question: set an identifier for the node on which the event originates . concode_field_sep long serialVersionUID concode_elem_sep Serializable source concode_elem_sep UUID uuid concode_field_sep UUID getUUID concode_elem_sep Serializable getSource concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String toString
target: void function ( Serializable arg0 ) { this . source = arg0 ; }