INF5120 Modellering med Objekter 06.05 - Universitetet i oslo · INF5120 Modellering med Objekter...

INF5120 Modellering med Objekter 06.05.2004

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1ICT – Information and Communication Technologies

INF5120”Modellering med objekter”

Forelesning 06.05.2004

Arne-Jørgen Berre


Forelesnings- & øvingsplan

Forelesningsplan18.03: Brian Elvesæter, “COMET Business & Requirements Modelling”25.03: Jan Øyvind Aagedal, “Non-functional requirements”01.04: Jan Øyvind Aagedal, “Component Modelling - OCL”15:04: Brian Elvesæter, “COMET Architecture & PSM Modelling”22.04: Arne-Jørgen Berre, “UML Fever og UML 2.0, Patterns og Refactoring”29.04: Birger Møller Pedersen,Øystein Haugen, “UML 2.0 – ATM Example”06.05: Arne J. Berre, “MDA, OMG MOF og QVT Transformations” 13.05: Arne J. Berre, “Summary –Preparation for exam on June 1st”

Øvingsplan18.03: Gruppe 9 & 21, “Use Case Model”25.03: Gruppe 17 & 22, “Business Model (part I)”01.04: Gruppe 3, “Business Model (part II)”15.04: Orakeltime for oblig 2 – send inn spørsmål på forhånd (Brian)22.04: Gruppe 4, “Architecture Model”

29.04: Orakeltime for oblig 2 (Sinan)

06.05: oblig 2 - gjennomgang (Sinan)

13.05: Tidligere eksamensoppgaver(Sinan)


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OMG Model-Driven Architecture (MDA)

www.omg.org/mda


Dagens tema (MDA, MOF, XMI, Transformasjoner, QVT)

OMG MDAOMG MOFOMG XMIOMG CWMMDA Explained – transformationsOMG QVT (QVT Merge Group proposal per April 2004)

Pensum, Eksamen, Oppsummering neste gang


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Dagens tema (fra MDA Explained)

7: More on Transformations8: Metamodeling9: Defining your own transformations10: Rosa’s transformation definitions11: OMG Standards and additional technologies12: The MDA promise

Revised submission for MOF 2.0 Query/View Transformations RFP – version 1.0 (by QVT-Merge Group) – chapter 1, 2, 5


Functionality in future MDA environment


4


Complete MDA Framework


Roles in an MDA process(participants, tools artifacts)


5


OMG Metamodeling Architecture

Modeled systems,Warehouse data

Object, data

M0

UML models, Warehouse/BI metadata

Model, metadata

M1

UML Metamodel,CWM Metamodel

Metamodel, meta-metadata

M2

MOF Model (UML)Meta-metamodelM3

ExamplesOMG termsMeta-level


Overview oflayers M0 – M3


6


MOF Metamodel


OMG Model Driven ApproachUML as the standard language for defining metamodelsXMI as the standard mechanism for interchanging metadata in XMLMOF to IDL Mapping as the standard mechanism for accessing metadata in CORBA

MOF to Java Mapping (JMI) as the standard mechanism for accessing metadata through Java


7


XMI

XML Metadata Interchange

An XML vocabulary forinterchanging metadata

in software systems.


XMI Overview

Specify a precise MOF to XML mappingEnables automatic generation of XML documents that can be validated with generated DTDsAllows interchange of any MOF based metamodel and corresponding models/metadata

CWM metamodelCWM based metadata


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Mapping of MOF compliant metamodels to XML DTDs (XMI 1.0) and XML Schemas (XMI 2.0)

DTD provide standard representation of metamodelE.g., MOF DTD; UML DTD, CWM DTD

XML Schema provides more extensive standard representation of metamodel

E.g., MOF xsd; UML xsd, CWM XSD


Mapping of MOF compliant models/metadata to XML documents

Transmit and interchange metadata that conforms to the metamodel

E.g., IBM_Relational.xml(-> CWM DTD)

XML document that conforms to MOF DTD/Schema is a preferred representation of metamodel

