Sunburned Surveyor wrote: >Martin, > >Thanks for this great clarification. I believe in my particular case I >will have to release the converter code under the GPL, since I will be >linking directly to JUMP code to do the conversion. > >I'll have to consider how important it is to use GPL for other code I >write that isn't tied as directly to JUMP. I'd appreciate any thoughts >on this. Does code released under the GPL discourage use and adoption >in a way that code released under the LGPL does not? > > yes.. do it under LGPL if you can (i.e. don't rely on GPL code). what i have done (though i am still not sure if it is truly correct) is to release the mapgentoolbox code under an apache like license. But the important thing has been that i have put my code in separate *.jars and not in the jar that contains the jump-extension class stuff. I think that having two jars is the way.
stefan >The Sunburned Surveyor > >On 6/21/07, Martin Davis <[EMAIL PROTECTED]> wrote: > > >>I don't think you can develop code that links in GPL code under anything >>except GPL. See here: >> >>http://www.gnu.org/copyleft/gpl-faq.html#GPLAndPlugins >> >>LGPL is weaker than GPL, so you can't release an actual plugin class >>(which uses the JUMP API's) as LGPL. >> >>However, I think what you can do is package up an independent library >>under some other license (as long as it doesn't use any JUMP code) and >>then call it from a "wrapper" plugin which is under GPL. >> >>Sunburned Surveyor wrote: >> >> >>>I think Paul hit the nail on the head. GeoTools is worried about >>>including code that can't be included in commercial applications. >>> >>>I found an interesting article that discusses whether or not you >>>should use the LGPL or GPL for library code at the link Sascha sent. >>>The article is here: >>> >>>http://www.fsf.org/licensing/licenses/why-not-lgpl.html >>> >>>I'll have to think carefully about this. It seems like a very >>>important difference. Any thoughts on whether or not we want to >>>encourage development of OpenJUMP plug-ins and "support" or library >>>code under the GPL or LGPL? >>> >>>(I'm probably opening Pandora's box with this question.) >>> >>>I'm really undecided as to which license I should use for my code. >>> >>>The Sunburned Surveyor >>> >>>On 6/21/07, Paul Austin <[EMAIL PROTECTED]> wrote: >>> >>> >>> >>>>The only problem would be if you used SS's new classes in a commercial >>>>application. Which in fact would be unlikely as they would not be >>>>allowed to use the JUMP code anyway because it is GPL. >>>> >>>>I think the rule is commercial apps can use LGPL libraries but not GPL ones. >>>> >>>>I took another approach for the same problem I added a FeatureFactory to >>>>my reader components and have a JumpFeatureFactory that will create >>>>features which implement both my DataObject interface and the Jump >>>>Feature interface. This way there is no conversion required between >>>>feature models. You just set the factory based on the type of feature >>>>instance you want. The reader uses this factory to create the instances. >>>> >>>>Paul >>>> >>>>Sunburned Surveyor wrote: >>>> >>>> >>>> >>>>>I was talking to Jody Garnett a little bit about a home for a >>>>>converter or pair of converters that would allow developers to do the >>>>>GeoTools > JUMP and JUMP > GeoTools Feature Model conversion. He said >>>>>that there may be some issues since any code that I write will >>>>>necessarily need to utilize JUMP code released under the GPL. This is >>>>>an issue because GeoTools is released under the LGPL. >>>>> >>>>>I don't know as much about this area as I should, so I'm hoping to get >>>>>some suggestions from this group. How might I be able to get code that >>>>>works with JUMP code under the GPl to play nice with GeoTools code >>>>>released under the LGPL? Is this even possible? >>>>> >>>>>Thanks for the suggestions. >>>>> >>>>>The Sunburned Surveyor >>>>> >>>>>------------------------------------------------------------------------- >>>>>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/ >>>>>_______________________________________________ >>>>>Jump-pilot-devel mailing list >>>>>Jump-pilot-devel@lists.sourceforge.net >>>>>https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>>>> >>>>> >>>>> >>>>> >>>>------------------------------------------------------------------------- >>>>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/ >>>>_______________________________________________ >>>>Jump-pilot-devel mailing list >>>>Jump-pilot-devel@lists.sourceforge.net >>>>https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>>> >>>> >>>> >>>> >>>------------------------------------------------------------------------- >>>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/ >>>_______________________________________________ >>>Jump-pilot-devel mailing list >>>Jump-pilot-devel@lists.sourceforge.net >>>https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>> >>> >>> >>> >>-- >>Martin Davis >>Senior Technical Architect >>Refractions Research, Inc. >>(250) 383-3022 >> >> >>------------------------------------------------------------------------- >>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/ >>_______________________________________________ >>Jump-pilot-devel mailing list >>Jump-pilot-devel@lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >> >> >> > >------------------------------------------------------------------------- >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/ >_______________________________________________ >Jump-pilot-devel mailing list >Jump-pilot-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > ------------------------------------------------------------------------- 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. 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