Java User Groups
It used to be that Sunday was a fairly relaxing day for most. Not anymore! This year, Sunday is already overcrowded with many more events and sessions than one can possibly attend, as the JavaOne 2013 Content Catalog Sunday entries demonstrate. Sunday's activity can be divided into four categories...
My company uses a large number of software applications to support all aspects of its business.
These software applications are either "bought" or "built".
The portions of the company that cannot be supported by purchased software are
supported by custom developed, in-house, applications.
A variety of technologies are used to create and build these custom applications.
The Java framework has been...
Cassandra is an open source column oriented nosql database. It was born to solve problems with persistence and high performance. Cassandra has been used by many companies in many industries for a wide variety of use cases. In addition it has a strong and thriving community supporting it.
We will be having a special series of events throughout Brazil in the first week of September. Each day...
Grails in Action, Second Edition MEAP Update + 44% off
esProc is the good assistant to reporting tools and the expert in report data source computation.
Spring is most popular Java framework and has the Spring Data plug-in, its goal is do a high level layer among Java application and information center such SQL, NOSQL, bigdata, etc. Know more how it works Spring Data on Cassandra.
In the recently completed Java.net poll on Continuous Integration (CI), a majority of voters declared that they don't know what Continuous Integration is. A total of 280 votes were cast in the poll...
Over the next few months, I will be running a new advanced TDD/BDD workshop in cities around Australia, including Sydney, Melbourne, Perth, Canberra and Brisbane (I also travel internationally a lot, so if you are interested but not in Australia, get in touch!). Here is the outline of the new course:
Learn TDD/BDD from the author of BDD in Action
Test Driven Development (TDD) is an...
"Clojure changes the way you think" from The Joy of Clojure, Second Edition by Michael Fogus and Chris Houser + 45% off
This article is about three methods of data processing.
"Serializing Data with Protocols" & "Apache Thrift IDL" are new to The Programmer's Guide to Apache Thrift + 45% off
“Artifact assembly & publishing” is new to Gradle in Action + 45% off
"Using State in Actors" is new to Akka in Action + 45% off
According to research, most complex report development work can be simplified by performing the data source computation in advance. For example, find out the clients who bought all products in the given list, and then present the details of these clients.
In developing such reports, it is the “computation” part and not the “presentation” part that brings about major difficulties. In which stage...
CoffeeScript in Action, has been updated with a new Ch 11 and a new TOC + 44%
In the process of Java development, programmers will come across data computation. But Java alone is not convenient to handle such computation. SQL has limited impact on improving the computational efficiency for Java. In this case, a new way is needed.
In report development, we may need to present the data from multiple databases in one report, such as data from MSSQL database for CRM and Oracle database for ERP. If the reporting tool like iReport only supports single data source, then we need to consolidate the multiple data sources into a single data source.
The Crystal, BIRT, and other so-called reporting tools for multiple data source can...
The data computation layer of Java aims to reduce the coupling between data persistent layer and the application layer and shift the computational workload from them. In this survey, 5 data computation layers of Hibernate, esProc, SQL, iBATIS, and R language are tested and compared on the basis of the below metrics: maturity, low coupling, scripting, integration, UI friendliness, performance, complex computation, support for big data, non-database computation, cross-database computation, and convenience for debugging.
Big data will fall into the pitfall of failure. But why big data will fall into the pitfall of failure? It is because the current big data only provides the solution for data storage and query. It lacks a good solution for business analysis to enhance the competitiveness, which is the most crucial. How to avoid the pitfall?
An interesting article: Social Enterprise Architecture that describes the idea of using the Social Technologies to improve the engagement and interactions of the business and IT, and the Enterprise Architecture organization to provide more structure and semantics to the interactions and collaboration tools in the enterprise.