List/Grid Tag Archives: NoSQL

mongodb-logo

Optimistic locking retry with MongoDB

In my previous post I talked about the benefit of employing optimistic locking for MongoDB batch processors. As I wrote before, the optimistic locking exception is a recoverable one, ...
java-interview-questions-answers

Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 2

In this post we will focus on CDI and Servlet 3.0. You can see part 1 here. Let’s start with CDI. When I started writing the post that originated this serie, I was not thinking in ...
mongodb-logo

MongoDB optimistic locking

When moving from JPA to MongoDb you start to realize how many JPA features you’ve previously taken for granted. JPA prevents “lost updates” through both pessimistic and optimistic ...
redis-logo

Using Sorted Sets with Jedis API

In the previous post we started looking into Jedis API a Java Redis Client. In this post we will look into the Sorted Set(zsets). Sorted Set works like a Set in the way it doesn’t ...
redis-logo

Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 1

In this post we will build a simple user crud. The data will be stored in Redis. To interact with Redis we will use Jedis library. CDI for Depedency Injection and Servlet 3.0 for the ...
apache-cassandra-logo

Crawling the Web with Cassandra and Nutch

So, you want to harvest a massive amount of data from the internet?  What better storage mechanism than Cassandra?  This is easy to do with Nutch. Often people use Hbase behind Nutch. ...
nosqlunit-logo

Getting Started With Jedis

Hi, these days I started looking into Redis. I’ve heard a lot about it so I decided to have a try. Redis is defined in its websites as “an open source, advanced key-value store. ...
software-development-2-logo

The 10 Most Popular DB Engines (SQL and NoSQL)

How to objectively measure the popularity of a DB engine? Good question! And there’s an Austrian company (Solid IT) who claims to have the answer. The company focuses on “Big Data ...
nosqlunit-logo

The Premature Return to SQL

In online communities, the NoSQL topic (much like the ORM topic) is a guarantee to stir emotions. Many emotions are stirred by evangelists on either side for ideological or marketing ...
couchbase-logo

Pagination with Couchbase

If you have to deal with a large number of documents when doing queries against a Couchbase cluster it is important to use pagination to get rows by page. You can find some information ...
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