ThrowableFunction.java

package com.annimon.stream.function;

/**
 * Represents a function which produces result from input arguments and can throw an exception.
 *
 * @param <I> the type of the input of the function
 * @param <R> the type of the result of the function
 * @param <E> the type of the exception
 * @see Function
 */
@FunctionalInterface
public interface ThrowableFunction<I, R, E extends Throwable> {

    /**
     * Applies this function to the given argument.
     *
     * @param i  an argument
     * @return the function result
     * @throws E an exception
     */
    R apply(I i) throws E;
}