Enum JValue

pub enum JValue<'a> {
    Object(JObject<'a>),
    Byte(i8),
    Char(u16),
    Short(i16),
    Int(i32),
    Long(i64),
    Bool(u8),
    Float(f32),
    Double(f64),
    Void,
}

Rusty version of the JNI C jvalue enum. Used in Java method call arguments and returns.

Variants

Object(JObject<'a>)

Byte(i8)

Char(u16)

Short(i16)

Int(i32)

Long(i64)

Bool(u8)

Float(f32)

Double(f64)

Void

Implementations

impl<'a> JValue<'a>

pub fn to_jni(self) -> jvalue

Convert the enum to its jni-compatible equivalent.

pub fn type_name(&self) -> &'static str

Get the type name for the enum variant.

pub fn primitive_type(&self) -> Option<Primitive>

Get the primitive type for the enum variant. If it’s not a primitive (i.e. an Object), returns None.

pub fn l(self) -> Result<JObject<'a>, Error>

Try to unwrap to an Object.

pub fn z(self) -> Result<bool, Error>

Try to unwrap to a boolean.

pub fn b(self) -> Result<i8, Error>

Try to unwrap to a byte.

pub fn c(self) -> Result<u16, Error>

Try to unwrap to a char.

pub fn d(self) -> Result<f64, Error>

Try to unwrap to a double.

pub fn f(self) -> Result<f32, Error>

Try to unwrap to a float.

pub fn i(self) -> Result<i32, Error>

Try to unwrap to an int.

pub fn j(self) -> Result<i64, Error>

Try to unwrap to a long.

pub fn s(self) -> Result<i16, Error>

Try to unwrap to a short.

pub fn v(self) -> Result<(), Error>

Try to unwrap to a void.

Trait Implementations

impl<'a> Clone for JValue<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for JValue<'a>

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

Formats the value using the given formatter.

impl<'a> From<()> for JValue<'a>

fn from(_: ()) -> JValue<'a>

Converts to this type from the input type.

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

fn from(other: JValue<'_>) -> jvalue

Converts to this type from the input type.

impl<'a, T> From<T> for JValue<'a>

where T: Into<JObject<'a>>,

fn from(other: T) -> JValue<'a>

Converts to this type from the input type.

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

fn from(other: bool) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<f32> for JValue<'a>

fn from(other: f32) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<f64> for JValue<'a>

fn from(other: f64) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<i16> for JValue<'a>

fn from(other: i16) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<i32> for JValue<'a>

fn from(other: i32) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<i64> for JValue<'a>

fn from(other: i64) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<i8> for JValue<'a>

fn from(other: i8) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<u16> for JValue<'a>

fn from(other: u16) -> JValue<'a>

Converts to this type from the input type.

impl<'a> From<u8> for JValue<'a>

fn from(other: u8) -> JValue<'a>

Converts to this type from the input type.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<JObject<'a>, Error>

Performs the conversion.

impl<'a> Copy for JValue<'a>