return the singleton for this distance metrics . concode_field_sep double FUZZY_DISTANCE concode_elem_sep double STRICT_DISTANCE concode_elem_sep CLineagePathDistance instance concode_elem_sep boolean _fuzzyMatch concode_elem_sep String LABEL concode_field_sep void setStrictMatch concode_elem_sep boolean strictMatch concode_elem_sep String getLabel concode_elem_sep boolean looseMatch concode_elem_sep double computeSimilarity concode_elem_sep double computeSimilarity concode_elem_sep double getSimilarity
CLineagePathDistance function ( ) { if ( instance == null ) { instance = new CLineagePathDistance ( ) ; } return instance ; }