RE: HELP DRIVER!
On Wed, 16 Jan 2002, Robert C. Leif, Ph.D. wrote: > " I don't think a lengthy Java v. Ada conversation going on in this list > would do much for the state of FOP as we know it, either" Too late, here we go... :) -David
RE: HELP DRIVER!
From: Robert Leif To: Carlos Araya and James Richardson. I totally agree with James Richardson. " I don't think a lengthy Java v. Ada conversation going on in this list would do much for the state of FOP as we know it, either" Carlos Araya wrote: "3. What compilers currently available as open source can compile ADA as a cross platform product like Java's bytecode?" -- -- -- GNAT DOCUMENTS -- -- -- -- G N A T I N F O . T X T -- -- -- --GNAT version 3.13p -- -- -- -- Copyright (C) 1992 - 2000 Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- -- -- http://www.gnat.com/ Very good, but expensive ftp://ftp.cs.nyu.edu/pub/gnat/3.13p/ free For more information see http://www.adapower.com/ -Original Message- From: Carlos Araya [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2002 2:40 PM To: [EMAIL PROTECTED] Subject: Re: HELP DRIVER! Robert: It may be so, Ada may indeed be 1000% more robust than Java, however this being an open source development effort I question your proclamation that everything should switch to Ada on 3 levels: 1. How many Ada programmers do you know who have the time commitment and dedication to stay with an open source project. If I remember correctly the few Ada programmers I know are booked solid for the next couple years. 2. How serious are you about retraining all the developers who contribute code to FOP (starting with the original developer who still has commit privileges) in a language who, for many, is an unknown. It's easier to demand a better language and more and more stuff but we also need to remember that these folks are doing it for free, on their own time. 3. What compilers currently available as open source can compile ADA as a cross platform product like Java's bytecode? If there are any (I'm only familiar with ADA through people who work with it) are they deployed as widely as the JDK/JRE is for Java? If it's that important to you that the code is written in Ada, go ahead, get the source and translate it, then come show us how wrong we were. Until then I honestly don't think it should change... It's not just an exercise on how powerful the underlying language is but on how many people uses it And, with all due respect, What on earth do the 777 and the french railroad have to do with this discussion? Carlos On 01/16/02 14:20, "Robert C. Leif, Ph.D." <[EMAIL PROTECTED]> wrote: > From: Bob Leif, > To: James Richardson > I am dead serious. Evidently, you have had no experience with Ada 95. > Ada is much better at modeling XML than Java. I realize that Java is a > marketing success. Unfortunately, it is based to a great extent on > obsolete technology. For instance, it lacks: generics (templates), > enumerated types, and range checking. Ada is also safe enough for the > Boeing 777 flight control system and the French railroads. > > -Original Message- > From: James Richardson [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 16, 2002 9:38 AM > To: [EMAIL PROTECTED] > Subject: Re: HELP DRIVER! > > Robert C. Leif, Ph.D. wrote: > >> >> >> From: Bob Leif, >> It seems that the Java underlying FOP is a source of a significant >> number of problems. I would suggest that the developers switch to a > much >> more reliable and efficient object oriented technology, Ada. Since Ada >> is an ISO standard and has an extensive validation suite, it is much >> more portable than Java. The GNAT (GNU) Ada compiler can produce both > J >> codes and fully compiled executables. >> > > > > Wow, is it April already? > > -- Carlos E. Araya ---+ WebCT Administrator/Trainer P | California Virtual Campus - | C/O De Anza College G | 21250 Stevens Creek Blvd ---+ Cupertino, CA 95014 email [EMAIL PROTECTED] web http://www.cvc1.org/ (work)
Re: HELP DRIVER!
Robert C. Leif, Ph.D. wrote: From: Bob Leif, To: James Richardson I am dead serious. Evidently, you have had no experience with Ada 95. Ada is much better at modeling XML than Java. I realize that Java is a marketing success. Unfortunately, it is based to a great extent on obsolete technology. For instance, it lacks: generics (templates), enumerated types, and range checking. Ada is also safe enough for the Boeing 777 flight control system and the French railroads. Look, I know your Commodore 64 is much better than my Amstrad, but thats not really the point. Ada may well be great (Or it might not be, that's not the point I'm making), but its use in non educational/military/safety critical systems is limited. Even if somebody were to write a super-dooper FO transformer in ada, working for a large company, I probably couldn't use it, as my applications are all java, and the integration would be difficult. If you want, please write in ada, but just popping your head round the door, and saying "'drop everything!' this other thing is much better" accomplishes little. I don't think a lengthy Java v. Ada conversation going on in this list would do much for the state of FOP as we know it, either Best Regards, James
Re: HELP DRIVER!
