8004561: Additional functional interfaces, extension methods and name changes
Summary: Adds additional functional interfaces for primitives and "Bi" (two operand). Adds utility extension methods. Includes some name changes for existing functional interfaces per EG decisions.
Reviewed-by: briangoetz, darcy, chegar, dholmes
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package java.util.function;
/**
* Apply a function to the input arguments, yielding an appropriate result. This
* is the two-arity specialization of {@link Function}. A function may
* variously provide a mapping between types, object instances or keys and
* values or any other form of transformation upon the input.
*
* @param <T> the type of the first argument to the {@code apply} operation.
* @param <U> the type of the second argument to the {@code apply} operation.
* @param <R> the type of results returned by the {@code apply} operation.
*
* @see Function
* @since 1.8
*/
@FunctionalInterface
public interface BiFunction<T, U, R> {
/**
* Compute the result of applying the function to the input arguments
*
* @param t an input object
* @param u an input object
* @return the function result
*/
R apply(T t, U u);
}