More SWIG Interface Files
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Dear Quantlib Users, the last days i spent with wrapping Quantlib with a java Project in Eclipse.
Did anyone create this or these interfaces ?
Kindest Regards Robert ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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On Thu, 2007-06-14 at 14:40 +0200, Metzner Robert wrote:
> the last days i spent with wrapping Quantlib with a java Project in > Eclipse. > Now i saw that there are arount 60 - 70 SWIG Interface Files, but the > Quantlib has arount 500 Source files. > I specially miss the inteface to the BlackScholesCalculator class. > > Did anyone create this or these interfaces ? > Can anyone give me the interface i miss ? Robert, unfortunately, the SWIG bindings use to lag behind the library---functionality is added when one of the developers need it. Do you think you can have a try at writing the interfaces yourself? Later, Luigi ---------------------------------------- These are my principles, and if you don't like them... Well, I have others. -- Groucho Marx ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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Dear Luigi, i am a little under pressure with the projects i have to process and under this aspect i have to talk with my purchasers. If they accept i will try to create the missing interfaces. Unfortunately i am a newbie in swig, so it will become hard for me and i would be glad if i could get some help. Another open Question in this context is if the interfaces are complete per C++ Object. i could instanciate a BlackScholesProcess Object, but could not call a method in it, because there are no methods in the object, but in the superobject. Can You or anyone give me some information about this ? Regards Robert -----Ursprüngliche Nachricht----- Von: Luigi Ballabio [mailto:[hidden email]] Gesendet: Freitag, 15. Juni 2007 11:31 An: Metzner Robert Cc: [hidden email] Betreff: Re: [Quantlib-users] More SWIG Interface Files On Thu, 2007-06-14 at 14:40 +0200, Metzner Robert wrote: > the last days i spent with wrapping Quantlib with a java Project in > Eclipse. > Now i saw that there are arount 60 - 70 SWIG Interface Files, but the > Quantlib has arount 500 Source files. > I specially miss the inteface to the BlackScholesCalculator class. > > Did anyone create this or these interfaces ? > Can anyone give me the interface i miss ? Robert, unfortunately, the SWIG bindings use to lag behind the library--- functionality is added when one of the developers need it. Do you think you can have a try at writing the interfaces yourself? Later, Luigi ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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On Fri, 2007-06-15 at 11:40 +0200, Metzner Robert wrote:
> i am a little under pressure with the projects i have to > process and under this aspect i have to talk with my > purchasers. > If they accept i will try to create the missing interfaces. > Unfortunately i am a newbie in swig, so it will become > hard for me and i would be glad if i could get some help. You're welcome to ask for directions on this list. > Another open Question in this context is if the interfaces > are complete per C++ Object. > i could instanciate a BlackScholesProcess Object, but could > not call a method in it, because there are no methods in the > object, but in the superobject. > Can You or anyone give me some information about this ? Strange. I haven't used the Java bindings myself, but it should work as usuals---given an object, you should be able to call methods defined in either its class or its superclasses. Let me look at the bindings... Oh, I see. No methods were exported for the StochasticProcess class. Probably, the one who wrote the binding (maybe me?) just needed to instantiate processes and pass them to other objects, so he didn't bother defining the methods. If you want, you can try adding them by editing stochasticprocess.i and adding the relevant methods to the class. While doing that, you might want to remove the "virtual" keywords and the accompanying "= 0". Also, replace Disposable<Array> with Array as the former is not currently supported in the bindings---same for Matrix. When you're done, regenerate the bindings by running SWIG (the command line you need is in the Makefile in the Java directory.) As I said, you're welcome to post questions here if anything goes wrong. Later, Luigi ---------------------------------------- fix, n.,v. What one does when a problem has been reported too many times to be ignored. -- the Jargon file ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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In reply to this post by Metzner Robert
Hi Robert, I had the same problems as you when I started looking at the C# wrapper. Basically, the C# wrappers are just a thin wrapper over the C++ classes. You'll see many cases where the C# constructor takes input arguments, the constructor passes the arguments to the swig c++ layer but the actual C# class does not contain any fields, properties and in some cases methods. In the cases where there are methods, you'll find that not all the methods are mapped to the c++ layer. As you start to do significant work with the C# wrappers, you'll find that you'll nees that class, or that method exposed. This causes problems when you want to do manipulation with reflection or serialisation. Serilisation will not work because the C# wrappers do not own the data. Reflection will just show a class with constructors. This is also true for the java wrappers. I believe that the current wrappers are maintaned so thay are compilable with the latest releases of QuantLib, but no new significant functionality has been added to the swig interfaces for quite some time. QuantLib, however is moving at quite a fast pace. Having said all this, creating wrappers that model the c++ classes one to one is a lot of hard work. You have to ensure that the wrappers work for the python, ruby, java and all the other languages. That"s why the current logic within the wrappers are not straight forward, but I must confess I am not a swig expert. Luigi did a great job on the current wrappers, but I believe that a lot of his time is now spent maintaining the underlying library (as well as his regular day job!!) In my opinion, QuantLib probably needs someone to keep track of what's going on within the library and then (probably when the library enters the beta-release-phase) reflect the changes within these swig wrappers. A lot of work!! My two cents... Toyin Akin, www.QuantTools.com >From: "Metzner Robert" <[hidden email]> >To: "Luigi Ballabio" <[hidden email]> >CC: [hidden email] >Subject: Re: [Quantlib-users] More SWIG Interface Files >Date: Fri, 15 Jun 2007 11:40:15 +0200 > > >Dear Luigi, >i am a little under pressure with the projects i have to >process and under this aspect i have to talk with my >purchasers. >If they accept i will try to create the missing interfaces. >Unfortunately i am a newbie in swig, so it will become >hard for me and i would be glad if i could get some help. > >Another open Question in this context is if the interfaces >are complete per C++ Object. >i could instanciate a BlackScholesProcess Object, but could >not call a method in it, because there are no methods in the >object, but in the superobject. >Can You or anyone give me some information about this ? > >Regards Robert > >-----Ursprüngliche Nachricht----- >Von: Luigi Ballabio [mailto:[hidden email]] >Gesendet: Freitag, 15. Juni 2007 11:31 >An: Metzner Robert >Cc: [hidden email] >Betreff: Re: [Quantlib-users] More SWIG Interface Files > >On Thu, 2007-06-14 at 14:40 +0200, Metzner Robert wrote: > > the last days i spent with wrapping Quantlib with a java Project in > > Eclipse. > > Now i saw that there are arount 60 - 70 SWIG Interface Files, but the > > Quantlib has arount 500 Source files. > > I specially miss the inteface to the BlackScholesCalculator class. > > > > Did anyone create this or these interfaces ? > > Can anyone give me the interface i miss ? > >Robert, >unfortunately, the SWIG bindings use to lag behind the library--- >functionality is added when one of the developers need it. >Do you think you can have a try at writing the interfaces yourself? > >Later, >Luigi > > > >------------------------------------------------------------------------- >This SF.net email is sponsored by DB2 Express >Download DB2 Express C - the FREE version of DB2 express and take >control of your XML. No limits. Just data. Click to get it now. >http://sourceforge.net/powerbar/db2/ >_______________________________________________ >QuantLib-users mailing list >[hidden email] >https://lists.sourceforge.net/lists/listinfo/quantlib-users Win tickets to the sold out Live Earth concert! http://liveearth.uk.msn.com ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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