Trait jni_glue::PrimitiveArray

pub trait PrimitiveArray<T> where
    Self: Sized + AsValidJObjectAndEnv,
    T: Clone + Default, {
    fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>;
    fn len(&self) -> usize;
    fn get_region(&self, start: usize, elements: &mut [T]);
    fn set_region(&self, start: usize, elements: &[T]);

    fn from<'env>(env: &'env Env, elements: &[T]) -> Local<'env, Self> { ... }
    fn get_region_as_vec(&self, range: impl RangeBounds<usize>) -> Vec<T> { ... }
    fn as_vec(&self) -> Vec<T> { ... }
}

A Java Array of some POD-like type such as bool, jbyte, jchar, jshort, jint, jlong, jfloat, or jdouble.

See also ObjectArray for arrays of reference types.

JNI Type	PrimitiveArray Implementation
bool[]	BooleanArray
jbyte[]	ByteArray
jchar[]	CharArray
jint[]	IntArray
jlong[]	LongArray
jfloat[]	FloatArray
jdouble[]	DoubleArray

Required methods

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

Uses env.New{Type}Array to create a new java array containing "size" elements.

fn len(&self) -> usize

Uses env.GetArrayLength to get the length of the java array.

fn get_region(&self, start: usize, elements: &mut [T])

Uses env.Get{Type}ArrayRegion to read the contents of the java array from [start .. start + elements.len())

fn set_region(&self, start: usize, elements: &[T])

Uses env.Set{Type}ArrayRegion to set the contents of the java array from [start .. start + elements.len())

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Provided methods

fn from<'env>(env: &'env Env, elements: &[T]) -> Local<'env, Self>

Uses env.New{Type}Array + Set{Type}ArrayRegion to create a new java array containing a copy of "elements".

fn get_region_as_vec(&self, range: impl RangeBounds<usize>) -> Vec<T>

Uses env.GetArrayLength + env.Get{Type}ArrayRegion to read the contents of the java array from range into a new Vec.

fn as_vec(&self) -> Vec<T>

Uses env.GetArrayLength + env.Get{Type}ArrayRegion to read the contents of the entire java array into a new Vec.

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Implementors

impl PrimitiveArray<bool> for BooleanArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[bool]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [bool])

fn set_region(&self, start: usize, elements: &[bool])

impl PrimitiveArray<f32> for FloatArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jfloat]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jfloat])

fn set_region(&self, start: usize, elements: &[jfloat])

impl PrimitiveArray<f64> for DoubleArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jdouble]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jdouble])

fn set_region(&self, start: usize, elements: &[jdouble])

impl PrimitiveArray<i16> for ShortArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jshort]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jshort])

fn set_region(&self, start: usize, elements: &[jshort])

impl PrimitiveArray<i32> for IntArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jint]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jint])

fn set_region(&self, start: usize, elements: &[jint])

impl PrimitiveArray<i64> for LongArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jlong]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jlong])

fn set_region(&self, start: usize, elements: &[jlong])

impl PrimitiveArray<i8> for ByteArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jbyte]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jbyte])

fn set_region(&self, start: usize, elements: &[jbyte])

impl PrimitiveArray<jchar> for CharArray

fn new<'env>(env: &'env Env, size: usize) -> Local<'env, Self>

fn from<'env>(env: &'env Env, elements: &[jchar]) -> Local<'env, Self>

fn len(&self) -> usize

fn get_region(&self, start: usize, elements: &mut [jchar])

fn set_region(&self, start: usize, elements: &[jchar])

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