E.g., UML XML, CWM XML


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XMI DTDs (or schemas)and Documents

DTD

Doc

DTD

Doc

DTD

Doc

MOF

UML/CWM Java C++, IDL Relational

Database

Model/Metadata

.java,

.class.c, .h, .idl, .obj, .dll

Schema (columns)

Instances Instances Instances Data (row)


XMI Mapping

ClassObject typed attributeContainmentReferenceBasic attribute (int, String)

MOF ConceptXML element, IDXML elementXML elementXML attribute, IDREFXML attribute, CDATA

XML Concept


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XMI Example: UML Model

Convertible

Carmakemodel

drive()

Personownerowns<Class name="Car">

<Class.ownedElements><Attribute name="make"/><Attribute name="model"/><Operation name="drive"/>

</Class.ownedElements></Class>

CarModel.xml


<XMI xmi.version="1.1" xmlns:uml="org.omg/uml1.3" ><XMI.header>

<XMI.documentation>An example of an auto.

</XMI.documentation><XMI.metamodel name="UML" version="1.3"

href="uml1.3.xmi" /><XMI.model name="Cars" version="1.0" />

</XMI.header><XMI.content>

<Class name=" Car"><Class.ownedElements>

<Attribute name=" make"/><Attribute name=" model"/><Operation name=" drive"/>

</Class.ownedElements></Class>

</XMI.content></XMI>

content

header(optional)


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Convertible

Carmakemodel

drive()

Personownerowns<!element Car><!attlist Car

xmi.id id #impliedmake cdata #implied model cdata #impliedowner idref #implied>

<!element Person><!attlist Person

xmi.id id #implied owns idref #implied>

Car.dtdCar.dtd

XMI Example: UML Instance


<Car xmi.id="4ABC123" make="Ford" model="Mustang" owner="John Doe"/><Person xmi.id="John Doe" owns="4ABC123"/>

Car.xmlCar.xml


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The CWM Metamodel

WarehouseProcess

WarehouseOperation

Transformation

XMLRecord MultiDimensionalRelational

BusinessInformation

Core

Management

Resource

Analysis

Object

Foundation

OLAP Data Mining

InformationVisualization

BusinessNomenclature

ObjectModel Behavioral Relationships Instance

DataTypes Expressions Keys

IndexType

MappingSoftware

Deployment

CWM - Common Warehouse Model


The CWM MDA

CWMSpecification

CWMMetamodel(in UML Notation)

CWM Metadata

Access

CWM IDL/CWM Java*

CWM DTDCWM

Metadata Interchange

(in XML)

CWM XML

MOF DTD/Schema


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ER -- Stereotypes & TaggedValues

Class(from Core)

<<Entity>>Association

(from Relationships)

<<Relationship>>AssociationEnd(from Relationships)

<<RelationshipEnd>>KeyRelationship(from KeysIndexes)

<<ForeignKey>>

Classifier(from Core)

<<Domain>>Model(from Core)

Index(from KeysIndexes)

<<NonuniqueKey>>Attribute(from Core)

Package(from Core)

<<SubjectArea>>UniqueKey

(from KeysIndexes)

<<PrimaryKey>>

Subsystem(from Core)

<<ModelLibrary>>

/owner /feature

*{ordered} *

TaggedValueupdateTag = “update : ExpressionNode”

TaggedValueinsertTag = “insert : ExpressionNode”

TaggedValuedeleteTag = “delete : ExpressionNode”

TaggedValuevalidationTag = “validationRule : ExpressionNode”

TaggedValuedefaultTag = “default : ExpressionNode”

Stereotypes change class

names

TaggedValuesadd attributes

But can’t add associations

or other semantic details!


