org.optaplanner.core.api.function

## Interface QuadFunction<A,B,C,D,R>

- Type Parameters:
    `A` - the type of the first argument to the function
    `B` - the type of the second argument to the function
    `C` - the type of the third argument to the function
    `D` - the type of the fourth argument to the function
    `R` - the type of the result of the function
  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 QuadFunction<A,B,C,D,R>

  Represents a function that accepts four arguments and produces a result. This is the four-arity specialization of `Function`.

  This is a functional interface whose functional method is `apply(Object, Object, Object, Object)`.

  See Also:
    `Function`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `R` | `apply(A a, B b, C c, D d)` Applies this function to the given arguments.

- - ### Method Detail

    - #### apply

          R apply(A a,
                  B b,
                  C c,
                  D d)

      Applies this function to the given arguments.
      Parameters:
        `a` - the first function argument
        `b` - the second function argument
        `c` - the third function argument
        `d` - the fourth function argument
      Returns:
        the function result

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