Eva flex java_1_slides

Communication between JAVA and FLEX
EMEA developer week - 8th of June

© 2010 Adobe Systems Incorporated. All Rights Reserved. Adobe Con dential.

Feel free to contact me

Michaël Chaize
Flash Platform Evangelist

My blog: www.RIAgora.com

@mchaize

©2010 Adobe Systems Incorporated. All Rights Reserved. Adobe Con dential. 2

Applications & User Interfaces in the Enterprise world

Global
2004

RICH INTERNET
WEB APPLICATIONS
APPLICATIONS

1998
REACH

1992

Local
MAINFRAME CLIENT/SERVER

Text UI RICH Integrated Rich GUI

©2010 Adobe Systems Incorporated. All Rights Reserved. Adobe Con dential.
4

RIA and technical challenges

Web 1.0 application Rich Internet Application

• Be er response time
• Light bandwidth
• Less load on the server side
• Less tests on the client side
SERVER SERVER

<page>

<page>

<page>

<page>
<data>
<page>

<page>

<page>
<application>
CLIENT CLIENT


97%
Flash Player 10 (March 2010)

What is Flex and how it works

Flash Builder IDE Browser

Flex SDK Flash Player
MXML ActionScript

Flex Class Library SOAP HTTP/S AMF/S RTMP/S

Web Server
Compile
XML/HTTP LC Data Services
REST
SOAP Web Services J2EE Application Server

Existing Applications & Infrastructure


JAVA VALUE OBJECT JAVA SERVICE CLASS DATABASE

AdobeEvent.java EventService.java TABLES
adobeusers
int idEvent List getEvents()
adobevents
int idUser AdobeEvent getEvent(idEvent)
String evtName AdobeEvent getEventbyIDUser(idUser)
String evtCity List getActivityByuser()
String evtCountry boolean update(event)
int evtAudience boolean remove(event)
int evtDate boolean deleteEvent(event)

JAVA VALUE OBJECT JAVA SERVER PAGE

AdobeActivityEvent.java listEvents.jsp

int idUser <activity>
String userName <adobeEvent>
int nbEvents </adobeEvent>
<adobeEvent>
</adobeEvent>
</activity>

HTTP Request
&
WebServices
ADOBE FLEX 4

Flex/JSP architecture
UI LAYER
Web browser

SERVER XML on HTTP(s) Java servlet container (tomcat, WAS…)
PRESENTATION
/SERVICES/DAO Webapp (WAR)
LAYER
JAVA classes/services
listEvents.jsp
EventService.java public getEvents()

DATABASE/
STORAGE LAYER
WSDL JDBC

2008 Adobe Systems Incorporated. All Rights Reserved.

Flex and <HTTPRequest>

! Same with PHP, Ruby, Perl, ASP...
! Returns XML, text, tabulated text, JSON...
! Use send() to launch the request
! Result and Fault events
! New data-services wizard in Flash Builder 4 to
generate a STUB on the client side


Flex and <Webservice>

! Web Services Description Language 1.1 (WSDL 1.1)
document
! e Flex web service API generally supports Simple
Object Access Protocol (SOAP) 1.1, XML Schema 1.0,
and WSDL 1.1 RPC-encoded, RPC-literal, and
document-literal (bare and wrapped style parameters).
! Flex supports web service requests and results that are
forma ed as SOAP messages


XML AMF Published in December 2007

1.1Mo 5000 rows ? 29Ko

LiveCycle Data Services ES

LiveCycle Data Services is a set of Java EE
Service
components and APIs used to: Data Management Adapters
Data Synchronization
LiveCycle
Create data-intensive RIAs with less code, less risk, and O -line Applications
accelerated time to market due to an innovative client-
Data Paging ColdFusion
server programming model
RPC Services
Integrate RIAs with existing applications, back-end data, Hibernate
Web Service
and JEE infrastructure
HTTP Service SQL
Easily integrate RIAs with LiveCycle document and Remote Object Service
process services JMS
Messaging
Enable collaboration, o ine AIR and real-time data
Publish & Subscribe Java
streaming applications to be built in a scalable and
Collaboration
reliable manner with robust publish and subscribe Custom…
Real Time Data Push
messaging
Proxy Service
Generate PDF documents from RIAs that include
graphical assets Web-tier Compiler

Portal Deployment

RIA-PDF Generation


Blaze DS

BlazeDS is a set of Java EE components Service
Data Management Adapters
and APIs, and a subset of LiveCycle Data
Data Synchronization
Services: LiveCycle
O -line Applications

- Free and open source. Data Paging ColdFusion

- High performance data transfer for more responsive RPC Services Hibernate
applications using AMF Web Service

- Real-time server push over standard HTTP HTTP Service SQL
Remote Object Service
- Full pub/sub messaging that extends existing JMS
messaging infrastructure Messaging

Publish & Subscribe Java
Collaboration
Custom…
Real Time Data Push

Proxy Service

Web-tier Compiler

Portal Deployment

RIA-PDF Generation


LCDS.war

A le named « LCDS.war » is provided to start your Flex/Java projects.

