Welcome!

SOA & WOA Authors: Mike Kavis, Carmen Gonzalez, Pete Pickerill, Elizabeth White, Liz McMillan

Related Topics: SOA & WOA

SOA & WOA: Article

XML Binding Frameworks in the Context of Service-Oriented Architecture

Make an informed choice about a binding framework for your SOA needs

XMLBeans (http://xmlbeans.apache.org): XMLBeans uses XML Schema to compile to Java interfaces and classes that allow modification of XML instance data. XMLBeans provides setter and getter methods like JavaBeans. XMLBeans distinguishes itself by fully supporting XML Schema. During demarshalling an XML instance the full XML infoset is kept and is available to the developer. This is critical because a subset of XML is not easily represented in Java, e.g., the order of elements or comments might be needed in an application.

JAXB (www.java.sun.com/xml/jaxb): JAXB is a standard for XML binding and consists of two parts. First, JAXB contains a compiler that reads a schema and produces the equivalent Java object model. This generated object model captures the structure of XML better than general-purpose APIs like DOM or SAX, making it a lot easier to manipulate XML content.

The second part is an API, through which applications communicate with generated code. The JAXB implementation from SUN JWSDP1.5 is used.

Quantitative Evaluation of the Frameworks
We have quantitatively evaluated the XML binding frameworks on the following parameters.

  1. Marshalling Time - Marshalling is the process of generating an XML representation for an object in memory. As with Java object serialization, the representation needs to include all dependent objects: objects referenced by our main object, objects referenced by those objects, and so on.
  2. Demarshalling Time - Demarshalling is the reverse process of marshalling; it builds an object (and potentially a graph of linked objects) in memory from an XML representation.
  3. Memory Load - JVM Heap memory used for the whole process of marshalling and demarshalling using the respective XML binding frameworks.
Performance Tests
The test run used three samples of XML varied by its nature (segmentation factor). The test cases had to execute the selected binding frameworks on the sample XML files serially some x number of times. In addition to these, x number of threads have been executed concurrently. The combination of these test scenarios is an indicator of the memory load on a platform and time statistics of each of these utilities (see Table 1).

Test Suite
The JProbe profiler and Memory Debugger have been used to capture the performance, memory, and threading coverage issues of the respective binding frameworks. Each test case is run as a stand-alone session to have snapshots of the performance captured for each program execution. The tests are performed on a system with the following configuration:

  • Pentium IV 1.8 GHz
  • 512 MB RAM
  • Virtual Memory: 768 MB
Quantitative Results
Marshalling Time

The graphs in Figures 4.1-4.4 represent the marshalling performance for simple and complex XML respectively. Higher performance from JiBX is due to the byte code enhancement done at the compile time. It avoids introspection at runtime.

As seen from Figures 4.3 and 4.4, for multiple concurrent threads the results for XMLBeans worsen, whereas JiBX on the other hand has the same pattern.

Demarshalling Time
Refer to Figures 4.5 and Fig 4.6. Castor provides good support for data binding using code generation, but demarshalling performance is weak compared to others. The graph pattern is similar in the case of concurrent runs.

Castor uses the SAX2 parser and parses the XML file in an event-driven manner, thus reducing its speed and performance as compared to JiBX.

JiBX uses XMLPull parsing technique, unlike the push parsing techniques such as SAX. Instead of the parser calling methods in the handler to report document components, one calls the parser to get each component in turn.

Memory Load
Memory load over the entire run (composed of demarshalling marshalling) is low for JiBX as it uses the XMLPull parsing technique during demarshalling, which doesn't require the parser to maintain the state in the document. Castor uses the SAX2 parser, which requires the parser to maintain the state in the document. JAXB is relatively inefficient in terms of memory usage.

Inferences
From the performance analysis of the four data-binding frameworks, a SWOT analysis is presented in Figure 5. Based on information from Figure 5 and from the performance charts seen earlier, JiBX outperforms all of the other binding frameworks by a wide margin on both time and memory usage. JAXB scores well on marshalling and demarshalling time, but its memory usage is higher than the others. XMLBeans has a major performance hit but is more memory-efficient than Castor and JAXB. Depending on the specific requirement of an application, a suitable XML binding framework can be chosen.

Summary
We have illustrated in this article the pivotal role XML binding frameworks can play in context of SOA. To enable practitioners to make an informed choice about the appropriate XML binding platform, we have carried out a detailed quantitative analysis of some of the popular XML binding frameworks in the J2EE context, and presented the results.

