Struct jni::objects::JObject

#[repr(transparent)]
pub struct JObject<'a> { /* fields omitted */ }

Wrapper around sys::jobject 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 jobject.

Most other types in the objects module deref to this, as they do in the C representation.

Methods

impl<'a> JObject<'a>

pub fn into_inner(self) -> jobject

Unwrap to the internal jni type.

pub fn null() -> JObject<'a>

Creates a new null object

Trait Implementations

impl<'a, 'b> Desc<'a, JClass<'a>> for JObject<'b>

fn lookup(self, env: &JNIEnv<'a>) -> Result<JClass<'a>>

Look up the concrete type from the JVM.

impl<'a> From<JObject<'a>> for JValue<'a>

fn from(other: JObject<'a>) -> Self

Performs the conversion.

impl<'a> From<*mut _jobject> for JObject<'a>

fn from(other: jobject) -> Self

Performs the conversion.

impl<'a> From<JThrowable<'a>> for JObject<'a>

fn from(other: JThrowable) -> JObject

Performs the conversion.

impl<'a> From<JObject<'a>> for JThrowable<'a>

fn from(other: JObject) -> JThrowable

Performs the conversion.

impl<'a> From<JClass<'a>> for JObject<'a>

fn from(other: JClass) -> JObject

Performs the conversion.

impl<'a> From<JObject<'a>> for JClass<'a>

This conversion assumes that the JObject is a pointer to a class object.

fn from(other: JObject) -> JClass

Performs the conversion.

impl<'a> From<JString<'a>> for JObject<'a>

fn from(other: JString) -> JObject

Performs the conversion.

impl<'a> From<JObject<'a>> for JString<'a>

fn from(other: JObject) -> JString

Performs the conversion.

impl<'a: 'b, 'b> From<JMap<'a, 'b>> for JObject<'a>

fn from(other: JMap<'a, 'b>) -> JObject<'a>

Performs the conversion.

impl<'a: 'b, 'b> From<JList<'a, 'b>> for JObject<'a>

fn from(other: JList<'a, 'b>) -> JObject<'a>

Performs the conversion.

impl<'a> From<JByteBuffer<'a>> for JObject<'a>

fn from(other: JByteBuffer) -> JObject

Performs the conversion.

impl<'a> From<JObject<'a>> for JByteBuffer<'a>

fn from(other: JObject) -> JByteBuffer

Performs the conversion.

impl<'a> From<&'a GlobalRef> for JObject<'a>

fn from(other: &'a GlobalRef) -> JObject<'a>

Performs the conversion.

impl<'a> Clone for JObject<'a>

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

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for JObject<'a>

impl<'a> Debug for JObject<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a> Deref for JObject<'a>

type Target = jobject

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.