[英]Register Ecore meta-model programmatically
我使用转换引擎在运行时创建一个Ecore元模型,我想知道我们如何使用EMF注册该元模型,以便它可以识别元模型?
If you have the code generated by your metamodel: 如果您拥有元模型生成的代码:
resourceSet.getPackageRegistry()
.put(org.eclipse.emf.codegen.ecore.genmodel.GenModelPackage.eINSTANCE.getNsURI()
, org.eclipse.emf.codegen.ecore.genmodel.GenModelPackage.eINSTANCE);
(here for the "genmodel" metamodel) (这里是“genmodel”元模型)
If you only have the .ecore
file: 如果您只有
.ecore
文件:
// register globally the Ecore Resource Factory to the ".ecore" extension
// weird that we need to do this, but well...
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put(
"ecore", new EcoreResourceFactoryImpl());
ResourceSet rs = new ResourceSetImpl();
// enable extended metadata
final ExtendedMetaData extendedMetaData = new BasicExtendedMetaData(rs.getPackageRegistry());
rs.getLoadOptions().put(XMLResource.OPTION_EXTENDED_META_DATA,
extendedMetaData);
Resource r = rs.getResource(uriOfYourModel, true);
EObject eObject = r.getContents().get(0);
if (eObject instanceof EPackage) {
EPackage p = (EPackage)eObject;
rs.getPackageRegistry().put(p.getNsURI(), p);
}
You can find a bit more about this code here with the method named registerEcorePackages()
, used to register .ecore
file in the workspace (with their workspace fullpath) in our custom package registry. 您可以使用名为
registerEcorePackages()
的方法在此处找到有关此代码的更多信息,该方法用于在我们的自定义程序包注册表中在工作区中注册.ecore
文件(带有工作区完整路径)。 If you want to register your metamodel in EMF global package registry, replace resourceSet.getPackageRegistry()
by EPackage.Registry.INSTANCE
. 如果要在EMF全局包注册表中注册元模型,请使用
EPackage.Registry.INSTANCE
替换resourceSet.getPackageRegistry()
。
I had to modify the code from @sbegaudeau a bit for it to work: 我不得不修改@sbegaudeau中的代码以使其工作:
Replace 更换
rs.getPackageRegistry().put(p.getNsURI(), p);
with 同
EPackage.Registry.INSTANCE.put(p.getNsURI(), p);
Also, somehow I cannot register the .ecore type. 另外,不知何故,我无法注册.ecore类型。 Had to use "*":
Resource.Factory.Registry.INSTANCE. getExtensionToFactoryMap().put("*", new EcoreResourceFactoryImpl());
不得不使用“*”:
Resource.Factory.Registry.INSTANCE. getExtensionToFactoryMap().put("*", new EcoreResourceFactoryImpl());
Resource.Factory.Registry.INSTANCE. getExtensionToFactoryMap().put("*", new EcoreResourceFactoryImpl());
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