What is the best way to interface to an iDevice via Bluetooth?

I am going to be designing a piece of hardware which will interact with an iDevice, (iphone / ipad), via Bluetooth. I will be enrolling in the MFi program. It is my intent to stream data from my hardware to an iDevice through a Bluetooth module essentially making a wireless wire i.e., serial data pipe connection.
My questions are:
What transfer speeds can I expect to achieve with iDevices?
Which Bluetooth Versions, 2.0 or 4.0, are recommended for this type of application?
Do I need an authentication coprocessor and if so how much do they cost?
Are there any preferred modules to use for this purpose; I’m currently designing around the RN-42 module?

Run a cable through the hole in the stand and lock it to the desk. There are lots of security products out there to do this, here is a good sample to look for:
imac security lock cable

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What's the best way for home sharing to iDevices without iTunes?

What's the best way for home sharing movies and tv shows on my iDevices? I know I can use home sharing through iTunes, but I'm looking for a way to share videos to my iDevices without having to leave my computer on. I have a MacPro, iPhone, iPad, Airport Extreme, and Airport Express (and several external hard drives). Can anyone suggest an app that would do this? Can I have videos on an external hd attached to an Airport Extreme/Express and have it stream without iTunes?

If your "server" is new enough to run Mountain Lion, you can purchase the OS X Server app from the Mac App store and you'll have everything you need to host a NetInstall (NetBoot) server.
If your machine does not support Mountain Lion, you'll need to purchase the appropriate Mac OS X Server software (i.e. Lion Server or Snow Leopard Server)
From there you can host NetInstall or NetRestore images, depending on your preferred workflow, which can be created using System Image Utility.
As Richard points out you can also use Deploy Studio which, again depending on your preferred workflow, might simplify things.

What is the best way to get data to a user interface?

Hi,
I'm using labview 6i. I have an application with a handful of "core" vi's that actually run my application, doing the data acquisition, analysis, and control. I am currently using these same vi's for my user interface. I also have a number of vi's that contain menu's for configuring the "core" vi's. My questions is, what is the best way to seperate the "core" vi's from the user interface vi's. Global's, data socket, control references, others?
Thanks for the help.

Hi Sal,
I have been a strong advocate of control refnums ever since LV 6i hit the streets. I recomend you look into using them to provide this conectivity.
You could accomplish this by using a variation on the following.
In your UI, create refnums for each of the controls or indicators that must be monitored or updated. Pass the appropriate refnums to each of the "core.i's" at program init time. Inside each of the core.vi's, use property nodes to read the control's values when appropriate and similarly for display purposes. (Note: Not all boolean mechanical actions are compatible with this technique. In those case you will have to explicitly write false values after find the control to be true or vise versa).
By using this technique, you can keep the UI diagrams clea
n. Depending on your app. the UI diagram could consist of the init's I mentioned above, and a while loop that watches if it's time to exit.
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

What is the best way to use Berkeley DB, C or C++ interface ?

Hello,
I'm using C++ interface but much samples, solutions and utils are in C.
What is the best way to use Berkeley DB, C or C++ interface ?
Lets talk a little about this...which is the interface you prefer and why ?
Thanks
DelNeto

Hi DelNeto,
There is a complete documentation set for C, C++ and Java. There are also examples in all 3 languages in the examples directories in your kit.
http://www.oracle.com/technology/documentation/berkeley-db/db/index.html
Ron

What is the best way to organize a tree-like structure of constants?

Hello everone!
Need help with organizing my constants structrure.
I have several tables, and each of them need a list of column names to define the fields returned after query, and also a corresponding list of hashmap keys because that columnnames are ugly. Hashmap is where I store the result of searching through the table. This question is not about JDBC because I search through tables via COM interface, no JDBC ResultSets and other stuff here.
Finally, for each table I have two constant lists and I have a list of tables. What is the best way to store this?
My first idea was to create a enum and store column data in it as String array attributes: String[] columnNames; etc.
But in this case I cannot use each column and key separately.
Another option is to create two separate enums for each table: columnNames enum and keys enum. That doesn't look great also.
The third option is to create inner class for each table and store two enums in each of that classes.
Also I can store all data in hashmaps, Strings etc.
(1) Finally, from your experience, what is the best way to organize all that stuff?
(2) I have heard that smart Java programmer should avoid using the enums by any means. Do you agree?
(3) Generally what will you prefer when creating a constant which has two values: two final Integers or enum?
Edited by: Dmitry_MSK on Jul 8, 2010 5:22 AM

