Lesson 5Lesson 5Modeling Object Modeling Object StructuresStructures

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Lesson 5 Overview Lesson 5 Overview

– Analyze users and tasks to decide what parts of the application to expose

– Create logical groupings

– Map objects

– Select the Session Model

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Where we are in the processWhere we are in the process

Covered

Not Covered

Color Key:

Build 4GLapplication

Set up JSECompiler-code

Set up WSA

UsersTasksCode

DefineClient

Interface

BuildProject

file

GenerateDefinitions

DeployDefinitions

ClientCoding

Connectand Test

Debug

Phase 1: Set Up Servers

Phase 2: Create Web Service Definitions

Phase 3: Deploy, Test and Debug

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What will the users need to do?What will the users need to do?

TasksSales Rep

Sales Manager

Find customer name from customer number

X X

Find customer number from customer name

X X

Find total order dollars X X

Find total number of orders X X

Get order details X

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Match tasks with 4GL codeMatch tasks with 4GL code

Tasks 4GL codeFind customer name from customer number

FindCustomerByNum.r

Find customer number from customer name

FindCustomerByName.r

Find total order dollars GetTotalOrdersByDollar

(function within OrderInfo.r)

Find total number of orders

GetTotalOrdersByNumber

(function within OrderInfo.r)

Get order details GetOrderDetails

(function within OrderInfo.r)

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Only I/O processes need be exposedOnly I/O processes need be exposed

FindCustomer ConvertCurrency

CalculateTotal$Due

ResetCreditLimits

AddCustomer

DeleteCustomer

PriceLookup

UI logic Business logic

AppServer application

Open clientaccess needed

No open clientaccess needed

.

.

..

.

.

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Lab 5-1: Users-Tasks-CodeLab 5-1: Users-Tasks-Code

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Open Client Object ModelOpen Client Object Model

AppObjectAppServer Connection

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Open Client Object ModelOpen Client Object Model

SubAppObject2

AppObject

SubAppObject1

AppServer Connection

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Open Client Object ModelOpen Client Object Model

SubAppObject2

AppObject

SubAppObject1

ProcObject1

AppServer Connection

ProcObject2

ProcObject3

ProcObject4

internal procedure

internal function

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Open Client Object ModelOpen Client Object Model

SubAppObject2

AppObject

SubAppObject1

ProcObject1

AppServer Connection

ProcedureX

ProcedureY

ProcObject2

ProcObject3

ProcObject4

internal procedure

internal function

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Simplest possible exampleSimplest possible example

FindCustomerByName.r

CustomerSearchAppServer Connection

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Complex exampleComplex example

NewOrders

OrderMaint

OldOrders

AddOrder.r

AppServer Connection

DeleteOrder.r

CheckOpenOrders.r

FindOrphans.r CreditCheck.r

AddCustomer.r

GetItemNumber.r

CheckName()

GetCustData()

PostNewCust()

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Open Client Interface for OrderInfoOpen Client Interface for OrderInfo

OrderInfoAppServer Connection

FindCustomerByName.r

FindCustomerByNum.r

CustomerOrder.r

GetTotalOrdersByNumber()

GetTotalDollarsByNumber()

GetOrderDetails()

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Session Model = ManagedSession Model = Managed

Persistent

Connection

AppServer

Web Services

Client

AppObject

State-reset

State-aware

Stateless

WSA

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Session Model = FreeSession Model = Free

AppServer

Web Services

Client

AppObject

State-free

Multiple

Non-persistent

Connections

WSA

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Open Client Interface for OrderInfoOpen Client Interface for OrderInfo

OrderInfoAppServer Connection

FindCustomerByName.r

FindCustomerByNum.r

CustomerOrder.r

GetTotalOrdersByDollar()

GetTotalDollarsByNumber()

GetOrderDetails()

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Lab 5-2: Object Mapping and Session ModelLab 5-2: Object Mapping and Session Model

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Review Review