|By Arthur Ryman||
|October 19, 2005 08:30 PM EDT||
The Eclipse Open Source Integrated Development Environment (IDE) (see http://eclipse.org) is rapidly gaining popularity among Java developers primarily because of its excellent Java Development Tools (JDT) and its highly extensible plug-in architecture. Extensibility is, in fact, one of the defining characteristics of Eclipse. As the Eclipse home page says, "Eclipse is a kind of universal tool platform - an open extensible IDE for anything and nothing in particular." Although Eclipse is itself a Java application, all tools, including JDT, are on an equal footing in that they extend the Eclipse platform via well-defined extension points.
Of course, an infinitely extensible, but empty, platform might be interesting to tool vendors, but very boring for developers. Therefore, the initial version of Eclipse came with the JDT and the Plug-in Development Environment (PDE), both examples of how to extend the platform and very useful tools in their own right. JDT supported J2SE development while PDE supported Java-based Eclipse plug-in development. The combination of JDT and PDE fueled the creation of thousands of commercial and Open Source plug-ins for Eclipse, many of which supported J2EE development. For example, IBM released Eclipse-based commercial J2EE products, including WebSphere Studio Application Developer, and Rational Application Developer, while eteration, JBoss, Genuitec, Exadel, and Innoopract among others, released Open Source offerings. However, the profusion of J2EE plug-ins made it difficult for vendors to build on each other and for users to assemble an integrated suite of tools. For example, each J2EE toolset had its own way to support application servers.
As the popularity of Eclipse grew, it became apparent that the next logical step in its evolution was to add platform support for J2EE. This support would provide a common infrastructure for all J2EE plug-ins, with the goal of improving tool integration, reducing plug-in development expense, and simplifying the J2EE development experience for Eclipse users.
In June 2004, based on a proposal from IBM, the Eclipse Management Organization (EMO) agreed to create a new top-level project, the Web Tools Platform (WTP). However, it was believed that for WTP to be truly successful it needed a broad base of vendor support. A search began to engage additional vendors to partner with IBM. WTP was discussed in a BOF session at the first EclipseCon conference held in February 2004, and ObjectWeb agreed to lead the project creation effort. ObjectWeb assembled a set of vendors to join the project and agreed to co-lead the Project Management Committee (PMC). WTP was formally launched in June 2004 based on initial contributions from eteration, Lomboz, and IBM Rational Application Developer.
WTP got further industry endorsement earlier this year when BEA joined the project and announced plans to base a future version of WebLogic Workshop on it. BEA co-leads the PMC along with ObjectWeb. At this year's EclipseCon, Sybase announced the Data Tools Project (DTP), which will add to the data tools in WTP and create a platform layer dedicated to database access. Oracle and Borland also announced Eclipse projects closely related to WTP. With major vendors such as IBM, BEA, Borland, Oracle, and Sybase all co-operating on a shared Open Source tool infrastructure, the center of gravity for J2EE tools has clearly shifted to Eclipse.
WTP 0.7 development is now well underway and has released a series of milestone drivers that can be downloaded from http://eclipse.org/webtools. The final release of WTP 0.7 is on track for a July 2005 delivery. The rest of this article gives you an overview of WTP, its scope, design principles, architecture, ecosystem, and plans.
A Quick Tour of WTP
One way to understand WTP is that it extends Eclipse along two dimensions, namely execution environments and artifact types. The execution environment dimension defines where code runs. Out-of-the-box, Eclipse lets you develop Java main programs that run in a command shell, applets that run in a Web browser, JUnit tests that run in a JUnit runner, and ANT tasks that run in ANT. WTP extends Eclipse by adding servers in general, and both J2EE and database servers in particular, as new execution environments. In general, you need to install an execution environment, configure it in Eclipse, and associate it with development artifacts that you want to run in it.
One of the key design goals of WTP is to extend Eclipse seamlessly to support these additional execution environments and artifact types. All of the functions that Eclipse users have come to expect from Java source code should "just work" for the new artifacts. For example, if I select a Java main program, I can Run or Debug it. The same should apply to a JSP. When I select it, the Run command should do something sensible. Specifically for a JSP I expect the Run command to somehow deploy my code into a J2EE server and launch a Web browser with the URL for my JSP. Similarly, the Debug command should run my J2EE server in debug mode and the standard Eclipse Debugger should let me step through my JSP source code. My JSP editor should provide code completion for both JSP tags and inlined Java scriptlets. Furthermore, I expect the code completion for Java scriptlets to work exactly like the code completion for Java source files. I don't want to learn new editing commands simply because I'm editing a new artifact type.
