oracle jet and websocket
TRANSCRIPT
Oracle JET and WebSocket
Andrejus BaranovskisTechnical Expert
ADF, MAF, JET, BPM, ACM, SOA, WebCenter, Cloud
Small Team of Experts, Focused on Technical Quality
Customers – Global Corporations, Medium and Small Business
Oracle Technical Blog – 10 Years (~800 posts)
Oracle Fusion Middleware Partner Community Award for Outstanding ACM/BPM Contribution 2015, Oracle Fusion Middleware Innovation Award 2010, SOA Partner Community Award for Outstanding Contribution Across the Globe 2010
Company Profile
Agenda
Oracle JET and WebSocket Overview
WebSocket Implementation
Oracle JET Implementation
Oracle JET and WebSocket Integration
Live Data Demo
Oracle JET Rendering in ADF
Oracle JET and WebSocket Overview
Oracle JET OverviewOracle JET (JavaScript Extension Toolkit) – a modular toolkit based on modern JavaScript, CSS3,
and HTML5 design and development principles. Leverages popular Open-Source frameworks and
adds advanced functionality:
Rich set of UI components
Advanced two-way binding
Advanced Routing System
Smart Resource Management
Validation framework
Open Source
WebSocket Overview WebSocket is a protocol providing full-duplex communication over a single TCP connection
Allows to open an interactive communication session between the browser and the server
Sends messages to the server and receives responses without having to poll the server for a
reply
Low latency, near real time connection between the client and the server
Designed to work well with existing Web infrastructure
Standardized by the IETF as RFC 6455 in 2011
Supports secure connections and allows bi-directional client/server communication
Supported by WebLogic 12c
Supported by Firefox, Google Chrome, Safari, Internet Explorer and Opera
WebSocket Overview
Direct communication
Scalable and fast
Notifications from back-end
Notifications from client
HTTP traffic reduction
No Pooling
http://www.websocket.org
WebSocket Overview HTTP Performance – police metaphor
Anything new?
NoNoNoNoNo
WebSocket Overview WebSocket Performance – police metaphor
Listening radioand receive order
Delivers order
WebSocket Implementation
WebSocket Implementation Supported by WebLogic 12
Straightforward API – sendObject method
Message encoder/decoder
WebSocket configuration
WebSocket Implementation
WebSocket Implementation Client Side JavaScript
Oracle JET Implementation
Oracle JET Implementation Top level require call executed by application in main.js
Bindings are initialized on page load in ViewModel JS function
Oracle JET Implementation Pie Chart collection and observable array
Automatic UI data re-load through observable
Oracle JET Implementation List observable array and table data source
Automatic UI data re-load through observable
Rate limit configuration
Oracle JET Implementation Pie Chart UI implementation – referencing binding value and format
Oracle JET Implementation List UI implementation – referencing binding value and layout template
Oracle JET and WebSocket Integration
Oracle JET and WebSocket Integration WebSocket client JavaScript integration into JET page
Oracle JET and WebSocket Integration WebSocket connection is initiated on JET load
WebSocket onMessage calls method in JET context
Oracle JET and WebSocket Integration Live data update in JET
Live Data Demo
Live Data Demo DB is updated from separate thread
Each 4 seconds update arrives
JET Chart UI refresh
JET List UI refresh
Oracle JET Rendering in ADF
Oracle JET Rendering in ADF
Oracle JET Rendering in ADF Use cases:
Render live data in ADF through JET island
Build public facing scalable sites with JET and back-office systems with ADF
Possible to use JET island in ADF
ADF timeout does not count activity in JET island
Oracle statement: Should not mix ADF and JET, only in special use cases
No official Oracle support
Oracle JET Rendering in ADF Place JET UI code into ADF Fragment
Oracle JET Rendering in ADF ADF Fragment with JET UI code add into main ADF page with simple Include
Oracle JET Rendering in ADF Add JET CSS into main ADF page using af:resource tag
Contacts
Andrejus Baranovskis
Blog: http://andrejusb.blogspot.com
Web: http://redsamuraiconsulting.com
Email: [email protected]
Phone: +370 640 14737