Comments on: accessing as400 databases with Ruby, Java, and the RubyJavaBridge http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/ Louisville-based Web Development & Software Engineering Tue, 10 Jan 2012 08:34:18 -0500 hourly 1 http://wordpress.org/?v=3.1 By: Justin Hamilton http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-59182 Justin Hamilton Fri, 11 Apr 2008 15:50:00 +0000 http://blogs.missiondata.com/?p=46#comment-59182 I've been using rails with iseries at my facility for about a year now without java. For me, the key was setting up unixodbc, rails-odbc, and the IBM iSeriesAccess drivers. It works great. My only issue has been with BLOB columns. I've not been able to insert file data into them with Rails though I've never had this issue with foxpro or .net. Does anyone know the proper format for the binary string for the Iseries? I've tried "blob('value')","blob(x'value')","blob(value)",'value',value, {'value'}, {value} value of course being the binary string. I hope you guys may have solved this issue already. I’ve been using rails with iseries at my facility for about a year now without java. For me, the key was setting up unixodbc, rails-odbc, and the IBM iSeriesAccess drivers.

It works great.

My only issue has been with BLOB columns. I’ve not been able to insert file data into them with Rails though I’ve never had this issue with foxpro or .net. Does anyone know the proper format for the binary string for the Iseries? I’ve tried “blob(‘value’)”,”blob(x’value’)”,”blob(value)”,’value’,value, {‘value’}, {value}
value of course being the binary string. I hope you guys may have solved this issue already.

]]> By: Eric http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-16845 Eric Fri, 30 Mar 2007 14:14:31 +0000 http://blogs.missiondata.com/?p=46#comment-16845 The IBM_DB Rails Plugin and Ruby gem provide Rails/Ruby interfaces for IBM Data Servers. The Ruby adapter and driver are developed and supported by IBM. The adapter and driver currently supports DB2 on Linux/Unix/Windows, DB2 for i5/OS and DB2 for zOS. Check it out..... http://rubyforge.org/frs/?group_id=2361 The IBM_DB Rails Plugin and Ruby gem provide Rails/Ruby interfaces for IBM Data Servers. The Ruby adapter and driver are developed and supported by IBM. The adapter and driver currently supports DB2 on Linux/Unix/Windows, DB2 for i5/OS and DB2 for zOS.

Check it out…..

http://rubyforge.org/frs/?group_id=2361

]]> By: Chinesco http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-10339 Chinesco Thu, 25 Jan 2007 22:00:24 +0000 http://blogs.missiondata.com/?p=46#comment-10339 Hello, I just found this thread, and even with the latest versions of RJB and Ruby the prepareStatement still hangs. Does anyone found a solution for this? Thank you Hello,

I just found this thread, and even with the latest versions of RJB and Ruby the prepareStatement still hangs.

Does anyone found a solution for this?

Thank you

]]> By: Kendall http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-160 Kendall Fri, 09 Jun 2006 15:11:45 +0000 http://blogs.missiondata.com/?p=46#comment-160 Well, I finally got to try this on the machine in Germany and the results were the same. Except, of course, the error message was in German. ;) So, I guess what we're left with is an XP or Windows issue. Quite odd. Well, I finally got to try this on the machine in Germany and the results were the same. Except, of course, the error message was in German. ;) So, I guess what we’re left with is an XP or Windows issue. Quite odd.

]]> By: Kendall http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-119 Kendall Fri, 12 May 2006 17:25:32 +0000 http://blogs.missiondata.com/?p=46#comment-119 Curiouser, indeed! Still hangs when run from the command line... I did apply for an account on the machine in Germany. Maybe if I connect to it... The WinXP setup of rjb was problematic, especially for a ruby-newbie like myself. The "ruby setup.rb config" failed while trying to locate the jni.h file, which I know is on my machine right where it should be. Another helpful soul had posted similar problems. I contacted him and he let me download the rjb.so file for ruby 1.8.4 from his site. I was then able to run the "ruby setup.rb install" which (I think) put everything in the right place. As I say, rjb works with everything I've tried so far, except talking to the 400. Darn. Curiouser, indeed! Still hangs when run from the command line… I did apply for an account on the machine in Germany. Maybe if I connect to it…

The WinXP setup of rjb was problematic, especially for a ruby-newbie like myself. The “ruby setup.rb config” failed while trying to locate the jni.h file, which I know is on my machine right where it should be. Another helpful soul had posted similar problems. I contacted him and he let me download the rjb.so file for ruby 1.8.4 from his site. I was then able to run the “ruby setup.rb install” which (I think) put everything in the right place. As I say, rjb works with everything I’ve tried so far, except talking to the 400. Darn.

