Make more elements configurable in pomElements

src/main/java/org/codehaus/mojo/flatten/FlattenDescriptor.java

@@ -84,6 +84,48 @@ public void setHandling(PomProperty<?> property, ElementHandling handling) {
         this.name2handlingMap.put(property.getName(), handling);
     }
 
+    /**
+     * @return {@link ElementHandling} for {@link Model#getArtifactId() artifactId}.
+     */
+    public ElementHandling getArtifactId() {
+        return getHandling(PomProperty.ARTIFACT_ID);
+    }
+
+    /**
+     * @param artifactId the {@link #setArtifactId(ElementHandling) artifactId} to set.
+     */
+    public void setArtifactId(ElementHandling artifactId) {
+        setHandling(PomProperty.ARTIFACT_ID, artifactId);
+    }
+
+    /**
+     * @return {@link ElementHandling} for {@link Model#getGroupId() groupId}.
+     */
+    public ElementHandling getGroupId() {
+        return getHandling(PomProperty.GROUP_ID);
+    }
+
+    /**
+     * @param groupId the {@link #setGroupId(ElementHandling) groupId} to set.
+     */
+    public void setGroupId(ElementHandling groupId) {
+        setHandling(PomProperty.GROUP_ID, groupId);
+    }
+
+    /**
+     * @return {@link ElementHandling} for {@link Model#getPackaging() packaging}.
+     */
+    public ElementHandling getPackaging() {
+        return getHandling(PomProperty.PACKAGING);
+    }
+
+    /**
+     * @param packaging the {@link #setPackaging(ElementHandling) packaging} to set.
+     */
+    public void setPackaging(ElementHandling packaging) {
+        setHandling(PomProperty.PACKAGING, packaging);
+    }
+
     /**
      * @return {@link ElementHandling} for {@link Model#getName() name}.
      */

src/main/java/org/codehaus/mojo/flatten/FlattenMode.java

@@ -130,6 +130,9 @@ public FlattenDescriptor getDescriptor() {
                 descriptor.setMailingLists(ElementHandling.interpolate);
                 descriptor.setModules(ElementHandling.interpolate);
                 descriptor.setName(ElementHandling.interpolate);
+                descriptor.setArtifactId(ElementHandling.interpolate);
+                descriptor.setGroupId(ElementHandling.interpolate);
+                descriptor.setPackaging(ElementHandling.interpolate);
                 descriptor.setOrganization(ElementHandling.interpolate);
                 descriptor.setParent(ElementHandling.resolve);
                 descriptor.setPluginManagement(ElementHandling.interpolate);