Package io.jenetics.jpx

Interface Filter<T,​R>

  • Type Parameters:
    T - the value type for the transformed objects
    R - the result type of the filtered object
    All Known Implementing Classes:
    Route.Builder, Track.Builder, TrackSegment.Builder
    public interface Filter<T,​R>
    Filter interface which contains the filter, map, flatMap and listMap methods for transforming values from type T.
    Since:
    1.1
    Version:
    1.1
    Author:
    Franz Wilhelmstötter

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      R build()
      Return a new object of type R which contains the elements of the applied filter functions.
      Filter<T,​R> filter​(Predicate<? super T> predicate)
      Return a filter consisting of the elements of this filter that matches the given predicate.
      Filter<T,​R> flatMap​(Function<? super T,​? extends List<T>> mapper)
      Return a filter consisting of the results of replacing each element with the contents of the mapped elements.
      Filter<T,​R> listMap​(Function<? super List<T>,​? extends List<T>> mapper)
      Return a filter with the results of the applying given mapper function.
      Filter<T,​R> map​(Function<? super T,​? extends T> mapper)
      Return a filter with the results of applying the given mapper function.

    • Method Detail

      • filter

        Filter<T,​R> filter​(Predicate<? super T> predicate)
        Return a filter consisting of the elements of this filter that matches the given predicate.
        Parameters:
        predicate - a non-interfering, stateless predicate to apply to each element to determine if it should be included
        Returns:
        a new filter

      • map

        Filter<T,​R> map​(Function<? super T,​? extends T> mapper)
        Return a filter with the results of applying the given mapper function.
        Parameters:
        mapper - a non-interfering, stateless function to apply to each element
        Returns:
        a new filter

      • flatMap

        Filter<T,​R> flatMap​(Function<? super T,​? extends List<T>> mapper)
        Return a filter consisting of the results of replacing each element with the contents of the mapped elements.
        Parameters:
        mapper - a non-interfering, stateless function to apply to each element which produces a list of new values
        Returns:
        a new filter

      • listMap

        Filter<T,​R> listMap​(Function<? super List<T>,​? extends List<T>> mapper)
        Return a filter with the results of the applying given mapper function.
        Parameters:
        mapper - a non-interfering, stateless function to apply to the existing elements
        Returns:
        a new filter

      • build

        R build()
        Return a new object of type R which contains the elements of the applied filter functions.
        Returns:
        a new object created from the given filter