本文整理了Java中com.vaadin.flow.data.provider.Query.getFilter方法的一些代码示例，展示了Query.getFilter的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query.getFilter方法的具体详情如下：
包路径：com.vaadin.flow.data.provider.Query
类名称：Query
方法名：getFilter

Query.getFilter介绍

[英]Gets the filter for items to fetch.
[中]获取要获取的项的筛选器。

代码示例

代码示例来源：origin: com.vaadin/flow-data

private Stream<T> getFilteredStream(
    Query<T, SerializablePredicate<T>> query) {
  Stream<T> stream = backend.stream();
  // Apply our own filters first so that query filters never see the items
  // that would already have been filtered out
  if (filter != null) {
    stream = stream.filter(filter);
  }
  stream = query.getFilter().map(stream::filter).orElse(stream);
  return stream;
}

代码示例来源：origin: com.vaadin/flow-data

@Override
protected F getFilter(Query<T, Q> query) {
  Q queryFilter = query.getFilter().orElse(null);
  if (configuredFilter == null && queryFilter == null) {
    return null;
  }
  return combineFilters(queryFilter, configuredFilter);
}

代码示例来源：origin: com.vaadin/flow-data

/**
   * Gets the filter converted from a query filter by the
   * {@code filterConverter}.
   *
   * @param filterConverter
   *            callback that converts the filter in the query of the wrapped
   *            data provider into a filter supported by this data provider.
   *            Will only be called if the query contains a filter. Not
   *            <code>null</code>
   * @param query
   *            a query with a filter to convert
   * @return a converted filter, may be {@code null} if the query has no
   *         filter
   *
   * @param <C>
   *            the filter type that the wrapped data provider accepts;
   *            typically provided by a Component
   */
  public static <T, C, F> F convertFilter(
      SerializableFunction<C, F> filterConverter, Query<T, C> query) {
    return query.getFilter().map(filterConverter).orElse(null);
  }
}

代码示例来源：origin: com.vaadin/flow-data

private Query<T, F> mixInSortOrders(Query<T, F> query) {
  if (sortOrders.isEmpty()) {
    return query;
  }
  Set<String> sortedPropertyNames = query.getSortOrders().stream()
      .map(SortOrder::getSorted).collect(Collectors.toSet());
  List<QuerySortOrder> combinedSortOrders = Stream
      .concat(query.getSortOrders().stream(),
          sortOrders.stream()
              .filter(order -> !sortedPropertyNames
                  .contains(order.getSorted())))
      .collect(Collectors.toList());
  return new Query<>(query.getOffset(), query.getLimit(),
      combinedSortOrders, query.getInMemorySorting(),
      query.getFilter().orElse(null));
}

代码示例来源：origin: com.holon-platform.vaadin/holon-vaadin-flow

query.getFilter().ifPresent(f -> {
  QueryFilter filter = filterConverter.apply(f);
  if (filter != null) {