Model Driven Development Using LCDS3

Model Driven Development using LCDS 3 By Mohammed Khan, Project Director   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

About Me • Yet another Designer and Developer. • From job role, I am Solution Consultant, unfortunately my title is “Project Director” • Google TUG Manager and Appcelerator TUG India Manager • Apart from Adobe MAX, another event i would deﬁnitely want to attend is TAC Singapore http://tac.sg • Love to travel, read, and blabber • Humor in me (-) 100% • My blog http://ww.thepixelcode.com (Just born baby) • At work, helped a Fortune 50 company to realize their ﬁrst collaborative RIA. • At home, well i still work.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Agenda • Data Driven Applications Using Flex SDK • What is new in LCDS 3 ? • What’s Fiber ? • Adobe Data Model • Adobe Data Model Example • Demo DISCLAIMER: Guys LCDS 3 BETA is not open source, its just available for PREVIEW and also this session is not a workshop, but highlights the capabilities of LCDS 3 BETA.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Data Driven Applications using Flex Flex Client Side Components Server Side Middle Tier Technologies HTTP Channel Any technology that BlazeDS/LCDS/Axis/ HTTPService RESTLets support restful XML services HTTP Channel Any technology that BlazeDS/LCDS/Axis/ WebService WSDL support SOAP XML services AMF Channel BlazeDS/LCDS/ RemoteObject AMFPHP/WebORB/ PHP, CF, J2EE, .NET Binary GDS AMF Channel Producer/Consumer LCDS/GDS Gravity CF & J2EE Binary   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

What is new in LCDS 3 ? • Support for Remote Development Services conﬁguration • Runtime to execute Adobe Data Model • Data Throttling • Reliable Message Transactions • Recover over network failures • Pause/Resume capability   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

What’s Fiber ? Fiber : A code name for a suite of technologies that enables model driven development of Flex applications. The suite consist of : • A modeling language called Adobe Data Model. • Tools to create, manage and deploy Data Model. • A runtime to execute the Data Model.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Adobe Data Model • Adobe Data Model: An XML-based language that lets you create data model. • Models created using Adobe Data Model are stored as XML-files with extension as .fml • Lets you use Java Persistence Query Language (JPQL) • Elements of Adobe Data Model language are : 1. Entities : Represents objects of the model. 2. Annotations : Domain specific information about the model. 3. Services : Function definitions. 4. Styles : Collection of UI related attributions 5. Functions (built-in) : Built-In methods that can be used within model expressions.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Adobe Data Model Example <model xmlns="http://ns.adobe.com/Fiber/0.3"> <annotation name="DMS"> <item name="hibernate.connection.datasource">java:/comp/env/jdbc/sampleDB</item> <item name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</item> </annotation> <entity name="Departments" persistent="true"> <annotation name="ServerProperties"> <item name="ServerType">LCDS</item> </annotation> <annotation name="DMS"> <item name="Table">Departments</item> </annotation> <annotation name="VisualModeler"> <item name="width">115</item> <item name="height">62</item> <item name="x">24</item> <item name="y">23</item> </annotation> <id name="deptID" type="integer"> <annotation name="DMS"> <item name="ColumnName">DeptID</item> ...........................................   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Demo • Get required tools 1. Flash Builder 4 Beta 2. Modeler Plugin 3. LCDS 3 Beta Turnkey • Conﬁgure RDS on the server • Conﬁgure JDBC Data Source • Setup Flex 4 - J2EE project • Create a Data Model and deploy it. • Build the Application and test it.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Annotations & Styles Annotations • Name-value pair for each element of the model XML • Can be added to any User deﬁned elements for the model. Styles • Declare UI object references. • Declare localization resource bundles.   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Filters • There are three types of filters: 1. Criteria based Filters 2. Pass-through Filters 3. Transform Filters • Criteria based filters lets you define object scope of an entity with expressions <filter name="getByDepartmentLike" criteria="department Like"/> • Pass-through based filters lets you define object scope of an entity with a JPQL query <filter name="getByEmployeeLN"> <query><![CDATA[jpql:SELECT emp FROM Employees emp WHERE emp.employeeLastName='Ram']]></query> </filter> • Transform based filters lets you define return structure of an entity <filter name="getByEmployeeLN"> <query><![CDATA[jpql:SELECT emp FROM Employees emp WHERE emp.employeeLastName='Ram']]></query> <annotation name=”DMS”> <item name”propertySpecifier”>employeeID, employeeFirstName</item> </annotation> </filter>   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Thank You ! • For more details about esberi, kindly visit http://www.esberi.com • You can check out my blog at http://www.thepixelcode.com • I am available on twitter as mohammed_khan • You can also mail me your queries to mohammed.khan@esberi.net   Copyright c 2009 Esberi Technologies Private Limited Friday 21 August 2009

Model Driven Development Using LCDS3

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