EStructuralFeatureValueProviderBase(EClass annotatedSpecificationEClass)

- If there is only one EStructuralFeature in the annotation's EClass, registered it with the DEFAULT_KEY
- This results in a more readable column heading (which is exactly the String returned by the user-supplied implementation of getAnnotationName(), instead of "<user-supplied String> : <EStructuralFeature name>"
refs 1841

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/valueprovider/EStructuralFeatureValueProviderBase.java

@@ -23,6 +23,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.ecore.EAttribute;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EClassifier;
@@ -121,10 +122,19 @@ public abstract class EStructuralFeatureValueProviderBase<T extends IAnnotatedSp
 
 		structuralFeatureMap = new HashMap<String, EStructuralFeature>();
 
-		for(EStructuralFeature structuralFeature : (inheritedFeatures
-				? annotatedSpecificationEClass.getEAllStructuralFeatures()
-				: annotatedSpecificationEClass.getEStructuralFeatures())) {
-			structuralFeatureMap.put(structuralFeature.getName(), structuralFeature);
+		EList<EStructuralFeature> featureList;
+		if(inheritedFeatures) {
+			featureList = annotatedSpecificationEClass.getEAllStructuralFeatures();
+		} else {
+			featureList = annotatedSpecificationEClass.getEStructuralFeatures();
+		}
+
+		if(featureList.size() == 1) {
+			structuralFeatureMap.put(DEFAULT_KEY, featureList.get(0));
+		} else {
+			for(EStructuralFeature structuralFeature : featureList) {
+				structuralFeatureMap.put(structuralFeature.getName(), structuralFeature);
+			}
 		}
 
 		handlesMultipleEstructuralFeatures = true;