WTP 0.7 achieves many of these goals but there is much work to do to support J2EE fully. Consider the problem of refactoring a J2EE application. An operation as simple as renaming a Java class can have many consequences. If the renaming isn't fully rippled through the application, a runtime error can occur. For example, in addition to references from other Java classes, a Java class can be referenced by JSPs and deployment descriptors. All of these artifacts must be updated to reflect the new name. Suppose the Java class is deployed as a Web Service and that WSDL is generated from it. The WSDL may also need to be regenerated. First-class refactoring of J2EE applications will be an ongoing focus for WTP.
Now let's create a JSP version of "Hello, world." If you'd like to follow along, you'll need to do some setup. Download and install the latest stable driver of WTP from the Web site mentioned above. WTP provides support for many popular commercial and Open Source J2EE servers but doesn't include the runtimes. So you also need to install a server on your machine. For purposes of illustration, I'll use Apache Tomcat 5.0.28, which you can obtain from http://jakarta.apache.org/tomcat/. Finally, you'll need a full JDK since JSPs require a Java compiler. I'm using Sun J2SDK 1.4.2_06.
WTP provides a Preference page for Servers. Open the Preference dialog and go to the Server page. Add your Tomcat 5.0 server and configure it to use your JDK (if you use a JRE then JSP compilation will fail). Figure 1 shows the Server Preference page.
Next, create a new Flexible Java Project named Project1 and a new J2EE Web module named Web1 in it. A Flexible Java Project is a J2EE project that can hold several J2EE modules. Figure 2 shows the J2EE Project Explorer after Project1 and Web1 have been created.
Now we're ready to create our JSP. Select the WebContent folder of the Web1 module and use the New File wizard to create a JSP named hello-world.jsp. The wizard fills in the skeleton of a JSP document and opens the file with the JSP editor. The JSP editor has full content assist for HTML and JSP tags, as well as Java scriptlets. Edit the file to say "Hello, world" and save it. Figure 3 shows the JSP editor.
|obinna kalu 10/21/05 01:04:24 PM EDT|
Oh yes!!! The Eclipse WTP toolset has been such a fantastic breath of fresh air to the development of enterprise web applications for the java platform. I downloaded and trialed the version 0.7 stable release last July 2005,and I must say it was simply brilliant. Having wondered, in the preceeding months, where to find a good, non-commercial IDE for doing java web development and having been managing with sysdeo's tomcat plug-in and other plugins that do some quasi html/xml tag coloring, discovering WTP 0.7 was a big blessing. I look forward to versions 1.0 and subsequently 1.5 with great enthusiasm.
|Eclipse News 10/19/05 08:39:49 PM EDT|
The Eclipse Open Source Integrated Development Environment (IDE) (see http://eclipse.org) is rapidly gaining popularity among Java developers primarily because of its excellent Java Development Tools (JDT) and its highly extensible plug-in architecture. Extensibility is, in fact, one of the defining characteristics of Eclipse. As the Eclipse home page says, 'Eclipse is a kind of universal tool platform - an open extensible IDE for anything and nothing in particular.'
|Rui Wang 08/30/05 10:41:38 AM EDT|
Hello,sir.I'm a developer from China.I like your article.However,what does EDJ mean?I really don't know.Can you tell me?Thank you
|Serge Baccou's Blog 07/21/05 06:04:48 PM EDT|
Trackback Added: Eclipse Web Tools Platform (WTP); Eclipse Web Tools Platform (WTP) extends Eclipse for web developments and/or J2EE developments. WTP is useful for people who develop web sites or J2EE applications using Eclipse. This note presents WTP but also talks about WST, JST, EMF, XSD, SDO, GEF ...
|Eclipse News Desk 07/18/05 12:57:38 PM EDT|
Eclipse.Org Exclusive: Web Tools Platform And J2EE Development The Eclipse Way
|Eclipse News Desk 07/18/05 09:32:44 AM EDT|
Eclipse.Org Web Tools Platform: J2EE Development the Eclipse Way. The Eclipse Open Source Integrated Development Environment (IDE) (see http://eclipse.org) is rapidly gaining popularity among Java developers primarily because of its excellent Java Development Tools (JDT) and its highly extensible plug-in architecture. Extensibility is, in fact, one of the defining characteristics of Eclipse. As the Eclipse home page says, 'Eclipse is a kind of universal tool platform - an open extensible IDE for anything and nothing in particular.'
