RE: [Middlegen-user] Middlegen 2.0b1

Thu, 26 Sep 2002 15:28:39 -0700

Hi Marco,
 
In a mail long as this it's nice to be able to inline my comments in yours. That's not easy since your mail is in HTML, so would you please consider sending ASCII mail from now on? (Mailing list archives don't like HTML either). I have changed your <ul> to <ol>, and I'll refer to numbers.
 
You can get the CVS version from anywhere. Just download cvsgrab.sf.net. It works through firewalls and proxies.
 
  1. The purpose of ${unique-name} is to let n people build the sample, and then deploy to the same server. If you comment out the 1st definition of it, everybody will produce an ear where no names, jndi names or urls clash. (At least on a windows box, where the COMPUTERNAME env var is usually set). It's commented out, so if you don't modify it, it will equal "airline". I don't really understand your suggestion here. What's wrong with the way it is?
  2. I'm assuming people will use the airline sample as a template, not a home for all their applications. The best would be to use a property for each required jar, and let people store them where they want. Then they could have one local repository of jars and no need to copy jars from project to project. Maven enforces this approach, and in the future, the samples will too. I know it's not optimal now. I'll start with the property approach I think.
  3. A common tactic is to load the properties file from the user's home directory. There you can define all your globals. In projects where people share environments, the location of the global properties file can be some well-defined place in your source code repository.
  4. Good point. Very easy. Velocity variables can be used here. What you want is in ${plugin.interfacepackage}.
  5. Yes it should. Fixed.
  6. Hehe. So it's better when it's hardcoded in a differen place? Ok. changed.
More..
 
  1. Sorry, I can't. I haven't the faintest knowledge about Oracle. -But if someone sends it to us, we'll add it of course.
  2. Yes, in the GUI. There is also an fr about more global typemappings:
    http://sourceforge.net/tracker/index.php?func=detail&aid=607975&group_id=36044&atid=415993
  3. Does deprecation stop compilation? That's news to me. Anyway, deprecated is bad. -But I don't understand what you mean. Can you be more specific? File a bug report if it's a bug.
Your remarks make a lot of sense. I hope some of my answers do too. I love detailed feedback like this. Keep it up!
 
Thanks,
Aslak
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Marco de Booy
Sent: 26. september 2002 21:04
To: [EMAIL PROTECTED]
Subject: [Middlegen-user] Middlegen 2.0b1

Hello,

First of all I am glad to have the new version at my hands. I can not get the CVS versions so I need to wait before a new release is brought out.
I worked for 3 days with MySQL 4.0 and JBoss 3.0/Tomcat 4.0.4. This combination gave me errors on the EJB-QL for the flight.reservation SQL. I have no idea to go around it. I also tried it with 1 simple 3 fields table (PK which is an autosequence and 2 character fields not null). The insert struts form gave me the error that the create was not present. It was the create with only the 2 character fields.
Fortunately I also can use Oracle/Weblogic. Here I got the example working after a long while. I have, besides questions on the MySQL/JBoss/Tomcat side, a few remarks.
  1. In my opinion the ${unique.name} should be the one that you use for your java classes (com.java.something) and the ${name} for the name of the application components (ear, jar, war). In the build file they are not used that way. Maybe this can change.
  2. If I want to generate multiple applications I always need to have a full set of JARs in the lib directory. Maybe it is better to put this directory in the middlegen root. This way only one set is needed.
  3. Perhaps the same thing can be said for the build.properties.
  4. In the cmp20-<EJB>-class-comments.txt the class is hard-coded. Is there a way that it can be set to the interfacepackage?
  5. In the middlegen task in the middlegen tag the schema attribute is empty. Shouldn't this be ${database.schema}?
  6. In the ejbdoclet task in the weblogic and jboss tag the datasource attribute is 'hard-coded'. Shouldn't this be set in the weblogic.xml and jboss.xml config file? The datasource is also used in the middlegen task/middlegen tag.
Some questions are:
  1. Can you put in an example for an Oracle Sequence or an autoincrement primary key?
  2. A byte is used for a tiny int in MySQL. This causes problems when the field contains a NULL value. Can this be set to an other type?
  3. When I have a date as a primary key there is a problem with some methods. They use the predecated method java.sql.Date(String) and the compilation stops. Why isn' t the same function used as for the 'normal' date fields?
I hope that these remarks make any sense and be of help.

Marco de Booy

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