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Oracle ADF: Drag and DropData Binding for J2EE Business Services

Steve Muench

Technical Evangelist, Product Manager,Developer, Author

Oracle Corporation


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Model / View / Controller Architecture

Business Service

Collectionsof ValueObjects

User Input / Page Flow

Handling Logic

Business

Data

BusinessObjectsController Layer

Business Services Layer

View Layer

Query Results

Code

ModelLayer

BusinessService

Interface


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Data Binding Ties M, V, and C Together

Business Service


BusinessService

Interface


Handling Logic

Business

Data



View Layer

Query Results

Code

ModelLayer


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JSR 227: Bindings & Data Controls

5008,00

salary

employeesIter

UI Control

Control

Binding

IteratorBinding

BusinessServiceyourDC

Data

Control

Model Layer


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Control Binding Types

Value

Binding

Action

Binding

Range

Binding

Attributes

Binding

List

Binding

Tree

Binding

Control

Binding


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JSR 227: Bindings & Data Controls

What is the Model Layer?

View, Controller, Business Services "Glue"

Why a Declarative, Standard Approach?

Saves Repetive Coding

Enables Visual Design Tools

JSR 277

DataBinding

Layer

Swing

UIX/JSF

JSP

WebServices

Toplink

EJB

JavaClasses

BusinessComponents


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D E M O N S T R A T I O N

Quick Example of

Declarative Data Binding

For JSP and Swing


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JSR 227 Design Time Environment


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Quick Example of

Data Binding Using

POJO's Mapped with Toplink


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How Does Data Binding Fit IntoYour End-to-End Application Architecture?

J2EE is Warehouse of Technology Ingredients

JMS, JDBC, JAXP, SAX, JSP, EJB, Servlets,JAAS, JavaMail, JNDI, JTA, JCA

J2EE Does Not Prescribe anyEnd-to-End Application Architecture

What is the Recipe that's Right for Your App?

When Should You Use Which Technologies?

Hint: Your Choices Affect Application Performance!

Each DevelopmentTeamMust:

Combine Ingredients into a Custom Architecture

Enforce Use of the Architecture Across Team


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J2EE Design Patterns to the Rescue

Best Practice Techniques

Improve Performance

Increase Maintainability

Avoid Typical Problems

Application Architecture Ideas

What To Do In Which Tier

Which J2EE Technology When?

Paragraphs Of Text, Diagrams

Not Ready-to-use Code


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J2EE DesignPatterns

Required for AnyReal-World Application

Implementing Them Is:

Time Consuming

Tedious, Error Prone

Ongoing Testing,Debuging,Maintenance

Don't You Have AnApplicationto Finish?


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J2EE Experts Advice

Many common problems(beyond those addressed byJ2EE application servers) havebeen solved well by open

source or commercial packagesand frameworks.

By adopting an existingsolution, we are free to devoteall our effort to meetingbusiness requirements.

Page 166


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Write Your Own, or Off-the-Shelf ?

Most teams end up

developing and supportingtheir own app-specific

frameworks

Others make the

investment to learn anduse one or more

off-the-shelf frameworks


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Popular Framework-Based Techniques

Business Service


BusinessService

Interface


Handling Logic

Business

Data



View Layer

Query Results

Code

ModelLayer

Struts

JSP + Taglibs


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Model, Services, Data Access, BusinessObjects Often Hand-Coded

Business Service


BusinessService

Interface


Handling Logic

Business

Data



View Layer

Query Results

Code

ModelLayer

Struts

JSP + Taglibs

???


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Frameworks Can Simplify

Business Objects

Persistence

Queries

Transaction Management

Data Access Objects

Business Services

Web and Wireless ClientsRich Clients

Model

Controller

Transactional Service Faades

Business Rules Enforcement

Client "Data Shaping"

Coordinating DAO's with BO's

State Management

Layered Customization


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Interacting with Business Service Methods

Exposing Business Data to View/Controller Layers Handling Updates Made to Business Data

Business Services


Model

Controller


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Business Service Location/Lookup and Pooling

Handling User Events and Request "Lifecycle"

Presenting/Internationalizing Messages & Errors

Page Navigation/Flow

Business Services


Model

Controller


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Swing Data Binding

Efficient 3-Tier Client/Server Communication

Business Services


Model

Controller


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Over 2000 In-House Application DevelopersGives Us Significant In-House Expertise

Oracle E-Business Suite Developers are Building

Complex, Scalable J2EE Business Applications

With Web, Swing, and Web Services Interfaces Targeting Intranet and Internet Deployment on J2EE

