Struct jni::objects::JClass

#[repr(transparent)]
pub struct JClass<'local>(_);

Lifetime’d representation of a jclass. Just a JObject wrapped in a new class.

Implementations

impl<'local> JClass<'local>

pub unsafe fn from_raw(raw: jclass) -> Self

Creates a JClass that wraps the given raw jclass

Safety

raw may be a null pointer. If raw is not a null pointer, then:

• raw must be a valid raw JNI local reference.
• There must not be any other JObject representing the same local reference.
• The lifetime 'local must not outlive the local reference frame that the local reference was created in.

pub fn as_raw(&self) -> jclass

Returns the raw JNI pointer.

pub fn into_raw(self) -> jclass

Unwrap to the raw jni type.

Methods from Deref<Target = JObject<'local>>

pub fn as_raw(&self) -> jobject

Returns the raw JNI pointer.

Trait Implementations

impl<'local> AsRef<JClass<'local>> for JClass<'local>

fn as_ref(&self) -> &JClass<'local>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'local> AsRef<JObject<'local>> for JClass<'local>

fn as_ref(&self) -> &JObject<'local>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'local> Debug for JClass<'local>

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

Formats the value using the given formatter.

impl<'local> Default for JClass<'local>

fn default() -> Self

Returns the “default value” for a type.

impl<'local> Deref for JClass<'local>

type Target = JObject<'local>

The resulting type after dereferencing.

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

Dereferences the value.

impl<'local, T> Desc<'local, JClass<'local>> for Twhere T: Into<JNIString>,

type Output = AutoLocal<'local, JClass<'local>>

The type that this Desc returns.

fn lookup(self, env: &mut JNIEnv<'local>) -> Result<Self::Output>

Look up the concrete type from the JVM.

impl<'local, 'obj_ref> Desc<'local, JClass<'static>> for &'obj_ref GlobalRef

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

type Output = &'obj_ref JClass<'static>

The type that this Desc returns.

fn lookup(self, _: &mut JNIEnv<'local>) -> Result<Self::Output>

Look up the concrete type from the JVM.

impl<'local, 'obj_ref> From<&'obj_ref JObject<'local>> for &'obj_ref JClass<'local>

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

fn from(other: &'obj_ref JObject<'local>) -> Self

Converts to this type from the input type.

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

fn from(other: JClass<'_>) -> JObject<'_>

Converts to this type from the input type.

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

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

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

Converts to this type from the input type.