How to use

getCurrentLabel

method

in

org.apache.lucene.util.fst.FSTEnum

/** Rewinds enum state to match the shared prefix between
 *  current term and target term */
protected final void rewindPrefix() throws IOException {
 if (upto == 0) {
  //System.out.println("  init");
  upto = 1;
  fst.readFirstTargetArc(getArc(0), getArc(1), fstReader);
  return;
 }
 //System.out.println("  rewind upto=" + upto + " vs targetLength=" + targetLength);
 final int currentLimit = upto;
 upto = 1;
 while (upto < currentLimit && upto <= targetLength+1) {
  final int cmp = getCurrentLabel() - getTargetLabel();
  if (cmp < 0) {
   // seek forward
   //System.out.println("    seek fwd");
   break;
  } else if (cmp > 0) {
   // seek backwards -- reset this arc to the first arc
   final FST.Arc<T> arc = getArc(upto);
   fst.readFirstTargetArc(getArc(upto-1), arc, fstReader);
   //System.out.println("    seek first arc");
   break;
  }
  upto++;
 }
 //System.out.println("  fall through upto=" + upto);
}

/** Rewinds enum state to match the shared prefix between
 *  current term and target term */
protected final void rewindPrefix() throws IOException {
 if (upto == 0) {
  //System.out.println("  init");
  upto = 1;
  fst.readFirstTargetArc(getArc(0), getArc(1), fstReader);
  return;
 }
 //System.out.println("  rewind upto=" + upto + " vs targetLength=" + targetLength);
 final int currentLimit = upto;
 upto = 1;
 while (upto < currentLimit && upto <= targetLength+1) {
  final int cmp = getCurrentLabel() - getTargetLabel();
  if (cmp < 0) {
   // seek forward
   //System.out.println("    seek fwd");
   break;
  } else if (cmp > 0) {
   // seek backwards -- reset this arc to the first arc
   final FST.Arc<T> arc = getArc(upto);
   fst.readFirstTargetArc(getArc(upto-1), arc, fstReader);
   //System.out.println("    seek first arc");
   break;
  }
  upto++;
 }
 //System.out.println("  fall through upto=" + upto);
}

/** Rewinds enum state to match the shared prefix between
 *  current term and target term */
protected final void rewindPrefix() throws IOException {
 if (upto == 0) {
  //System.out.println("  init");
  upto = 1;
  fst.readFirstTargetArc(getArc(0), getArc(1), fstReader);
  return;
 }
 //System.out.println("  rewind upto=" + upto + " vs targetLength=" + targetLength);
 final int currentLimit = upto;
 upto = 1;
 while (upto < currentLimit && upto <= targetLength+1) {
  final int cmp = getCurrentLabel() - getTargetLabel();
  if (cmp < 0) {
   // seek forward
   //System.out.println("    seek fwd");
   break;
  } else if (cmp > 0) {
   // seek backwards -- reset this arc to the first arc
   final FST.Arc<T> arc = getArc(upto);
   fst.readFirstTargetArc(getArc(upto-1), arc, fstReader);
   //System.out.println("    seek first arc");
   break;
  }
  upto++;
 }
 //System.out.println("  fall through upto=" + upto);
}

/** Rewinds enum state to match the shared prefix between
 *  current term and target term */
protected final void rewindPrefix() throws IOException {
 if (upto == 0) {
  //System.out.println("  init");
  upto = 1;
  fst.readFirstTargetArc(getArc(0), getArc(1), fstReader);
  return;
 }
 //System.out.println("  rewind upto=" + upto + " vs targetLength=" + targetLength);
 final int currentLimit = upto;
 upto = 1;
 while (upto < currentLimit && upto <= targetLength+1) {
  final int cmp = getCurrentLabel() - getTargetLabel();
  if (cmp < 0) {
   // seek forward
   //System.out.println("    seek fwd");
   break;
  } else if (cmp > 0) {
   // seek backwards -- reset this arc to the first arc
   final FST.Arc<T> arc = getArc(upto);
   fst.readFirstTargetArc(getArc(upto-1), arc, fstReader);
   //System.out.println("    seek first arc");
   break;
  }
  upto++;
 }
 //System.out.println("  fall through upto=" + upto);
}