Using J2EE Design Patterns Frameworks

To Accelerate Implementation and Save on Testing


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J2EE Experts Advice for Strong FoundationGiving Most Flexibility, Best Performance

Lightweight "Inversion of Control" Container

JavaBean Based Components

Extending from Framework

Configured From XML Metadata

Constructed Using Factories

Solves Common Problems Once

Easier to Test Outside theJ2EE Container Environment

Can Be Repurposed in BothJ2EE Web Tier and EJB Solutions

O l A li i D l


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Implements Standard J2EE Best Practices Modular, Lightweight "Inversion of Control" Container

Model-View-Controller (MVC) Design Pattern

Focus on The Application, Not The Plumbing

Consolidation and Evolution of Proven Frameworks

Oracle Application DevelopmentFramework (ADF)

Business Services


Model

Controller


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Oracle ADF Design Extensions

Visual

WYSIWYG Editors

UML Modelers

Structure Pane

Declarative

Property Inspector

XML Metadata

Synchronized

Code View & Design View Always Synchronized

No Separate Generation Step

Underlying Code Always Accessible


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ADF Architecture Overview

Business Services

Web and Wireless

ClientsRich Clients

Model

Controller

ADF M d l L E bl Fl ibilit


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ADF Model Layer Enables Flexibility

View

Controller

Model

BusinessServices

Swing / JClient JSP ADF UIX JSF

Rich Client Web / Wireless

Struts ADF Controller

ADF Bindings

ADF Data Control

Java

Classes

EJBSession

Beans

Web

ServicesADF

Application Module

JDBCEJB

FindersTopLink

Queries

ADF

View ObjectData

Access

ADF

Entity ObjectJava Classes EJB Entity Beans

TopLink Mapping

Persistent

Business

Objects

ADFMetadataS

ervices


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New Approach to Development

Select Your Development Approach UML Modeling, Coding, Declarative

Development

Select Your Deployment Platform

Any J2EE Application Server

Any SQL92 Database

Select Your Technology Combination

"My JDeveloper" Technology Scopes


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Adding, Yet Simplifying Choices

My JDeveloper

UML

HTML

JSF

Apache Struts

EJBs

ToplinkAnt, JUnit

CVS

Oracle 9iAS

Profiling

Audit/Metrics

JSP

Struts

UI Project

Toplink

Model Project

TechnologyScopes

Visual &Declarative

UML

Swing, HTML JSP

JSF

Apache Struts

ADF BusinessComponents

EJBs

Toplink

Ant, JUnit

CVS

Clearcase

Oracle SCM

Oracle 9iAS

JBoss, WLS

Profiling

Audit/Metrics

ExtensionManager

CHOICES


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Quick Example of

Extension Manager,

Technology Scopes, andApplication Templates


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Business Services

Web and Wireless

ClientsRich Clients

Model

Controller


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Manages Persistence

O/R Mapping

Provides Filtered Views of Data

Custom Queries

Encapsulates Business Rules Data Validation

Business Logic

Choices of Implementation EJB, ADF Business Components,

Web Services, Java Classes, TopLink

Pl i J Cl


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Plain Java ClassesMapped with Oracle TopLink

TopLink Provides Architecturefor Object/Relational Persistence

Sophisticated Out-of-Box Optionsto Map Java Classes to Any Kindsof Tables or XML

Integrated Mapping Editor

T Li k D fi C t


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TopLink: Define CustomFinder Queries


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Enterprise JavaBeans (EJB)

Services are EJB Session Beans

Business Objects are Entity Beans

Leverage Toplink Mapping for CMP

Integrated Environment toModel, Code, Test, Debug EJBs

Productively Develop EJBs

EJB Module Editor

Basic Design Patterns Support

Data Transfer Object

Session Faade

EJB Verifier


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J2EE Web Services

Web Services UML Modeling TCP Packet Monitor PL/SQL Web Service wizard

WS-I Compliance tester ADF Data Control Binding Interoperability with .NET


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ADF Business Components

Prescriptive Building Blocks for Service-Oriented Apps Transactional Service Faades (ApplicationModule)

Task-Specific "Data Shaping" Components (ViewObject)

Business Objects with Rules Enforcement (EntityObject)

Used by Over 2000 Developers in Oracle Applications For Corporate Developers, VAR's, and ISV's Looking

to Avoid Writing Their Own J2EE Application Framework for theBusiness Services Layer

EntityObject

ViewObject

ApplicationModule


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Best-Practice App-Building Infrastructure For:

