { @EmbeddedId private CompoundKey key; @Column …
h.zak
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Neo4J Performance Benchmarking

I have created a basic implementation of high level client over Neo4J (https://github.com/impetus-opensource/Kundera/tree/trunk/kundera-neo4j) and want to compare its performance with Native neo4j driver (and maybe SpringData too). This way I would…
Amresh
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How to configure Play! framework project to use kundera with Cassandra

I am using Play! 2.0 and have problems trying to use Cassandra database. How can I configure the properties of application.conf file to use a high level client like Kundera. Do I have to create a persistence.xml file on the conf/META-INF folder? I…
guilhermerama
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What is the difference between Hibernate OGM and Kundera

I am evaluating what might be the best framework option between kundera and Hibernate OGM. My Situation: Existing project uses hibernate ORM for contacting Mysql data store. Now i want to read/write to cassandra(2.1.9) data store in the same…
Prabhath
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Simple use case with Kundera and MysQL

I'm new in kundera. My usecase is with Kundera and MySQL. I'm saving an entity using spring's CrudRepository. ID in that entity is AUTO generated. Kundera is saving that object successfully in DB. but returning wrong ID. and if I'm using that Id to…
user3778893
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Configuring Kundera with HBase

I currently have an HBase/Hadoop cluster running without issues, and I am fairly familiar with these products. I recently heard about Kundera, and it looks to be a very powerful tool that I would like to use. However, I cannot seem to find any…
mdepalma
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Cassandra vs logging activity

I'm using Cassandra with Kundera. My question is easy... Is any way to log all queries / request to Cassandra ? I'd like to know what exactly happens on server site :) Regards Tom
tomekkup
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Java ORMs on NoSQL DB like HBase

I have recently started getting familiarized with NoSQL (HBase). I am definitely a noob. I was investigating about ORMs and high level clients which can be used on HBase and came across a few. Some ORM libraries like Kundera are providing SQL like…
Sachin Kulkarni
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I did a mvn install to kundera. I want to add the installed jar to another maven project

Prefix: I'm very new to maven so I am open to "your doing it wrong" answers. I want to build a kundera project with MongoDB as the backend. I tried these directions but ended up with a kundera without the Document class. I was trying this tutorial…
Justin Dearing
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Kundera - Cassandra Replication Factor using EntityManagerFactory

I have an application which uses Kundera to generate tables from objects. I want to change Cassandra Replication factor. I use EntityManagerFactory separately to interact with the database for initializing, persisting records, etc. I know we can…
Anushila Dey
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Wildfly deployment error in Linux with Spring Framework

I have been developing a web rest service with Spring framework supported by Kundera API for cassandra database. deployed in Wildfly runtime environment in Eclipse IDE. I have externalised the persistence.xml and other property files in…
Rama Subramanian
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