Hello,
How do you get a reference to your primary key using your method below?
sesques wrote : Normally, this should work and is compliant wth the EJB spec.
| (But if not, keep your version as well, it will be a software mystery ;-)
|
|
| | /**
| | * The Employee Entity Bean
getPrimaryKey() on EJB[Local]Object or EntityContext.
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With MySQL you can have AutoIncrement Primary Key Fields without using Unknown-PK's
BUT you have to let JBoss create the Database (or make sure you create it correctly to
match what JBoss is looking for.
The key is to dec;are your PK in jbosscmp-jdbc.xml as
auto-increment/
and have the
Sesques --
I've tried quite a number of different variations on the xdoclet tags, and each
variation has its problems. Here are some samples of what seem to be perverse
interactions between CMR and unknownpk:
00:40:52,984 INFO [EjbModule] Deploying FaqCategoryEJB
| 00:40:52,984 INFO
Hi hpx,
I confess having no interrest on Nukes, so I cannot help you about it.
About unknow-pk and CMR, of course unknown-pk can be used by relationships.
I use it myself without problem, declaring unknow-pk field-name as related-pk-field on
a jboss relation:
Example:
My first entity bean
Hi --
Has anybody noticed Unknown-PK Problems, with XDoclet and _CMR_?
Are there known-bugs regarding CMR interaction with Unknown-PK that have already been
posted against JBoss3.2.3?
Anybody know of relevant forum/wiki URLs?
Or... has anybody gotten Unknown-PK going with XDoclet and _CMR_,
Unknow-pk got nothing to do with CMR fields
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---
Yes, CMR and unknown-pk are distinct concepts, but they could interact in
practice because CMR creates foreign key relationships and thus uses the pk of the
entity at the other end of the relationship.
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That are good points.
In fact, now that you tell it, I remember to have read the object things and am now
wondering, why this works. Well, it does. Even though the ejbCreate is Integer.
Strange...
I had an error, with not declaring a pk-field, or having a pk-field declared, which is
no
Normally, this should work and is compliant wth the EJB spec.
(But if not, keep your version as well, it will be a software mystery ;-)
| /**
| * The Employee Entity Bean handles the information of an employee.
| * @author Karsten Jahn (OrangeOak)
| * @version 1.0
| *
| *
Well... what can I say... this works perfectly as well... thank you very much!
Being within the EJB spec is a bit more sedative. ;)
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Yes, it works perfect by now. Well, in fact, I do have some ForeignKey Problems, but
that's a different story... ;)
This is the solution:
ejb-jar.xml
| entity
| description![CDATA[The Employee Entity Bean saves every
Employee.]]/description
|
Normally, when the key is auto-generated byt the database,
the prim-key-class should be java.lang.Object without declaring the primkey-field
(like in your first version of ejb-jar.xml)
+ No getters and setters defined on the CMP field employeeID (because you must use the
findbyPrimaryKey method
For MySQL,
you mus set
entity-command name=mysql-get-generated-keys /
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I do have it - in the defaults section
entity-command name=mysql-get-generated-keys
class=org.jboss.ejb.plugins.cmp.jdbc.keygen.JDBCMySQLCreateCommand/
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And btw The Primary key is working correctly without using the Unknown-PK We are using
the
mysql-connector-java-3.1.1-alpha-bin.jar
and configuring the settings as follows
ejb-nameTransTypeBean/ejb-name
Hi,
So, is your problem solved ?
I really don't understand how you can make a database generated key without an unknown
primary key. I don't know mySQL, just Oracle and MSSQL, and I have many projecs
working with database generated keys using the unknown-pk.
Are you sure it is the database
Hi,
You are missing a entity-command name tag in your jbosscmp-jdbc.xml.
This tag is database dependent (used to get the last generated primary key. For MSSQL,
you must set
entity-command name=mssql-fetch-key /
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