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package org.apache.juneau.utils;

import java.util.function.*;

/**
 * Functional interface for consumers of 2-part arguments.
 *
 * @param  Argument 1.
 * @param  Argument 2.
 */
@FunctionalInterface
public interface Consumer2 {

	/**
	 * Performs this operation on the given arguments.
	 *
	 * @param a Argument 1.
	 * @param b Argument 2.
	 */
	void apply(A a, B b);

	/**
	 * Returns a composed {@link Consumer} that performs, in sequence, this operation followed by the after operation.
	 *
	 * @param  The return type.
	 * @param after The operation to perform after this operation.
	 * @return A composed {@link Consumer} that performs in sequence this operation followed by the after operation.
	 */
	default  Consumer2 andThen(Consumer2 after) {
		return (A a, B b) -> {
			apply(a, b);
			after.apply(a, b);
		};
	}
}