get a value source which can compute the value of this expression in the context of the given bindings . concode_field_sep String[] variables concode_elem_sep String sourceText concode_field_sep Rescorer getRescorer concode_elem_sep SortField getSortField concode_elem_sep double evaluate
ValueSource function ( Bindings arg0 ) { return new ExpressionValueSource ( arg0 , this ) ; }