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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

149 questions
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Spring property expansion generating QuerySyntaxException in Entity

I have a application with spring 3.1.0, hibernate 4.0 and jboss 7.1.1 Aim - Dynamic expansion of properties to load persistence unit . …
ip_x
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Issue with using reflection on glassfish v 3.1.2.2

I am trying to deploy and run a sample application over glassfish v 3.1.2.2. I am able to deploy it successfully. But somehow facing some issues while doing some process. It is related to reflection : Caused by:…
vivek mishra
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Using generic Object type in hbase using Kundera

I am using kundera to define my data model which will be stored in hbase. There is a class called "Task" which should have a generic type of submission like so: public class Task { ... Object submission; } The submission could be of any…
Sun
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DataNucleus / Kundera with HBase with ElementCollection - Unable to find the object with a null id

To start with, I use HBase 0.94.5 (also tried 0.92.2 with the same results). I have a situation like this: Variable class: @Entity @Table(name = "variable", schema = "keyspace@hbase-pu") public class Variable { @Id private String Id; …
The Cookies Dog
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JPA2 with HBase datastore using Datanucleus writing duplicate rows

I'm creating simple java web app that writes one row of data to HBase table via JPA2 (using Datanucleus) everything working except it writing 2 duplicate rows instead of just writing 1 row Results ROW …
Denis Murphy
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Sync 02 nodes in Cassandra

I have 02 nodes, one runs on 127.0.0.1 and another runs on 127.0.0.2 Will data that I add to my cluster will appear both on two nodes? As current, when I stop node 1, there is no similar data in the second node, it also throws some exceptions when I…
Xitrum
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Using Zookeeper + Play + Cassandra DB (via Kundera)

Have anyone tried using Play framework(2.0.4) application with connect to cassandra db via kundera? I want to implement Zookeeper on top of cassandra DB. Have anyone tried combining them before?
Xitrum
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Connect to Cassandra DB within Play framework by using Kundera

I tried using Kundera method but I have no idea where to put the persistence.xml, i tried putting it in conf/WEB-INF/ but when I tried running it said that "Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider…
Xitrum
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Kundera-rest Usage

I am using JPA2 entity annotations and Kundera for persistance. I want to expose the entities to a RESTful interface. I have understood that I can use kundera-rest to do it. I have also found an example "Kundera-Web-Examples" from github. My problem…
Stefanos Kalantzis
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com.impetus.kundera.utils.InvalidConfigurationException: Could not find any META-INF/persistence.xml file in the classpath

I am trying to deploy sample war file build using Kundera on jboss AS7.1.1.final. Here are the steps which I have followed: 1. created a module (com.impetus.kundera), here is module.xml
vivek mishra
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Restlet + mongoDB + Freemarker

We are making a web based application in Java that should be accessible to any device and so we zeroed in for Restlet for our REST based web service need. For UI we are thinking of Freemarker together with Twitter bootstrap and database will be…
user1353436
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Unable to run Kundera Sample application

I am unable to run a sample application using Kundera Sample. Exception: Exception in thread "main" javax.persistence.PersistenceException: invalid persistence.xml at…
user1314200
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Cassandra : javax.persistence.PersistenceException: InvalidRequestException(why:Undefined name)

I don't have kundera.ddl.auto.prepare" value="update" in my persistence.xml file; however, when I try to persisting an entity into Cassandra using Kundera API I get the following exception: javax.persistence.PersistenceException:…
muser
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Kundera Ehcache not working

I am running Kundera 2.8.1 . when i'm configuring ehcache in my persistence.xml its not being picked up. I have a ehcache-test.xml file configured in my classpath. On inspecting i'm finding that Kundera is not picking up the properties from…
user3089937
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