]]> By: mission_data http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-118 mission_data Fri, 12 May 2006 16:15:56 +0000 http://blogs.missiondata.com/?p=46#comment-118 Curiouser and curiouser. Let me know if it runs outside of RDT. How'd you build your RJB for Windows, btw? I haven't tried yet. I have googled instructions for crosscompilation of Ruby extensions using MinGW and have an old Visual C++ install I could use, but haven't gotten off my duff to actually do it yet. FWIW, you could probably get the pure java implementaiton going in Eclipse if you changed your Run command to include "-Djdbc.drivers=com.ibm.as400.access.AS400JDBCDriver" as a VM parameter. Same diff as registerDrive tho. Curiouser and curiouser. Let me know if it runs outside of RDT.

How’d you build your RJB for Windows, btw? I haven’t tried yet. I have googled instructions for crosscompilation of Ruby extensions using MinGW and have an old Visual C++ install I could use, but haven’t gotten off my duff to actually do it yet.

FWIW, you could probably get the pure java implementaiton going in Eclipse if you changed your Run command to include “-Djdbc.drivers=com.ibm.as400.access.AS400JDBCDriver” as a VM parameter. Same diff as registerDrive tho.

]]> By: Kendall http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-117 Kendall Thu, 11 May 2006 21:23:18 +0000 http://blogs.missiondata.com/?p=46#comment-117 I hadn't thought of that. But I just tried and it worked fine. Although I did need to insert : "DriverManager.registerDriver(new com.ibm.as400.access.AS400JDBCDriver());" because it threw the exception "no suitable driver". Then it executed successfully and returned the expected result. However, I am trying to execute from the RDT perspective in Eclipse. Maybe that's my problem. I'll try from outside the IDE and see what happens. Thanks for your response. Kendall I hadn’t thought of that. But I just tried and it worked fine. Although I did need to insert :
“DriverManager.registerDriver(new com.ibm.as400.access.AS400JDBCDriver());” because it threw the exception “no suitable driver”. Then it executed successfully and returned the expected result. However, I am trying to execute from the RDT perspective in Eclipse. Maybe that’s my problem. I’ll try from outside the IDE and see what happens. Thanks for your response.

Kendall

]]> By: darrend http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-113 darrend Thu, 11 May 2006 16:34:24 +0000 http://blogs.missiondata.com/?p=46#comment-113 I'm not sure, as I haven't seen that situation before. But I haven't run the bridge under windows yet either. Out of curiosity, did you try the pure java code I posted and did it cause the same problem? I'm assuming it would. I’m not sure, as I haven’t seen that situation before. But I haven’t run the bridge under windows yet either.

Out of curiosity, did you try the pure java code I posted and did it cause the same problem? I’m assuming it would.

]]> By: Kendall http://www.missiondata.com/blog/system-administration/46/accessing-as400-databases-with-ruby-java-and-the-rubyjavabridge/comment-page-1/#comment-112 Kendall Thu, 11 May 2006 13:54:31 +0000 http://blogs.missiondata.com/?p=46#comment-112 darrend, I share your entusiasm for this bridge. Following your example I have been able to make use of Java classes that I would not want to rewrite in Ruby if I don't have to, and it worked beautifully. I am having some trouble, though, accessing our AS/400's in the same way you do in your examples. It appears I am able to make the JDBC connection (I can see it in the QZDASOINIT job log) but the program just hangs at that point and I have to cancel it. A "Host server error" is recorded in the job log: "Error code 3426 was received while processing the recv() - length function for the host server communications." My logging suggests that the conn.prepareStatement never happens. I'm suspicious that it might be a CCSID thing, but nothing I have seen lets me work around that. My client is XP, sp2. Did you run into anything like this in your travels? Thanks. darrend,

I share your entusiasm for this bridge. Following your example I have been able to make use of Java classes that I would not want to rewrite in Ruby if I don’t have to, and it worked beautifully. I am having some trouble, though, accessing our AS/400′s in the same way you do in your examples. It appears I am able to make the JDBC connection (I can see it in the QZDASOINIT job log) but the program just hangs at that point and I have to cancel it. A “Host server error” is recorded in the job log: “Error code 3426 was received while processing the recv() – length function for the host server communications.” My logging suggests that the conn.prepareStatement never happens. I’m suspicious that it might be a CCSID thing, but nothing I have seen lets me work around that. My client is XP, sp2. Did you run into anything like this in your travels? Thanks.

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