I'm not sure why you don't just invent a generic data structure (e.g., table name, list of column names and aliases of column names) such as:
class QueryMetaData {
private final String tableName;
private final String[] columnNames;
private final String[] columnAliases;
}Read into the above structure from a properties file, database table, etc. You can store meta-data itself in places other than enum constants, particularly if would like to change the meta-data without requiring a new build of your application.
That having been said, WRT to your specific questions:
(1) Finally, from your experience, what is the best way to organize all that stuff?See above
(2) I have heard that smart Java programmer should avoid using the enums by any means. Do you agree?Enums are better than simple constants using int or String or something similar. If there are known, discrete values unlikely to change frequently, I see no issues with an enum. They improve the readability of code, and there are enough syntactic sugar features in the language (switch statements come to mind) to make them appealing.
(3) Generally what will you prefer when creating a constant which has two values: two final Integers or enum?
See above. Enums were introduced (in large part) to do away with storing constants as integers.
- Saish

What is the best way to add external C++ code to LabView 6.1?

I have various C++ class-based DLL's written with Visual Studio 6.0 and wish
to create instances of these C++ classes and call their methods in LabView
6.1. What is the best way to do this?
It seems based on the little reading I have done that there are two choices:
1. Wrap the C++ class as a simple COM control and use LabView's COM based
VIs to create a COM object and access the methods of various interfaces.
2. Wrap the C++ class methods as C functions and a "constructor" and
"destructor" C function to create and destroy an instance of the class. Then
use LabView's DLL call support.
Which is best? What direction is LabView going to take that better supports
the notion of C++ class libraries?
Thanks,
Te
rry

You could also try using a CIN. This is a tool that LabVIEW provides for interfacing with external code.
The CINTools libraries of LabVIEW allow you to embed compiled C code into a particular Virtual Instrument (VI) using a CIN.
In order for LabVIEW to be capable of calling compiled functions of C from a running VI, the code must be loaded and unloaded into memory at the same time as the VI code itself. LabVIEW uses object code in the form of a .lsb file which is generated by the C compiler from the C source code using the ntlvsbm.mak file. This ntlvsbm.mak file is included in the CINtools directory in the LabVIEW folder. You also must create another .mak file which includes parameter definitions for the ntlvsbm.mak file and also includes a call to the LabVIEW .mak file.
The generic documentation for CINs only explains how to use them to call C compiled code from a LabVIEW VI. It shows several development environments such as Visual C++, but in essence it only allows the user to create .lsb files out of plain C source code ( .c ) through C compilers on those environments.
The question now is how can I create .lsb files from C++ native source code using a C++ compiler. Furthermore, how can I create a .lsb file from several C++ source code files (.cpp) and make calls to C++ functions from a VI using CINs? The following explains how to do this:
1) Drop a Code Interface Node (from the Advanced Subpalette of the Functions Palette) into the LabVIEW VI. Make sure to wire the inputs.
2) Right-click on the CIN and choose "Create.c File...", then in the file dialog box specify a "name.cpp" file name. (very important: use .cpp extension)
3) Then create a name.mak makefile (text file) and add the following lines :
name=name_of_cpp_file_without_the_extension
type=CIN
cinlibraries=Kernel32.lib
CINTOOLSDIR=path_to_cintools_directory
!include <$(CINTOOLSDIR)\ntlvsb.mak>
4) Go into Visual C++ and File>Open and open the .mak file. You can even Add the name.cpp file to the project to make it easier to edit. Select that name.cpp or open it as a text file in NotePad or and edit the prototypes of the CIN MgErr functions as shown below, adding extern "C" at the beginning of the line. extern "C" CIN MgErr CINRun(float64 *INPUT);3) Select Build.exe to create the "name.lsb" file. To import the .lsb into LabVIEW, right-click on the CIN and choose "Load Code Resource...". Then, choose the name.lsb file and it is ready to run!
If you want to use several C++ source code files with .cpp extensions, then compile them in Visual C++ and link them to name.cpp and create a .lsb by modifying the name.mak as follows:
name=name_of_cpp_file_without_the_extension
otherobj=other_cpp_files_BUT_USING_.obj_extension
type=CIN
cinlibraries=Kernel32.lib
CINTOOLSDIR=path_to_cintools_directory
!include <$(CINTOOLSDIR)\ntlvsbm.mak>
It's worth a try? I have also heard of using clusters to represent classes, so you could check that out.
J.R. Allen

