Enum jni::objects::JValue

pub enum JValue<'a> {
    Object(JObject<'a>),
    Byte(jbyte),
    Char(jchar),
    Short(jshort),
    Int(jint),
    Long(jlong),
    Bool(jboolean),
    Float(jfloat),
    Double(jdouble),
    Void,
}

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

Variants

Object(JObject<'a>)

Byte(jbyte)

Char(jchar)

Short(jshort)

Int(jint)

Long(jlong)

Bool(jboolean)

Float(jfloat)

Double(jdouble)

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>>

Try to unwrap to an Object.

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

Try to unwrap to a boolean.

pub fn b(self) -> Result<jbyte>

Try to unwrap to a byte.

pub fn c(self) -> Result<jchar>

Try to unwrap to a char.

pub fn d(self) -> Result<jdouble>

Try to unwrap to a double.

pub fn f(self) -> Result<jfloat>

Try to unwrap to a float.

pub fn i(self) -> Result<jint>

Try to unwrap to an int.

pub fn j(self) -> Result<jlong>

Try to unwrap to a long.

pub fn s(self) -> Result<jshort>

Try to unwrap to a short.

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

Try to unwrap to a void.

Trait Implementations

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

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

Returns a copy 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

Formats the value using the given formatter.

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

fn from(_: ()) -> Self

Performs the conversion.

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

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

Performs the conversion.

impl<'a, T: Into<JObject<'a>>> From<T> for JValue<'a>

fn from(other: T) -> Self

Performs the conversion.

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

fn from(other: bool) -> Self

Performs the conversion.

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

fn from(other: jfloat) -> Self

Performs the conversion.

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

fn from(other: jdouble) -> Self

Performs the conversion.

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

fn from(other: jshort) -> Self

Performs the conversion.

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

fn from(other: jint) -> Self

Performs the conversion.

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

fn from(other: jlong) -> Self

Performs the conversion.

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

fn from(other: jbyte) -> Self

Performs the conversion.

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

fn from(other: jchar) -> Self

Performs the conversion.

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

fn from(other: jboolean) -> Self

Performs the conversion.

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<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: JValue<'a>) -> Result<Self>

Performs the conversion.

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