Interface Ref4ToBooleanFunction<A,B,C,D>

Type Parameters:
A - An input parameter type
B - An input parameter type
C - An input parameter type
D - An input parameter type
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface Ref4ToBooleanFunction<A,B,C,D>
A function that accepts 4 generic input parameters and returns a boolean.
Since:
1.2

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    apply(A a, B b, C c, D d)
    Applies the function.
    default Ref4ToBooleanFunction<A,B,C,D>
    negate()
    Returns a Ref4ToBooleanFunction that represents !this.apply(...).
    static <A,B,C,D> Ref4ToBooleanFunction<A,B,C,D>
    not(Ref4ToBooleanFunction<A,B,C,D> func)
    Returns a Ref4ToBooleanFunction that represents !func.apply(...).

  • Method Details

    • apply

      boolean apply(A a, B b, C c, D d)
      Applies the function.
      Parameters:
      a - An argument.
      b - An argument.
      c - An argument.
      d - An argument.
      Returns:
      The result.

    • negate

      default Ref4ToBooleanFunction<A,B,C,D> negate()
      Returns a Ref4ToBooleanFunction that represents !this.apply(...).
      Returns:
      The logical negation of this function.

    • not

      static <A,B,C,D> Ref4ToBooleanFunction<A,B,C,D> not(Ref4ToBooleanFunction<A,B,C,D> func)
      Returns a Ref4ToBooleanFunction that represents !func.apply(...).
      Type Parameters:
      A - A function parameter type
      B - A function parameter type
      C - A function parameter type
      D - A function parameter type
      Parameters:
      func - The function to negate. Must not be null.
      Returns:
      The logical negation of the specified function.
      Throws:
      NullPointerException - If the specified function is null.