Fortunately, meaningful and tangible business cases for IoT are plentiful in a broad array of industries and vertical markets. These range from simple warranty cost reduction for capital intensive assets, to minimizing downtime for vital business tools, to creating feedback loops improving product design, to improving and enhancing enterprise customer experiences. All of these business cases, which will be briefly explored in this session, hinge on cost effectively extracting relevant data from ...
Feb. 8, 2016 03:00 PM EST
SYS-CON Events announced today that VAI, a leading ERP software provider, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. VAI (Vormittag Associates, Inc.) is a leading independent mid-market ERP software developer renowned for its flexible solutions and ability to automate critical business functions for the distribution, manufacturing, specialty retail and service sectors. An IBM Premier Business Part...
Feb. 8, 2016 03:00 PM EST Reads: 572
SYS-CON Events announced today that Alert Logic, Inc., the leading provider of Security-as-a-Service solutions for the cloud, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Alert Logic, Inc., provides Security-as-a-Service for on-premises, cloud, and hybrid infrastructures, delivering deep security insight and continuous protection for customers at a lower cost than traditional security solutions. Ful...
Feb. 8, 2016 02:00 PM EST Reads: 373
SYS-CON Events announced today that Interoute, owner-operator of one of Europe's largest networks and a global cloud services platform, has been named “Bronze Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. Interoute is the owner-operator of one of Europe's largest networks and a global cloud services platform which encompasses 12 data centers, 14 virtual data centers and 31 colocation centers, with connections to 195 ad...
Feb. 8, 2016 12:45 PM EST Reads: 355
As enterprises work to take advantage of Big Data technologies, they frequently become distracted by product-level decisions. In most new Big Data builds this approach is completely counter-productive: it presupposes tools that may not be a fit for development teams, forces IT to take on the burden of evaluating and maintaining unfamiliar technology, and represents a major up-front expense. In his session at @BigDataExpo at @ThingsExpo, Andrew Warfield, CTO and Co-Founder of Coho Data, will dis...
Feb. 8, 2016 12:30 PM EST Reads: 138
SYS-CON Events announced today that Commvault, a global leader in enterprise data protection and information management, has been named “Bronze Sponsor” of SYS-CON's 18th International Cloud Expo, which will take place on June 7–9, 2016, at the Javits Center in New York City, NY, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Commvault is a leading provider of data protection and information management...
Feb. 8, 2016 10:45 AM EST Reads: 382
The cloud promises new levels of agility and cost-savings for Big Data, data warehousing and analytics. But it’s challenging to understand all the options – from IaaS and PaaS to newer services like HaaS (Hadoop as a Service) and BDaaS (Big Data as a Service). In her session at @BigDataExpo at @ThingsExpo, Hannah Smalltree, a director at Cazena, will provide an educational overview of emerging “as-a-service” options for Big Data in the cloud. This is critical background for IT and data profes...
Feb. 8, 2016 09:30 AM EST Reads: 153
With the Apple Watch making its way onto wrists all over the world, it’s only a matter of time before it becomes a staple in the workplace. In fact, Forrester reported that 68 percent of technology and business decision-makers characterize wearables as a top priority for 2015. Recognizing their business value early on, FinancialForce.com was the first to bring ERP to wearables, helping streamline communication across front and back office functions. In his session at @ThingsExpo, Kevin Roberts...
Feb. 7, 2016 12:00 PM EST Reads: 352
With an estimated 50 billion devices connected to the Internet by 2020, several industries will begin to expand their capabilities for retaining end point data at the edge to better utilize the range of data types and sheer volume of M2M data generated by the Internet of Things. In his session at @ThingsExpo, Don DeLoach, CEO and President of Infobright, will discuss the infrastructures businesses will need to implement to handle this explosion of data by providing specific use cases for filte...
Feb. 7, 2016 10:15 AM EST Reads: 128
SYS-CON Events announced today that Fusion, a leading provider of cloud services, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Fusion, a leading provider of integrated cloud solutions to small, medium and large businesses, is the industry's single source for the cloud. Fusion's advanced, proprietary cloud service platform enables the integration of leading edge solutions in the cloud, including clou...
