Package com.landawn.abacus.util

Class Fn.FnD

java.lang.Object

com.landawn.abacus.util.Fn.FnD

Enclosing class:

Fn

public static final class Fn.FnD
extends Object

Utility class for DoublePredicate/Function/Consumer.

Author:

haiyangl

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Fn.FnD.DoubleBinaryOperators

Method Summary

Modifier and Type	Method	Description
static DoubleBiFunction<MergeResult>	alternated()	Deprecated.
static Function<double[],Double>	average()
static DoubleConsumer	c(DoubleConsumer c)
static DoubleBiPredicate	equal()
static <R> DoubleFunction<R>	f(DoubleFunction<R> f)
static DoubleBiPredicate	greaterEqual()
static DoubleBiPredicate	greaterThan()
static Function<double[],Integer>	len()
static DoubleBiPredicate	lessEqual()
static DoubleBiPredicate	lessThan()
static DoubleBiPredicate	notEqual()
static DoublePredicate	notNegative()
static DoublePredicate	p(DoublePredicate p)
static DoublePredicate	positve()
static Function<double[],Double>	sum()
static ToDoubleFunction<Double>	unbox()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

positve

public static DoublePredicate positve()

Returns:

notNegative

public static DoublePredicate notNegative()

Returns:

equal

public static DoubleBiPredicate equal()

Returns:

notEqual

public static DoubleBiPredicate notEqual()

Returns:

greaterThan

public static DoubleBiPredicate greaterThan()

Returns:

greaterEqual

public static DoubleBiPredicate greaterEqual()

Returns:

lessThan

public static DoubleBiPredicate lessThan()

Returns:

lessEqual

public static DoubleBiPredicate lessEqual()

Returns:

unbox

public static ToDoubleFunction<Double> unbox()

Returns:

p

public static DoublePredicate p(DoublePredicate p)

Parameters:

p -

Returns:

f

public static <R> DoubleFunction<R> f(DoubleFunction<R> f)

Type Parameters:

R -

Parameters:

f -

Returns:

c

public static DoubleConsumer c(DoubleConsumer c)

Parameters:

c -

Returns:

len

public static Function<double[],Integer> len()

Returns:

sum

public static Function<double[],Double> sum()

Returns:

average

public static Function<double[],Double> average()

Returns:

alternated

@Deprecated
@Beta
@SequentialOnly
@Stateful
public static DoubleBiFunction<MergeResult> alternated()

Deprecated.

Returns a stateful DoubleBiFunction. Don't save or cache for reuse or use it in parallel stream.

Returns: