Class JSONCollectors

java.lang.Object
org.apache.tapestry5.json.JSONCollectors

public final class JSONCollectors extends Object
Implementations of Collector that implement reductions to JSONArray and to JSONObject.
Since:
5.7
  • Method Details

    • toArray

      public static <T> Collector<T,?,JSONArray> toArray()
      Returns a Collector that accumulates the input elements into a new JSONArray.
      Type Parameters:
      T - the type of the input elements
      Returns:
      a Collector which collects all the input elements into a JSONArray, in encounter order
      Since:
      5.7
    • toMap

      public static <T> Collector<T,?,JSONObject> toMap(Function<? super T,String> keyMapper, Function<? super T,Object> valueMapper)
      Returns a Collector that accumulates elements into a JSONObject whose keys and values are the result of applying the provided mapping functions to the input elements. In case of duplicate keys an IllegalStateException is thrown when the collection operation is performed.
      Type Parameters:
      T - the type of the input elements
      Parameters:
      keyMapper - a mapping function to produce String keys
      valueMapper - a mapping function to produce values
      Returns:
      a Collector which collects elements into a JSONObject whose keys and values are the result of applying mapping functions to the input elements
      Since:
      5.7