Beans and Java! We hear those buzz words all the time, but our XPages applications seem to work fine with Server Side JavaScript. Why should we use Java and managed beans? Come learn about one long-time Notes developer's journey using a Java Managed Bean and why. Discover how a Bean allowed the data to be cached in memory allowing for quick access to user-selected data subsets. Learn how different Java collections like HashMaps, ArrayLists and TreeSets can be used to build in-memory objects of your data. See how using a Managed Bean can simplify and greatly speed up your XPage! A comparison will be made of the performance savings before and after the implementation of the Managed Bean. Come get gently led down the path to the pot of Java waiting at the end of the rainbow! Click here to download the sample application used in the webinar: http://www.tlcc.com/admin/tlccsite.nsf/pages/feb-java-webinar?opendocument

1. A Notes Developer's Journey into Java
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And mention us: @Teamstudio @TLCCLTD
Feb. 17, 2015

2. @Teamstudio
teamstudio.com
@TLCCLTD
tlcc.com
Courtney Carter
Inbound Marketing Specialist
Teamstudio

3. Who We Are
• Teamstudio’s background is in creating tools for
collaborative computing in mid-size and large
enterprises, primarily for IBM Notes
• Easy-to-use tools for developers and administrators
• 1600+ active customers, 53 countries
• Offices in US, UK, and Japan
• Entered mobile space in 2010 with Unplugged: easy
mobilization of Notes apps to Blackberry, Android
and iOS

4. Teamstudio Unplugged
• Your mobile Domino server: take your IBM Notes
apps with you!
• End-users access Notes applications from mobile
devices whether online or offline
• Leverages the powerful technology of XPages

5. Unplugged Templates
• Continuity – Mobile offline access to
BCM programs
• OneView Approvals – Expense
approvals; anywhere, anytime
• CustomerView – lightweight CRM
framework for field sales and field
service teams
• Contacts – customer information database
• Activities – customer activity log
• Media – mobile offline file storage and access

6. XControls
• Set of Controls for IBM Domino XPages developers
working on new XPages apps and on app
modernization projects
• Re-write of the Teamstudio Unplugged Controls
project, but adds full support for PC browser-based
user interfaces as well as mobile interfaces
• Enables XPages developers to create controls that
are responsive
• Learn more: http://xcontrols.org

7. Teamstudio Services
• Professional services for modernization, web
enablement, project management, development,
and administration
o Modernization Services
o Unplugged Developer Assistance Program
o Application Upgrade Analysis
o Application Complexity Analysis
o Application Usage Auditing
• http://www.teamstudio.com/solutions/services/

8. • Usage Auditing promotion:
o Now through Mar. 31, 2015, sign up for a free demo of Usage Auditing, and be
entered to win a Nexus 6.
• Engage: Mar. 30-31, 2015
o Come see us in Ghent, Belgium for a chance to win an iPhone 6!

9. 1
#XPages
Your Host Today:
Paul Della-Nebbia
TLCC
@PaulDN
A Notes Developer’s Journey
Into Java

10. How can TLCC Help YOU!
2
• Private classes at
your location or
virtual
•XPages Development
•Support Existing Apps
•Administration
• Let us help you
become an expert
XPages developer!
• Delivered via Notes
• XPages
• Development
• Admin
• User
Self-
Paced
Courses
Mentoring
Instructor-
Led
Classes
Application
Development
and
Consulting
Free
Demo
Courses!

