You are right, that is a bad error being thrown. But, my question is,
are you trying to load the EepromCell directly? Are you trying to do
something like:
db.load(EepromCell.class, <some-id>)
Because that isn't going to work. The depends attribute brings with
the fact that this object will never standalone, and hence, never be
loaded by itself.
But assuming you are not doing this. Try re-arranging the mappings so
that the parents are first, then the children (dont believe this
matters, but its worth a shot). I've always set my mappings up this
way and have ever had a problem. Like I said, everything appears to be
setup correctly.
Can you paste the whole stacktrace so we can get line numbers. Would
at least like to clean up the error report for a bit better
description. :)
-Nick
On Tue, 1 Feb 2005 16:10:12 +0100, Aziz Hammadi <[EMAIL PROTECTED]> wrote:
>
> Here is the error message I get:
>
> org.exolab.castor.jdo.DatabaseNotFoundException: Nested error:
> org.exolab.castor.mapping.MappingException: Depends not
> [EMAIL PROTECTED] EepromCell:
> Nested error: org.exolab.castor.mapping.MappingException: Depends not
> [EMAIL PROTECTED] EepromCell
>
> The exception is thrown while trying to get dependent classes. I
> followed it into the castor source code. It is badly described through
> a DatabaseNotFoundException. It is irritating.
> The connection to the database does exist. As I mentioned eralier
> mapping just one dependency level works.
>
>
> On Tue, 1 Feb 2005 09:50:26 -0500, Nick Stuart <[EMAIL PROTECTED]> wrote:
> >
> > That looks as though its setup correctly, so what is exactly is the
> > error that comes up? Or the functionality that isn't working? Is it
> > generating a stacktrace or is it just not behaving as expected? Again,
> > this setup should work, it might just depend on what you are looking
> > for it to do.
> >
> > -Nick
> >
> >
> > On Tue, 1 Feb 2005 15:33:00 +0100, Aziz Hammadi <[EMAIL PROTECTED]> wrote:
> > >
> > > Sorry Nick! that was a copy-and-paste mistake. The cell depends on
> > > Sector but it does not work. Here is my real xml file based on the
> > > folowing model:
> > >
> > > Eeprom 1--------------------* EepromBlock 1--------------------*
> > >
> > > <class name="EepromCell" identity="id" key-generator="IDENTITY"
> > > depends="EepromBlock">
> > > <map-to table="eepromcell"/>
> > > <field name="id" type="integer">
> > > <sql name="id" type="integer"/>
> > > </field>
> > > <field name="name" type="string" required="true"
> > > transient="false"
> > > direct="false">
> > > <sql name="name" type="char"/>
> > > </field>
> > > <field name="value" type="string" required="true"
> > > transient="false"
> > > direct="false">
> > > <sql name="value" type="char"/>
> > > </field>
> > > <!-- reference to the parent -->
> > > <field name="eepromBlock" type="EepromBlock"
> > > required="true"
> > > transient="false" direct="false">
> > > <sql name="EepromBlock_Id"/>
> > > </field>
> > > </class>
> > >
> > > <class name="EepromBlock" identity="id" key-generator="IDENTITY"
> > > depends="Eeprom">
> > > <map-to table="eepromblock"/>
> > > <field name="id" type="integer">
> > > <sql name="id" type="integer"/>
> > > </field>
> > > <field name="number" type="integer">
> > > <sql name="number" type="integer"/>
> > > </field>
> > > <!-- reference to the parent -->
> > > <field name="eeprom" type="Eeprom" required="true"
> > > transient="false"
> > > direct="false">
> > > <sql name="Eeprom_Id"/>
> > > </field>
> > > <!-- reference to the children-->
> > > <field name="eepromCell"
> > > type="EepromCell" collection="array"
> > > required="true">
> > > <sql many-key="EepromBlock_id"/>
> > > </field>
> > > </class>
> > > <class name="Eeprom" identity="id" key-generator="IDENTITY">
> > > <map-to table="eeprom"/>
> > > <field name="id" type="integer">
> > > <sql name="id" type="integer"/>
> > > </field>
> > > <!-- reference to the children-->
> > > <field name="eepromBlock"
> > > type="EepromBlock" collection="array"
> > > required="true">
> > > <sql many-key="Eeprom_id"/>
> > > </field>
> > > </class>
> > >
> > >
> > > On Tue, 1 Feb 2005 08:47:32 -0500, Nick Stuart <[EMAIL PROTECTED]> wrote:
> > > >
> > > > Shouldnt the cell contain its parent sector, and not the hard disk? So
> > > > you would have something like:
> > > > <class name="Cell" depends="Sector">
> > > > <field name="sector type="Sector">
> > > > <sql name="sector_Id"/>
> > > > </field>
> > > > </class>
> > > >
> > > > This would make more sense in the hierarchy to have it setup this way.
