How to use

ArangoCursor

in

com.arangodb

while (cursor.hasNext()) {
 VPackSlice aDocument = cursor.next();
 HashMap<String, ByteIterator> aMap = new HashMap<String, ByteIterator>(aDocument.size());
 if (!this.fillMap(aMap, aDocument)) {
if (cursor != null) {
 try {
  cursor.close();
 } catch (IOException e) {
  logger.error("Fail to close cursor", e);

  private Object getNext(final ArangoCursor<?> cursor) {
    return cursor.hasNext() ? cursor.next() : null;
  }
}

@SuppressWarnings("unchecked")
@Override
public IType next() {
  ArangoDBBaseDocument next = null;
  next = (ArangoDBBaseDocument) delegate.next();
  next.graph(graph);
  next.setPaired(true);
  return (IType) next;
}

public PageImpl<?> convertPage() {
  Assert.notNull(result.getStats().getFullCount(), MISSING_FULL_COUNT);
  return new PageImpl<>(result.asListRemaining(), accessor.getPageable(), result.getStats().getFullCount());
}

@Override
public boolean hasNext() {
  return delegate.hasNext();
}

public List<?> convertList() {
  return result.asListRemaining();
}

private Object _resolveOne(final String id, final TypeInformation<?> type, final Relations annotation) {
  return _resolve(id, type.getType(), annotation, true).first();
}

@Override
public T next() {
  if (pos >= result.getResult().size() && result.getHasMore()) {
    result = execute.next(cursor.getId());
    pos = 0;
  }
  if (!hasNext()) {
    throw new NoSuchElementException();
  }
  return deserialize(result.getResult().get(pos++), cursor.getType());
}

public GeoPage<?> convertGeoPage() {
  Assert.notNull(result.getStats().getFullCount(), MISSING_FULL_COUNT);
  return new GeoPage<>(buildGeoResults(result), accessor.getPageable(), result.getStats().getFullCount());
}

/**
 * Build a GeoResults object with the ArangoCursor returned by query execution
 *
 * @param cursor
 *            ArangoCursor containing query results
 * @return GeoResults object with all results
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
private GeoResults<?> buildGeoResults(final ArangoCursor<?> cursor) {
  final List<GeoResult<?>> list = new LinkedList<>();
  cursor.forEachRemaining(o -> {
    final GeoResult<?> geoResult = buildGeoResult(o);
    if (geoResult != null) {
      list.add(geoResult);
    }
  });
  return new GeoResults(list);
}

  private Object getNext(final ArangoCursor<?> cursor) {
    return cursor.hasNext() ? cursor.next() : null;
  }
}

@SuppressWarnings("unchecked")
@Override
public P next() {
  ArangoDBElementProperty<V> next = null;
  next = (ArangoDBElementProperty<V>) delegate.next();
  next.graph(graph);
  next.setPaired(true);
  return (P) next;
}

public PageImpl<?> convertPage() {
  Assert.notNull(result.getStats().getFullCount(), MISSING_FULL_COUNT);
  return new PageImpl<>(result.asListRemaining(), accessor.getPageable(), result.getStats().getFullCount());
}

@Override
public boolean hasNext() {
  return delegate.hasNext();
}

public List<?> convertList() {
  return result.asListRemaining();
}

private Object _resolveOne(final String id, final TypeInformation<?> type) {
  return _resolve(id, type.getType(), true).first();
}

public GeoPage<?> convertGeoPage() {
  Assert.notNull(result.getStats().getFullCount(), MISSING_FULL_COUNT);
  return new GeoPage<>(buildGeoResults(result), accessor.getPageable(), result.getStats().getFullCount());
}

/**
 * Build a GeoResults object with the ArangoCursor returned by query execution
 *
 * @param cursor
 *            ArangoCursor containing query results
 * @return GeoResults object with all results
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
private GeoResults<?> buildGeoResults(final ArangoCursor<?> cursor) {
  final List<GeoResult<?>> list = new LinkedList<>();
  cursor.forEachRemaining(o -> {
    final GeoResult<?> geoResult = buildGeoResult(o);
    if (geoResult != null) {
      list.add(geoResult);
    }
  });
  return new GeoResults(list);
}

/**
 * Finds one document which matches the given example object
 *
 * @param example
 *            example object to construct query with
 * @param <S>
 * @return An object representing the example if it exists, else null
 */
@Override
public <S extends T> Optional<S> findOne(final Example<S> example) {
  final ArangoCursor cursor = findAllInternal((Pageable) null, example, new HashMap());
  return cursor.hasNext() ? Optional.ofNullable((S) cursor.next()) : Optional.empty();
}

/**
 * Counts the number of documents in the collection which match with the given example
 *
 * @param example
 *            example object to construct query with
 * @param <S>
 * @return number of matching documents found
 */
@Override
public <S extends T> long count(final Example<S> example) {
  final Map<String, Object> bindVars = new HashMap<>();
  final String predicate = exampleConverter.convertExampleToPredicate(example, bindVars);
  final String filter = predicate.length() == 0 ? "" : " FILTER " + predicate;
  final String query = String.format("FOR e IN %s%s COLLECT WITH COUNT INTO length RETURN length",
    getCollectionName(), filter);
  final ArangoCursor<Long> cursor = arangoOperations.query(query, bindVars, null, Long.class);
  return cursor.next();
}