Welcome!

IBM Cloud Authors: Pat Romanski, Liz McMillan, Yeshim Deniz, Carmen Gonzalez, Elizabeth White

Related Topics: IBM Cloud, Java IoT, Recurring Revenue

IBM Cloud: Blog Feed Post

Oracle Dynamic Tabs Shell - ADF 11gR1 – UI Shell

This template is part of Oracle's ADF Functional Patterns and Best Practices efforts

Java Developer Magazine on Ulitzer

In the latest release of JDeveloper, specifically 11.1.1.2.0 also known as 11g Release 1 also known as Patch Set 1 also known as 11g build 5536 also known as the Shepherd build (cough cough Oracle), Oracle has included a new built in page template known as the "Oracle Dynamic Tabs Shell". This template is part of Oracle's ADF Functional Patterns and Best Practices efforts, also referred to as the "UI Shell". Complete documentation is available here. I'll leave readers unfamiliar with the UI Shell to read Oracle's documentation to understand the basics.

With my current client we're happy with the inclusion of this new UI Shell and we can actively see ourselves using it in the near future. What I wanted to document is my own thoughts and research which may be of use to others, and I hope to further the discussion on the ADF EMG. Note as usual your mileage may vary so take time out to check the facts listed here:

1) The Create JSF Page dialog presents the "Oracle Dynamic Tabs Shell" page template option:


2) The template and its supporting classes are installed in <jdev_home>/jdeveloper/adfv/jlib/oracle-page-templates-ext.jar, though the JDev IDE takes care of importing the template and classes/libraries into your project for you once selected in the Create JSF Page dialog. As the following picture shows an additional library Oracle Extended Page Templates is added to your project:

Side note: Steve Muench has blogged the location of the UI Shell template and supporting classes as a separate download here. This will allow you to take the default UI Shell template and customise to your needs if required. See further points below for why this may be necessary.

2) Our technical team was already getting bogged down in "discussions" of "standard" web page layouts versus RIA layouts. The technical team knows the standard web page layouts weren't suited to RIA applications, but it was hard to argue our case without actually creating a RIA layout. In turn creating a RIA layout that we were happy with was going to take some time, and we're building applications now. With the UI Shell we can short cut the layout "discussions", say this is what Oracle's provided us, it works well and this is what we'll use, allowing us to focus on the more important matter of hand and that's writing the ADF solution for the business.

3) Our overall application is made up of several subsystems (think Oracle Apps with HR, Procurement, Payroll etc). Within the UI Shell the globalTabs facet provides an ideal location to list the subsystems allowing the user to switch between each module:

4) Each subsystem gets its own page based on the template, as in hr.jspx, procurement.jspx and payroll.jspx based on our example.

5) The rest of the application is made up of a number "Activities" that in essence are bounded task flows using page fragments, or in other words the business processes of your application. Each subsystem is free to make use of as many bounded task flows as it sees fit, and in addition a bounded task flow can be used (shared) by many of the subsystem pages.

6) As per the previous point, if you're using the default UI Shell provided through JDeveloper rather than downloading the UI Shell as per Steve Muench's blog above, and you wish to have a common element in every page using the template, you'll need to code them in every page which isn't ideal. The solution is to download Oracle's template and customise it within your own application (or possibly create a number of declarative page components for repetitive content, though this will still require you to load each page component in each page based on the UI Shell template).

7) A key feature of the UI Shell as described in its other name "Oracle Dynamic Tabs Shell" is it shows under each subsystem how to launch a bounded task flow (aka Activity) one or many times:

This may not be ideal for every application, but my current client has a scenario in an existing Oracle Forms application where users open up to 4 sessions. While we're not sure on building an ADF equivalent with a chance to redesign the users' workflow will they still need to do this, if they do we're envisaging that each session can now be as a separate UI Shell Activity under the subsystem page.

8) As discussed in the following ADF EMG thread the UI Shell makes a great addition to the "Master JDev Application Workspace" proposed by Todd Hill bringing a number of composite ADF bounded task flows together.

9) The demonstration UI Shell application shows a basic mechanism of stopping a user leaving an activity once they've made "it dirty". The analogy to this is in the JDev IDE when the user changes the contents of a source file, the tab control title font becomes italic and the user is warned/prompted to save changes if they attempt to close the tab without saving.

