Struct JFieldID

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pub struct JFieldID<'a> { /* private fields */ }
Expand description

Wrapper around sys::jfieldid that adds a lifetime. This prevents it from outliving the context in which it was acquired and getting GC’d out from under us. It matches C’s representation of the raw pointer, so it can be used in any of the extern function argument positions that would take a jfieldid.

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impl<'a> JFieldID<'a>

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pub fn into_inner(self) -> *mut _jfieldID

Unwrap to the internal jni type.

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impl<'a> AdapterTransform<*mut _jfieldID> for JFieldID<'a>

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impl<'a> AutoDeallocateBuilder<'a, JFieldID<'a>> for MutAutoDeallocateObjectArrayBuilder<jfieldID>

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fn build(&self, jvmti: &'a JVMTIEnv<'a>) -> Vec<JFieldID<'a>>

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impl<'a> Clone for JFieldID<'a>

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fn clone(&self) -> JFieldID<'a>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, U, V> Desc<'a, JFieldID<'a>> for (JClass<'a>, U, V)
where U: Into<JNIString>, V: Into<JNIString>,

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fn lookup(self, jni: &JNIEnv<'a>) -> Result<JFieldID<'a>>

Different Look up the concrete type from the JVM.
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impl<'a> From<*mut _jfieldID> for JFieldID<'a>

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fn from(other: *mut _jfieldID) -> JFieldID<'a>

Converts to this type from the input type.
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impl<'a> Transform<'a, *mut _jfieldID> for JFieldID<'a>

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fn transform(self, _: &JNIEnv<'a>) -> Result<jfieldID>

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impl<'a> Copy for JFieldID<'a>

Auto Trait Implementations§

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impl<'a> Freeze for JFieldID<'a>

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impl<'a> RefUnwindSafe for JFieldID<'a>

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impl<'a> !Send for JFieldID<'a>

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impl<'a> !Sync for JFieldID<'a>

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impl<'a> Unpin for JFieldID<'a>

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impl<'a> UnwindSafe for JFieldID<'a>

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<'a, T> Desc<'a, T> for T

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fn lookup(self, _: &JNIEnv<'a>) -> Result<T, Error>

Different

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impl<'a, T> Desc<'a, T> for T

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fn lookup(self, _: &JNIEnv<'a>) -> Result<T, Error>

Look up the concrete type from the JVM.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.