Uses of Class
org.osgl.Lang.Option

Packages that use Lang.Option

Package	Description
org.osgl
org.osgl.util

Uses of Lang.Option in org.osgl

Subclasses of Lang.Option in org.osgl

Modifier and Type	Class and Description
static class	Lang.None<T>
static class	Lang.Some<T>

Methods in org.osgl that return Lang.Option

Modifier and Type	Method and Description
static <T> Lang.Option<T>	Lang.cast(Object o, Class<T> c) Cast an object to a type.
Lang.Option<T>	Lang.Option.filter(Lang.Function<? super T,Boolean> predicate) If a value is present, and the value matches the given predicate, return an Option describing the value, otherwise return Lang.NONE.
Lang.Option<T>	Lang.Var.findFirst(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	Lang.Var.findLast(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	Lang.Var.findOne(Lang.Function<? super T,Boolean> predicate)
<B> Lang.Option<B>	Lang.Option.flatMap(Lang.Function<? super T,Lang.Option<B>> mapper) If a value is present, apply the provided Option-bearing mapping function to it, return that result, otherwise return Lang.NONE.
<B> Lang.Option<B>	Lang.Option.map(Lang.Function<? super T,? extends B> mapper) If a value is present, apply the provided mapping function to it, and if the result is non-null, return an Option describing the result.
static <T> Lang.Option<T>	Lang.Option.of(T value) Returns an Option with the specified present value if it is not null or Lang.NONE otherwise.
Lang.Option<T>	Lang.Var.reduce(Lang.Func2<T,T,T> accumulator)
Lang.Option<T>	Lang.Var.reduceLeft(Lang.Func2<T,T,T> accumulator)
Lang.Option<T>	Lang.Var.reduceRight(Lang.Func2<T,T,T> accumulator)
static <T> Lang.Option<Class<T>>	Lang.safeClassForName(String className)
static <T> Lang.Option<Class<T>>	Lang.safeClassForName(String className, ClassLoader classLoader)
static <T> Lang.Option<T>	Lang.safeNewInstance(String className)
static <T> Lang.Option<T>	Lang.some(T a)
Lang.Option<T>	Lang.Var.toOption()

Methods in org.osgl that return types with arguments of type Lang.Option

Modifier and Type	Method and Description
<R> Lang.F1<T,Lang.Option<R>>	Lang.Predicate.elseThen(Lang.Function<? super T,R> func)
Lang.F0<Lang.Option<T>>	Lang.Option.f.filter(Lang.Function<? super T,Boolean> predicate) Returns a function that when applied, run Option#filter(Function) on this Option
<B> Lang.F0<Lang.Option<B>>	Lang.Option.f.flatMap(Lang.Function<? super T,Lang.Option<B>> mapper) Returns a function that when applied, run Option#flatMap(Function) on this Option
<R> Lang.F1<T,Lang.Option<R>>	Lang.Predicate.ifThen(Lang.Function<? super T,R> func)
Lang.F0<Lang.Option<R>>	Lang.F0.lift() Turns this partial function into a plain function returning an Option result.
Lang.F1<P1,Lang.Option<R>>	Lang.F1.lift() Turns this partial function into a plain function returning an Option result.
Lang.F2<P1,P2,Lang.Option<R>>	Lang.F2.lift() Turns this partial function into a plain function returning an Option result.
Lang.F3<P1,P2,P3,Lang.Option<R>>	Lang.F3.lift() Turns this partial function into a plain function returning an Option result.
Lang.F4<P1,P2,P3,P4,Lang.Option<R>>	Lang.F4.lift() Turns this partial function into a plain function returning an Option result.
Lang.F5<P1,P2,P3,P4,P5,Lang.Option<R>>	Lang.F5.lift() Turns this partial function into a plain function returning an Option result.
<B> Lang.F0<Lang.Option<B>>	Lang.Option.f.map(Lang.Function<? super T,? extends B> mapper) Returns a function that when applied, run Option#map(Function) on this Option

Method parameters in org.osgl with type arguments of type Lang.Option

Modifier and Type	Method and Description
<B> Lang.Option<B>	Lang.Option.flatMap(Lang.Function<? super T,Lang.Option<B>> mapper) If a value is present, apply the provided Option-bearing mapping function to it, return that result, otherwise return Lang.NONE.
<B> Lang.F0<Lang.Option<B>>	Lang.Option.f.flatMap(Lang.Function<? super T,Lang.Option<B>> mapper) Returns a function that when applied, run Option#flatMap(Function) on this Option

Uses of Lang.Option in org.osgl.util

Methods in org.osgl.util that return Lang.Option

Modifier and Type	Method and Description
Lang.Option<T>	C.Sequence.findFirst(Lang.Function<? super T,Boolean> predicate) Apply the predicate specified to the element of this sequence from head to tail.
Lang.Option<T>	ListBase.findFirst(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	SequenceBase.findFirst(Lang.Function<? super T,Boolean> predicate) Delegate to TraversableBase.findOne(org.osgl.Lang.Function)
Lang.Option<ELEMENT>	C.Range.findLast(Lang.Function<? super ELEMENT,Boolean> predicate)
Lang.Option<ELEMENT>	LazyRange.findLast(Lang.Function<? super ELEMENT,Boolean> predicate)
Lang.Option<T>	C.ReversibleSequence.findLast(Lang.Function<? super T,Boolean> predicate) Apply the predicate specified to the element of this sequence from tail to head.
Lang.Option<T>	ListBase.findLast(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	C.Traversable.findOne(Lang.Function<? super T,Boolean> predicate) Returns an element that matches the predicate specified.
Lang.Option<T>	ListBase.findOne(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	TraversableBase.findOne(Lang.Function<? super T,Boolean> predicate) Iterate the traversal to check if any element applied to the predicate the iteration process stop when the element is found and return an option describing the element.
Lang.Option<T>	SetBase.findOne(Lang.Function<? super T,Boolean> predicate)
Lang.Option<T>	C.Traversable.reduce(Lang.Func2<T,T,T> accumulator) Performs a reduction on the elements in this traversable, using provided accumulating function.
Lang.Option<T>	C.Sequence.reduce(Lang.Func2<T,T,T> accumulator) Performs a reduction on the elements in this traversable, using provided accumulating function.
Lang.Option<T>	ListBase.reduce(Lang.Func2<T,T,T> accumulator)
Lang.Option<T>	TraversableBase.reduce(Lang.Func2<T,T,T> accumulator) Iterate through the traversal to apply the accumulator to the result of previous application and the element being iterated.
Lang.Option<T>	SetBase.reduce(Lang.Func2<T,T,T> accumulator)
Lang.Option<T>	C.Sequence.reduceLeft(Lang.Func2<T,T,T> accumulator) Run reduction from head to tail.
Lang.Option<T>	ListBase.reduceLeft(Lang.Func2<T,T,T> accumulator)
Lang.Option<T>	SequenceBase.reduceLeft(Lang.Func2<T,T,T> accumulator) Delegate to TraversableBase.reduce(org.osgl.Lang.Func2)
Lang.Option<ELEMENT>	C.Range.reduceRight(Lang.Func2<ELEMENT,ELEMENT,ELEMENT> accumulator)
Lang.Option<ELEMENT>	LazyRange.reduceRight(Lang.Func2<ELEMENT,ELEMENT,ELEMENT> accumulator)
Lang.Option<T>	C.ReversibleSequence.reduceRight(Lang.Func2<T,T,T> accumulator) Run reduction from tail to head.
Lang.Option<T>	ListBase.reduceRight(Lang.Func2<T,T,T> accumulator)