GetByteArrayRegion in JNI

Question

The question is: Suppose I use the function: (* env) -> GetByteArrayRegion (env, array, 0, len, (jbyte *)buf); In this case, a certain number of bytes written from the array to the buf or vice versa? Maybe a simple question, but I'm confused. Help, please:. In the documentation is not found.

Solution

`Get < PrimitiveTypeArray>ArrayRegion' is a family of functions that copies a region of a primitive array into a buffer. That's what the documentation says. It seems clear to me.

Comments

[Kyborg2011]

Is there a function to copy the contrary PART of jbyte to jbyteArray?

[user207421]

@Kyborg2011: yes, Set<PrimitiveType>ArrayRegion(). It's the next API in the JNI specification after Get<PrimitiveType>ArrayRegion().

[cnvzmxcvmcx]

Adding link to documentation: docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/…