Example usage for org.apache.commons.functor.core.composite Composite function

Introduction

In this page you can find the example usage for org.apache.commons.functor.core.composite Composite function.

Prototype

public static <A, X, T> CompositeUnaryFunction<A, T> function(UnaryFunction<? super X, ? extends T> f,
        UnaryFunction<? super A, ? extends X> g) 

Source Link

Document

Create a composite UnaryFunction.

Usage

From source file:org.apache.commons.functor.example.kata.four.DataMunger.java

/**
 * A Function that returns the absolute value of the difference
 * between the Integers stored in the <i>col1</i> and <i>col2</i>th
 * whitespace delimited columns of the input line (a String).
 *///from w  w w.  ja v a2s  .  c  o  m
private static Function<String, Integer> absSpread(final int col1, final int col2) {
    return Composite.function(Abs.instance(),
            new BinaryFunctionFunction<String, Number>(Composite.function(Subtract.instance(),
                    Composite.function(ToInteger.instance(), NthColumn.instance(col1)),
                    Composite.function(ToInteger.instance(), NthColumn.instance(col2)))));
}

---

From source file:org.apache.commons.functor.example.kata.one.ToMoney.java

public static <X> Function<X, Money> from(Function<? super X, ? extends Number> fn) {
    return Composite.function(INSTANCE, fn);
}

---