Naoko Hamamoto's Weblog

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20061218 Monday December 18, 2006

Hibernate with Creator

It has been a long while since I posted something on my blog. And it will be a while again since I am taking a personal leave in January for a while, so I decided to capture my work here, before I forget what I was working on :)

I have been working on a test case management tool for internal use using Creator 2 Update 1. Yes I am aware of the Visual Web Pack, and we may switch over some day - but for now, we are sticking with Creator 2.

We are using Hibernate for database object/relational persistence - and it's cool! There is a very nice tutorial available for Creator, which made our lives so much easier. Thanks to the doc team for creating such a great tutorial.

Using Hibernate With the Sun Java Studio Creator IDE

Due to various reasons, we ended up writing most of the xml files by hand, but I have learned that there are a few plugins that are available for both NetBeans and Eclipse that will generate the configuration files automatically. We have not had a chance to spend a lot of time investigating them yet, but if you have, I would appreciate it if you can let us know what you think of the following plugins.

For NetBeans -

1. Hibernate plugin for NetBeans 5.0
2. Plug-in Hibernate Support

and for Eclipse -

1. Hibernate Synchronizer

Posted by naoko ( Dec 18 2006, 04:58:13 PM PST ) Permalink Comments [0]

20060327 Monday March 27, 2006

Creator demo on how to create a multi-language application

I created a flash demo a while ago on how to create a multi-language application using Creator. It is based on Creator 2 EA2, but most of the steps should be the same/very similar to the FCS version.

Click on this link to start the demo. Enjoy!

I used Wink to create this demo. Check it out, it is a very neat program. I can even localize my demo. If there are some interests, I may localize into Japanese :)

Any comments, suggestions, ideas for demos are very welcome!

Posted by naoko ( Mar 27 2006, 05:34:31 PM PST ) Permalink Comments [6]

20060202 Thursday February 02, 2006

Creator runs out of disk space with 40GB???

The other day, I was using the newly released Java Studio Creator 2 to create a web application for my team on Sun Blade Workstation. I was simply creating a prototype, so that my team can see how the GUI will look and feel and navigate.

After creating five simple pages, I was running into problems with Mozilla not starting when I tried to deploy the application. It was exhibiting some odd behavior; sometimes Mozilla came up, other times it did not. I then used a browser on my PC to access the application - it failed. Looking through server.log, I found out that I was running into

java.io.IOException: Not enough space
       at java.lang.UNIXProcess.forkAndExec(Native Method)
       at java.lang.UNIXProcess.(UNIXProcess.java:53)

What do you mean that I don't have enough space? I have more than 40GB of space available...! Memory was not an issue either, so I was stuck.

Then a help from heaven (thanks Steve!) came. He told me to check my free swap space on the system. Sure enough, when I added 1 GB of additional swap space, the problem went away!

To temporarily add a swap space to your system, you do: 

% su
Password:
# swap -l
swapfile             dev  swaplo blocks   free
/dev/dsk/c0t0d0s1   136,9      16 1052624 149504
# mkfile 250m /var/moreswap
# swap -a /var/moreswap
# swap -l
swapfile             dev  swaplo blocks   free
/dev/dsk/c0t0d0s1   136,9      16 1052624 137680
/var/moreswap         -       16 511984 511984

If you see a problem similar to this, it is worth trying this to see if it helps.

Posted by naoko ( Feb 02 2006, 04:02:00 PM PST ) Permalink Comments [3]


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