public StringBuilder appendItemsTo(StringBuilder buf, VectorFieldTypeInformation<BitVector> meta) {
    int it = this.iter();
    if(this.iterValid(it)) {
      while(true) {
        int v = this.iterDim(it);
        String lbl = (meta != null) ? meta.getLabel(v) : null;
        if(lbl == null) {
          buf.append(v);
        }
        else {
          buf.append(lbl);
        }
        it = this.iterAdvance(it);
        if(!this.iterValid(it)) {
          break;
        }
        buf.append(", ");
      }
    }
    return buf;
  }
public StringBuilder appendItemsTo ( StringBuilder buf , VectorFieldTypeInformation < BitVector > meta ) { int it = this . iter ( ) ; if ( this . iterValid ( it ) ) { while ( true ) { int v = this . iterDim ( it ) ; String lbl = ( meta != null ) ? meta . getLabel ( v ) : null ; if ( lbl == null ) { buf . append ( v ) ; } else { buf . append ( lbl ) ; } it = this . iterAdvance ( it ) ; if ( ! this . iterValid ( it ) ) { break ; } buf . append ( ", " ) ; } } return buf ; }
Only append the items to a string buffer.

@param buf Buffer
@param meta Relation metadata (for labels)
@return String buffer for chaining.