How to use

toString

method

in

org.apache.lucene.search.SortField

@Override
public String toString() {
 StringBuilder buffer = new StringBuilder();
 for (int i = 0; i < fields.length; i++) {
  buffer.append(fields[i].toString());
  if ((i+1) < fields.length)
   buffer.append(',');
 }
 return buffer.toString();
}

 @Override
 public Explanation explain(IndexSearcher searcher, Explanation firstPassExplanation, int docID) throws IOException {
  TopDocs oneHit = new TopDocs(1, new ScoreDoc[] {new ScoreDoc(docID, firstPassExplanation.getValue())});
  TopDocs hits = rescore(searcher, oneHit, 1);
  assert hits.totalHits == 1;

  List<Explanation> subs = new ArrayList<>();

  // Add first pass:
  Explanation first = Explanation.match(firstPassExplanation.getValue(), "first pass score", firstPassExplanation);
  subs.add(first);

  FieldDoc fieldDoc = (FieldDoc) hits.scoreDocs[0];

  // Add sort values:
  SortField[] sortFields = sort.getSort();
  for(int i=0;i<sortFields.length;i++) {
   subs.add(Explanation.match(0.0f, "sort field " + sortFields[i].toString() + " value=" + fieldDoc.fields[i]));
  }

  // TODO: if we could ask the Sort to explain itself then
  // we wouldn't need the separate ExpressionRescorer...
  return Explanation.match(0.0f, "sort field values for sort=" + sort.toString(), subs);
 }
}

@Override
public String toString() {
 StringBuilder buffer = new StringBuilder();
 for (int i = 0; i < fields.length; i++) {
  buffer.append(fields[i].toString());
  if ((i+1) < fields.length)
   buffer.append(',');
 }
 return buffer.toString();
}

 public String toString() {
  StringBuffer buffer = new StringBuffer();

  for (int i = 0; i < fields.length; i++) {
   buffer.append(fields[i].toString());
   if ((i+1) < fields.length)
    buffer.append(',');
  }

  return buffer.toString();
 }
}

@Override
public String toString() {
 StringBuilder buffer = new StringBuilder();
 for (int i = 0; i < fields.length; i++) {
  buffer.append(fields[i].toString());
  if ((i+1) < fields.length)
   buffer.append(',');
 }
 return buffer.toString();
}

 public String toString() {
  StringBuffer buffer = new StringBuffer();

  for (int i = 0; i < fields.length; i++) {
   buffer.append(fields[i].toString());
   if ((i +1) < fields.length)
    buffer.append(',');
  }

  return buffer.toString();
 }
}

@Override
public String toString() {
 StringBuilder buffer = new StringBuilder();
 for (int i = 0; i < fields.length; i++) {
  buffer.append(fields[i].toString());
  if ((i+1) < fields.length)
   buffer.append(',');
 }
 return buffer.toString();
}

 public String toString() {
  StringBuffer buffer = new StringBuffer();

  for (int i = 0; i < fields.length; i++) {
   buffer.append(fields[i].toString());
   if ((i+1) < fields.length)
    buffer.append(',');
  }

  return buffer.toString();
 }
}

 @Override
 public Explanation explain(IndexSearcher searcher, Explanation firstPassExplanation, int docID) throws IOException {
  TopDocs oneHit = new TopDocs(1, new ScoreDoc[] {new ScoreDoc(docID, firstPassExplanation.getValue())});
  TopDocs hits = rescore(searcher, oneHit, 1);
  assert hits.totalHits == 1;

  List<Explanation> subs = new ArrayList<>();

  // Add first pass:
  Explanation first = Explanation.match(firstPassExplanation.getValue(), "first pass score", firstPassExplanation);
  subs.add(first);

  FieldDoc fieldDoc = (FieldDoc) hits.scoreDocs[0];

  // Add sort values:
  SortField[] sortFields = sort.getSort();
  for(int i=0;i<sortFields.length;i++) {
   subs.add(Explanation.match(0.0f, "sort field " + sortFields[i].toString() + " value=" + fieldDoc.fields[i]));
  }

  // TODO: if we could ask the Sort to explain itself then
  // we wouldn't need the separate ExpressionRescorer...
  return Explanation.match(0.0f, "sort field values for sort=" + sort.toString(), subs);
 }
}

 @Override
 public Explanation explain(IndexSearcher searcher, Explanation firstPassExplanation, int docID) throws IOException {
  TopDocs oneHit = new TopDocs(1, new ScoreDoc[] {new ScoreDoc(docID, firstPassExplanation.getValue())});
  TopDocs hits = rescore(searcher, oneHit, 1);
  assert hits.totalHits == 1;

  List<Explanation> subs = new ArrayList<>();

  // Add first pass:
  Explanation first = Explanation.match(firstPassExplanation.getValue(), "first pass score", firstPassExplanation);
  subs.add(first);

  FieldDoc fieldDoc = (FieldDoc) hits.scoreDocs[0];

  // Add sort values:
  SortField[] sortFields = sort.getSort();
  for(int i=0;i<sortFields.length;i++) {
   subs.add(Explanation.match(0.0f, "sort field " + sortFields[i].toString() + " value=" + fieldDoc.fields[i]));
  }

  // TODO: if we could ask the Sort to explain itself then
  // we wouldn't need the separate ExpressionRescorer...
  return Explanation.match(0.0f, "sort field values for sort=" + sort.toString(), subs);
 }
}

 @Override
 public Explanation explain(IndexSearcher searcher, Explanation firstPassExplanation, int docID) throws IOException {
  TopDocs oneHit = new TopDocs(1, new ScoreDoc[] {new ScoreDoc(docID, firstPassExplanation.getValue())});
  TopDocs hits = rescore(searcher, oneHit, 1);
  assert hits.totalHits == 1;

  List<Explanation> subs = new ArrayList<>();

  // Add first pass:
  Explanation first = Explanation.match(firstPassExplanation.getValue(), "first pass score", firstPassExplanation);
  subs.add(first);

  FieldDoc fieldDoc = (FieldDoc) hits.scoreDocs[0];

  // Add sort values:
  SortField[] sortFields = sort.getSort();
  for(int i=0;i<sortFields.length;i++) {
   subs.add(Explanation.match(0.0f, "sort field " + sortFields[i].toString() + " value=" + fieldDoc.fields[i]));
  }

  // TODO: if we could ask the Sort to explain itself then
  // we wouldn't need the separate ExpressionRescorer...
  return Explanation.match(0.0f, "sort field values for sort=" + sort.toString(), subs);
 }
}