Coordinating Data Access Objects with BO's

Component Metadata (Prompts, Fmt Masks, Properties)

State Management

Efficient Remote Client Communication

Layered Customization

Use/Test Services as Lightweight Java Classes

Scalable & Performant with Optimized DB Interaction

Option to Deploy as EJB Session Beans, Web Services

Building Business Services with ADF BC


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Building Business Services with ADF BC

View

Controller

Model

BusinessServices

Swing / JClient JSP ADF UIX JSF

Rich Client Web / Wireless

Struts ADF Controller

ADF Bindings

ADF Data Control

Data

Access

Persistent

Business

ObjectsEntityObject

ViewObject

ApplicationModule

PaymentPlanMgmtService

SlowPayingCustomers

LatePayments

Bill PaymentCustomer


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Business Services Design Time

UML Modelers, Wizards,Editors

Database Schema


Enterprise JavaBeans

Web Services

Java Classes


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Drag and Drop Data Binding

Data Binding Palette

Expose any Business Service

Available to any View

Create UI components Master/Detail

Table

Field, checkbox,


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Business Services

Web and Wireless

ClientsRich Clients

Model

Controller


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UI Development

Visual editors JSP and HTML

JavaServer Faces

ADF UIX

Swing (ADF JClient)

Component palette

Common binding

Property inspector Structure pane


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Design and Code Sync

Design View / Code View Available For All Components

Two-Way Synchronization


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ADF JClient

Rich Client user interface(JFC/Swing)

WYSIWYG Editor

Simplified Swing UI Layout

Best Practices Approach

UI Debugging


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JSP Visual Design

Synchronized JSP Visual Design with

Code Editor Structure Pane

Property Inspector

Data Control/Component Palette

Integrated with JSTL/EL & Struts

Taglibs on Component Palette Intuitive tag and EL rendering

Synchronized with Struts Page Flow

Universal ADF Databinding

Java Classes + Toplink

EJB + TopLink

Business Components

Web Services

Drag and Drop UI Components


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ADF Faces for JSF

JavaServer Faces (JSR-127)

Components Support Variety of Clients

Web Browsers, Mobile Devices

Rich Components, Layouts,

and Render Kits Powerful Runtime Features

Partial Page Rendering

Automatic Sorting

Look and Feel "Skinning"


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ADF Faces Early Access Release


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Powerful, JSF-CompliantVisual Components


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Business Services

Web and Wireless

ClientsRich Clients

Model

Controller

C t ll


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Controller

Handles Page Flow

Promotes Page Reuse Through Abstraction

Increase Flexibility And Manageability

Place For Code Execution

Programmatic Interaction WithModel Data and Business Service

Application Support Tasks

Security

Input Validation

State Management

St t P Fl


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Struts Page Flow

Visual Development with the Page Flow Modeler

Draw the Page Flow

Synchronized with Struts Xml

Drilldown to Code & Pages

Declarative Structure Pane

Property Inspector

ADF Data Action

Handles Model Interaction With Standard Struts Mechanisms

No Coding Required


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Struts Page Flow and Approaches

for Event Handling

and Page Navigation

Visual Struts Page Flow


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Visual Struts Page Flow

Oracle ADF


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Oracle ADFEnd-to-End J2EE Framework

Implements standard J2EE best practices

Model-View-Controller (MVC) design pattern

Focus on the application, not the plumbing Consolidation and evolution of previous frameworks

Business Services


Model

Controller

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Oracle Strategy for J2EE Development


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Oracle Strategy for J2EE Development

Offer Full-Lifecyle, Visual Development for J2EE

For Model, View, Controller, and Business Services Add Value Across the Entire Development Spectrum

With tools to make that visual and productive

Productivity with Choice

Use Any Layer of Our Provided Frameworks, or None Tight Application Server Integration

Best with Oracle, plus Standards-Based Portability

Continue to Expand Open-Source Tools Support

Struts, JUnit, Ant are Ones We Support Already Shape, Implement, and Drive Standards

Participate in and Implement New Specs (like JSF)

Drive New JSR's to Standardize Other App-Building Interfaces

Googling for More Information on


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Googling for More Information onJDeveloper and ADF

oracle jdeveloper adf

adf data binding

adf toy store demo

dive into adf

Thank You! For More Information


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Thank You! For More Information

http://otn.oracle.com/products/jdev Download the Software

Read "How To" Articles

Get Example Source Code

http://www.oracle.com/forums

Discussion Forums for Informal Tech Support

http://radio.weblogs.com/0118231/

"Dive into BC4J and ADF"


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