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Should you use Java or JavaScript to write XPages applications? The answer is yes. XPages facilitates creating great applications written almost entirely in Java and written almost entirely in JavaScript. There are no right or wrong answers, only circumstances and ramifications. The determining factors as what is best for your development team are many and complex. In this presentation Andrew will seek to dispel the myth that there is even a competition. The answer should always be - it depends. Come and see the session and make your own mind up.
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MWLUG 2014
Java versus JavaScript: There really is no competition
Andrew Barickman – PSC Group LLC
About
Practice LeaderChicago Illinois
@ajbarickman
abarickman@psclistens.com
• 20 Years in IBM delivery
• Delivery
• Management
• Sales Support
• Technical Direction
Our Partners
Application Modernization with PSC
PSC views the process of modernizing application platforms from a holistic, enterprise perspective. Building from our Hub Services, our AMC provides extensive services in each of three critical areas – providing our clients with a 360o View of the process.
Introduction
• What this session is NOT– Deep technical explanations of how each works– The proclamation of which is better
• What can we agree upon– Both are important to developing cutting edge, elegant,
maintainable applications– Where possible everyone should strive to be proficient with
both
• Thing look different depending on who you are– End Users– Developers– Management
Introduction
JavaScript• Server and Client Side
Language• Used for both UI and core
business logic
Java• Server side language• Primarily used for core
business logic
If I am an End Users
End users want their applications to be:• Elegant• Beautiful• It just works• As far as technology goes…
It is irrelevant
Developers
All time is an investment and comes at the cost of something else you could be learning, therefore don’t waste it.
What should I invest in (first)?
Developers
Popularity
Courtesy of LangPop.com
Who needs Java?
What type of development do you do?
http://www.wissel.net/blog/d6plinks/SHWL-8HHABV
Developers
Why Java over JavaScript?– Programming model in the rest of the
ICS portfolio– You can do things you cannot do with
SSJS. Closer to the core– Open the whole world of Java to you– Code separation– Reusability– Maintainability
Friday 11:30amAD106: Don't fall asleep using Relational Databases: Using Hibernate with
XPages – Toby Samples PSC
Developers
Why JavaScript over Java?– Elegant, beautiful user experiences delight your
users– Client side development versus server side
development
Server side development
Server side components render client side
Core Controls – Standard XPages
New XPages
“XPages is a first class web development platform with benefits”
New XPages
Which would your users rather use?
Client Side Development
Build the best user experience and tie ittogether with the power of Domino
Ajax
Client Side Development
The rise of client side development and JavaScript MVC frameworks
Friday 3pmOS102: Write once, run anywhere - Angular.js in XPages – Mark Roden PSC
Management
• Application development managers must consider the composite skill set of the team
• What is the make up of your current team?
• Do you have classic Notes client developers?
Classic Notes Developers
• Non CS Major• Does not understand
Object Oriented design concepts
• Procedural programmer• Good at solving business
problems not architectural problems
Recommendation: Start with JavaScript add Java later
Case Study #1
What Mergers and Acquisition knowledge management system
WhyPortability, POI, Speed, Supportable by internal staff
HowAngular.js, POI, Custom Java REST Services, Almost No SSJS
Very Large International Professional Services Firm
Case Study #2
What Project Management Portal
WhyNo Java skills internally, supportable by standard Notes devs
HowCustom UI based on XPages control, SSJS, LotusScript
Large Commercial Construction Company
Case Study #3
What Managed resource management and time tracking
WhyNo Java skills internally, supportable by standard Domino web devs
HowMostly SSJS with a lot of front end JavaScript and responsive design
Staffing and Placement Company
Parting Advice– I’m new to XPages and boy there is a lot to learn
• Focus on JavaScript– I’m a CS major and comfortable with Java
• Focus on JavaScript– I’m a longtime XPages programmer and I am writing
kick butt applications without a single line of Java• Learn Java
– I’m a really good web developer just starting with XPages• Learn Java
Questions?
Questions?
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