Struct rucaja::Jvm

pub struct Jvm { /* fields omitted */ }

Holds a reference to the embedded JVM.

Methods

impl Jvm

fn jvm(&self) -> *mut JavaVM

unsafe fn new(jvm_option_strings: &[&str]) -> Jvm

Tries to instantiate the embedded JVM.

The JNI does not allow the creation of multiple JVMs in the same process (it seems, not even sequentially). An attempt will result in a panic.

Arguments

• jvm_option_strings - a list of JVM option strings.

Example

use rucaja::Jvm;
unsafe {
  Jvm::new(&["-Xcheck:jni"]);
}

unsafe fn call_constructor(
    &self,
    jvm_class: &JvmClass,
    jvm_constructor_method: &JvmMethod,
    args: *const jvalue
) -> jobject

Tries to call the given JVM object constructor in the given JVM class. Currently panics if a JVM exception occurs.

unsafe fn call_static_boolean_method(
    &self,
    jvm_class: &JvmClass,
    jvm_method: &JvmMethod,
    args: *const jvalue
) -> jboolean

Tries to call the given JVM static boolean method in the given JVM class. Currently panics if a JVM exception occurs.

unsafe fn call_static_object_method(
    &self,
    jvm_class: &JvmClass,
    jvm_method: &JvmMethod,
    args: *const jvalue
) -> Option<JvmObject>

unsafe fn call_static_void_method(
    &self,
    jvm_class: &JvmClass,
    jvm_method: &JvmMethod,
    args: *const jvalue
)

Tries to call the given JVM static void method in the given JVM class. Currently panics if a JVM exception occurs.

unsafe fn get_class(&self, jvm_class_name: &str) -> Option<JvmClass>

Tries to resolve the JVM class with the given name.

unsafe fn get_constructor(
    &self,
    jvm_class: &JvmClass,
    jvm_method_signature: &str
) -> Option<JvmMethod>

Tries to resolve the JVM constructor with the given signature in the given JVM class.

unsafe fn get_method(
    &self,
    jvm_class: &JvmClass,
    jvm_method_name: &str,
    jvm_method_signature: &str
) -> Option<JvmMethod>

Tries to resolve the JVM method with the given name and signature in the given JVM class.

unsafe fn get_static_method(
    &self,
    jvm_class: &JvmClass,
    jvm_method_name: &str,
    jvm_method_signature: &str
) -> Option<JvmMethod>

Tries to resolve the static JVM method with the given name and signature in the given JVM class.

unsafe fn new_jvm_string(&self, string: &str) -> Option<JvmString>

Creates and returns a JVM string.

Trait Implementations

impl Drop for Jvm

fn drop(&mut self)

A method called when the value goes out of scope.