[−]Struct jni_android_sys::java::util::Optional

#[repr(transparent)]
pub struct Optional(_);

public final class Optional

Required feature: "java-util-Optional"

Methods

impl Optional

pub fn empty<'env>(
    __jni_env: &'env Env
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

empty

Required features: "java-util-Optional"

pub fn of<'env>(
    __jni_env: &'env Env,
    arg0: impl Into<Option<&'env Object>>
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

of

Required features: "java-lang-Object", "java-util-Optional"

pub fn ofNullable<'env>(
    __jni_env: &'env Env,
    arg0: impl Into<Option<&'env Object>>
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

ofNullable

Required features: "java-lang-Object", "java-util-Optional"

pub fn get<'env>(
    &'env self
) -> Result<Option<Local<'env, Object>>, Local<'env, Throwable>>[src]

get

Required features: "java-lang-Object"

pub fn isPresent<'env>(&'env self) -> Result<bool, Local<'env, Throwable>>[src]

isPresent

pub fn ifPresent<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Consumer>>
) -> Result<(), Local<'env, Throwable>>[src]

ifPresent

Required features: "java-util-function-Consumer"

pub fn filter<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Predicate>>
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

filter

Required features: "java-util-Optional", "java-util-function-Predicate"

pub fn map<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Function>>
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

map

Required features: "java-util-Optional", "java-util-function-Function"

pub fn flatMap<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Function>>
) -> Result<Option<Local<'env, Optional>>, Local<'env, Throwable>>[src]

flatMap

Required features: "java-util-Optional", "java-util-function-Function"

pub fn orElse<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Object>>
) -> Result<Option<Local<'env, Object>>, Local<'env, Throwable>>[src]

orElse

Required features: "java-lang-Object"

pub fn orElseGet<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Supplier>>
) -> Result<Option<Local<'env, Object>>, Local<'env, Throwable>>[src]

orElseGet

Required features: "java-lang-Object", "java-util-function-Supplier"

pub fn orElseThrow<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Supplier>>
) -> Result<Option<Local<'env, Object>>, Local<'env, Throwable>>[src]

orElseThrow

Required features: "java-lang-Object", "java-util-function-Supplier"

pub fn equals<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Object>>
) -> Result<bool, Local<'env, Throwable>>[src]

equals

Required features: "java-lang-Object"

pub fn hashCode<'env>(&'env self) -> Result<i32, Local<'env, Throwable>>[src]

hashCode

pub fn toString<'env>(
    &'env self
) -> Result<Option<Local<'env, String>>, Local<'env, Throwable>>[src]

toString

Required features: "java-lang-String"

Methods from Deref<Target = Object>

pub fn getClass<'env>(
    &'env self
) -> Result<Option<Local<'env, Class>>, Local<'env, Throwable>>[src]

getClass

Required features: "java-lang-Class"

pub fn hashCode<'env>(&'env self) -> Result<i32, Local<'env, Throwable>>[src]

hashCode

pub fn equals<'env>(
    &'env self,
    arg0: impl Into<Option<&'env Object>>
) -> Result<bool, Local<'env, Throwable>>[src]

equals

Required features: "java-lang-Object"

pub fn toString<'env>(
    &'env self
) -> Result<Option<Local<'env, String>>, Local<'env, Throwable>>[src]

toString

Required features: "java-lang-String"

pub fn notify<'env>(&'env self) -> Result<(), Local<'env, Throwable>>[src]

notify

pub fn notifyAll<'env>(&'env self) -> Result<(), Local<'env, Throwable>>[src]

notifyAll

pub fn wait_long<'env>(
    &'env self,
    arg0: i64
) -> Result<(), Local<'env, Throwable>>[src]

wait

pub fn wait_long_int<'env>(
    &'env self,
    arg0: i64,
    arg1: i32
) -> Result<(), Local<'env, Throwable>>[src]

wait

pub fn wait<'env>(&'env self) -> Result<(), Local<'env, Throwable>>[src]

wait

Trait Implementations

impl AsJValue for Optional

impl AsValidJObjectAndEnv for Optional

impl Deref for Optional

type Target = Object

The resulting type after dereferencing.

impl JniType for Optional

Auto Trait Implementations

impl RefUnwindSafe for Optional

impl !Send for Optional

impl !Sync for Optional

impl Unpin for Optional

impl UnwindSafe for Optional

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.