CWM Transformations

Central means for managing data warehouse metadata in CWMMotivate activities of the Management layer

Warehouse ProcessesWarehouse Operations

SupportsTechnology layeringLogical evolutionDrill-down operations Repetitive administration tasks


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Transforming versus Mapping

BusinessModel

BusinessModel

DatabaseSchema

DatabaseSchema

Data Data

Conceptual

Logical

Physical

Transform

Transform

Transform

Map

Map

Map

Map

Logical Evolution

Technology Layering

Use TransformationMap

Use TransformationActivity


Using CWM Transformations

ER Logical Model

Record Model Relational Model

TransformationMap TransformationMap

TransformationActivity


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Transformation MapsTransformationMap

/ classifierMap : ModelElement(f rom Transforma ti on)

Classi fierMap

function : ProcedureExpressionfunctionDescription : String/ source : Classifier/ target : Classifier/ transformationMap : Namespace/ featureMap : FeatureMap/ cfMap : ClassifierFeatureMap

(from Transformation)

0..1

*

/namespace0..1

/ownedElement*

Classifier(from Core)

* 1..** source 1..*

* 1..** target 1..*

FeatureMap

function : ProcedureExpressionfunctionDescription : String/ source : Feature/ target : Feature/ classifierMap : ClassifierMap


0..1

*

0..1

*

Feature(from Core)

* 1..** target 1..*

* 1..** source 1..*

ClassifierFeatureMap

function : ProcedureExpressionfunctionDescription : StringclassifierToFeature : Boolean/ classifier : Classifier/ feature : Feature/ classifierMap : ClassifierMap


0..1

*

0..1

*

cfMap

*

1..*

cfMap

*

1..*

*

1..*

cfMap*

1..*


source

target

source target

Map Logical Model To Record

source target

source target

source target

source target

Logical model

Product : Entity

UPC : Attribute

Name : Attribute

Size : Attribute

Brand : Attribute

Category : Attribute

Product : RecordDef

ProductFile : RecordFile

c:\products.dat : DataManager

UPC : Field

Name : Field

Size : Field

Brand : Field

Category : Field

Record model

Transformation Maps link logical and physical models

MapLogicalToRecord : TransformationMap

: ClassifierMap

: FeatureMap

: FeatureMap

: FeatureMap

: FeatureMap

: FeatureMap


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: TransformationActivity

: TransformationStep

: TransformationTask

: Transformation

: Transformation

: Transformation

: Transformation

: Transformation

: DataObjectSet

: DataObjectSet

: DataObjectSet

: DataObjectSet

: DataObjectSet

: TransformationUse

: TransformationUse

: DataObjectSet

: DataObjectSet

: DataObjectSet

: DataObjectSet

: DataObjectSet

MoveValue : Operation

FKValue : Operation

Map Record To Relational

ProductDB : Schema

(local) : Catalog

Size : Column

UPC : Column

Name : Column

Product : Table

CategoryID : Column

Company : Table

ID : Column

Category : Table

ProductPK : PrimaryKey

CompanyPK : PrimaryKey

CategoryPK : PrimaryKey

CategoryFK : ForeignKey

CompanyFK : ForeignKey

CompanyID : Column

Name : Column

Name : Column

ID : Column

Product : RecordDef

ProductFile : RecordFile

c:\products.dat : DataManager

UPC : Field

Name : Field

Size : Field

Brand : Field

Category : Field

Record Model Transformation Activity Relational Model


Map ER Model To Relational

ER model

P roduc t : E ntity

UP C : A ttribute

Nam e : A ttribute

S iz e : A ttribute

B rand : A ttribute

Category : A t tribute

ProductDB : Schema

(local) : Catalog

Size : Column

UPC : Column

Name : Column

Product : Table

CategoryID : Column

Company : Table

ID : Column

Category : Table

ProductPK : PrimaryKey

CompanyPK : PrimaryKey

CategoryPK : PrimaryKey

CategoryFK : ForeignKey

CompanyFK : ForeignKey

CompanyID : Column

Name : Column

Name : Column

ID : Column

Relational model

MapLogicalToRecord : TransformationMap

: ClassifierMap

: FeatureMap

: FeatureMap

: FeatureMap

: FeatureMap

: FeatureMap

Transformation map


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UPC Name Size Comp’yCateg’y111222111223112223112222

