Welcome!


HTML5 WebSocket is an important new technology that helps you build engaging, interactive, real-time web applications quickly and reliably. Sure, HTML5 WebSockets may be the best thing since sliced bread, but is this new technology right for you? This article identifies five types of ...
Modern enterprise IT infrastructure must keep pace with dynamic needs. As business changes, it allows customers to react quickly to maintain a competitive edge in the marketplace, often by leveraging new technologies to improve the bottom-line performance. Oracle WebLogic Server11g pro...
HTML5 introduces Application Cache, a new feature that enables you to make web apps and sites available offline. The new specification also provides an easy way to prefetch some or all of your web app’s assets (HTML files, images, CSS, JavaScript, and so on) while the client is still o...
Software maintenance is a tedious and challenging job. As long as the software functions as expected, it looks great. Imagine the situation, your pager keeps buzzing in the midnight (Not a happy feeling, right?). Any software system, no matter how well it has been built and quality te...
In this step, you will configure the project to use Spring framework and generate Spring ORM classes to access the entities created earlier. The tasks you will complete in this step are: Add Spring Facet to project, Generate Spring ORM classes, Review the Spring service beans and con...
Cloud computing is one of the emerging paradigms in today’s computing world. One of the main advantages of migrating to the cloud is its elastic nature. Elasticity allows dynamic provisioning and de-provisioning of resources according to the application’s workload requirement. In a t...
A web server plays an increasingly important role in the computing world as the world has shifted away from traditional stand-alone desktop computing to Internet's Client-Server and its variants based computing paradigm. Almost everything on networks is consumed either by using web ser...
The use of transactions is a cornerstone when building database applications. However in our daily work, we often do not really care much about them. In many cases they are handled implicitly for us by the (J EE) container or application framework – such as Spring – we are using. We re...
It would seem like the last thing we need in SAP systems is more metrics. Automated solutions that investigate, monitor and track ERP systems are common, so why are major corporations increasingly employing automated metrics for SAP systems? Like all systems that span the enterprise, ...
In Part 4 I discussed the Oracle Enterprise Pack for Eclipse and how it allows you to view, create, and manage JPA entity relationships. The Entity Editor provides a centralized view of all entity relationships, allows you to modify entity properties, and allows you to navigate between...
In this article I discuss the seven most important steps to improve your application performance practices. These simple-to-follow practices will help you to improve the way you deal with application performance. Besides eventually improving the performance of your applications it will...
With more than 3 million downloads, Selenium is the world’s most popular functional testing framework. It allows web developers and QA professionals to automatically test how an application functions on multiple browsers, such as Firefox, Internet Explorer and Chrome and across operati...
What is an event? Generally speaking, an event is an occurrence that brings about significant change in the state of an object from a certain point of view. For example, the “sunrise” is an event that is defined from the perspective of an earthling. Yet from the perspective of an alien...
Oracle Enterprise Pack for Eclipse allows you to view, create, and manage JPA entity relationships. The Entity Editor provides a centralized view of all entity relationships, allows you to modify entity properties, and allows you to navigate between the object model, mapping associatio...
We all know that slow performance – and service disruption even more – affects our business services and eventually our revenue. At the same time we say that major parts of companies are not willing to invest in performance. In this article I will discuss why we find ourselves in this ...
Two weeks ago I co-hosted a Webinar with one of our users – Bill Mar, Director of Engineering Services from SmithMicro Software. SmithMicro provides the backbone of our digital life by connecting different digital devices together. In his role, Bill works in the Wireless Business unit ...
With Visual Studio 2010, Microsoft is shipping the next version of the popular ASP.NET MVC Framework with its IDE. A year ago I blogged about my findings when getting my hands on the first version of ASP.NET MVC. The MVC Framework provides really nice features that make it very easy to...
When we encounter a java.lang.OutOfMemoryError, we often find that Java heap dumps, along with other artifacts, are generated by the Java Virtual Machine. If you feel like jumping right into a Java heap dump when you get a java.lang.OutOfMemoryError, don’t worry, it’s a normal thought....
Along with so many others I am stranded in Europe waiting for my flight back to the United States right now. The Volcano not only impacts flights across Europe but also impacts web sites of airports, airlines and travel agencies around the world. Checking my flight status on Sunday was...
Last week I got to analyze a web page that spent 4.8 seconds in the onLoad event handler of a custom script file. It turned out that 2.8 seconds were consumed by applying a dynamic menu library (will blog about this one separately). The remaining 2 seconds were spent in jQuery selector...
The JPA ORM Generation wizard allows modification of existing O/R mappings and the creation of new entity associations. The tasks you will complete in this step are: Create a new one-to-one association between CUSTOMER and CUSTOMERID; Review generated classes with annotations; Add ann...
Integrated Windows Authentication (IWA) provides a user-friendly interface for single sign-on. IWA uses ‘Simple and Protected GSSAPI Negotiation Mechanism’ (SPNEGO) to allow the initiators and acceptors to negotiate the underlying protocol to be used for authentication. In this article...
Lately there has been a lot of buzz around HTML5 Web Sockets, which defines a full-duplex communication channel that operates through a single socket over the Web. HTML5 Web Sockets is not just another incremental enhancement to conventional HTTP communications; it represents a colossa...
In Part 1 of this tutorial, I showed how to set up a web project and connect to a database. In this step, you will use the Data Source Explorer to browse database artifacts. You may need to re-open the JPA perspective. In the Data Source Explorer, expand the nodes inside the New Oracl...
This paper will attempt to discuss the usage scenario and demonstrate the use of WXS as a separate in memory data grid to store http sessions. This paper will discuss history and existing technology and introduces WXS as a technology that differentiates itself, by addressing existing s...
This tutorial provides step-by-step instructions for creating a Web application that uses the Java Persistence API (JPA) version 2.0 with Oracle WebLogic Server 11g Release 1, Spring, EclipseLink, JavaServer Faces (JSF), and Oracle Database, Express Edition. You will develop this appli...
In this third article of my Performance Almanac I discuss the role of overhead in performance management. As a performance management solution provider we’re frequently asked “How much overhead does your solution have?” This question is however a bit more complex to answer than just gi...