Feb. 6, 2016 03:30 PM EST Reads: 735
Most people haven’t heard the word, “gamification,” even though they probably, and perhaps unwittingly, participate in it every day. Gamification is “the process of adding games or game-like elements to something (as a task) so as to encourage participation.” Further, gamification is about bringing game mechanics – rules, constructs, processes, and methods – into the real world in an effort to engage people. In his session at @ThingsExpo, Robert Endo, owner and engagement manager of Intrepid D...
Feb. 5, 2016 09:00 PM EST Reads: 795
Eighty percent of a data scientist’s time is spent gathering and cleaning up data, and 80% of all data is unstructured and almost never analyzed. Cognitive computing, in combination with Big Data, is changing the equation by creating data reservoirs and using natural language processing to enable analysis of unstructured data sources. This is impacting every aspect of the analytics profession from how data is mined (and by whom) to how it is delivered. This is not some futuristic vision: it's ha...
Feb. 2, 2016 02:00 PM EST Reads: 417
WebRTC has had a real tough three or four years, and so have those working with it. Only a few short years ago, the development world were excited about WebRTC and proclaiming how awesome it was. You might have played with the technology a couple of years ago, only to find the extra infrastructure requirements were painful to implement and poorly documented. This probably left a bitter taste in your mouth, especially when things went wrong.
Feb. 2, 2016 04:30 AM EST Reads: 859
Learn how IoT, cloud, social networks and last but not least, humans, can be integrated into a seamless integration of cooperative organisms both cybernetic and biological. This has been enabled by recent advances in IoT device capabilities, messaging frameworks, presence and collaboration services, where devices can share information and make independent and human assisted decisions based upon social status from other entities. In his session at @ThingsExpo, Michael Heydt, founder of Seamless...
Feb. 1, 2016 05:00 AM EST Reads: 950
The IoT's basic concept of collecting data from as many sources possible to drive better decision making, create process innovation and realize additional revenue has been in use at large enterprises with deep pockets for decades. So what has changed? In his session at @ThingsExpo, Prasanna Sivaramakrishnan, Solutions Architect at Red Hat, discussed the impact commodity hardware, ubiquitous connectivity, and innovations in open source software are having on the connected universe of people, thi...
Jan. 31, 2016 09:00 PM EST Reads: 733
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 WebRTC Summit, Cary Bran, VP of Innovation and New Ventures at Plantronics and PLT Labs, provided an overview of this technological shift, including associated business and consumer communications impacts, and opportunities it may enable, complement or entirely transform.
Jan. 31, 2016 07:15 PM EST Reads: 1,155
For manufacturers, the Internet of Things (IoT) represents a jumping-off point for innovation, jobs, and revenue creation. But to adequately seize the opportunity, manufacturers must design devices that are interconnected, can continually sense their environment and process huge amounts of data. As a first step, manufacturers must embrace a new product development ecosystem in order to support these products.
Jan. 31, 2016 10:00 AM EST Reads: 819
There are so many tools and techniques for data analytics that even for a data scientist the choices, possible systems, and even the types of data can be daunting. In his session at @ThingsExpo, Chris Harrold, Global CTO for Big Data Solutions for EMC Corporation, showed how to perform a simple, but meaningful analysis of social sentiment data using freely available tools that take only minutes to download and install. Participants received the download information, scripts, and complete end-t...
Jan. 31, 2016 10:00 AM EST Reads: 1,229
Manufacturing connected IoT versions of traditional products requires more than multiple deep technology skills. It also requires a shift in mindset, to realize that connected, sensor-enabled “things” act more like services than what we usually think of as products. In his session at @ThingsExpo, David Friedman, CEO and co-founder of Ayla Networks, discussed how when sensors start generating detailed real-world data about products and how they’re being used, smart manufacturers can use the dat...
Jan. 30, 2016 07:45 PM EST Reads: 796
When it comes to IoT in the enterprise, namely the commercial building and hospitality markets, a benefit not getting the attention it deserves is energy efficiency, and IoT’s direct impact on a cleaner, greener environment when installed in smart buildings. Until now clean technology was offered piecemeal and led with point solutions that require significant systems integration to orchestrate and deploy. There didn't exist a 'top down' approach that can manage and monitor the way a Smart Buildi...
Jan. 30, 2016 03:45 PM EST Reads: 1,279