Map<String,Serializable> params = eParams.createParams(eResourceURI.toString(), null);
EFeatureDataStore eStore = eStoreFactory.createDataStore(params);
EAttribute eAttribute = EFeaturePackage.eINSTANCE.getEFeature_ID();
EObjectCondition eCondition = newIsEqual(eAttribute, "F1");
WHERE where = new WHERE(eCondition);
eAttribute = EFeatureTestsPackage.eINSTANCE.getEFeatureData_Attribute();
TreeIterator<EObject> eObjects = eResource.getAllContents();
EFeatureFilter eFilter = new EFeatureFilter(where);
EFeatureQuery eQuery = new EFeatureQuery(eObjects, eFilter);