 

Abstract

There are many different types of command line options that programs need to recognize. Many languages (e.g.: bash and perl) has built-in processing of command line options; Java does not. The Java Command Line Options (JCLO) package performs this task for a va...

Most enterprise technologists should see a continued payoff of the hard work in planning, architecture, documentation, development and configuration work that has been occurring over the last several years.  Enterprise technologists were building Service Oriented Architectures (SOA) lo...
According to a Smart Enterprise Magazine CIO report, three-quarters of today's CIOs help their companies develop new products or services. Gartner Group's 2008 Worldwide Survey of CIOs, 85 percent of CIOs are now looking toward "IT to make the difference in their enterprise strategy." ...
Troubleshooting of performance problems is very often - if not almost always - viewed as a reactive activity. Frankly, I have often seen it done in such a reactive fashion as a firefight; however, effective troubleshooting should build upon a solid diagnostic process. If you handle tro...
Introduced in 1995, Java has firmly established itself as a mature mainstream programming language for enterprises. The Java platform security model has evolved over the years to meet new requirements, and today enterprise Java developers have a large number of APIs and services to cho...
XML documents can be used to transfer data. The data in an XML document can be retrieved either with the JAXP (Java API for XML Processing) DOM and SAX APIs, or with the JAXP XPath API. Addressing an XML document with XPath has the advantage of selecting a single node directly without ...
If your systems require constant accessibility, you know that application failover is an essential function for automatically and transparently redirecting requests to an alternate server in the case of a failure or downtime. Several options exist for ensuring high availability for you...
The garbage collector is primarily responsible as a collector to reclaim objects that are no longer used by the application. This is an automatic memory management invented by McCarthy. The garbage collector collects unreferenced objects, objects that are not reached by the reference c...
Modern inter-networked software architecture created for today’s “on-demand” business needs have fundamentally increased the susceptibility of applications and, more important, data to security-related attacks and compromises. The rapidly changing environment: increased data breach/los...
One of the main issues that PowerBuilder and PowerBuilder developers have been facing for the last few years is the lack of mind share for the product. All that seems to have changed with Sybase’s announcement of the beta of PowerBuilder 12.0. Articles on the release appeared in a larg...
Writing meaningful Java benchmarks is a tricky business. It's well known that the Java Virtual Machine's just in time (JIT) compilation process means that running an application for a few seconds won't let you predict the performance of the application over hours or days of uptime. In ...
Steve Jobs once said that Java is a big heavyweight ball and chain. Good news: the ball is now optional! In this article, I share results we achieved after implementing a component deployment model, also known as JRE modularity, for the core of J2SE 5.0 and Java SE 6. The technology's ...
Performance implications of certain CSS Selectors are not specific to a certain JavaScript Library like Prototype. I recently blogged about the internals of CSS Selectors in jQuery. The same holds true for every JavaScript library that offers CSS Selectors. Certain lookups can be done ...