|By Roland Barcia
|January 19, 2006 11:15 AM EST
In this article, WebSphere consultant Roland Barcia answers questions on developing J2EE and Web services applications on IBM Rational Application Developer V6 and deploying and testing those applications on WebSphere Application Server V6. Topics include using the various wizards, perspectives, and tools in Rational Application Developer to develop different types of J2EE applications, using the new Service Integration Bus Messaging Platform in WebSphere Application Server V6, differences from V5 of WebSphere Studio or WebSphere Application Server, using the default WebSphere Application Server V6 in Rational Application Developer, and deploying to full WebSphere Application Server V6 Network Deployment.
Question: We have the WebSphere 5.0 server only. I started to move our IDE from WebSphere Studio Application Developer 5.1.2 (hereafter called Application Developer) to Rational Application Developer (RAD) V6 to take advantage of some new features in RAD 6. I set the J2EE level to 1.3 and worked out a few issues: the EAR file generated from RAD 6 works fine in WebSphere Application Server 5 (hereafter called Application Server). But, we still have problems in RAD 6. For example, some error messages show up in the JSP fragment files. It seems the JSP compiler or validator in RAD 6 tries to compile those fragment files like a standalone files. I just wonder if it is a right choice to use RAD 6 to develop J2EE application running on a V5 server? Is it possible to make the JSP compiler in RAD 6 work the same way as in Application Developer 5.1.2 since we are targeting the V5 server?
Answer: WebSphere Studio Application Developer V 5.1.2 had the same issue, but the validation was probably off by default. I always tell people that validation should be off by default and executed on demand when needed. This improves the speed of your builds dramatically. You can turn off JSP validation at the Project level by right clicking the project and selecting properties (see Figure 1).
Or, you can turn it off at the workspace level by selecting Windows -> Preferences (see Figure 2).
For more tips on performance, see Rational Application Developer Performance Tips.
Question: How do we specify in WebSphere annotations if we want composers to be used for custom mappings of user types in CMP 2.x beans?
Answer: Currently, there are no annotations for composers in the current version.
Question: How to handle top down WSDL to Java round tripping? Now using iRAD so when modifying WSDL, I don't want to lose code in the service endpoint skeleton (where first level user code goes in Java). Don't want to use java2WSDL so as to maintain interoperable WSDL, given top down WSDL to Java is recommended. What are the options? Modifying/enhancing WSDL should be supported as a basic service lifecycle requirement. Have large number of teams requiring standards/guidance on how to manage changing service interfaces.
Can iRAD provide support? Past initial Java service class generation?
Are there any tools available? Should be able to track and not lose non-generated code.
Answer: Currently, there are no annotations or tools that you can use to avoid changes from not being overridden. You can use certain strategies:
- After the initial generation, use the bottom-up approach after that. Changes on an interface are usually driven by changes needed in the implementation.
- If you want to use top-down, make sure your generated skeleton code is just a pass through to another class. This way, all you have are minimal changes that are made through re-generation. You could probably write an ANT task or use the Design Pattern Toolkit to generate the call to the class.
- If you use the Service Integration Bus, you can use Inbound Services to expose destinations as Web services and have Mediations service the request. The Mediation Code will not be re-generated because they interact with Service Data Objects (SDO). For more information, see Service Integration Bus article series and Deploying JMS Applications and MDBs into the Service Integration Bus.
Is it possible to apply WebSphere Application Server Refreshment Pack onto WebSphere Application Server 6 test enviromnent within RAD6? I've applied RAD6 188.8.131.52 interim fix 3 to RAD6, but the test environment seems to stay at the original level (184.108.40.206), according to the \Rational\SDP\6.0\runtimes\base_v6\profiles\default\bin\versioninfo command.
Answer: Yes, going forward, you need to apply WAS fixpacks and refresh packs to the WebSphere Application Server Test Environment separately, as documented in Technote: Upgrading the WebSphere Test Environment V6 in Rational Application or Web Developer. The test environment in RAD is a full WebSphere Application Server Base edition. When installing WebSphere updates, WebSphere Application Server's root will be C:/<RAD_INSTALL_ROOT>/runtimes/base_v6.
Question: I am now looking into the features of RAD 6 and trying to test EJBs using the EJB component Test. But til now, I am not successful and getting into lot of issues. Do you have any document that explains how to test EJBs?
Answer: You can check the following resources:
- Component testing with IBM Rational Application Developer for WebSphere Software describes using the Test Component Feature.
- Essentials of IBM Rational Application Developer: Component Testing Features is a Web-based course.
- The Rational Software Development Platform Information Center has additional information.
Is there a mechanism to maintain data/record locking in the backend database when the end-user is working on the data accessed through a JSF/SDO (Service Data Objects) based Web client? If not, is there a mechanism to at least inform the client that the data he/she has accessed has changed while he/she was working on it.
Answer: Yes, you can supply an optimistic concurrency control (OCC) integer column to a given table, and specify that this column is to be used for OCC in the metadata. The defined OCC collision column is reserved for the exclusive use of the mediator. For more details, see JDBC mediator transactions.
- Is it possible to use Crystal Reports with WebSphere Portal 5.0? If not, what other reporting software would be suggested?
- Is it possible to use MySQL to develop CMP EJBs in RAD v6?
- Is it possible to use Crystal Reports with Cloudscape?
- Business Objects provides solutions for IBM WebSphere Portal by providing various portlets. For more information, see Business Objectives Enterprise Portlets.