11. TLCC Java Courses and Package for XPages Developers
Java 1 for XPages Development (9.0)
• Covers the Java Language
Java 2 for XPages Development
• Debugging
• Expression Language
• JavaBeans and Managed Beans
• Third Party Java Libraries
• Exporting to PDF and Excel files
• On Sale for $599, save $300
Java for XPages Package
• Has both Java courses
• On Sale for only $999, save $700
3
Click here for more information on the Java courses
Sale prices good through 3/15/2015

12. Upcoming and Recorded Webinars
4
• March 17th - Presenting Data - Two Alternatives to the View Control
www.tlcc.com/xpages-webinar
View Previous Webinars
(use url above)

13. Asking Questions – Q and A at the end
5
Use the Orange Arrow button to
expand the GoToWebinar panel
Then ask your questions in the
Questions pane!
We will answer your questions
verbally at the end of the
webinar

14. Your Presenter Today:
6
#XPages
Howard Greenberg
TLCC
@TLCCLtd

15. Intro - A Notes Developer’s Journey into Java
• Been doing object oriented
programming with LotusScript
• Used Java before in agents and
web services, and snippets in
XPages
• Helped write TLCC’s Java courses
since R5
7
Join me on my journey with a Java Managed Bean

16. TLCC Catalog – “Before”
• User chooses a version
• Then load the category names into scoped
variables
XPages, LotusScript, etc.
• User then selects type or category
• Repeat control figures out what to show
– Uses FT search
• Change anything and it all reloads
• Hard to control order
8

17. End Goal
• Improve Performance
• Simpler Implementation
• Reusable Architecture for future enhancements
– Mobile design
– Different layout using Bootstrap
9

18. Solution – Managed Bean
• Rough idea of what was needed…
• Data kept in memory
– Be careful here
• Return a collection of Strings for Types and Categories for each version
• Be able to get a collection of all courses for:
– A specific version
– A type within that version (Dev or Admin)
– A category for that version (XPages, Java, etc.)
– A category within that type for that version
• Then for each course return information to display
– Name
– Price
– Short Description
– And more from the view columns
– But NOT the actual catalog document contents
• that is another XPage
10

19. What is a Java Bean?
A JavaBean is a Java class that:
• Uses getter and setter methods to access its property
elements
• Encapsulates many objects into a single bean object
JavaBean Requirements/Conventions
For a Java class to be considered a "bean" it must:
• Have a public no-argument constructor (or no constructors)
• The class properties (fields) must be defined as private
• Uses public method calls that start with get, set, or is
• Implements java.io.Serializable interface to be technically
qualified as a JavaBean
– Important for XPages if they are serialized to disk
– Reminder!!! Don’t EVER store a Domino object in a bean
or scoped variable
11

20. 12
Sample Bean

21. What is a Managed Bean?
• Bean registered with defined scope in the runtime
framework
– getter and setter methods are called directly
– No need to instantiate an object variable for the bean
• Follows all of the same conventions as a Java Bean
• Programming a Java Bean is the same as a Managed Bean
– Nothing in the Java source defines a "Managed Bean“
• For XPages, defined in Faces-config
13

22. Objects
• Versions – collection of versions, each version holds a types
object
– R9, R85, R8
• Types – each type holds a Categories object that has the
categories for that type
– Dev or Admin
• Categories – each category holds a CourseList
– XPages, Java, LotusScript
• CourseList
– Holds a collection of courses
• Course
– Holds details about a particular course
14

23. Object Definition
•Name
•Price
•etc
Course
•ArrayList
•Holds Courses
Course List
•LinkedHashMap
•Key: Category Name
•Value: CourseList for
that category
CategoryTable
•LinkedHashMap
•Key: Type Name
•Value: CategoryTable
TypeTable
15

24. Java Environment
• Domino Designer is built on Eclipse
– Full Java development platform
• Java Perspective
–Window, Open Perspective
16

25. Java Useful Collections - ArrayList
• ArrayLists are like Arrays but:
– Part of the Collection class
– Don’t have to set a size like Arrays
– Can use Generics
• ArrayList<Course> CourseList = new ArrayList<Course>();
– Add using:
• add(object) – CourseList.add(newCourse)
• addAll(collection of objects)
–CourseList.addAll(setOfCourses)
– Useful in Repeats!
• Pass an ArrayList to a repeat value property
17

