private static Class<? extends FbxObject> getImplementingClass(String elementName, String subclassName) {
        if (elementName.equals("NodeAttribute")) {
            if (subclassName.equals("Root")) {
                // Root of skeleton, may not actually be set.
                return FbxNullAttribute.class;
            } else if (subclassName.equals("LimbNode")) {
                // Specifies some limb attributes, optional.
                return FbxNullAttribute.class;
            } else if (subclassName.equals("Null")) {
                // An "Empty" or "Node" without any specific behavior.
                return FbxNullAttribute.class;
            } else if (subclassName.equals("IKEffector") ||
                       subclassName.equals("FKEffector")) {
                // jME3 does not support IK.
                return FbxNullAttribute.class;
            } else if (subclassName.equals("Light")) {
                // TODO: support lights
                return FbxNullAttribute.class;
            } else if (subclassName.equals("Camera")) {
                // TODO: support cameras
                return FbxNullAttribute.class;
            } else {
                // NodeAttribute - Unknown
                logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
                return FbxUnknownObject.class;
            }
        } else if (elementName.equals("Geometry") && subclassName.equals("Mesh")) {
            // NodeAttribute - Mesh Data
            return FbxMesh.class;
        } else if (elementName.equals("Model")) {
            // Scene Graph Node
            // Determine specific subclass (e.g. Mesh, Null, or LimbNode?)
            if (subclassName.equals("LimbNode")) {
                return FbxLimbNode.class; // Child Bone of Skeleton?
            } else {
                return FbxNode.class;
            }
        } else if (elementName.equals("Pose")) {
            if (subclassName.equals("BindPose")) {
                // Bind Pose Information
                return FbxBindPose.class;
            } else {
                // Rest Pose Information
                // OR
                // Other Data (???)
                logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
                return FbxUnknownObject.class;
            }
        } else if (elementName.equals("Material")) {
            return FbxMaterial.class;
        } else if (elementName.equals("Deformer")) {
            // Deformer
            if (subclassName.equals("Skin")) {
                // FBXSkinDeformer (mapping between FBXMesh & FBXClusters)
                return FbxSkinDeformer.class;
            } else if (subclassName.equals("Cluster")) {
                // Cluster (aka mapping between FBXMesh vertices & weights for bone)
                return FbxCluster.class;
            } else {
                logger.log(Level.WARNING, "Unknown deformer subclass: {0}. Ignoring.", subclassName);
                return FbxUnknownObject.class;
            }
        } else if (elementName.equals("Video")) {
            if (subclassName.equals("Clip")) {
                return FbxImage.class;
            } else {
                logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
                return FbxUnknownObject.class;
            }
        } else if (elementName.equals("Texture")) {
            return FbxTexture.class;
        } else if (elementName.equals("AnimationStack")) {
            // AnimationStack (jME Animation)
            return FbxAnimStack.class;
        } else if (elementName.equals("AnimationLayer")) {
            // AnimationLayer (for blended animation - not supported)
            return FbxAnimLayer.class;
        } else if (elementName.equals("AnimationCurveNode")) {
            // AnimationCurveNode
            return FbxAnimCurveNode.class;
        } else if (elementName.equals("AnimationCurve")) {
            // AnimationCurve (Data)
            return FbxAnimCurve.class;
        } else if (elementName.equals("SceneInfo")) {
            // Old-style FBX 6.1 uses this. Nothing useful here.
            return FbxUnknownObject.class;
        } else {
            logger.log(Level.WARNING, "Unknown object class: {0}. Ignoring.", elementName);
            return FbxUnknownObject.class;
        }
    }
A private constructor to inhibit instantiation of this class.
jme3-plugins/src/fbx/java/com/jme3/scene/plugins/fbx/obj/FbxObjectFactory.java