浅析Eclipse建模框架(EMF)及其动态能力 - 编程入门网

动态的（也就是非生成的）类可以在运行时刻用几种方法来创建。让我们先开始使用Ecore API以编程地方式来创建一个公司模型。公司模型用于描述一个公司，它有一个名称和部门。每个部门由一个数字来唯一标志出并且它还有雇员，每个雇员有一个名称。在下面的代码显示出一个相应于该模型的Ecore元模型。

EcoreFactory ecoreFactory = EcoreFactory.eINSTANCE; EcorePackage ecorePackage = EcorePackage.eINSTANCE; //创建一Company类 EClass companyClass = ecoreFactory.createEClass(); companyClass.setName("Company"); //创建公司名 EAttribute companyName = ecoreFactory.createEAttribute(); companyName.setName("name"); companyName.setEType(ecorePackage.getEString()); companyClass.getEStructuralFeatures().add(companyName); //创建一Employee类 EClass employeeClass = ecoreFactory.createEClass(); employeeClass.setName("Employee"); //在Employee类上添加一个名字属性 EAttribute employeeName = ecoreFactory.createEAttribute(); employeeName.setName("name"); employeeName.setEType(ecorePackage.getEString()); employeeClass.getEStructuralFeatures().add(employeeName); //创建一Department类 EClass departmentClass = ecoreFactory.createEClass(); departmentClass.setName("Department"); //添加department标志数字 EAttribute departmentNumber = ecoreFactory.createEAttribute(); departmentNumber.setName("number"); departmentNumber.setEType(ecorePackage.getEInt()); departmentClass.getEStructuralFeatures().add(departmentNumber); //department类能够包含到一个或多个employee的参考 EReference departmentEmployees = ecoreFactory.createEReference(); departmentEmployees.setName("employees"); departmentEmployees.setEType(employeeClass); //指定它可能是一个或多个employee departmentEmployees.setUpperBound(ETypedElement.UNBOUNDED_MULTIPLICITY); departmentEmployees.setContainment(true); departmentClass.getEStructuralFeatures().add(departmentEmployees); //company能够包含到一个或多个departments的参考 EReference companyDepartments = ecoreFactory.createEReference(); companyDepartments.setName("department"); companyDepartments.setEType(departmentClass); companyDepartments.setUpperBound(ETypedElement.UNBOUNDED_MULTIPLICITY); companyDepartments.setContainment(true); companyClass.getEStructuralFeatures().add(companyDepartments); //创建一个包-描述company EPackage companyPackage = ecoreFactory.createEPackage(); companyPackage.setName("company"); companyPackage.setNsPrefix("company"); companyPackage.setNsURI("http:///com.example.company.ecore"); companyPackage.getEClassifiers().add(employeeClass); companyPackage.getEClassifiers().add(departmentClass); companyPackage.getEClassifiers().add(companyClass); 通过使用反射API，你能创建并且

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