26. Java Collections - LinkedHashMap
• Holds a key – value pair
• Maintains Insertion Order
• Create:
– LinkedHashMap<String, CoursesList> CatTable;
• Set and access a value:
– CatTable.put(“XPages Courses”, CourseList);
– CatTable.get(“XPages Courses”)
• To loop through:
– All entries: CatTable.entrySet()
– Keys only: CatTable.keyset()
– Values only: CatTable.values()
18

27. Choosing a Collection
• Key considerations
– Automatic Sorting
• TreeSet, TreeMap
– Maintains Insertion Order
• LinkedHashSet, Linked HashMap
– Holds Key,Value pairs
• HashMap, TreeMap,
LinkedHashMap
– Duplicates
• ArrayList
• Most Often Used!
– ArrayList
– LinkedHashMap
– TreeMap
19

28. Which Collection to Use? A Handy Flow Chart
20
http://www.sergiy.ca/guide-to-selecting-appropriate-map-collection-in-java/
http://www.janeve.me/articles/which-java-collection-to-use

29. Managed Beans in XPages
• Implemented in faces-config.xml
• Choose scope (or don’t: then bean gets instantiated on every access)
• Can set values of properties in faces-config via managed-property
• Initialize values using:
– Constructor in bean (remember, no arguments)
– Using the setters
– Managed-property in faces-config file
• Bean reloads if you change Java code (no need to restart HTTP)
<managed-bean>
<description>description</description>
<managed-bean-name>beanName</managed-bean-name>
<managed-bean-class>beanClass</managed-bean-class>
<managed-bean-scope>beanScope</managed-bean-scope>
</managed-bean>
21

30. Accessing Beans in XPages via SSJS
• No need to declare or instantiate bean
– beanName.getPropertyName();
– beanName.setPropertyName();
• Examples:
– catalogBean.getTypes();
– catalogBean.getAllCoursesByCategory(typeVal, interestVal);
22

31. Accessing a Bean via Expression Language
• Preferred way (compared to SSJS)
– beanName.propertyName
• Don’t add get or is in front of name, watch case
– (use leading lowercase even though method has
uppercase)
– If Java code was “public List<String> getTypes(){…”
catalogBean.types
• Can not pass in parameters
23

32. Performance Gains (total load time)
24
Task Before Bean After Bean
Initial Access 1,350ms 598ms
Change versions 657ms 231ms
Select type 352ms 235ms
Choose category 352ms 120ms

33. Back End Profiler (XPages Toolbox) – Change Versions
25
Without Bean:
2787 calls
188ms
With Bean:
146 calls
0ms

34. 26
Our Bean is roasted…(In other words, that is the end)

35. TLCC Java Courses and Package for XPages Developers
Java 1 for XPages Development (9.0)
• Covers the Java Language
Java 2 for XPages Development
• Debugging
• Expression Language
• JavaBeans and Managed Beans
• Third Party Java Libraries
• Exporting to PDF and Excel files
• On Sale for $599, save $300
Java for XPages Package
• Has both Java courses
• On Sale for only $999, save $700
27
Click here for more information on the Java courses
Sale prices good through 3/15/2015

36. Questions????
28
Use the Orange Arrow button to
expand the GoToWebinar panel
Then ask your questions in the
Questions panel!
Remember, we will answer your
questions verbally

37. Upcoming Events:
Entwickler Camp, March 2-4th, in Gelsenkirchen, Germany
Engage, March 30/31 in Ghent, Belgium
Question and Answer Time!
29
Teamstudio Questions?
contactus@teamstudio.com
978-712-0924
TLCC Questions?
howardg@tlcc.com paul@tlcc.com
888-241-8522 or 561-953-0095
Howard Greenberg
#XPages
@TLCCLtd
@Teamstudio
@PaulDN
Paul Della-Nebbia Courtney Carter
To learn more about Java in XPages:
Special offer for webinar attendees on TLCC’s Java Package