File: c:\products.dat

On disk

Met

adat

a st

ore

Using CWM Transformations

ER Logical Model

Record Model Relational Model

TransformationMap TransformationMap

TransformationActivity

Move Data

CWM-enabled Data Movement Utility

Metadata

DataData

Data


OMG QVT standardisation- general for MOF (Extending and replacing the specific CWM Transformations)

From: QVT-Merge Group

Revised submission for MOF 2.0 Query/Views/Transformations RFP

Proposal for transformation architecture and both visual and textual syntax

April 2004

Ref: document at INF5120 Web site


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Transformations and MDA


An expanded PIM to PSM Transformation


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A high level transformation


Concrete syntax


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A high level transformation being refinedby a directed mapping


Transformations, Relations and Mappings

Transformationspecification (test cases)

Transformationimplementation


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General relation in textual form


Relation in graphical form


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Relation example

Expressions and constraints using OCL syntax


Mapping example


23


Proposed Methodology


Transforming a UML Attribute into an XML element


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Transformation diagram with relation


Instance of relation


25


Textual version


Mapping which refines relation

}}


26


Key concepts of Transformations


Visual notation – transformation/pattern


27


Visual notation – relation and mapping between patterns


Visual notation – transformation composition


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Visual notation – pattern match


Relational Mapping Example

From MDA Explained – chapter 10

From QVT Example


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Simple UML Metamodel


Simplified UML Metamodel


30


Simple RDBMS Metamodel


Simplied SQL Metamodel


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Transformation – Class to table (MDA Explained)


Transformation – Association class to table


32


Class to Table transformation (QVT)


Class to Table transformation


33


Association to foreign key transformation


QVT - Tools

(OptimalJ has (non-standard) support for transformations,with transformation language and patterns

(Architect edition)


34


OpenMDX – Open source MDA


OpenMDX, levels of platform-independence


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UMLAUT/MTL (http://modelware.inria.fr)

QVT ImplementationLanguage: MTL

Integrates with differentrepositories

Netbeans MDR MOFEclipse EMFModFact repository

class MyTransformation{

run (){

attributeIterator : Standard::Iterator;anAttribute : source_model::Core::Attribute;

attributeIterator := !source_model::Core::Attribute!.allInstances().getNewIterator();attributeIterator.start();while attributeIterator.isOn() {

anAttribute := attributeIterator.item().oclAsType (!source_model::Core::Attribute!);……


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ModFact (http://modfact.lip6.fr)

MOF RepositoryCORBA and JMI Interfaces

QVT EngineSimpleTRL language


UML Model Transformation Tool (UMT)

Open source tool for code generation from UML modelsReads UML models via XMI from a UML tool

Rational Rose, Together, ArgoUML, Poseidon, ObjecteeringUses Java and XSLT to generate code

EJB, Servlets, WSDL, XML schema, IDL, SQLEasy to plug in new generators (scripts) or adapt existing onesGraphical environment to install generators and run themSupports structural models (class models) and process models (activity diagrams)http://sourceforge.net/projects/umt-qvtFrom SINTEF


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Kodegenereringsmotor for Javabasert på attributtorientert programmering for Javabruker spesielle JavaDoc tags for å legge til semantikk til kildefilerbegynte som EJB-kodegenereringsmotor – sees nå som en generell kodegenerator (med fokus på J2EE)Støtter mange av de ledende applikasjonstjenerne

JBoss, BEA WebLogic, IBM WebSphere, Oracle IAS, Orion, Borland, MacroMedia JRun, Jonas

Integrert med AntXDoclet tasks defineres i ant, f.eks. EjbDoclet eller WebDoclet

www.xdoclet.org


Scenario: From UML to J2EE

«BusinessServiceSpec»Repository Services

«Service»AssetManagement

+o1()-name : string(idl)

«Entity»Asset

1 *

«Entity»Type

*

*

design

XMI

Export

Code gen

UMT code generation tool

EJB 2.x code and Servlets with Xdoclet tags, ant build files

EJB CMP, Value objects, Home,

Remote, deployment descriptors ...

