Re: [castor-dev] [Fwd: Re: Varchar length support?]

Wed, 10 Jun 2009 12:17:01 -0700

Hi Werner,

I would add new optional attributes with same namespace to our current mapping.

at map-to element consistent with table annotation of JPA 2.0 spec
      <xsd:attribute name="schema"         type="xsd:NMTOKENS"  use="optional" default=""/>

at sql element consistent column annotation of JPA 2.0 spec
      <xsd:attribute name="length"              type="xsd:integer"   use="optional" default="255"/>
      <xsd:attribute name="precision"          type="xsd:integer"   use="optional" default="0"/>
      <xsd:attribute name="scale"                 type="xsd:integer"   use="optional" default="0"/>
      <xsd:attribute name="nullable"            type="xsd:boolean"   use="optional" default="true"/>

If this is fine with you I can support Adis how to implement this feature or go for this myself. If you prefer the solution to have a different namespace for these new attributes, you will at least need to provide some initial code for us to start how this should be implemented.

Regards
Ralf

Werner Guttmann schrieb: 
Hi Ralf,

I have just re-read the complete issue .. ;-). How do we want to
approach this ?

Werner

Ralf Joachim wrote:
  
Forwarding this discussion to dev list as we need to know Werner's point
of view.

Ralf


------------------------------------------------------------------------

Subject:
Re: Varchar length support?
From:
"Adis Corovic" <a...@live.nl>
Date:
Tue, 2 Jun 2009 15:35:03 +0200
To:
"Ralf Joachim" <ralf.joac...@syscon.eu>

To:
"Ralf Joachim" <ralf.joac...@syscon.eu>


Ralf,

I'm sorry that I am bothering you but still I have some questions:
I have read here (http://jira.codehaus.org/browse/CASTOR-1527) that there is some kind of patch? Does this patch works?

Can you give an estimate when these attributes, like length and defaults, will be available by DDL gen? ( I'am not a good programmer otherwise i would give it a try.  )

Regards,

Adis


From: Ralf Joachim 
Sent: Tuesday, June 02, 2009 11:12 AM
To: Adis Corovic 
Subject: Re: Varchar length support?


Hi Adis,

there are a few issues in jira about improvements and refactorings required at DDLGEN. Take a look at:

http://jira.codehaus.org/secure/IssueNavigator.jspa?reset=true&mode=hide&pid=10891&sorter/order=DESC&sorter/field=priority&resolution=-1&component=12341

One of this issues is a feature request to add specification of field length to our mapping: See:

http://jira.codehaus.org/browse/CASTOR-1527

According to this you are not able to specify length of varchar fields in mapping yet.

Regards
Ralf


Adis Corovic schrieb: 
  Hi Ralf ,

  I was examing the samples an do some testing and have a question regarding the length of varchar datattype. I could find out how to give the length of my varchar field in mappin.xml:
 <class name="Mijn test2">
        <map-to table="Mijn Tabel2"/>
        <field name="Code" type="Integer" required="true" identity="true">
            <sql name="Code"/>
        </field>
        <field name="Naam" type="varchar" required="true">
            <sql name="Naam"/>
        </field>
 </class>It always takes my default length (256), but I want to second column to be varchar(10). How can I accomplish this?Can you please reply to this?Sorry that I am disturbing you..Regards,Adis 

  From: Ralf Joachim 
  Sent: Friday, May 29, 2009 3:35 PM
  To: Adis Corovic 
  Subject: Re: Information about Castor DDL Gen


  Hi Adis,

  at the moment DDLGEN does only support generation of DDL scripts form mapping files. While we have already added support to read mapping informations from annotated java classes to our persistence engine, using this annotations to generate DDL scripts is not available yet. Having said that I would not see a chance to generate usefull DDL scripts from java classes without annotations.

  Regards
  Ralf

  Adis Corovic schrieb: 
    Hello Ralf,

    I have read that you are one of the contributors of Castor DDL Generator.
    Therefore I want to ask you something;
    Is it possible to generate DDL code from something else than a mapping file of XML?
    The reason I am asking this: for my study I chosen DDL generation as a thema. So I am investigating how DDL genration could be established.

    Is it possible to generate from a Java Class DDL script trough your DDL generator?

    Thanks in advance,
    Best regards,

    Adis Corovic
    Nijmegen, The Netherlands




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