(this.labelShape.setCursor(mxConstants.CURSOR_LABEL_HANDLE),this.customHandles=this.createCustomHandles());this.updateParentHighlight();this.redraw()};mxEdgeHandler.prototype.isParentHighlightVisible=mxVertexHandler.prototype.isParentHighlightVisible;mxEdgeHandler.prototype.destroyParentHighlight=mxVertexHandler.prototype.destroyParentHighlight;mxEdgeHandler.prototype.updateParentHighlight=mxVertexHandler.prototype.updateParentHighlight;mxEdgeHandler.prototype.createCustomHandles=function(){return null};