Deploy &

run


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Scenario: UML-modell

AssetProperty<<entity>>

name : stringtype : stringdescription : string

Asset<<entity>>

name : stringdescription : stringkeywords : stringowner : string

0..1

0..*

+parent0..1

+children0..*

0..*

+properties

0..*

AssetType<<entity>>

name : stringdescription : string

0..*0..*

+assets

0..*

+type

0..*

AssetManagement<<service>>

testOperation()

0..*+assets

0..*

<<manages>>

0..*0..*

+assetTypes0..*0..*

<<manages>>

<<manages>>


Scenario: UMT – code generation


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Scenario : Generert kode<<entity>>

Asset<<entity>>AssetType

<<entity>>AssetProperty

UML classes

EJB SessionBeans

<<service>>AssetManagement

AssetManagementEJBAbstract.javaAssetManagementEJBImpl.java

Java EJB EntityBeansAssetEJB|AssetTypeEJB|AssetPropertyEJB|..|.java

Xdoclet generation

UMT generation

AssetManagementHome.javaAssetManagementRemote.java

AssetManagementUtil.java

Asset<x>CMP.javaAsset<x>Value.javaAsset<x>LightValue.javaAsset<x>Local.javaAsset<x>LocalHome.javaAsset<x>PK.java

For each Entity x

Deployment descriptors

ejb-jar.xmlapplication.xmljboss.xmlJbosscmp-jdbc.xml

build.xml RepositoryServlet.java

Servlet test client

UML classes

Web deployment descriptors

web.xmljboss-web.xml


Pensum INF5120 – Vår 2004

MDA Explained + Hele boka (163 sider)

The Rational Unified Process an introduction, kapittel 1, 2, 8, 9, 10, 11, 17 (98 sider)

COMET Handbook 2.4, side 11-83, (72 sider)

Forelesnings handouts

“Åpen bok” eksamen - ref. Oblig oppgaver


40


MDA Explained (Alle kapitler)1: The MDA Development Process2: The MDA Framework3: MDA Today

4: Rosa’s Application of MDA5: Rosa;s PIM to three PSMs6: Rosa’s PSMs to Code7: More on Transformations8: Metamodeling9: Defining your own transformations10: Rosa’s transformation definitions11: OMG Standards and additional technologies12: The MDA promise

A: Glossary B: The Code for Rosa’s system


The Rational Unified Process1: SW Development Best Practices (16)2: The Rational Unified Process (16)3:Static structure: Process description 4: Dynamic structure: Iterative Development5: An Architecture-centric Process6: A Use-cased Driven Process7: The PM Discipline8: The Business Modeling Discipline (15)9: The Requirements Discipline (14)10: The Analysis and Design Discipline (11)11: The Implementation Discipline (9)12: The Test Discipline13: The Configuration and change Discipline14: The Environment Discipline15: The Deployment Discipline16: Typical Iteration plans17: Implementing RUP (12)A: Roles, B: Artifacts, C: AcronymsPensum: 32 + 49 + 12 = 93 sider RUP


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COMET – Methodology Handbook

(Berre/Aagedal/Elvesæter/…) – new version 2.4 April 2004

1: Introduction to COMET2: COMET Overview3: Business Modeling4: Requirements Modeling5: Architecture Modeling6: Platform-Specific Modeling (72 sider)

7. App A-H Appendices (Ikke pensum)


UML 1.4/1. 5 and UML 2.0

UML Background and Reference materialhttp://www.omg.org/uml/ (UML)http://www.omg.org/mda/ (MDA)http://www.omg.org/cwm/ (MOF, XMI, CWM)UML 2.0 referanse (ref. forelesning)

Supporting litterature:UML book 1: UML Distilled - Third edition w/UML 2.0UML book 2: Applying UML and patternsUML book 3: UML and Unified Process

antas kjent


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Eksamen

Case-basert oppgave (ref. tidligere eksamen)Alle skriftlige hjelpemidler er tillatt

09-12 –, tirsdag 1 . juni

Eksempler diskuteres neste uke, torsdag 13/5

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