Defining "Who sees what" and "who does what" are the two important aspects of access control in any software application. "Security" is a much larger subject, but this article focuses on just the access control aspects of Security in a software application. When you build a custom ap...

Performance is one word that is used to describe multiple scenarios when talking about application performance. When someone says I need a High Performance Application, it might mean any/all of the following: Low web latency application ( meaning low page loading times) Application t...

HTML5 is a draft specification for the next major iteration of HTML. It represents a break from its predecessors, HTML4 and XHTML. Some elements have been removed and it is no longer based on SGML, an older standard for document markup. HTML5 also has more allowances for incorrect synt...

In early JVM releases, it was common to delegate Java monitor operations directly to operating system monitors, or mutex primitives. As a result, a Java application experiencing lock contention would exhibit high values of system CPU utilization since operating system mutex primitives ...

Most Java performance opportunities fall into one or more of the following categories: Using a more efficient algorithm. The largest gains in the performance of an application come from the use of a more efficient algorithm. The use of a more efficient algorithm allows an application ...

The term Business Transactions and Business Transaction Management is widely used in the industry but it’s not always well understood what we really mean by it. The BTM Industry Portal provides some good articles on this topic and is definitely recommended to check out. The general goa...

It’s a scenario with which many Java developers are all too familiar – and one which many fear. You log on to the network or arrive at the office to discover your Chief Security or Compliance Officer, Application Manager or even a VP of Sales and Marketing in a state of panic. A common...

JavaServer Faces (JSF) technology is used for developing server-side user interfaces (UI) for Java EE applications. JSF 2.0 architecture has introduced several new features, most of which we shall discuss in this article. The salient new features in JSF 2.0 are State Saving, Facelets, ...

The recent spike in insider threats, coupled with a rise in compliance considerations, has forced organizations to ensure only authorized users access sensitive application functionality and data. Historically, user entitlements or authorization logic has been embedded inside an applic...

If you are in IT, there is good chance that you are maintaining multiple B2B integration systems for data exchange and translation. Every IT leader has considered consolidating these products into a single B2B suite to reduce costs and improve supply chain agility. Historically, each B...

Tomcat is a widely popular lightweight application server. When securing Tomcat web applications, Valve, JAAS and Filter are used in various scenarios. The challenges for developers are when to use each of these methods and how to integrate them together if more than one method is chos...

Performance is one of the major concerns in the cloud. But the question should not really be whether or not the cloud performs, but whether the Application in question can and does perform in the cloud. The main problem here is that application performance is either not managed at all ...

One sure fire way to keep budget and buzz away from your projects is for you and your department to be associated with incremental improvement. Projects can generally be classified into two categories. The first is “business transformation,” which includes projects that generate excite...

I’ve been programming since around 1982, first using an Apple in high school and then finally getting my first computer, the Timex Sinclair 1000 (2k of ROM and 2k of RAM), that same year. Both computers came with a form of the BASIC programming language and it was the start of my lifel...

Response times are in many – if not in most – cases the basis for performance analysis. When they are within expected boundaries everything is ok. When they get to high we start optimizing our applications. So response times play a central role in performance monitoring and analysis. ...

The OSGi framework is a popular platform for developing multifunctional desktop systems, enterprise systems and complex applications. OSGi uses a modular approach where each bundle is regarded as a relatively independent and separate unit. The framework controls maintenance-based tas...

Current SQL support of relational, XML and hierarchical legacy data such as IMS is driven by flattening the hierarchical data. This is needed in order to integrate it naturally with relational (flat) data so that it can be processed relationally. Unfortunately, this strips out the natu...

OSGi technology brings a number of much needed benefits to the Java enterprise application market, and is disruptive in that it impacts the software development, deployment, and management practices of many organizations. OSGi impacts deployment given the shared, modular nature of OSGi...

Which mobile device should I target for my application? That's one of the first questions you need to answer as a mobile developer. You might select the device based on personal preference or what looks cool today. The problem is that mobile technology choices are diverse and evolvi...

Hierarchical structures have an inherent ability for significant data value increases beyond the data collected. This will be shown to exist in hierarchical structures and even more powerfully in their natural hierarchical processing capabilities. These will demonstrate flexible and e...

There are two major drivers behind the need to embrace parallelism: the dramatic shift to commodity multicore CPUs, and the striking increase in the amount of data being processed by the applications that run our enterprises. These two factors must be addressed by any approach to paral...

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...