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• Function4.java

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com.github.akurilov.commons.func.Function4 Maven / Gradle / Ivy

package com.github.akurilov.commons.func;

import java.util.function.Function;

@FunctionalInterface
public interface Function4 {

	Z apply(final A a, final B b, final C c, final D d);

	static  Function partial(
		final Function4 f, final A a, final B b, final C c
	) {
		return (d) -> f.apply(a, b, c, d);
	}

	static  Function2 partial(
		final Function4 f, final A a, final B b
	) {
		return (c, d) -> f.apply(a, b, c, d);
	}

	static  Function3 partial(
		final Function4 f, final A a
	) {
		return (b, c, d) -> f.apply(a, b, c, d);
	}
}