How to use

hasNext

method

in

com.arangodb.ArangoCursor

while (cursor.hasNext()) {
 VPackSlice aDocument = cursor.next();
 HashMap<String, ByteIterator> aMap = new HashMap<String, ByteIterator>(aDocument.size());

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

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

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

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

/**
 * 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();
}

/**
 * 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();
}

@Override
public Variables variables() {
  ArangoCursor<ArangoDBGraphVariables> iter = client.getGraphVariables(this.name, variables_id);
  if (iter.hasNext()) {
    ArangoDBGraphVariables v = iter.next();
    v.graph(this);
    return v;
  }
  else {
    throw new ArangoDBGraphException("Existing graph does not have a Variables collection");
  }
}

ArangoDBUtil.checkGraphForErrors(vertexCollections, edgeCollections, relations, graph, options);
ArangoCursor<String> iter = client.getGraphVariablesId(this.name);
if (iter.hasNext()) {
  this.variables_id = iter.next();

private Object convertResult(final ArangoCursor<?> result, final ArangoParameterAccessor accessor) {
  if (isExistsQuery()) {
    if (!result.hasNext()) {
      return false;
    }
    return (Integer) result.next() > 0;
  }
  final ArangoResultConverter resultConverter = new ArangoResultConverter(accessor, result, operations,
      domainClass);
  return resultConverter.convertResult(method.getReturnType().getType());
}

private Object convertResult(final ArangoCursor<?> result, final ArangoParameterAccessor accessor) {
  if (isExistsQuery()) {
    if (!result.hasNext()) {
      return false;
    }
    return (Integer) result.next() > 0;
  }
  final ArangoResultConverter resultConverter = new ArangoResultConverter(accessor, result, operations,
      domainClass);
  return resultConverter.convertResult(method.getReturnType().getType());
}

/**
 * Build a GeoResult from the given ArangoCursor
 *
 * @param cursor
 *            query result from driver
 * @return GeoResult object
 */
private GeoResult<?> buildGeoResult(final ArangoCursor<?> cursor) {
  GeoResult<?> geoResult = null;
  while (cursor.hasNext() && geoResult == null) {
    final Object object = cursor.next();
    if (!(object instanceof VPackSlice)) {
      continue;
    }
    final VPackSlice slice = (VPackSlice) object;
    final VPackSlice distSlice = slice.get("_distance");
    final Double distanceInMeters = distSlice.isDouble() ? distSlice.getAsDouble() : null;
    if (distanceInMeters == null) {
      continue;
    }
    final Object entity = operations.getConverter().read(domainClass, slice);
    final Distance distance = new Distance(distanceInMeters / 1000, Metrics.KILOMETERS);
    geoResult = new GeoResult<>(entity, distance);
  }
  return geoResult;
}

/**
 * Build a GeoResult from the given ArangoCursor
 *
 * @param cursor
 *            query result from driver
 * @return GeoResult object
 */
private GeoResult<?> buildGeoResult(final ArangoCursor<?> cursor) {
  GeoResult<?> geoResult = null;
  while (cursor.hasNext() && geoResult == null) {
    final Object object = cursor.next();
    if (!(object instanceof VPackSlice)) {
      continue;
    }
    final VPackSlice slice = (VPackSlice) object;
    final VPackSlice distSlice = slice.get("_distance");
    final Double distanceInMeters = distSlice.isDouble() ? distSlice.getAsDouble() : null;
    if (distanceInMeters == null) {
      continue;
    }
    final Object entity = operations.getConverter().read(domainClass, slice);
    final Distance distance = new Distance(distanceInMeters / 1000, Metrics.KILOMETERS);
    geoResult = new GeoResult<>(entity, distance);
  }
  return geoResult;
}