Currently this feature should be considered a demonstration feature only as in the downloadable UI Shell demonstration application it has a number of limitations (it is a demo after all). In particular the isDirty() check is only done within a subsystem's activities. Clicking on a different subsystem tab/page doesn't invoke the isDirty() check with the appropriate warning dialog. It would be my assumption that this check would need to be coded in each specific application, reusing the isDirty() facilities provided.

10) For the logoImagePath attribute you can specify the path of the UI Shell log image, but not the size. In the turn the layout tends to assume a horizontal logo. If corporate branding is important to your organisation and they have a long vertical logo, good luck.

11) The default UI Shell has no consideration of security. For instance what subsystems are available under the globalTabs for the current user is your responsibility

12) The overall template does waste some vertical screen real-estate:

See annotations A, B and C.

A can be trimmed by setting the globalSplitterPosition attribute. At this time it doesn't look like B and C can be set in the default UI Shell. Ideally we'd want something like this:

13) The overall template is extremely small – only 74k – wow, Oracle can create something that doesn't take up an entire CD! ;-)

14) I note in the source code downloadable from Steve Muench's blog that there are a few comments that the implementation will change dependent on later updates to the ADF component set presumably available in later JDev releases (ie. see the TabContext.java REMOVE_ME_WHEN_NAVPANE_SUPPORTS_STAMPING comment).

This implies the default functionality of the UI Shell could change in the future which could have issues for your existing applications based on the UI Shell and therefore your regression testing and user experience. It may be necessary to source the UI Shell code and baseline in your code repository rather than being subjected to changes in functionality on upgrading to future JDev releases.

15) As per the UI Shell whitepaper, the 7 zillion steps to reproduce the demonstration UI Shell application do look daunting. However if you're familiar with JDev, page templates and constructing JSF pages it only takes about 20-30 minutes to run through most of the steps. In fact most steps are just setting up dummy task flows and page fragments to show some content within the produced template, nothing really to do with the template itself.

16) You'll need to remind users/analysts/managers etc that what the UI Shell gives in preconfigured layouts, saving developers time and boosting productivity, it takes away in customizable layout of the screen. This is a common point of contention in component based frameworks where a super component gives a large array of features, but the component works as the component works and cannot be easily customised without headache.

Read the original blog entry...

More Stories By Chris Muir

Chris Muir, an Oracle ACE Director, senior developer and trainer, and frequent blogger at http://one-size-doesnt-fit-all.blogspot.com, has been hacking away as an Oracle consultant with Australia's SAGE Computing Services for too many years. Taking a pragmatic approach to all things Oracle, Chris has more recently earned battle scars with JDeveloper, Apex, OID and web services, and has some very old war-wounds from a dark and dim past with Forms, Reports and even Designer 100% generation. He is a frequent presenter and contributor to the local Australian Oracle User Group scene, as well as a contributor to international user group magazines such as the IOUG and UKOUG.