! Structure of the WAR le:
! +WEB-INF/classes To place your Java classes

! +WEB-INF/lib Hosts the JAVA libraries of LCDS

! +WEB-INF/ ex Hosts the XML con guration les
! Remoting-con g.xml Destinations to Java classes for remoting
! Messaging-con g.xml Destinations for messaging
! Data-Management-con g.xml Destinations to Java assemblers
! Proxy-con g.xml Destinations to HTTP services
! Services-con g.xml Channels con gurations


Java and ActionScript value objects

Java VO ActionScript VO


Java and ActionScript types

STRING STRING

BOOLEAN BOOLEAN

INT, SHORT, BYTE INT

DOUBLE, FLOAT, LONG NUMBER

CALENDAR, DATE DATE

OBJECT OBJECT

COLLECTION ARRAYCOLLECTION

OBJECT[] ARRAY

ORG.W3C.DOCUMENT XML OBJECT

NULL NULL


Flex/Java classic architecture
UI LAYER
Web browser

AMF over HTTPs

SERVER Java servlet container (tomcat, WAS…)
PRESENTATION
/SERVICES/DAO Webapp (WAR)
LAYER
LiveCycle Data Services JAVA classes/services
JAVA <-> AMF
RPC services Messaging Data Mgt EventService.java public getEvents()

DATABASE/
STORAGE LAYER
WSDL JDBC

2008 Adobe Systems Incorporated. All Rights Reserved.

Spring BlazeDS Integration

ADOBE FLEX 4

Channels

Message
MessageBrokerServlet Broker

Servlet-based endpoints

AMF Endpoint
Remoting
HTTPEndpoint

StreamingAMFEndpoint
HTTPProxy

Socket Server (LCDS only)
Flex client Message
NIO-based endpoints

NIOAMFEndpoint
Data Management
NIOHTTPEndpoint

RTMPEndpoint


Publish/Subscribe Messaging

LiveCycle DS / Blaze DS

!Client A

Message
Endpoint
Service

!Client B

!RTMP
!Client C
!AMF Publisher
!HTTP Subscriber


Data Push - Messaging

LiveCycle DS / Blaze DS

Messaging
Adapter X
System X

Message JMS
Endpoint JMS Adapter
Services Provider

Messaging
Adapter Y
System Y

!RTMP

!AMF Publisher
!HTTP Subscriber


LIFE AS AN EVANGELIST

THE GPS CHIPSET ISSUE

Data Management
Services
ADOBE FLEX 4

Data Management Services

LiveCycle Data Services

JDBC
Client A RDBMS
Adapter

Endpoint Data Object
DAO
Service Adapter

Client B

Hibernate
Hibernate
Adapter

CFC
Client C Adapter ColdFusion


Data Management Bene ts

1. Automatic Client to Middle-Tier Synchronization
! Change Tracking
! Automatic invocation of remote services

2. Highlander Principle: there is only one instance of a given entity in
memory at any given time
3. Con ict resolution
4. O ine Synchronization (thanks to Adobe AIR)
5. Lazy loading
6. Paging
7. Cross-client synchronization


Model driven
development
ADOBE FLEX 4

Code Driven Development

Code
•UI controls / formatters / styles
• Calculated elds
• Validation Rules
• Variants (conditional properties)
• Localization
• Security
• Data Retrieval Logic (paging, lazy loading)
• Data Synchronization Logic

Model
•Basic Data Description

Model Server-side code Client-side code


Model Driven Development

Code
• Ad-hoc customization
• View composition
• External business/validation logic

Model
• Rich data model (data and behaviors)
• Calculated elds
• Validation Rules
• Variants (conditional properties)
• Localization
• Security
• UI hints/defaults: controls, formatters, styles

Model includes enough information to derive data
retrieval, persistence, and synchronization logic

Model Server-side code Client-side code


Model Driven Development Bene ts

Productivity: Less code to write

! No persistence code or data sync code

! Value objects and service stubs are automatically generated

Maintainability: Less code to maintain

! Changes to the model are automatically propagated

Consistency

! Between client and server (for example, constraints and validation rules are de ned in the model, not duplicated using di erent
languages in the client and the server)

! Across views (for example, UI controls, styles, and validation rules are de ned in the model, not duplicated across di erent
views)

Approachability

! No code to write to implement complex capabilities such as persistence, synchronization, paging, lazy loading, o ine, etc.

Innovation:

! O ine and client synchronization capabilities

! Model is language independent and can be leveraged by di erent client technologies and tools (Flex, PDF, etc)


Learn a new language ?

Flex and Java
developers

FAST and FUN

Agile development ?

JavaUnit and FlexUnit
JavaPMD and FlexPMD
MAVEN, ANT
MVC frameworks
Hudson, Sonar reports
FlexCover, FlexCPD, load tests
Flex and Java
developers

Keep your tools and methodologies

Large-scale systems ?

Adobe J2EE
Flex and Java libraries
developers

Leading framework for Enterprise RIA

JAVA JAVA + FLEX
rockstar rockstar

Flash Platform - A complete system for web innovation


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