- As long as you have a compliant JDBC driver, it could work. However, IBM provides support for the JDBC drivers listed in the Information Center. If your DB is not listed, you may want to talk to your IBM Representative.
- You need to check with Business Objects who makes Crystal Reports, for their official supported list of databases. For more information, see Crystal Report Features.
When people aren’t talking about VMs and containers, they’re talking about serverless architecture. Serverless is about no maintenance. It means you are not worried about low-level infrastructural and operational details. An event-driven serverless platform is a great use case for IoT.
In his session at @ThingsExpo, Animesh Singh, an STSM and Lead for IBM Cloud Platform and Infrastructure, will detail how to build a distributed serverless, polyglot, microservices framework using open source tec...
Jun. 27, 2016 08:30 PM EDT Reads: 322
IoT offers a value of almost $4 trillion to the manufacturing industry through platforms that can improve margins, optimize operations & drive high performance work teams. By using IoT technologies as a foundation, manufacturing customers are integrating worker safety with manufacturing systems, driving deep collaboration and utilizing analytics to exponentially increased per-unit margins.
However, as Benoit Lheureux, the VP for Research at Gartner points out, “IoT project implementers often ...
Jun. 27, 2016 07:45 PM EDT Reads: 342
Basho Technologies has announced the latest release of Basho Riak TS, version 1.3. Riak TS is an enterprise-grade NoSQL database optimized for Internet of Things (IoT). The open source version enables developers to download the software for free and use it in production as well as make contributions to the code and develop applications around Riak TS. Enhancements to Riak TS make it quick, easy and cost-effective to spin up an instance to test new ideas and build IoT applications. In addition to...
Jun. 27, 2016 05:15 PM EDT Reads: 356
Presidio has received the 2015 EMC Partner Services Quality Award from EMC Corporation for achieving outstanding service excellence and customer satisfaction as measured by the EMC Partner Services Quality (PSQ) program. Presidio was also honored as the 2015 EMC Americas Marketing Excellence Partner of the Year and 2015 Mid-Market East Partner of the Year.
The EMC PSQ program is a project-specific survey program designed for partners with Service Partner designations to solicit customer feedbac...
Jun. 27, 2016 03:15 PM EDT Reads: 351
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations.
In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, discussed how research has demonstrated the value of Machine Learning in delivering next generation analytics to imp...
Jun. 27, 2016 03:00 PM EDT Reads: 760
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy).
The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
Jun. 27, 2016 03:00 PM EDT Reads: 1,159
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed.
In his Day 2 Keynote at @ThingsExpo, Henrik Kenani Dahlgren, Portfolio Marketing Manager at Ericsson, discussed how to plan to cooperate, partner, and form lasting all-star teams to change t...
Jun. 27, 2016 02:45 PM EDT Reads: 1,232
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain.
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
Jun. 27, 2016 02:30 PM EDT Reads: 1,237
There are several IoTs: the Industrial Internet, Consumer Wearables, Wearables and Healthcare, Supply Chains, and the movement toward Smart Grids, Cities, Regions, and Nations. There are competing communications standards every step of the way, a bewildering array of sensors and devices, and an entire world of competing data analytics platforms. To some this appears to be chaos.
In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Bradley Holt, Developer Advocate a...
Jun. 27, 2016 12:00 PM EDT Reads: 847
Connected devices and the industrial internet are growing exponentially every year with Cisco expecting 50 billion devices to be in operation by 2020. In this period of growth, location-based insights are becoming invaluable to many businesses as they adopt new connected technologies. Knowing when and where these devices connect from is critical for a number of scenarios in supply chain management, disaster management, emergency response, M2M, location marketing and more.
In his session at @Th...
Jun. 27, 2016 10:00 AM EDT Reads: 1,055
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market?
In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...
Jun. 27, 2016 09:30 AM EDT Reads: 899
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives.
Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
Jun. 27, 2016 07:30 AM EDT Reads: 1,076
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things.
And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
Jun. 26, 2016 05:00 PM EDT Reads: 1,326
SYS-CON Events announced today that Bsquare has been named “Silver Sponsor” of SYS-CON's @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
For more than two decades, Bsquare has helped its customers extract business value from a broad array of physical assets by making them intelligent, connecting them, and using the data they generate to optimize business processes.
Jun. 26, 2016 05:00 PM EDT Reads: 1,244
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world.
The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago.
All major researchers estimate there will be tens of billions devices - comp...
Jun. 26, 2016 04:00 PM EDT Reads: 1,299
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world.
Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Jun. 26, 2016 04:00 PM EDT Reads: 1,367
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location.
With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
Jun. 26, 2016 12:00 PM EDT Reads: 1,315
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
Jun. 26, 2016 12:00 PM EDT Reads: 1,153
There is little doubt that Big Data solutions will have an increasing role in the Enterprise IT mainstream over time. Big Data at Cloud Expo - to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA - has announced its Call for Papers is open.
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is...
Jun. 26, 2016 12:00 PM EDT Reads: 1,376
Cognitive Computing is becoming the foundation for a new generation of solutions that have the potential to transform business. Unlike traditional approaches to building solutions, a cognitive computing approach allows the data to help determine the way applications are designed. This contrasts with conventional software development that begins with defining logic based on the current way a business operates.
In her session at 18th Cloud Expo, Judith S. Hurwitz, President and CEO of Hurwitz & ...
Jun. 25, 2016 03:00 PM EDT Reads: 1,652