eclipse-emf

问题 I was getting this exception but I am not able to understand what is happening there. Because on compilation time my class able access apache POI classes but on runtime my classes throws exception that he is not able find org.apache.poi.xssf.usermodel.XSSFWorkbook . Till now whatever solution is provided on net I have tried everything but not understanding what I am missing. And weird thing is same code and same Apache POI library working on my friend's eclipse. We both have identical

问题 I was getting this exception but I am not able to understand what is happening there. Because on compilation time my class able access apache POI classes but on runtime my classes throws exception that he is not able find org.apache.poi.xssf.usermodel.XSSFWorkbook . Till now whatever solution is provided on net I have tried everything but not understanding what I am missing. And weird thing is same code and same Apache POI library working on my friend's eclipse. We both have identical

问题 How to get information about an attribute of enum type? I have an EClass with an attribute which is type of enum. I know you can use the following code to determine the type of an attribute EDataType type = attr.getEAttributeType(); if (type == EcorePackage.Literals.EINT); //do something if (type == EcorePackage.Literals.EENUM); // do something But the line ( type == EcorePackage.Literals.EENUM ) doesn't work, thus I am wondering how to determine an attribute is type of eEnum, given any Ecore

问题 I have implemented a GEF editor for a graph-like EMF model, with a remove command for a certain type of node in the graph. I think I've done all the necessary steps in order to make this set up work (vainolo's blog has been a great help). However, when I'm deleting a model element, the view doesn't get refreshed , i.e., the figure for the model element isn't removed from the editor view, and I have no idea why. I'd be extremely grateful if somebody could have a look at my sources and point me

问题 Defining metamodels with Xcore is a lot easier than with EMF and Ecore. The problem is that I need the metamodels as Ecore files. Is it possible to export Xcore model to Ecore model? I don't see any export options in Eclipse. 回答1: The official Wiki describes how to export an Xcore model to a GenModel. It looks like the same can be done with the Ecore Model. Especially because the author mentions: [...] Xcore resource does physically contain a GenModel and an Ecore model [...] 来源： https:/

问题 I'm trying to implement the sample code to this article from 2002 (I know..), but cannot get the schema to load. import org.eclipse.emf.common.util.URI; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.emf.ecore.resource.ResourceSet; import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl; import org.eclipse.xsd.util.XSDResourceImpl; ResourceSet resourceSet = new ResourceSetImpl(); // I replaced the deprecated createDeviceURI with createURI as recommended in JavaDoc

问题 I am in the middle of an Acceleo Transformation aimed at producing code (i.e. Java) from an input UML model. Some elements of this UML model (i.e. Activities Opaque actions) contain some text which is conform to an Xtext grammar and I'd like to get the equivalent AST Ecore representation in the Acceleo transformation. To this end I have developed a Java class with a method which takes as input a string, containing the DSL excerpt, and produces an Ecore model conform to it (see http://www

问题 I get the following exception: java.lang.RuntimeException: Cannot create a resource for 'file:/home/my_conf.xml'; a registered resource factory is needed The "explosion" code is like this and stops at: resource = resourceSet..... ResourceSet resourceSet = new ResourceSetImpl(); Resource resource = null; File f = new File(filename); URI uri = URI.createFileURI(f.getAbsolutePath()); if (!f.exists()) { throw new Exception(filename + " does not exist"); } else { resource = resourceSet.getResource

问题 I want to port a legacy data format, which consists of concepts similar to Eclipse Modeling Framework (EMF) Ecore: Elements with Parameters which have different datatypes and default values. A custom-made tool lets you edit such model instances by a fancy table-based GUI. Also, a common feature for the Parameters is that a Derivation Rule can be added which specifies that the Parameter value gets computed automatically from other parameters. That also seems similar to Ecore derived Attributes

问题 In my Ecore model all types that come from outside the current model are not resolved by their proxies. All fields of the object returned by getType() are null and only the storage type URI is filled in at runtime. Here is an extract of my model: <?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="model" nsURI="http:///model