What is the best way of converting a Top Level VI into a 'sub vi' - or function ( without duplicating programming)

Hi,
General question here about design architecture, which i keep running into, but haven't found a really good solution. If i write a 'Top Level VI' to do something, what is the best way of converting it into a subVI - which is call-able from other VIs, while still allowing the top level VI to have synchronised feedback/indicator updates.
I guess the point is that when something is a top level VI you write gui logic about what happens when someone clicks buttons or whatever - which you don't want in the 'sub vi' version.
I did at one point try having a hidden boolean button that was an input to the subVI which would let the VI know if it was supposed to be doing the front panel stuff - or simply running as a subVI. This isn't really ideal though - since it would be better to be able to hive off the grizzly useful stuff from the fluffy - front panel updating stuff - having them together makes the VIs rather untidy. More annoyingly though, if you have the front panel version of it running - say waiting for you to hit 'go', it breaks all the other VIs that use it as a sub vi - since they can't compile when a sub vi is already running.
Another possibility that i tried was to basically duplicate the vi so that there was a backend part, and a front end part - and when i click 'go' the backend part is called as a sub vi. The problem with this is that it really limits the interface that the user gets - since none of the controls on the front panel update with the results untill the sub vi is over. I guess again i could solve this by passing references to some of the controls to update them in the subvi - but this doesn't really seem like the ideal situation if the subvi is called by something else without the same types of controls etc.
One final idea i had was to essentially paste all the controls in the VI into a global variable file, and make the sub vi update them, and the front panel VI read from them. This seems to 'work' - although clearly it is a work around rather than a proper solution - since i spend loads of time worrying about how i update cluster variables in the global - reading and writing.
Does anyone have any guidance on what they do to solve this problem?
JP

You could run a subvis in a Subpanel on your top level. Lets you see the current data while the subvi is running.
--Using LV8.2, 8.6, 2009, 2012--

What is the best way to keep your macbook pro in tip top condition. performance wise

What is the best way to keep the performance of a macbook pro in tip top shape. Over the years my computer seems to act like a pc with all of its hicups and lockups.
I am running mountain lion and this computer is approx 2 years old.
Not sure if there is some sort of software that will help with this or is there something else I can do.
Thanks
GAJ

How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; all should be made directly from the original data. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the App Store or Software Update preference pane (depending on the OS version), you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis.
Keeping up to date is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible. Incompatibility with third-party software is by far the most common cause of trouble with system updates.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” "boosters," “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, such stuff is useless or worse than useless. Above all, avoid any software that purports to change the look and feel of the user interface.
It's not much of an exaggeration to say that the whole "utility" software industry for the Mac is a fraud on consumers. The most extreme examples are the "CleanMyMac" and “MacKeeper” scams, but there are many others.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for, and doesn't change the way other software works.
Safari extensions, and perhaps the equivalent for other web browsers, are a partial exception to the above rule. Most are safe, and they're easy to get rid of if they don't work. Some may cause the browser to crash or otherwise malfunction. Some are malicious. Use with caution, and install only well-known extensions from relatively trustworthy sources, such as the Safari Extensions Gallery.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve. Do not rely on "utilities" such as "AppCleaner" and the like that purport to remove software.
4. Don't install bad, conflicting, or unnecessary fonts. Whenever you install new fonts, use the validation feature of the built-in Font Book application to make sure the fonts aren't defective and don't conflict with each other or with others that you already have. See the built-in help and this support article for instructions. Deactivate or remove fonts that you don't really need to speed up application launching.
5. Avoid malware. Malware is malicious software that circulates on the Internet. This kind of attack on OS X was once so rare that it was hardly a concern, but malware is now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must come directly from the developer's website. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from the web, without your having requested it, should go straight into the Trash. A web page that tells you that your computer has a “virus,” or that anything else is wrong with it, is a scam.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most people don't.
6. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem.
While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage use and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as OmniDiskSweeper to explore the volume and find out what's taking up the most space. Move seldom-used large files to secondary storage.
7. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," "testing the hardware," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
To use a Mac effectively, you have to free yourself from the Windows mindset that every computer needs regular downtime maintenance such as "defragging" and "registry cleaning." Those concepts do not apply to the Mac platform. A computing device is not something you should have to think about very much. It should be an almost transparent medium through which you communicate, work, and play. If you want a machine that is always whining for your attention like a neurotic dog, use a PC.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

What's the best way to connect the audio out of my Mac to my stereo receiver?

