[Zope-dev] Re: Product installation (implicit vs. explicit)
Chris McDonough wrote: The question is this: do you think there should be an explicit install step for egg packages/Products or do you think it should be possible to just put eggs on your PYTHONPATH (and perhaps adjust a config file with requirements)? To be honest, the explicit'ness of an external egg install process irks me but I cannot really give a reason why (perhaps its just because I'm used to having Zope2 products just work). Also, with having to install eggs, how would this work with eggs that are actually directories (that are formed like egg zip files) and dealing with eggs from a development standpoint. Does this mean they would get copied some place? Or just that something would be registered into the zodb registering those eggs, etc... - Rocky -- Rocky Burt ServerZen Software -- http://www.serverzen.com ServerZen Hosting -- http://www.serverzenhosting.net News About The Server -- http://www.serverzen.net ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: Product installation (implicit vs. explicit)
On Dec 22, 2005, at 10:17 AM, Rocky Burt wrote: Chris McDonough wrote: The question is this: do you think there should be an explicit install step for egg packages/Products or do you think it should be possible to just put eggs on your PYTHONPATH (and perhaps adjust a config file with requirements)? To be honest, the explicit'ness of an external egg install process irks me but I cannot really give a reason why (perhaps its just because I'm used to having Zope2 products just work). What do Java people expect from jar files (I ask as a Java dope)? Do they have a more limited scope (no dependencies, for example?) Also, with having to install eggs, how would this work with eggs that are actually directories (that are formed like egg zip files) and dealing with eggs from a development standpoint. Does this mean they would get copied some place? Or just that something would be registered into the zodb registering those eggs, etc... I doubt anything would go into the ZODB; other than that I'm not sure. Whatever got created would almost certainly be based on Phillip's easy_install program which is documented at http:// peak.telecommunity.com/DevCenter/EasyInstall . - C ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: Product installation (implicit vs. explicit)
--On 22. Dezember 2005 10:46:42 -0500 Chris McDonough [EMAIL PROTECTED] wrote: What do Java people expect from jar files (I ask as a Java dope)? Do they have a more limited scope (no dependencies, for example?) Jar files have no dependencies. -aj pgpKlIVHcdQM0.pgp Description: PGP signature ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: Product installation (implicit vs. explicit)
On 12/22/05, Andreas Jung [EMAIL PROTECTED] wrote: Jar files have no dependencies. Well, I know you know what you mean here, but I'll elaborate since the kids haven't started fighting yet this morning. :-) Jar files don't have dependency metadata. They're pretty much equivalent to zipped Python libraries. Python Eggs take the next step by adding the dependency information and other interesting bits in the support infrastructure. I'm sure there's a Java equivalent (or several), but I've not heard of it. -Fred -- Fred L. Drake, Jr.fdrake at gmail.com There is no wealth but life. --John Ruskin ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Product installation (implicit vs. explicit)
Chris McDonough wrote: What do Java people expect from jar files (I ask as a Java dope)? Do they have a more limited scope (no dependencies, for example?) Coming from a heavy java/j2ee background I can say that people in java-land expect to place jar's on the java classpath (equivalent of pythonpath) and they just work with regard to showing up on the classpath. Taking this one step further, a Zope2 product egg would be closer to a J2EE ear (Enterprise ARchive) file rather than a Java jar file. An ear file is basically a jar file with extra metadata stating that it follows the appropriate conventions for j2ee deployment (basically instructions on which parts of the ear file are for ejb management, more for web file management, etc). Now the best question is, do ear files get automatically configured and installed by a j2ee server? Answer: It depends. This is comppletely up to the j2ee server implementation. Orion and JBoss for example (full j2ee implementations) have a special directory where you can simply drop ear files and they get automatically get picked up by the server and deployed as applications/components. But, having said that, I know for a fact that the preferred manner to configure an ear file with Orion is to do it explicitly in Orion's xml configuration files. Hopefully that sheds some light. Regarding dependencies, no, jar/war/ear files (java's zip file types) do not have dependency configuration although they do have the ability to use something else if it exists (you can specify a Class-Path argument in the manifest file). - Rocky -- Rocky Burt ServerZen Software -- http://www.serverzen.com ServerZen Hosting -- http://www.serverzenhosting.net News About The Server -- http://www.serverzen.net ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: Product installation (implicit vs. explicit)
Fred Drake wrote: On 12/22/05, Andreas Jung [EMAIL PROTECTED] wrote: Jar files have no dependencies. Well, I know you know what you mean here, but I'll elaborate since the kids haven't started fighting yet this morning. :-) Jar files don't have dependency metadata. They're pretty much equivalent to zipped Python libraries. Python Eggs take the next step by adding the dependency information and other interesting bits in the support infrastructure. I'm sure there's a Java equivalent (or several), but I've not heard of it. There is one, and it is a very powerful and mature. Or so I have been told by my good friend and coworker Eric Barroca. It's called OSGi (http://www.osgi.org/) It is used for set top boxes applications provisionning, as well as for assembling components in the Eclipse platform (including Eclipse RCP) which, according to another good friend and coworker (Julien Anguenot) shares some similarities with the Zope 3 component architecture. http://www.research.ibm.com/journal/sj/442/gruber.pdf http://www.eclipse.org/org/press-release/20051011osgi.htm S. -- Stéfane Fermigier, Tel: +33 (0)6 63 04 12 77 (mobile). Nuxeo Collaborative Portal Server: http://www.nuxeo.com/cps Gestion de contenu web / portail collaboratif / groupware / open source! ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
