How to use

next

method

in

com.arangodb.ArangoCursor

cursor = arangoDB.db(databaseName).query(aqlQuery, bindVars, null, VPackSlice.class);
while (cursor.hasNext()) {
 VPackSlice aDocument = cursor.next();
 HashMap<String, ByteIterator> aMap = new HashMap<String, ByteIterator>(aDocument.size());
 if (!this.fillMap(aMap, aDocument)) {

  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();
}

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

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

/**
 * 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();
}

/**
 * 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();
}

@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");
  }
}

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;
}