Cassandra CLI is a useful tool for Cassandra administrators. It's a good example of how to implement a Cassandra client and CLI internals help us to develop custom Cassandra clients or even extend the CLI tool. In this article, author explores Cassandra CLI architecture model using JArchitect tool and CQLinq language to analyze its code base.
The SQL language has been evolving steadily over the last two decades. At the same time, the verbosity caused by the JDBC API in Java client code and the lack of first class SQL support within the Java language have led to the introduction of ORMs such as Hibernate, which was later standardised into JPA and the Criteria API.If SQL and JPA are diverging, where will our data interaction patterns go?
To help the user understand what they are seeing, developers often turn to bar and pie charts. But that only works for discrete data; when at the links between data other tools come into play. We asked Alexander Smirnov, creator of GraphX, to explain what graph visualization is and how it can be used.
Anatomy of a light-weight, lockless, inter-thread communication framework in Java. 17
This article summarizes the key takeaways and highlights from QCon San Francisco 2013 as blogged and tweeted by attendees.
On certain occasions you will need to build your own parser, eg if there is nothing standard that fits the bill. This article walks through the steps of building a high performance parser 7
We demonstrate how to build a RESTful API on top of CQRS systems. The result joins HTTP semantics and REST style with distributed computing concerns such as eventual consistency and concurrency. 4
Jazz Automation is a testing framework built to automate and speed up acceptance/functional testing for all types of web based systems or static websites and in any industry. 2
In this article, author talks about the need for change in predictive modeling focus and compares four types of data mining:algorithm mining, landscape mining, decision mining and discussion mining.
Sometimes memory profiling is better than execution profiling for finding execution hot spots. In this article Kirk Pepperdine talks through some indicators for determining when to use which profiler 7
This article will take you through creating a simple RESTful web service with Spring Boot and Aerospike, a distributed and replicated in-memory NoSQL database.