> > > > I've been able to use several levels of dependencies with out any
> > > > issues. At least 3 levels deep, and more. I always have a reference
> > > > from the parent (HardDisk) to the children (Sectors) and the other way
> > > > as well (from the children back to the parent). You didn't supply the
> > > > full mapping so I dont know if you have this or not.
> > > >
> > > > -Nick
> > > >
> > > > Be something
> > > > On Tue, 1 Feb 2005 12:43:59 +0100, Aziz Hammadi <[EMAIL PROTECTED]>
> > > > wrote:
> > > > >
> > > > > I have the following model:
> > > > >
> > > > > HardDisk 1 ------------* Sector 1 ------------- * Cell
> > > > >
> > > > > 1) mapping
> > > > > HardDisk 1 --------------- * Sector
> > > > > using this :
> > > > >
> > > > > <class name="Sector" depends="HardDisk">
> > > > > <field name="hardDisk" type="HardDisk">
> > > > > <sql name="hardDisk_Id"/>
> > > > > </field>
> > > > > </class>
> > > > >
> > > > > <class name="Cell" depends="Sector">
> > > > > <field name="hardDisk" type="HardDisk">
> > > > > <sql name="sector_Id"/>
> > > > > </field>
> > > > > </class>
> > > > >
> > > > > works.
> > > > >
> > > > > 2) mapping
> > > > > Sector 1 --------------- * Cell
> > > > > works using a similar mapping.
> > > > >
> > > > > 3) While trying to mapp
> > > > > HardDisk 1 ------------* Sector 1 ------------- * Cell
> > > > > all together I get this exception:
> > > > >
> > > > > org.exolab.castor.mapping.MappingException: Depends not
> > > > > [EMAIL PROTECTED] Cell
> > > > >
> > > > > The mapping file looks like this (simple):
> > > > >
> > > > > <class name="HardDisk" >
> > > > > </class>
> > > > >
> > > > > <class name="Sector" depends="HardDisk">
> > > > > <field name="hardDisk" type="HardDisk">
> > > > > <sql name="hardDisk_Id"/>
> > > > > </field>
> > > > > </class>
> > > > >
> > > > > <class name="Cell" depends="Sector">
> > > > > <field name="hardDisk" type="HardDisk">
> > > > > <sql name="sector_Id"/>
> > > > > </field>
> > > > > </class>
> > > > >
> > > > > Does castor provide dependency recursion? I tryed to look at some
> > > > > mapping files of some open source code project using castor but none
> > > > > of them uses such a hierarchical structure
> > > > > despite of the fact that this is a very used model!
> > > > > I use castor-0.9.6-RC3.jar
> > > > >
> > > > > cheers!
> > > > >
> > > > > -----------------------------------------------------------
> > > > > If you wish to unsubscribe from this mailing, send mail to
> > > > > [EMAIL PROTECTED] with a subject of:
> > > > > unsubscribe castor-user
> > > > >
> > > >
> > > > -----------------------------------------------------------
> > > > If you wish to unsubscribe from this mailing, send mail to
> > > > [EMAIL PROTECTED] with a subject of:
> > > > unsubscribe castor-user
> > > >
> > >
> > >
> > > -----------------------------------------------------------
> > > If you wish to unsubscribe from this mailing, send mail to
> > > [EMAIL PROTECTED] with a subject of:
> > > unsubscribe castor-user
> > >
> >
> > -----------------------------------------------------------
> > If you wish to unsubscribe from this mailing, send mail to
> > [EMAIL PROTECTED] with a subject of:
> > unsubscribe castor-user
> >
>
> -----------------------------------------------------------
> If you wish to unsubscribe from this mailing, send mail to
> [EMAIL PROTECTED] with a subject of:
> unsubscribe castor-user
>
-----------------------------------------------------------
If you wish to unsubscribe from this mailing, send mail to
[EMAIL PROTECTED] with a subject of:
unsubscribe castor-user
