Example usage for java.util.function BinaryOperator apply

Introduction

In this page you can find the example usage for java.util.function BinaryOperator apply.

Prototype

R apply(T t, U u);

Source Link

Document

Applies this function to the given arguments.

Usage

From source file:enumj.Enumerator.java

/**
 * Performs a reduction on enumerated elements using an identity element
 * and an associative accumulation function and returns the reduced value.
 *
 * @param identity starting point for the reduction.
 * @param accumulator associative {@link BinaryOperator} combining
 * two enumerated elements.//from   w  w w . ja va 2  s.  co m
 * @return the reduced value.
 * @exception IllegalArgumentException <code>accumulator</code> is null.
 */
public default E reduce(E identity, BinaryOperator<E> accumulator) {
    Checks.ensureNotNull(accumulator, Messages.NULL_ENUMERATOR_ACCUMULATOR);
    E result = identity;
    while (hasNext()) {
        result = accumulator.apply(result, next());
    }
    return result;
}

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From source file:org.briljantframework.array.AbstractArray.java

@Override
public T reduce(T initial, BinaryOperator<T> accumulator) {
    for (int i = 0; i < size(); i++) {
        initial = accumulator.apply(initial, get(i));
    }// ww w .  j  a  v a  2 s . c  o  m
    return initial;
}

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From source file:org.briljantframework.array.AbstractComplexArray.java

@Override
public ComplexArray combineAssign(ComplexArray array, BinaryOperator<Complex> combine) {
    array = ShapeUtils.broadcastIfSensible(this, array);
    Check.dimension(this, array);
    for (int i = 0; i < size(); i++) {
        set(i, combine.apply(get(i), array.get(i)));
    }/*from  ww  w . j  a va 2  s . c o  m*/
    return this;
}

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From source file:org.briljantframework.array.AbstractComplexArray.java

@Override
public Complex reduce(Complex identity, BinaryOperator<Complex> reduce, UnaryOperator<Complex> map) {
    for (int i = 0; i < size(); i++) {
        identity = reduce.apply(map.apply(get(i)), identity);
    }//from   w ww  . j a v a2 s  .c  o  m
    return identity;
}

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