References

More Stories By Dr. Srinivas Padmanabhuni

Dr. Srinivas Padmanabhuni is a principal researcher with the Web Services Centre of Excellence in SETLabs, Infosys Technologies, and specializes in Web Services, service-oriented architecture, and grid technologies alongside pursuing interests in Semantic Web, intelligent agents, and enterprise architecture. He has authored several papers in international conferences. Dr. Padmanabhuni holds a PhD degree in computing science from University of Alberta, Edmonton, Canada.

More Stories By Bijoy Majumdar

Bijoy Majumdar is a member of the Web Services COE (Center of Excellence) for Infosys Technologies, a global IT consulting firm, and has substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. Prior to Infosys, Bijoy Majumdar worked as an IT Analyst, and had been a member of the GE Center of Excellence (e-center) under the E-Business Practice of Tata Consultancy Services.

More Stories By Ujval Mysore

Ujval Mysore is a member of the Web Services COE (Center of Excellence) for Infosys Tehcnologies, a global IT consulting firm, and have substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. The Web Services COE specializes in SOA, Web services, and other related technologies. Dr. Srinivas Padmanabhuni heads the Web Services COE.

More Stories By Vikram Sitaram

Vikram Sitaram is a member of the Web Services COE (Center of Excellence) for Infosys Tehcnologies, a global IT consulting firm, and have substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. The Web Services COE specializes in SOA, Web services, and other related technologies. Dr. Srinivas Padmanabhuni heads the Web Services COE.

Comments (2) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
tejasvi 08/12/05 12:13:44 PM EDT

this article is excellent

XML News Desk 08/02/05 04:46:17 PM EDT

XML Binding Frameworks in the Context of Service-Oriented Architecture. This article critically evaluates the role of XML binding frameworks play in the context of service-oriented architecture (SOA) platforms, and it also provides an objective evaluation of the popular XML binding frameworks in a J2EE environment.

@ThingsExpo Stories
The BPM world is going through some evolution or changes where traditional business process management solutions really have nowhere to go in terms of development of the road map. In this demo at 15th Cloud Expo, Kyle Hansen, Director of Professional Services at AgilePoint, shows AgilePoint’s unique approach to dealing with this market circumstance by developing a rapid application composition or development framework.
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, phone and digital TV services to consumers primarily in rural areas.
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover how hardware commoditization, the ubiquitous nature of connectivity, and the emergence of Big Data a...
"BSQUARE is in the business of selling software solutions for smart connected devices. It's obvious that IoT has moved from being a technology to being a fundamental part of business, and in the last 18 months people have said let's figure out how to do it and let's put some focus on it, " explained Dave Wagstaff, VP & Chief Architect, at BSQUARE Corporation, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
The major cloud platforms defy a simple, side-by-side analysis. Each of the major IaaS public-cloud platforms offers their own unique strengths and functionality. Options for on-site private cloud are diverse as well, and must be designed and deployed while taking existing legacy architecture and infrastructure into account. Then the reality is that most enterprises are embarking on a hybrid cloud strategy and programs. In this Power Panel at 15th Cloud Expo (http://www.CloudComputingExpo.com), moderated by Ashar Baig, Research Director, Cloud, at Gigaom Research, Nate Gordon, Director of T...
SYS-CON Events announced today that IDenticard will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IDenticard™ is the security division of Brady Corp (NYSE: BRC), a $1.5 billion manufacturer of identification products. We have small-company values with the strength and stability of a major corporation. IDenticard offers local sales, support and service to our customers across the United States and Canada. Our partner network encompasses some 300 of the world's leading systems integrators and security s...

ARMONK, N.Y., Nov. 20, 2014 /PRNewswire/ --  IBM (NYSE: IBM) today announced that it is bringing a greater level of control, security and flexibility to cloud-based application development and delivery with a single-tenant version of Bluemix, IBM's platform-as-a-service. The new platform enables developers to build ap...