Robert: It may be so, Ada may indeed be 1000% more robust than Java, however this being an open source development effort I question your proclamation that everything should switch to Ada on 3 levels: 1. How many Ada programmers do you know who have the time commitment and dedication to stay with an open source project. If I remember correctly the few Ada programmers I know are booked solid for the next couple years. 2. How serious are you about retraining all the developers who contribute code to FOP (starting with the original developer who still has commit privileges) in a language who, for many, is an unknown. It's easier to demand a better language and more and more stuff but we also need to remember that these folks are doing it for free, on their own time. 3. What compilers currently available as open source can compile ADA as a cross platform product like Java's bytecode? If there are any (I'm only familiar with ADA through people who work with it) are they deployed as widely as the JDK/JRE is for Java? If it's that important to you that the code is written in Ada, go ahead, get the source and translate it, then come show us how wrong we were. Until then I honestly don't think it should change... It's not just an exercise on how powerful the underlying language is but on how many people uses it And, with all due respect, What on earth do the 777 and the french railroad have to do with this discussion? Carlos On 01/16/02 14:20, "Robert C. Leif, Ph.D." <[EMAIL PROTECTED]> wrote: > From: Bob Leif, > To: James Richardson > I am dead serious. Evidently, you have had no experience with Ada 95. > Ada is much better at modeling XML than Java. I realize that Java is a > marketing success. Unfortunately, it is based to a great extent on > obsolete technology. For instance, it lacks: generics (templates), > enumerated types, and range checking. Ada is also safe enough for the > Boeing 777 flight control system and the French railroads. > > -Original Message- > From: James Richardson [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 16, 2002 9:38 AM > To: [EMAIL PROTECTED] > Subject: Re: HELP DRIVER! > > Robert C. Leif, Ph.D. wrote: > >> >> >> From: Bob Leif, >> It seems that the Java underlying FOP is a source of a significant >> number of problems. I would suggest that the developers switch to a > much >> more reliable and efficient object oriented technology, Ada. Since Ada >> is an ISO standard and has an extensive validation suite, it is much >> more portable than Java. The GNAT (GNU) Ada compiler can produce both > J >> codes and fully compiled executables. >> > > > > Wow, is it April already? > > -- Carlos E. Araya ---+ WebCT Administrator/Trainer P | California Virtual Campus - | C/O De Anza College G | 21250 Stevens Creek Blvd ---+ Cupertino, CA 95014 email [EMAIL PROTECTED] web http://www.cvc1.org/ (work) http://www.silverwolf-net.net (personal) phone 408 257 0420 (work) PGP Fingerprint:E629 5DFD 7EAE 4995 E9D7 3D2F 5A9F 0CE7 DFE7 1756 Paradoxically, a refusal to 'put a monetary value on life' means that life is often undervalued. -- Artificial Intelligence: A Modern Approach
RE: HELP DRIVER!
From: Bob Leif, To: James Richardson I am dead serious. Evidently, you have had no experience with Ada 95. Ada is much better at modeling XML than Java. I realize that Java is a marketing success. Unfortunately, it is based to a great extent on obsolete technology. For instance, it lacks: generics (templates), enumerated types, and range checking. Ada is also safe enough for the Boeing 777 flight control system and the French railroads. -Original Message- From: James Richardson [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2002 9:38 AM To: [EMAIL PROTECTED] Subject: Re: HELP DRIVER! Robert C. Leif, Ph.D. wrote: > > > From: Bob Leif, > It seems that the Java underlying FOP is a source of a significant > number of problems. I would suggest that the developers switch to a much > more reliable and efficient object oriented technology, Ada. Since Ada > is an ISO standard and has an extensive validation suite, it is much > more portable than Java. The GNAT (GNU) Ada compiler can produce both J > codes and fully compiled executables. > Wow, is it April already?
Re: HELP DRIVER!
Robert C. Leif, Ph.D. wrote: From: Bob Leif, It seems that the Java underlying FOP is a source of a significant number of problems. I would suggest that the developers switch to a much more reliable and efficient object oriented technology, Ada. Since Ada is an ISO standard and has an extensive validation suite, it is much more portable than Java. The GNAT (GNU) Ada compiler can produce both J codes and fully compiled executables. Wow, is it April already?
RE: HELP DRIVER!
