EMF Demo

╰半夏微凉° 2022-08-05 00:57 155阅读 0赞

## Install EMF Plugin of Eclipse ##

Ecore Diagram Editor

## Create EMF Project ##

Take "Empty EMF Project" for instance

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## Create Ecore Model ##

### New "Ecore Model" under folder "model"    ###

### Create "EPackage", "EInterface", "EClass", "EEnum"    ###

### Create "EReference", "EAttribute", "EOperation" ###

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Open With "XML Editor"

<?xml version="1.0" encoding="UTF-8"?>
    <ecore:EPackage xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="fruit" nsURI="http:///fruit.ecore" nsPrefix="fruit">
      <eClassifiers xsi:type="ecore:EClass" name="Fruit" abstract="true" interface="true">
        <eOperations name="grow">
          <eParameters name="years" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject"/>
        </eOperations>
        <eOperations name="harvest" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject">
          <eParameters name="amount" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject"/>
        </eOperations>
        <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
        <eStructuralFeatures xsi:type="ecore:EAttribute" name="weight" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject"/>
      </eClassifiers>
      <eClassifiers xsi:type="ecore:EClass" name="Apple" eSuperTypes="#//Fruit">
        <eOperations name="appleColor" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
        <eStructuralFeatures xsi:type="ecore:EAttribute" name="color" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
      </eClassifiers>
      <eClassifiers xsi:type="ecore:EClass" name="Pear" eSuperTypes="#//Fruit">
        <eOperations name="pearWater" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject"/>
        <eStructuralFeatures xsi:type="ecore:EAttribute" name="water" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EIntegerObject"/>
      </eClassifiers>
      <eClassifiers xsi:type="ecore:EClass" name="Factory">
        <eOperations name="create" eType="#//Fruit">
          <eParameters name="fruitKind" eType="#//FruitKind"/>
        </eOperations>
      </eClassifiers>
      <eClassifiers xsi:type="ecore:EEnum" name="FruitKind">
        <eLiterals name="APPLE" value="1"/>
        <eLiterals name="PEAR" value="2"/>
        <eLiterals name="PEACH" value="3"/>
      </eClassifiers>
    </ecore:EPackage>

## Create EMF Generator Model ##

### New "EMF Generator Model" via loading above "Ecore Model" file    ###

### Open With "EMF Generator" ###

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## Generate Model Code ##

### Select "generate \* Code" ###

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![Image 1][]

After do "Generate Model Code", you can see model code as below:

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## Install UML Plugin of Eclipse ##

UML Designer

## Export UML Model ##

### Click "Export Model..." ###

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### Choose "UML model" ###

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Finally you can see UML Model file as below:

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## Generate Ecore Diagram ##

### Right click "Initialize Ecore Diagram..." ###

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### Select a representation type ###

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### Select a semantic element    ###

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### Select all and navigate to class diagram ###

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### Add Related Elements ###

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### Select all Related Elements ###

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### Layout Diagram ###

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Finally you can see diagram as below:

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### Export diagram as image ###

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![Image 1][]

[Center]: /images/20220805/97bba1b8ceab44f0a94d4d26953ce7b5.png
[Center 1]: /images/20220805/3d7dc8c285de4f4badf50fccafb2b102.png
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