void function ( Node arg0 ) { this . sourceNode = arg0 ; }
sets source node for a given edge . concode_field_sep Node sourceNode concode_elem_sep String id concode_elem_sep Node destinationNode concode_field_sep void print concode_elem_sep Node getDestination concode_elem_sep Node getSource concode_elem_sep void setDestination concode_elem_sep boolean validate