function overNode(e) {
      var node = e.data.node,
          embedSettings = self.settings.embedObjects({
            prefix: prefix
          });

      if (!embedSettings('enableHovering'))
        return;

      var hover = (renderers[node.type] || renderers.def).create(
        node,
        self.domElements.nodes[node.id],
        self.measurementCanvas,
        embedSettings
      );

      self.domElements.hovers[node.id] = hover;

      // Inserting the hover in the dom
      self.domElements.groups.hovers.appendChild(hover);
      hoveredNode = node;
    }
This method binds the hover events to the renderer.

@param  {string} prefix The renderer prefix.