From: Bob Leif, It seems that the Java underlying FOP is a source of a significant number of problems. I would suggest that the developers switch to a much more reliable and efficient object oriented technology, Ada. Since Ada is an ISO standard and has an extensive validation suite, it is much more portable than Java. The GNAT (GNU) Ada compiler can produce both J codes and fully compiled executables. -Original Message- From: dav sem [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2002 6:18 AM To: [EMAIL PROTECTED] Subject: Re: HELP DRIVER! Hi, another info: Jaguar Server 3.6.1 use Sun/jdk1.2 and when I test Fop I use jdk1.3.1 This can be an answer? DS. >From: Jeremias Maerki <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: Re: HELP DRIVER! >Date: Wed, 16 Jan 2002 13:23:47 +0100 > >What version do you use? As far as I know there's no Service class in >current versions. You may need to upgrade. > >On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > > Hi, > > > > I'm building EJB Component that perform a pdf document. > > The EJB component is correctly installed in Jaguar Server (EJB >Container). I > > have successful set up the classpath > > inside Jaguar server and when I try to instantiate Driver -> > > > > Driver driver = new Driver(); > > > > I obtain this error result: > > > > java.lang.NullPointerException > >at org.apache.fop.apps.Service.providers(Driver.java:540) > >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) > >at org.apache.fop.apps.Driver.(Driver.java:189) > > > > Why?? > > Previously I have build a pure java application > > that perform a pdf document and I haven't never received this! > > > > HELP!!!1 > > > > Tanks in advance > > > > Davide > >Cheers, >Jeremias Märki > >mailto:[EMAIL PROTECTED] > >OUTLINE AG >Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern >Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 >Internet http://www.outline.ch > _ Scarica GRATUITAMENTE MSN Explorer dall'indirizzo http://explorer.msn.it/intl.asp.
Re: HELP DRIVER!
Hi Irina, this is not (for me) a right answer, in my project the EJB wrap a PURE Java class that call Driver() constructor Jaguar Server had a JVM (support Servlet etc ...) Tanks DS. From: "Irina Grigorieva" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> Subject: Re: HELP DRIVER! Date: Wed, 16 Jan 2002 17:35:51 +0300 Hi, maybe an answer is in the EJB's narrowing a subset of Java language can be used: for instance, in Java Beans you cannot use static member etc. BR, Irina. - Original Message - From: "dav sem" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, January 16, 2002 5:17 PM Subject: Re: HELP DRIVER! > Hi, > > another info: > Jaguar Server 3.6.1 use Sun/jdk1.2 > and when I test Fop I use jdk1.3.1 > This can be an answer? > > DS. > > > > > >From: Jeremias Maerki <[EMAIL PROTECTED]> > >Reply-To: [EMAIL PROTECTED] > >To: [EMAIL PROTECTED] > >Subject: Re: HELP DRIVER! > >Date: Wed, 16 Jan 2002 13:23:47 +0100 > > > >What version do you use? As far as I know there's no Service class in > >current versions. You may need to upgrade. > > > >On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > > > Hi, > > > > > > I'm building EJB Component that perform a pdf document. > > > The EJB component is correctly installed in Jaguar Server (EJB > >Container). I > > > have successful set up the classpath > > > inside Jaguar server and when I try to instantiate Driver -> > > > > > > Driver driver = new Driver(); > > > > > > I obtain this error result: > > > > > > java.lang.NullPointerException > > >at org.apache.fop.apps.Service.providers(Driver.java:540) > > >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) > > >at org.apache.fop.apps.Driver.(Driver.java:189) > > > > > > Why?? > > > Previously I have build a pure java application > > > that perform a pdf document and I haven't never received this! > > > > > > HELP!!!1 > > > > > > Tanks in advance > > > > > > Davide > > > >Cheers, > >Jeremias Märki > > > >mailto:[EMAIL PROTECTED] > > > >OUTLINE AG > >Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern > >Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 > >Internet http://www.outline.ch > > > > > _ > Scarica GRATUITAMENTE MSN Explorer dall'indirizzo > http://explorer.msn.it/intl.asp. > > _ Prova MSN Messenger per conversare in linea con i tuoi amici: http://messenger.msn.it
Re: HELP DRIVER!
Hi, maybe an answer is in the EJB's narrowing a subset of Java language can be used: for instance, in Java Beans you cannot use static member etc. BR, Irina. - Original Message - From: "dav sem" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, January 16, 2002 5:17 PM Subject: Re: HELP DRIVER! > Hi, > > another info: > Jaguar Server 3.6.1 use Sun/jdk1.2 > and when I test Fop I use jdk1.3.1 > This can be an answer? > > DS. > > > > > >From: Jeremias Maerki <[EMAIL PROTECTED]> > >Reply-To: [EMAIL PROTECTED] > >To: [EMAIL PROTECTED] > >Subject: Re: HELP DRIVER! > >Date: Wed, 16 Jan 2002 13:23:47 +0100 > > > >What version do you use? As far as I know there's no Service class in > >current versions. You may need to upgrade. > > > >On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > > > Hi, > > > > > > I'm building EJB Component that perform a pdf document. > > > The EJB component is correctly installed in Jaguar Server (EJB > >Container). I > > > have successful set up the classpath > > > inside Jaguar server and when I try to instantiate Driver -> > > > > > > Driver driver = new Driver(); > > > > > > I obtain this error result: > > > > > > java.lang.NullPointerException > > >at org.apache.fop.apps.Service.providers(Driver.java:540) > > >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) > > >at org.apache.fop.apps.Driver.(Driver.java:189) > > > > > > Why?? > > > Previously I have build a pure java application > > > that perform a pdf document and I haven't never received this! > > > > > > HELP!!!1 > > > > > > Tanks in advance > > > > > > Davide > > > >Cheers, > >Jeremias Märki > > > >mailto:[EMAIL PROTECTED] > > > >OUTLINE AG > >Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern > >Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 > >Internet http://www.outline.ch > > > > > _ > Scarica GRATUITAMENTE MSN Explorer dall'indirizzo > http://explorer.msn.it/intl.asp. > >
Re: HELP DRIVER!
