Welcome!

IBM Cloud Authors: John Basso, Liz McMillan, Akhil Sahai, Scott Allen, Elizabeth White

Related Topics: IBM Cloud, Microservices Expo

IBM Cloud: Article

Developing Java and Web Services Applications on Rational Application Developer V6

How to Use Rational Application Developer 6

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.
Question: Is it possible to apply WebSphere Application Server Refreshment Pack onto WebSphere Application Server 6 test enviromnent within RAD6? I've applied RAD6 6.0.0.1 interim fix 3 to RAD6, but the test environment seems to stay at the original level (6.0.0.0), 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.
Question: 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.

Question:

  1. Is it possible to use Crystal Reports with WebSphere Portal 5.0? If not, what other reporting software would be suggested?
  2. Is it possible to use MySQL to develop CMP EJBs in RAD v6?
  3. Is it possible to use Crystal Reports with Cloudscape?
Answer:
  1. Business Objects provides solutions for IBM WebSphere Portal by providing various portlets. For more information, see Business Objectives Enterprise Portlets.
  2. 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.
  3. 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.

More Stories By Roland Barcia

Roland Barcia is a consulting IT specialist for IBM Software Services for WebSphere in the New York/New Jersey Metro area. He is the author of one of the most popular article series on the developerWorks WebSphere site, www-106.ibm.com/developerworks/websphere/techjournal/0401_barcia/barcia.html, and is also a coauthor of IBM WebSphere: Deployment and Advanced Configuration. You can find more information about him at http://web.njit.edu/~rb54

Comments (3) 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
babu 05/08/06 04:06:40 AM EDT

I need web service tutiroal for Rational application developer tool

Raksha 03/21/06 01:18:15 AM EST

Really usefull tips. But this answers very specific questions only. I am currently trying to gather all the information regarding problems i am going to face to migrate applications currently running on WAS5 to WASv6. so all the changes in coe and configurations i will need to make to these apps before i can see them running properly on the WAS v6.
summary of problems people faced while doing this. If anyone can help me, kindly mail me at rakshams@rediffmail.com
any links and suggestions are welcome
thanks
Raksha

SYS-CON Italy News Desk 01/19/06 12:37:35 PM 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.

@ThingsExpo Stories
Big Data, cloud, analytics, contextual information, wearable tech, sensors, mobility, and WebRTC: together, these advances have created a perfect storm of technologies that are disrupting and transforming classic communications models and ecosystems. In his session at @ThingsExpo, Erik Perotti, Senior Manager of New Ventures on Plantronics’ Innovation team, provided an overview of this technological shift, including associated business and consumer communications impacts, and opportunities it ...
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Manufacturers are embracing the Industrial Internet the same way consumers are leveraging Fitbits – to improve overall health and wellness. Both can provide consistent measurement, visibility, and suggest performance improvements customized to help reach goals. Fitbit users can view real-time data and make adjustments to increase their activity. In his session at @ThingsExpo, Mark Bernardo Professional Services Leader, Americas, at GE Digital, discussed how leveraging the Industrial Internet a...
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...
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
The best-practices for building IoT applications with Go Code that attendees can use to build their own IoT applications. In his session at @ThingsExpo, Indraneel Mitra, Senior Solutions Architect & Technology Evangelist at Cognizant, provided valuable information and resources for both novice and experienced developers on how to get started with IoT and Golang in a day. He also provided information on how to use Intel Arduino Kit, Go Robotics API and AWS IoT stack to build an application tha...
Amazon has gradually rolled out parts of its IoT offerings in the last year, but these are just the tip of the iceberg. In addition to optimizing their back-end AWS offerings, Amazon is laying the ground work to be a major force in IoT – especially in the connected home and office. Amazon is extending its reach by building on its dominant Cloud IoT platform, its Dash Button strategy, recently announced Replenishment Services, the Echo/Alexa voice recognition control platform, the 6-7 strategic...
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
IoT generates lots of temporal data. But how do you unlock its value? You need to discover patterns that are repeatable in vast quantities of data, understand their meaning, and implement scalable monitoring across multiple data streams in order to monetize the discoveries and insights. Motif discovery and deep learning platforms are emerging to visualize sensor data, to search for patterns and to build application that can monitor real time streams efficiently. In his session at @ThingsExpo, ...
Verizon Communications Inc. (NYSE, Nasdaq: VZ) and Yahoo! Inc. (Nasdaq: YHOO) have entered into a definitive agreement under which Verizon will acquire Yahoo's operating business for approximately $4.83 billion in cash, subject to customary closing adjustments. Yahoo informs, connects and entertains a global audience of more than 1 billion monthly active users** -- including 600 million monthly active mobile users*** through its search, communications and digital content products. Yahoo also co...
There will be new vendors providing applications, middleware, and connected devices to support the thriving IoT ecosystem. This essentially means that electronic device manufacturers will also be in the software business. Many will be new to building embedded software or robust software. This creates an increased importance on software quality, particularly within the Industrial Internet of Things where business-critical applications are becoming dependent on products controlled by software. Qua...
In addition to all the benefits, IoT is also bringing new kind of customer experience challenges - cars that unlock themselves, thermostats turning houses into saunas and baby video monitors broadcasting over the internet. This list can only increase because while IoT services should be intuitive and simple to use, the delivery ecosystem is a myriad of potential problems as IoT explodes complexity. So finding a performance issue is like finding the proverbial needle in the haystack.
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...
Large scale deployments present unique planning challenges, system commissioning hurdles between IT and OT and demand careful system hand-off orchestration. In his session at @ThingsExpo, Jeff Smith, Senior Director and a founding member of Incenergy, will discuss some of the key tactics to ensure delivery success based on his experience of the last two years deploying Industrial IoT systems across four continents.
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...
The Internet of Things will challenge the status quo of how IT and development organizations operate. Or will it? Certainly the fog layer of IoT requires special insights about data ontology, security and transactional integrity. But the developmental challenges are the same: People, Process and Platform. In his session at @ThingsExpo, Craig Sproule, CEO of Metavine, demonstrated how to move beyond today's coding paradigm and shared the must-have mindsets for removing complexity from the develo...
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...
IoT is rapidly changing the way enterprises are using data to improve business decision-making. In order to derive business value, organizations must unlock insights from the data gathered and then act on these. In their session at @ThingsExpo, Eric Hoffman, Vice President at EastBanc Technologies, and Peter Shashkin, Head of Development Department at EastBanc Technologies, discussed how one organization leveraged IoT, cloud technology and data analysis to improve customer experiences and effi...
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.