Package one.xingyi.fp

Interface IPartialFunction<From,To>

All Superinterfaces:

Function<From,To>

public interface IPartialFunction<From,To>
extends Function<From,To>

Method Summary

Modifier and Type	Method	Description
static <From, To> IPartialFunction<From,To>	always(Function<From,To> fn)
static <From, To> Function<List<Boolean>,List<To>>	applyListBooleans(List<IPartialFunction<From,To>> pfns, From from)
static <From, To> Function<List<Boolean>,List<To>>	applyListBooleans(List<IPartialFunction<From,To>> pfns, From from, boolean throwExceptionIfNotDefined)
static <From, To> To	applyOr(IPartialFunction<From,To> pfn, Supplier<To> defValue, From from)
static <From, To> To	applyOrError(IPartialFunction<From,To> pfn, From from)
static <From, To> IPartialFunction<From,To>	chainToFn(Function<From,To> defValue, Collection<IPartialFunction<From,To>> fns)
static <From, To> IPartialFunction<From,To>	chainToPf(Collection<IPartialFunction<From,To>> pfs)
static <From, Child, To> one.xingyi.fp.PartialFunction<From,To>	childListDefined(Function<From,List<Child>> childFn, Function<List<Child>,To> fn)
static <From, Child, To> one.xingyi.fp.PartialFunction<From,To>	childNotNull(Function<From,Child> childFn, Function<Child,To> fn)
static <From, To> void	forEachPermutation(List<IPartialFunction<From,To>> pfns, From from, BiConsumer<List<Boolean>,List<To>> consumer)
static <From, To> void	forEachPermutation(List<IPartialFunction<From,To>> pfns, From from, BiConsumer<List<Boolean>,List<To>> consumer, boolean throwExceptionIfNotDefined)
static <From, Child, To> one.xingyi.fp.PartialFunction<From,To>	fromChild(Function<From,Child> childFn, Predicate<Child> isDefinedAt, Function<Child,To> fn)
static <From, To> IPartialFunction<From,To>	ifThenElse(Predicate<From> condition, Function<From,To> trueFn, Function<From,To> falseFn)
boolean	isDefinedAt(From from)
static <From, To> Predicate<List<Boolean>>	isOkToUseBooleans(List<IPartialFunction<From,To>> pfns)
static <From, To> IPartialFunction<List<From>,To>	listDefined(Function<List<From>,To> fn)
static <From, To> Function<From,List<To>>	mapFn(Collection<IPartialFunction<From,To>> fns)
static <From, To, Result> Function<From,Result>	mapReduceFn(Collection<IPartialFunction<From,To>> fns, Function<List<To>,Result> reduceFn)
static <From, To> IPartialFunction<From,To>	notNull(Function<From,To> fn)
static <From, To> IPartialFunction<From,To>	of(Predicate<From> isDefinedAt, Function<From,To> fn)
default IPartialFunction<From,To>	orElse(IPartialFunction<From,To> other)
static <From, To> Stream<List<To>>	permutations(List<IPartialFunction<From,To>> pfns, From from)

Methods inherited from interface java.util.function.Function

andThen, apply, compose

Method Details

ifThenElse

static <From,
To> IPartialFunction<From,To> ifThenElse(Predicate<From> condition,
 Function<From,To> trueFn,
 Function<From,To> falseFn)

isDefinedAt

boolean isDefinedAt(From from)

orElse

default IPartialFunction<From,To> orElse(IPartialFunction<From,To> other)

always

static <From,
To> IPartialFunction<From,To> always(Function<From,To> fn)

applyOrError

static <From,
To> To applyOrError(IPartialFunction<From,To> pfn,
 From from)

applyOr

static <From,
To> To applyOr(IPartialFunction<From,To> pfn,
 Supplier<To> defValue,
 From from)

of

static <From,
To> IPartialFunction<From,To> of(Predicate<From> isDefinedAt,
 Function<From,To> fn)

notNull

static <From,
To> IPartialFunction<From,To> notNull(Function<From,To> fn)

listDefined

static <From,
To> IPartialFunction<List<From>,To> listDefined(Function<List<From>,To> fn)

fromChild

static <From,
Child,
To>
one.xingyi.fp.PartialFunction<From,To> fromChild(Function<From,Child> childFn,
 Predicate<Child> isDefinedAt,
 Function<Child,To> fn)

childNotNull

static <From,
Child,
To>
one.xingyi.fp.PartialFunction<From,To> childNotNull(Function<From,Child> childFn,
 Function<Child,To> fn)

childListDefined

static <From,
Child,
To>
one.xingyi.fp.PartialFunction<From,To> childListDefined(Function<From,List<Child>> childFn,
 Function<List<Child>,To> fn)

mapFn

static <From,
To> Function<From,List<To>> mapFn(Collection<IPartialFunction<From,To>> fns)

mapReduceFn

static <From,
To,
Result> Function<From,Result> mapReduceFn(Collection<IPartialFunction<From,To>> fns,
 Function<List<To>,Result> reduceFn)

chainToFn

static <From,
To> IPartialFunction<From,To> chainToFn(Function<From,To> defValue,
 Collection<IPartialFunction<From,To>> fns)

chainToPf

static <From,
To> IPartialFunction<From,To> chainToPf(Collection<IPartialFunction<From,To>> pfs)

isOkToUseBooleans

static <From,
To> Predicate<List<Boolean>> isOkToUseBooleans(List<IPartialFunction<From,To>> pfns)

applyListBooleans

static <From,
To> Function<List<Boolean>,List<To>> applyListBooleans(List<IPartialFunction<From,To>> pfns,
 From from)

applyListBooleans

static <From,
To> Function<List<Boolean>,List<To>> applyListBooleans(List<IPartialFunction<From,To>> pfns,
 From from,
 boolean throwExceptionIfNotDefined)

permutations

static <From,
To> Stream<List<To>> permutations(List<IPartialFunction<From,To>> pfns,
 From from)

forEachPermutation

static <From,
To> void forEachPermutation(List<IPartialFunction<From,To>> pfns,
 From from,
 BiConsumer<List<Boolean>,List<To>> consumer)

forEachPermutation

static <From,
To> void forEachPermutation(List<IPartialFunction<From,To>> pfns,
 From from,
 BiConsumer<List<Boolean>,List<To>> consumer,
 boolean throwExceptionIfNotDefined)