Hi, another info: Jaguar Server 3.6.1 use Sun/jdk1.2 and when I test Fop I use jdk1.3.1 This can be an answer? DS. From: Jeremias Maerki <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: HELP DRIVER! Date: Wed, 16 Jan 2002 13:23:47 +0100 What version do you use? As far as I know there's no Service class in current versions. You may need to upgrade. On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > Hi, > > I'm building EJB Component that perform a pdf document. > The EJB component is correctly installed in Jaguar Server (EJB Container). I > have successful set up the classpath > inside Jaguar server and when I try to instantiate Driver -> > > Driver driver = new Driver(); > > I obtain this error result: > > java.lang.NullPointerException >at org.apache.fop.apps.Service.providers(Driver.java:540) >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) >at org.apache.fop.apps.Driver.(Driver.java:189) > > Why?? > Previously I have build a pure java application > that perform a pdf document and I haven't never received this! > > HELP!!!1 > > Tanks in advance > > Davide Cheers, Jeremias Märki mailto:[EMAIL PROTECTED] OUTLINE AG Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 Internet http://www.outline.ch _ Scarica GRATUITAMENTE MSN Explorer dall'indirizzo http://explorer.msn.it/intl.asp.
Re: HELP DRIVER!
Hi, I use fop-0.20.1? The last version is fop-0.20.2RC In this version there is Service Class!! Tanks DS. From: Jeremias Maerki <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: HELP DRIVER! Date: Wed, 16 Jan 2002 13:23:47 +0100 What version do you use? As far as I know there's no Service class in current versions. You may need to upgrade. On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > Hi, > > I'm building EJB Component that perform a pdf document. > The EJB component is correctly installed in Jaguar Server (EJB Container). I > have successful set up the classpath > inside Jaguar server and when I try to instantiate Driver -> > > Driver driver = new Driver(); > > I obtain this error result: > > java.lang.NullPointerException >at org.apache.fop.apps.Service.providers(Driver.java:540) >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) >at org.apache.fop.apps.Driver.(Driver.java:189) > > Why?? > Previously I have build a pure java application > that perform a pdf document and I haven't never received this! > > HELP!!!1 > > Tanks in advance > > Davide Cheers, Jeremias Märki mailto:[EMAIL PROTECTED] OUTLINE AG Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 Internet http://www.outline.ch _ Prova MSN Messenger per conversare in linea con i tuoi amici: http://messenger.msn.it
Re: HELP DRIVER!
What version do you use? As far as I know there's no Service class in current versions. You may need to upgrade. On Wed, 16 Jan 2002 08:51:59 + dav sem wrote: > Hi, > > I'm building EJB Component that perform a pdf document. > The EJB component is correctly installed in Jaguar Server (EJB Container). I > have successful set up the classpath > inside Jaguar server and when I try to instantiate Driver -> > > Driver driver = new Driver(); > > I obtain this error result: > > java.lang.NullPointerException >at org.apache.fop.apps.Service.providers(Driver.java:540) >at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) >at org.apache.fop.apps.Driver.(Driver.java:189) > > Why?? > Previously I have build a pure java application > that perform a pdf document and I haven't never received this! > > HELP!!!1 > > Tanks in advance > > Davide Cheers, Jeremias Märki mailto:[EMAIL PROTECTED] OUTLINE AG Postfach 3954 - Rhynauerstr. 15 - CH-6002 Luzern Fon +41 (41) 317 2020 - Fax +41 (41) 317 2029 Internet http://www.outline.ch
HELP DRIVER!
Hi, I'm building EJB Component that perform a pdf document. The EJB component is correctly installed in Jaguar Server (EJB Container). I have successful set up the classpath inside Jaguar server and when I try to instantiate Driver -> Driver driver = new Driver(); I obtain this error result: java.lang.NullPointerException at org.apache.fop.apps.Service.providers(Driver.java:540) at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:258) at org.apache.fop.apps.Driver.(Driver.java:189) Why?? Previously I have build a pure java application that perform a pdf document and I haven't never received this! HELP!!!1 Tanks in advance Davide _ MSN Photos è il metodo più semplice per condividere e stampare le tue foto: http://photos.msn.it/Support/WorldWide.aspx