“In the past year we've seen a lot of stabilization of WebRTC. You can now use it in production with a far greater degree of certainty. A lot of the real developments in the past year have been in things like the data channel, which will enable a whole new type of application," explained Peter Dunkley, Technical Director at Acision, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
DevOps Summit 2015 New York, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that it is now accepting Keynote Proposals. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long development cycles that produce software that is obsolete at launch. DevOps may be disruptive, but it is essential.
"People are a lot more knowledgeable about APIs now. There are two types of people who work with APIs - IT people who want to use APIs for something internal and the product managers who want to do something outside APIs for people to connect to them," explained Roberto Medrano, Executive Vice President at SOA Software, in this SYS-CON.tv interview at Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Nigeria has the largest economy in Africa, at more than US$500 billion, and ranks 23rd in the world. A recent re-evaluation of Nigeria's true economic size doubled the previous estimate, and brought it well ahead of South Africa, which is a member (unlike Nigeria) of the G20 club for political as well as economic reasons. Nigeria's economy can be said to be quite diverse from one point of view, but heavily dependent on oil and gas at the same time. Oil and natural gas account for about 15% of Nigera's overall economy, but traditionally represent more than 90% of the country's exports and as...
The Internet of Things is a misnomer. That implies that everything is on the Internet, and that simply should not be - especially for things that are blurring the line between medical devices that stimulate like a pacemaker and quantified self-sensors like a pedometer or pulse tracker. The mesh of things that we manage must be segmented into zones of trust for sensing data, transmitting data, receiving command and control administrative changes, and peer-to-peer mesh messaging. In his session at @ThingsExpo, Ryan Bagnulo, Solution Architect / Software Engineer at SOA Software, focused on desi...
"At our booth we are showing how to provide trust in the Internet of Things. Trust is where everything starts to become secure and trustworthy. Now with the scaling of the Internet of Things it becomes an interesting question – I've heard numbers from 200 billion devices next year up to a trillion in the next 10 to 15 years," explained Johannes Lintzen, Vice President of Sales at Utimaco, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
"For over 25 years we have been working with a lot of enterprise customers and we have seen how companies create applications. And now that we have moved to cloud computing, mobile, social and the Internet of Things, we see that the market needs a new way of creating applications," stated Jesse Shiah, CEO, President and Co-Founder of AgilePoint Inc., in this SYS-CON.tv interview at 15th Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that Gridstore™, the leader in hyper-converged infrastructure purpose-built to optimize Microsoft workloads, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Gridstore™ is the leader in hyper-converged infrastructure purpose-built for Microsoft workloads and designed to accelerate applications in virtualized environments. Gridstore’s hyper-converged infrastructure is the industry’s first all flash version of HyperConverged Appliances that include both compute and storag...
Today’s enterprise is being driven by disruptive competitive and human capital requirements to provide enterprise application access through not only desktops, but also mobile devices. To retrofit existing programs across all these devices using traditional programming methods is very costly and time consuming – often prohibitively so. In his session at @ThingsExpo, Jesse Shiah, CEO, President, and Co-Founder of AgilePoint Inc., discussed how you can create applications that run on all mobile devices as well as laptops and desktops using a visual drag-and-drop application – and eForms-buildi...
We certainly live in interesting technological times. And no more interesting than the current competing IoT standards for connectivity. Various standards bodies, approaches, and ecosystems are vying for mindshare and positioning for a competitive edge. It is clear that when the dust settles, we will have new protocols, evolved protocols, that will change the way we interact with devices and infrastructure. We will also have evolved web protocols, like HTTP/2, that will be changing the very core of our infrastructures. At the same time, we have old approaches made new again like micro-services...
Code Halos - aka "digital fingerprints" - are the key organizing principle to understand a) how dumb things become smart and b) how to monetize this dynamic. In his session at @ThingsExpo, Robert Brown, AVP, Center for the Future of Work at Cognizant Technology Solutions, outlined research, analysis and recommendations from his recently published book on this phenomena on the way leading edge organizations like GE and Disney are unlocking the Internet of Things opportunity and what steps your organization should be taking to position itself for the next platform of digital competition.
The 3rd International Internet of @ThingsExpo, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that its Call for Papers is now open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
As the Internet of Things unfolds, mobile and wearable devices are blurring the line between physical and digital, integrating ever more closely with our interests, our routines, our daily lives. Contextual computing and smart, sensor-equipped spaces bring the potential to walk through a world that recognizes us and responds accordingly. We become continuous transmitters and receivers of data. In his session at @ThingsExpo, Andrew Bolwell, Director of Innovation for HP's Printing and Personal Systems Group, discussed how key attributes of mobile technology – touch input, sensors, social, and ...