[Xdoclet-user] XDoclet and EJB with CMR -- Newbie

[Steven Nakhla]

I'm new to EJB development, particularly using XDoclet.  What I would like is to implement a simple demo application, an employee address book.  I'm using JBoss 3.2.2 with Eclipse 2.1.1 as my IDE.  Also, I used the Lomboz plugin to do the initial bean development.  I have the latest XDoclet installed, as well.

 

My first bean, EmployeeInfoBean, is declared as follows:

 

/**

* @ejb.bean name="EmployeeInfo"

* jndi-name="EmployeeInfoBean"

* type="CMP"

* primkey-field="employeeID"

* schema="MyEmployeeInfo"

* cmp-version="2.x"

*

* @ejb.persistence

* table-name="employee"

*

* @ejb.finder

* query="SELECT OBJECT(a) FROM MyEmployeeInfo as a"

* signature="java.util.Collection findAll()"

*

**/

public abstract class EmployeeInfoBean implements EntityBean {

             <misc stuff here>

}

 

I have a second bean, EmployeeAddressBean, declared in a similar manner:

/**

* @ejb.bean name="EmployeeAddress"

* jndi-name="EmployeeAddressBean"

* type="CMP"

* primkey-field="addressID"

* schema="MyEmployeeAddress"

* cmp-version="2.x"

*

* @ejb.persistence

* table-name="address"

*

* @ejb.finder

* query="SELECT OBJECT(a) FROM MyEmployeeAddress as a"

* signature="java.util.Collection findAll()"

*

**/

public abstract class EmployeeAddressBean implements EntityBean {

    <more misc stuff>

}

When I run XDoclet, it creates the expected interfaces and util classes.  What I would like to do, however, is declare methods in my Employee Info class to associate an address with an employee.  Something like this:

public void setAddress(EmployeeAddress address);

public EmployeeAddress getAddress();

I would like to use CMR to accomplish this.  I want it to be a one-one unidirectional relationship.  The question is, how can I do this with XDoclet?  Can someone please explain to me what tags I need to have in my code to accomplish this?  I've tried a couple of times, but I end up with null exceptions, and there is no association created in my database.

Can anyone help me out with this?  Thanks in advance!

 

Steve Nakhla

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