Trait jni::descriptors::Desc

pub trait Desc<'a, T> {
    fn lookup(self, _: &JNIEnv<'a>) -> Result<T>;
}

Trait for things that can be looked up through the JNI via a descriptor. This will be something like the fully-qualified class name java/lang/String or a tuple containing a class descriptor, method name, and method signature. For convenience, this is also implemented for the concrete types themselves in addition to their descriptors.

Required Methods

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

Look up the concrete type from the JVM.

Implementors

• impl<'a, T> Desc<'a, T> for T
• impl<'a, T> Desc<'a, JClass<'a>> for T where
    T: Into<JNIString>, 
• impl<'a, 'b> Desc<'a, JClass<'a>> for JObject<'b>
• impl<'a> Desc<'a, JClass<'a>> for &'a GlobalRef
• impl<'a, T, U, V> Desc<'a, JMethodID<'a>> for (T, U, V) where
    T: Desc<'a, JClass<'a>>,
    U: Into<JNIString>,
    V: Into<JNIString>, 
• impl<'a, T, Signature> Desc<'a, JMethodID<'a>> for (T, Signature) where
    T: Desc<'a, JClass<'a>>,
    Signature: Into<JNIString>, 
• impl<'a, T, U, V> Desc<'a, JStaticMethodID<'a>> for (T, U, V) where
    T: Desc<'a, JClass<'a>>,
    U: Into<JNIString>,
    V: Into<JNIString>, 
• impl<'a, T, U, V> Desc<'a, JFieldID<'a>> for (T, U, V) where
    T: Desc<'a, JClass<'a>>,
    U: Into<JNIString>,
    V: Into<JNIString>, 
• impl<'a, C, M> Desc<'a, JThrowable<'a>> for (C, M) where
    C: Desc<'a, JClass<'a>>,
    M: Into<JNIString>, 
• impl<'a> Desc<'a, JThrowable<'a>> for Exception
• impl<'a, 'b> Desc<'a, JThrowable<'a>> for &'b str
• impl<'a> Desc<'a, JThrowable<'a>> for String
• impl<'a, 'b> Desc<'a, JThrowable<'a>> for JNIString