Struct ejni::Class

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pub struct Class<'a> {
    pub class: JClass<'a>,
    /* private fields */
}

Expand description

Class describes java.lang.Class, with getters for often used classes from the Java standard library.

Fields

class: JClass<'a>

The underlying JClass

Implementations

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impl<'a> Class<'a>

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pub fn new(env: &'a JNIEnv<'a>, class: JClass<'a>) -> Self

Create a new Class from it’s raw compontents

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pub fn Byte(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Byte

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pub fn Boolean(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Boolean

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pub fn Float(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Float

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pub fn Integer(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Integer

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pub fn Double(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Double

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pub fn Short(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Short

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pub fn Character(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Character

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pub fn Long(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Long

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pub fn Object(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Object

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pub fn Class(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Class

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pub fn System(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.System

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pub fn CharSequence(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.CharSequence

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pub fn Math(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Math

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pub fn Record(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.Record

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pub fn String(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.String

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pub fn StringBuilder(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.StringBuilder

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pub fn BigDecimal(env: &'a JNIEnv<'a>) -> Result<Self>

java.math.BigDecimal

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pub fn BigInteger(env: &'a JNIEnv<'a>) -> Result<Self>

java.math.BigInteger

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pub fn Array(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.reflect.Array

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pub fn Field(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.reflect.Field

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pub fn Method(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.reflect.Method

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pub fn Constructor(env: &'a JNIEnv<'a>) -> Result<Self>

java.lang.reflect.Constructor

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pub fn Uuid(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Uuid

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pub fn Vector(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Vector

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pub fn MapEntry(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Map.Entry

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pub fn Set(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Set

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pub fn Scanner(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Scanner

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pub fn Queue(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Queue

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pub fn Random(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Random

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pub fn Properties(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Properties

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pub fn Optional(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Optional

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pub fn Objects(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Objects

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pub fn Map(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Map

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pub fn Locale(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Locale

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pub fn List(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.List

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pub fn LinkedList(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.LinkedList

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pub fn LinkedHashSet(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.LinkedHashSet

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pub fn LinkedHashMap(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.LinkedHashMap

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pub fn Iterator(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Iterator

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pub fn IdentityHashMap(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.IdentityHashMap

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pub fn Hashtable(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.HashTable

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pub fn HashSet(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.HashSet

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pub fn HashMap(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.HashMap

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pub fn EnumSet(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.EnumSet

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pub fn EnumMap(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.EnumMap

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pub fn Enumeration(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Enumeration

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pub fn Comparator(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Comparator

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pub fn Comparators(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Comparators

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pub fn Collection(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Collection

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pub fn Base64(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Base64

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pub fn Arrays(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Arrays

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pub fn ArrayList(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.ArrayList

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pub fn AtomicInteger(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicInteger

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pub fn AtomicLong(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicLong

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pub fn AtomicReference(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicReference

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pub fn AtomicIntegerArray(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicIntegerArray

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pub fn AtomicIntegerFieldUpdater(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicIntegerFieldUpdater

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pub fn Date(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.Data

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pub fn URI(env: &'a JNIEnv<'a>) -> Result<Self>

java.net.URI

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pub fn AtomicLongArray(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicLongArray

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pub fn AtomicLongFieldUpdater(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicLongFieldUpdater

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pub fn AtomicMarkableReference(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicMarkableReference

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pub fn AtomicReferenceArray(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicReferenceArray

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pub fn AtomicReferenceFieldUpdater(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.AtomicReferenceFieldUpdater

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pub fn DoubleAccumulator(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.DoubleAccumulator

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pub fn DoubleAdder(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.DoubleAdder

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pub fn LongAccumulator(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.LongAccumulator

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pub fn LongAdder(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.LongAdder

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pub fn Striped64(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.atomic.Striped64

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pub fn Future(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.Future

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pub fn TimeUnit(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.concurrent.TimeUnit

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pub fn Pattern(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.regex.Pattern

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pub fn Matcher(env: &'a JNIEnv<'a>) -> Result<Self>

java.util.regex.Matcher

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pub fn Duration(env: &'a JNIEnv<'a>) -> Result<Self>

java.time.Duration

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pub fn Instant(env: &'a JNIEnv<'a>) -> Result<Self>

java.time.Instant

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pub fn File(env: &'a JNIEnv<'a>) -> Result<Self>

java.io.File

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pub fn InputStream(env: &'a JNIEnv<'a>) -> Result<Self>

java.io.InputStream

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pub fn OutputStream(env: &'a JNIEnv<'a>) -> Result<Self>

java.io.OutputStream

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pub fn Unsafe(env: &'a JNIEnv<'a>) -> Result<Self>

sun.misc.Unsafe

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pub fn for_name<S: AsRef<str>>(env: &'a JNIEnv<'a>, name: S) -> Result<Self>

Find a class by it’s Java name. Can be in the format:

java/lang/String
java.lang.String

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pub fn array_type(&self, env: &'a JNIEnv<'a>) -> Result<Self>

Get the array type of a class. E.g java.lang.String results in java.lang.String[]

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pub fn is_compatible(&self, other: &Class<'a>) -> Result<bool>

Check if the current Class can be safely cast to the the other Class. E.g java.util.HashMap is compatible with java.util.Map

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pub fn get_superclass(&self) -> Result<Option<Class<'a>>>

Get the superclass of the current Class. Returns None if the current class has no superclass other than java.lang.Object, or if the current Class is an interface

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pub fn get_name(&self) -> Result<String>

Get the Class name. Invokes Class#getName()

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pub fn int(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive int

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pub fn long(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive long

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pub fn byte(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive byte

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pub fn boolean(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive boolean

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pub fn float(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive float

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pub fn double(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive double

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pub fn short(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive short

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pub fn char(env: &'a JNIEnv<'a>) -> Result<Self>

The Java primitive char

Trait Implementations

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impl<'a> Clone for Class<'a>

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

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<'a> Debug for Class<'a>

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

Formats the value using the given formatter. Read more

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impl<'a> Desc<'a, JClass<'a>> for Class<'a>

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

Look up the concrete type from the JVM.

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

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fn from(c: Class<'a>) -> Self

Converts to this type from the input type.

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impl<'a> Into<*mut _jobject> for Class<'a>

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fn into(self) -> *mut _jobject

Converts this type into the (usually inferred) input type.

Auto Trait Implementations

impl<'a> RefUnwindSafe for Class<'a>

impl<'a> !Send for Class<'a>

impl<'a> !Sync for Class<'a>

impl<'a> Unpin for Class<'a>

impl<'a> UnwindSafe for Class<'a>

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<'a, T> Desc<'a, T> for T

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fn lookup(self, &JNIEnv<'a>) -> Result<T, Error>

Look up the concrete type from the JVM.

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.