I want to listen to my mp3 collection through my home theatre stero receiver.
I have 2 audio interfaces that I connect to my mac through USB and Firewire: Digi Design Mbox mini and Maudio ProFire 610.
I've tried going from a headphone 1/8'' connector from the headphone out of my mac to rca connected to the aux (or whatever) of my stereo.
I've tried using a 1/4'' adapter on the 1/8'' to go from my mbox mini's headphone output to the rca aux on my stereo.
The problem is I'm hearing distortions that sound like clipping, or static, crunchiness on certain frequencies in a lot of my mp3's that shouldn't be there.
I listen to lots of music, and a lot of it uses distortion, like shoegaze, drone etc but I know what I'm hearing is unnatural.
I even hear these flaws when I listen to headphones through the headphone out of my mbox.
Page 2 on this instruction manual says I should be able to go from the monitor outs to my stereo. The monitor outs are 1/4 inch out so I figured I would need a 1/4 inch to rca cable.
I got this one from monster thinking it should work. No dice.
So my question is, what is the best way to connect my mac to my stereo? I need to avoid these distortions and flaws in the audio i'm hearing or I will go nuts.
Why might I be getting these clipping distoritons?
any advice would be fantastic

It depends on how close the receiver is to the iMac. If it's just a few feet away you need at cable like:
http://www.amazon.com/StarTech-com-THINTOSMIN6-Toslink-Digital-Optical/dp/B00016 W6Y6/ref=sr_1_2?ie=UTF8&qid=1316096392&sr=8-2
However if the receiver is across the room or the house you would be best to enable Air Play, this enables you to wirelessly connect the receiver to the iMac. You will need the above cable and an Airport Express. If you are not familiar with Air Play navigate to:
http://www.apple.com/itunes/airplay/
I have been using it for quite some time and find it great. If you are not familiar with the Airport Express here is the link to it:
http://www.apple.com/airportexpress/
You can even find refurbished ones on Apples website for about $79.

What is the best way to make music in Logic pro8?

ok, Im using a Mac, 3 external keyboards,a profire 2626 (audio interface) and a MIDI sport (midi interface). I am wanting to track in the audio from the 3 keyboards as MIDI. I wanted to know what is the best way to do this? Is it required to record the audio and MIDI at the same time? When i do do this, (record MIDI and Audio simultaniously), i get this doubling effect after the loop comes back, because of the MIDI and the Audio tracks combined. Arent you supposed to create some kind of Aux track to avoid this so, you can monitor what you just made so this "doubling effect" isnt heard?...another question. I am experiencing latency and it doesnt make sense. I have a low buffer size (32), but i only experience it when i play the space bar or hit record, not if im just sitting there hitting keys..however, I found a trick to avoid this, but here is where it doesnt make sense. If i go to Settings>Synchronization>MIDI...then set my Transmit MIDI Clock Destination to (ALL)...i hear the Latency wehne i hit space bar or record..But if i deselect All...and choose MIDI Sport Port 1...or port 2....there is no latency when i hit space bar or record.. and this doesnt make sense to me because i have 3 keyboards in Ports 1-3..so why wont the destination work better on All?....ok,,that sums it up ..thanks

There are many different ways to use Logic. You will develop your own technique as you gain experience with it. The doubling you are experiencing is because the midi track is being sent back into your instrument as you record.. Shut off local control on your keyboard. Or temporarily assign the midi track you are recording to an instrument that is NOT being sent back to the same instrument..
If you are recording three midi keyboards at once, make sure each one is sending on a different midi channel, also make sure that midi instruments are NOt sending back to your keyboards.
Getting rid of latency is another problem. I am not familiar with MIDI sport. What you want to do is listen to a LIVE input (coming directly from instrument) - then turn the level down on the corresponding track you are recording into Logic. If your audio interface won't let you do that you must turn the audio buffer down as low as your computer will allow without distortion.

