The document discusses the quick generation of back-end systems using Speedment's Ext Speeder tool, emphasizing its efficiency and automation advantages. It details a step-by-step process to connect to a database, generate code, and deploy within an hour compared to traditional methods that can take up to 24 hours. Speedment's offering includes real-time data filtering, in-memory operations for improved performance, and comprehensive support options for developers.

1. How to Auto Generate a Back-
end in Minutes
Per Minborg & Emil Forslund, Speedment,
Inc.November 9, 2016

2. Every Decision a Developer Makes is a Trade-off
“The best code is
no code at all”

3. Using Code Generation
• Makes the code efficient and short
• Modifications are done once and
applied everywhere
• Minimizes errors
• “DRY” (Don’t Repeat Yourself) vs.
”WET” (We Enjoy Typing)
• “Code your code”

4. About Us
Per Minborg
• Founder of several IT companies
• Lives in Palo Alto
• 20 years of Java experience
• 15+ US patents
• Blog: Minborg’s Java Pot
Emil Forslund
• Back-End Developer
• Lives in Palo Alto
• 8 years of Java experience
• Blog: Age of Java

5. Ext Speeder
Front End
Back End
One End

6. Ext Speeder
• Existing Relational Database
• Graphically Setup REST API
Endpoints
• Generate Complete Back-End
• Deploy Stand-Alone or on a
Java EE Application Server
• Merge Changes in DB Schema into
Application
Ext JS Application

7. API Management
• Define Exactly Which Data to Expose
• Rename tables, columns, etc.
• Create Custom HTTP Paths
• Change Data Format
• Create Virtual Columns

8. Generated Runtime
• Column Oriented In-Memory Cache
• Automatic Reload From Database
• Multi-Threaded Execution
• JSON Encoding
• Secure Socket Layer (SSL)
curl –X GET https://api.example.com/customers
?start=1000
&limit=25
&callback=cb
cb([
{"id":1, "name":"Speedment, Inc.", "region":"North America"},
{"id":2, "name":"Sencha, Inc.", "region":"North America"},
...
]);

9. Workflow
customers.stream()
.filter(…)
.filter(…)
.map(…)
.collect(toList());
Step 1: Connect to DB Step 2: Generate Code Step 3: Deploy
Step 4: Iterate

10. Example: Sales Organization
DB

11. Sales Organization DB – What We Have
• Existing Database
- Customers
- Products
- Salespersons
- Sales
• Millions of Rows
RegionCountry
Office
Customer
Salesperson
Product
Sale
Works at
Sold by
Product sold Sold to
Located in
Lives in
Part of

12. Sales Organization DB – What We Want
Regions Are Stored
in Separate Table
Users Can Filter and
Sort in Real-Time
BufferStore With
Millions of Rows

13. Sales Organization DB – How To Get There
• Launch Ext Speeder
• Connect to the ”Salesinfo” database
• Create API Endpoint for ”Customer” table
• Create Virtual Column ”Region”
• Generate Code
• Run
1. Connect
2. Generate
3. Deploy

14. Sales Organization DB – The Generated REST API
curl –X GET https://api.example.com/customers
?start=1000
&limit=25
&callback=cb
cb([
{"id":1, "name":"Speedment, Inc.", "region":"North America"},
{"id":2, "name":"Sencha, Inc.", "region":"North America"},
...
]);
SecureConnections using SSL
VirtualColumns Make It
PossibleTo Include Data from
OtherTables
ResultsAre ReturnedUsing JSONP

15. Sales Organization DB – How Fast Is It?
• Latency < 10 ms
• 1,000 – 10,000 TPS (Transactions Per Second) per node
• Implementation Time: 5 minutes

16. • Model the database 5 h
• Secure Connection 1
h
• Parse http command 1 h
• Deserialize parameters 1
h
• Manage database connections 1
h
• Convert into SQL 2 h
• Optimize queries 3 h
• Parse database response 2 h
• Format into JSON 1 h
• Send back to Client 1 h
• Write XML config 1 h
• Deploy in Java EE 1 h
• Fix bugs 4 h
• Run Application <1 h
Traditional Back End Development Process
~24 h

17. • Connect to database <1 h
• Select tables and columns <1 h
• Press ”Generate” <1 h
• Deploy in Java EE <1 h
• Run application <1 h
Ext Speeder Back End Development Process
~1 h

18. How To Use

19. Graphical Tool
Tell Ext Speeder Where
To Find Your Database
Press ”Connect”

20. Graphical Tool
Database Changes
Can Be Merged With
the Press of a Button
Press to Generate
Complete Back-End
Database Structure
Illustrated as a Tree
Control Every
Aspect of the
Generated Solution
Feedback In the
Form of Notifications

21. IDE Integration

22. • No Installation Required
• Launch Tool as a Maven Goal
• Regenerate Code from Saved Config File
IDE Integration
Example from NetBeans IDE

23. Supported Databases

24. Deployment Scenarios
• Stand Alone Java SE 8
• Java EE Application Server
- Oracle WebLogic
- Tomcat / TomEE
- Glassfish / Payara
- Wildfly / JBoss
- Jetty

25. Ext JS Compatibility
• Ext JS 6 (BufferedStore)
• Ext JS 5 (BufferedStore)
• Ext JS 4 (Use regular Store with buffered = true)

26. Live Demo

27. Extreme Performance

28. How Ext Speeder improves your performance
• Data Database objects are stored in-memory
• Sort A sorted view of every column resides in-memory
• Filter Resolved without querying the database. In-memory filtering lookup.
• Skip In-memory dictionaries improve skip performance
• Total Number of results are cached for each set of parameters

29. • Open database with US doctors
• 40 million objects
• Comparison with and without Ext Speeder
See full video on www.extspeeder.com
Ext Speeder Back End Development Process

30. User Case :
Extremely Heavy Industries

31. Download Free 30-Day Trial

32. Download Free 30-Day Trial

33. Want Maintenance & Support?
• Up to 5 Developers $ 2,475 / Year
• Every Additional Developer $ 495 / Year
• Renewal: 50% of regular price

34. Need Custom Features Tailored for Your Project?
Contact Sales
sales@extspeeder.com
Additional Database
Connectors
Scale-Out Over
Multiple Nodes
Aggregating
Operators
Create, Update,
Delete...
Connect Several
Databases
Reactive
WebSockets

35. Please Take the Survey in the Mobile App
• Navigate to this session in the mobile app
• Click on “Evaluate Session”
• Respondents will be entered into a drawing to win one of five $50 Amazon gift cards

36. Ext Speeder
http://www.extspeeder.com
Ext JS
https://www.sencha.com/products/extjs/
More Information

37. Thank You!
minborg@speedment.com emil@speedment.com