Interface MapFilter<R,​S>


  • public interface MapFilter<R,​S>
    Combines the actions of Map and Filter, mapping unacceptable objects to null and acceptable ones to their mapped value.
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      S accept​(R x)
      a compiled filter and test - returns null if x is unacceptable, and the mapped value if x is acceptable; clearly useless if the mapping might deliver null.
    • Method Detail

      • accept

        S accept​(R x)
        a compiled filter and test - returns null if x is unacceptable, and the mapped value if x is acceptable; clearly useless if the mapping might deliver null. Tough.