@ThingsExpo Stories
Recently, WebRTC has a lot of eyes from market. The use cases of WebRTC are expanding - video chat, online education, online health care etc. Not only for human-to-human communication, but also IoT use cases such as machine to human use cases can be seen recently. One of the typical use-case is remote camera monitoring. With WebRTC, people can have interoperability and flexibility for deploying monitoring service. However, the benefit of WebRTC for IoT is not only its convenience and interopera...
The 22nd International Cloud Expo | 1st DXWorld Expo has announced that its Call for Papers is open. Cloud Expo | DXWorld Expo, to be held June 5-7, 2018, at the Javits Center in New York, NY, brings together Cloud Computing, Digital Transformation, Big Data, Internet of Things, DevOps, Machine Learning 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 busin...
SYS-CON Events announced today that Synametrics Technologies will exhibit at SYS-CON's 22nd International Cloud Expo®, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Synametrics Technologies is a privately held company based in Plainsboro, New Jersey that has been providing solutions for the developer community since 1997. Based on the success of its initial product offerings such as WinSQL, Xeams, SynaMan and Syncrify, Synametrics continues to create and hone inn...
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...
No hype cycles or predictions of a gazillion things here. IoT is here. You get it. You know your business and have great ideas for a business transformation strategy. What comes next? Time to make it happen. In his session at @ThingsExpo, Jay Mason, an Associate Partner of Analytics, IoT & Cybersecurity at M&S Consulting, presented a step-by-step plan to develop your technology implementation strategy. He also discussed the evaluation of communication standards and IoT messaging protocols, data...
Product connectivity goes hand and hand these days with increased use of personal data. New IoT devices are becoming more personalized than ever before. In his session at 22nd Cloud Expo | DXWorld Expo, Nicolas Fierro, CEO of MIMIR Blockchain Solutions, will discuss how in order to protect your data and privacy, IoT applications need to embrace Blockchain technology for a new level of product security never before seen - or needed.
In his session at 21st Cloud Expo, Raju Shreewastava, founder of Big Data Trunk, provided a fun and simple way to introduce Machine Leaning to anyone and everyone. He solved a machine learning problem and demonstrated an easy way to be able to do machine learning without even coding. Raju Shreewastava is the founder of Big Data Trunk (www.BigDataTrunk.com), a Big Data Training and consulting firm with offices in the United States. He previously led the data warehouse/business intelligence and B...
Cloud Expo | DXWorld Expo have announced the conference tracks for Cloud Expo 2018. Cloud Expo will be held June 5-7, 2018, at the Javits Center in New York City, and November 6-8, 2018, at the Santa Clara Convention Center, Santa Clara, CA. Digital Transformation (DX) is a major focus with the introduction of DX Expo within the program. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive ov...
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, whic...
"Evatronix provides design services to companies that need to integrate the IoT technology in their products but they don't necessarily have the expertise, knowledge and design team to do so," explained Adam Morawiec, VP of Business Development at Evatronix, in this SYS-CON.tv interview at @ThingsExpo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Recently, REAN Cloud built a digital concierge for a North Carolina hospital that had observed that most patient call button questions were repetitive. In addition, the paper-based process used to measure patient health metrics was laborious, not in real-time and sometimes error-prone. In their session at 21st Cloud Expo, Sean Finnerty, Executive Director, Practice Lead, Health Care & Life Science at REAN Cloud, and Dr. S.P.T. Krishnan, Principal Architect at REAN Cloud, discussed how they built...
Digital Transformation (DX) is not a "one-size-fits all" strategy. Each organization needs to develop its own unique, long-term DX plan. It must do so by realizing that we now live in a data-driven age, and that technologies such as Cloud Computing, Big Data, the IoT, Cognitive Computing, and Blockchain are only tools. In her general session at 21st Cloud Expo, Rebecca Wanta explained how the strategy must focus on DX and include a commitment from top management to create great IT jobs, monitor ...
"Digital transformation - what we knew about it in the past has been redefined. Automation is going to play such a huge role in that because the culture, the technology, and the business operations are being shifted now," stated Brian Boeggeman, VP of Alliances & Partnerships at Ayehu, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
In his Opening Keynote at 21st Cloud Expo, John Considine, General Manager of IBM Cloud Infrastructure, led attendees through the exciting evolution of the cloud. He looked at this major disruption from the perspective of technology, business models, and what this means for enterprises of all sizes. John Considine is General Manager of Cloud Infrastructure Services at IBM. In that role he is responsible for leading IBM’s public cloud infrastructure including strategy, development, and offering m...
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...
Nordstrom is transforming the way that they do business and the cloud is the key to enabling speed and hyper personalized customer experiences. In his session at 21st Cloud Expo, Ken Schow, VP of Engineering at Nordstrom, discussed some of the key learnings and common pitfalls of large enterprises moving to the cloud. This includes strategies around choosing a cloud provider(s), architecture, and lessons learned. In addition, he covered some of the best practices for structured team migration an...
With tough new regulations coming to Europe on data privacy in May 2018, Calligo will explain why in reality the effect is global and transforms how you consider critical data. EU GDPR fundamentally rewrites the rules for cloud, Big Data and IoT. In his session at 21st Cloud Expo, Adam Ryan, Vice President and General Manager EMEA at Calligo, examined the regulations and provided insight on how it affects technology, challenges the established rules and will usher in new levels of diligence arou...
22nd International Cloud Expo, taking place June 5-7, 2018, at the Javits Center in New York City, NY, and co-located with the 1st DXWorld Expo 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 ...
22nd International Cloud Expo, taking place June 5-7, 2018, at the Javits Center in New York City, NY, and co-located with the 1st DXWorld Expo 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 ...