What is the best way to connect my guitar to the usb port on my IMac

This is for use with Logic Pro X
what is the best way to connect my guitar to the usb port on my
I-Mac

As has been said really, the less you pay the less quality, and flexibility you'll have on your sound.
For example, you could run on a 'Rocksmith Real Tone Cable' if you just wanted a cheap way of getting your guitar into the computer for some fun. Probably cost you $30 (I live in UK so can't be sure). If you're starting out then this could be considered the best option for dipping your toe in the water without spending too much.
You won't get a really nasty sound out of that if you can process it yourself in Logic afterwards to clean up, but it won't be great either. I imagine it could get quite noisy so you'd need to get heavily gating your guitar sound, if you're playing something clean that's not ideal.
Longterm, you're far better getting a decent audio interface, as you need something to play sound back through, if you have different input sources you usually have to create an aggregrate device on osx to use multple sources at once esp if you're using the built in audio chip on your mac to listen.
All this can add latency and possibly sync issues (i.e. drum tracks not in time with audio etc.), although generally it's not too bad, but it's something worth knowing if you want to do things on the cheap without buying a dedicated interface.
What kind of money did you want to spend? Are you thinking super duper cheap, and then see how it goes and maybe spend more in future if you enjoy it? Personally i would say £100-150 would get your something good to start with, like that Presonus audiobox, there's a lot of options like that available.
My local music shop always push the alesis io2 on new users, gotta say i'm not that overly impressed with it. Line 6 stuff will be good however, but limiting. Although i beleive you get their software for free with it?

What is the best way to connect a firewall cluster to a VPC domain

Hi All
Can anyone help me decide what is the best way to connect a firewall cluster to a VDC running in a pair of N7K's which is a VPC domain?
Can I configure a VLAN interface on each VDC and use HSRP? I was planning on presenting one 10GB cable from each VDC to each firewall. Would this work OK? HSRP traffic will go across the VPC peer link correct?
thanks all

No, but the one caveat is vpc orphan ports. If the vpc link between the nexus switches fails for any reason, all the vpc ports on the vpc secondary switch will be forced down. So it's recommended to connect single port devices to the primary vpc switch so the connections stay up. But if you're ok with that, then I don't see any problems.
You have a few options, one would be to run a separate link between your nexus switches for non-vpc vlans. These vlans would not be allowed over the vpc peer-link, or forwarded out vpc's.
See here page 49 :
http://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf

What is the best way to add a guest networ?

What is the best way to configure a guest network? The guest network would have access to the Internet only. The guest network will would not have access to servers. We have a an ASA firewall, Cisco router and L3 switch.
Thanks.

You have two options, either use ZBF on the router or use the ASA to firewall the guest network.
In either case the guest network will be a dmz/zone itself. You will use ACLs to define where hosts can go and cannot go. And you will also set up their translations for when they want to browse the internet.
For an IOS set up you would have zone guest and zone outside for example and you would define the policies for the zone pair guest-to-out. Also you would define translations for the guest network when it traverses and goes to the outside.
For an ASA scenario you will have a interface or subinterface guest lets say, and the outside interface. Again you would define policies for traffic traversing these two interfaces and the corresponding translations.
PK

What data does SNMP return and what is the best way to explore it?

Hi All
I have some queries about using SNMP on Cisco devices.
1. What is the best way to get an idea of what data MIBs can return?
I have entered the commmand "show snmp mib". However, the number of MIBs generated is huge!
2. Can you enter a command on the Cisco device itself that returns snmp data?
e.g. if I want to see what data a MIB entry returns, can I interrogate it on the Cisco device itself rather than having to rely on network management software?
The reason I ask is that we are currently looking for Network Management Software. However, I have no idea what data SNMP can return, therefore don't know if what the Management Software offers is comprehensive or not.
Any suggestions on how best to get an idea the data SNMP can generate plus any other suggestions are very welcome!
Thanks
John

Generally speaking, snmp can query about any parameter of the system. An enterprise class device has almost all conceivable parameters instrumented thus. A device's inventory (chassis, cards, ports, power supplies, software image, etc.) and the state of its interfaces and traffic they are carrying are among the primary ones.
You can query a device's snmp variables remotely "by hand" using an open source distribution of a tool like snmpwalk. You need to know what you're looking for - i.e., the exact oid (object ID) string or else you get a long reply like you alluded to. It also helps to have the actual MIB you are querying against locally so that the output you get will be human-readable. Otherwise you'll get long numeric strings (the snmp oid) followed by alphanumeric values which may or may not make sense at first glance depending on the oid being queried. A MIB's purpose is to add that abstraction layer / interpretation to make the output more useful to the operator.
The purpose of an NMS (very generally speaking) is to give an even higher layer of abstraction to organize the querying and reporting of all these various data into a useful system with dashboards, graphs, reports etc.

What is the best way for using a C++ in the EJB?

What is the best way for using C++ in the EJB ie
either 1. Socket programming
2. JNI

To what purpose?
To use C++ in the client you could generate IDL from your remote interfaces and run that through your vendor's IDL-to-C++ processor.

What is the best way to interface to an iDevice via Bluetooth?

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