On Feb 13, 2008, at 3:24 PM, Peter Rootham-Smith wrote:
At Leopard a considerable amount of deprecation has happened to
Apple's NSArray and NSSpeechSynthesizer classes. I would really
like to see the Javadoc for these classes to understand things.
NSArray and NSSpeechSynthesizer are both classes that are part of
"Java Bridge". These are Objective-C classes that are bridged to
Java objects, but have been deprecated in Leopard, and not present
in 64-bit VMs.
The supported way to access this functionality is to write JNI code
that calls these native frameworks, and compile a universal binary
that contains slices for ppc, i386, and x86_64. Our Java JNI
application sample should be able to help you get started.
Please note that calling into Cocoa frameworks from the Java VM
means that you will have to setup and tear down autorelease pools,
catch NSExceptions, and -performSelectorOnMainThread, from native
Objective-C code. This is not for the faint of heart. Most AppKit
APIs are designed to be called from the main thread (thread 0), in
much the same way Swing components should only be called from the
Event Dispatch Thread (EDT). Of course - because life is hard -
arbitrary client code cannot be run on thread 0, because it has to
service the application's runloop, so you will have to bounce back
and forth between multiple threads to get information back and forth
to the Java VM.
I hope this helps clarify where things stand, even if it is not
exactly comforting.
Mike Swingler
Java Frameworks Engineer
Apple Inc.
