What's the format of the datasource tag in jbosscmp-jdbc.xml

Question

Hi,
I made a CMP when I use Lomboz to generate the classes, and xml files, but I still don't know how to relate my CMP to datasource.
I thought may be I should configure the jbosscmp-jdbc.xml, because when I look in this file and found:
<defaults>
<datasource>PLEASE_MODIFY_THIS</datasource>
<datasource-mapping>PLEASE_MODIFY_THIS</datasource-mapping>
<preferred-relation-mapping>PLEASE_MODIFY_THIS</preferred-relation-mapping>
</defaults>
But I don't know how to "modify this", What do those tags mean? what are those for? and what are the Formats?
My database -- mySQL
datasouce xml file -- test-ds.xml:
<datasources>
<local-tx-datasource>
<jndi-name>jdbc/test</jndi-name>
<connection-url>jdbc:mysql://devsz-ma3.cn1.belton.com.hk:3306/test?useUnicode=true&characterEncoding=UTF-8</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>touchpanel</user-name>
<password>touchpanel</password>
</local-tx-datasource>
</datasources>
I need help, can you tell me some about that, thanks
next is my CMP entity bean:
package ejb.product;
import java.rmi.RemoteException;
import javax.ejb.EJBException;
import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.RemoveException;
* @ejb.bean name="Product"
*     jndi-name="ProductBean"
*     type="CMP"
*  primkey-field="productId"
*  schema="Product"
*  cmp-version="2.x"
* This is needed for JOnAS.
* If you are not using JOnAS you can safely remove the tags below.
* @jonas.bean ejb-name="Product"
*     jndi-name="ProductBean"
* @jonas.jdbc-mapping  jndi-name="jdbc/test" jdbc-table-name="FL_PRODUCT"
*  @ejb.persistence
*   table-name="FL_PRODUCT"
* @ejb.finder
*    query="SELECT OBJECT(a) FROM Product as a" 
*    signature="java.util.Collection findAll()" 
* @ejb.finder
*       query="SELECT OBJECT(a) FROM Product a where a.NAME = ?1" 
*       signature="java.util.Collection findByName(java.lang.String name)" 
* @ejb.finder
*       query="SELECT OBJECT(a) FROM Product a where a.DESCRIPTION = ?1" 
*       signature="java.util.Collection findByDescription(java.lang.String desc)" 
* @ejb.finder
*       query="SELECT OBJECT(a) FROM Product a where a.BASE_PRICE = ?1" 
*       signature="java.util.Collection findByBasePrice(double basePrice)" 
* @ejb.finder
*       query="SELECT OBJECT(a) FROM Product " 
*       signature="java.util.Collection findAllProducts()" 
* @ejb.finder
*       query="SELECT OBJECT(a) FROM Product a where a.BASE_PRICE > ?1" 
*       signature="java.util.Collection findExpensiveProduct(double maxPrice)" 
* * @ejb.finder
*       query="SELECT OBJECT(a) FROM Product a where a.BASE_PRICE < ?1" 
*       signature="java.util.Collection findCheapProduct(double minPrice)" 
* This is needed for JOnAS.
* If you are not using JOnAS you can safely remove the tags below.
* @jonas.finder-method-jdbc-mapping  method-name="findAll"
*     jdbc-where-clause=""
* @jonas.jdbc-mapping  jndi-name="jdbc/test"
*     jdbc-table-name="FL_PRODUCT"
public abstract class ProductBean implements EntityBean {
     protected EntityContext ectx;
      * The  ejbCreate method.
      * @ejb.create-method
     public java.lang.String ejbCreate(String productId, String name, String desc,double basePrice) throws javax.ejb.CreateException {
          // EJB 2.0 spec says return null for CMP ejbCreate methods.
          // TODO: YOU MUST INITIALIZE THE FIELDS FOR THE BEAN HERE.
          // setMyField("Something");
          System.out.println("Entering ProductBean.ejbCreate()");
          setProductId(productId);
          setName(name);
          setDescription( desc);
          setBasePrice(basePrice);
          System.out.println("Leaving ProductBean.ejbCreate()");
          return productId;
      * The container invokes this method immediately after it calls ejbCreate.
     public void ejbPostCreate(String productId, String name, String desc,double basePrice) throws javax.ejb.CreateException {
     * Returns the productId
     * @return the productId
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="PRODUCT_ID"
     *     sql-type="varchar"
     * @ejb.pk-field
     * @ejb.interface-method
     * This is needed for JOnAS.
     * If you are not using JOnAS you can safely remove the tags below.
     * @jonas.cmp-field-jdbc-mapping  field-name="productId"
     *     jdbc-field-name="PRODUCT_ID"
     public abstract java.lang.String getProductId();
     * Sets the productId
     * @param java.lang.String the new productId value
     * @ejb.interface-method
     public abstract void setProductId(java.lang.String productId);
     * Returns the name
     * @return the name
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="NAME"
     *     sql-type="varchar"
     * @ejb.interface-method
     * This is needed for JOnAS.
     * If you are not using JOnAS you can safely remove the tags below.
     * @jonas.cmp-field-jdbc-mapping  field-name="name"
     *     jdbc-field-name="NAME"
     public abstract java.lang.String getName();
     * Sets the name
     * @param java.lang.String the new name value
     * @ejb.interface-method
     public abstract void setName(java.lang.String name);
     * Returns the description
     * @return the description
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="DESCRIPTION"
     *     sql-type="varchar"
     * @ejb.interface-method
     * This is needed for JOnAS.
     * If you are not using JOnAS you can safely remove the tags below.
     * @jonas.cmp-field-jdbc-mapping  field-name="description"
     *     jdbc-field-name="DESCRIPTION"
     public abstract java.lang.String getDescription();
     * Sets the description
     * @param java.lang.String the new description value
     * @ejb.interface-method
     public abstract void setDescription(java.lang.String description);
     * Returns the basePrice
     * @return the basePrice
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="BASE_PRICE"
     *     sql-type="double"
     * @ejb.interface-method
     * This is needed for JOnAS.
     * If you are not using JOnAS you can safely remove the tags below.
     * @jonas.cmp-field-jdbc-mapping  field-name="basePrice"
     *     jdbc-field-name="BASE_PRICE"
     public abstract double getBasePrice();
     * Sets the basePrice
     * @param double the new basePrice value
     * @ejb.interface-method
     public abstract void setBasePrice(double basePrice);
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#ejbActivate()
     public void ejbActivate() throws EJBException, RemoteException {
          System.out.println("ejbActivate() called.");
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#ejbLoad()
     public void ejbLoad() throws EJBException, RemoteException {
          System.out.println("ejbLoad() called.");
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#ejbPassivate()
     public void ejbPassivate() throws EJBException, RemoteException {
          System.out.println("ejbPassivate() called.");
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#ejbRemove()
     public void ejbRemove() throws RemoveException, EJBException, RemoteException {
          System.out.println("ejbRemove() called.");
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#ejbStore()
     public void ejbStore() throws EJBException, RemoteException {
          System.out.println("ejbStore() called.");
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#setEntityContext(javax.ejb.EntityContext)
     public void setEntityContext(EntityContext arg0) throws EJBException, RemoteException {
          this.ectx = arg0;
     /* (non-Javadoc)
      * @see javax.ejb.EntityBean#unsetEntityContext()
     public void unsetEntityContext() throws EJBException, RemoteException {
          this.ectx = null;
}

Answer 1

you can try this
<defaults>
<datasource>java:/jdbc/test</datasource>
<datasource-mapping>MySQL</datasource-mapping>
<create-table>false</create-table>
<remove-table>false</remove-table>
</defaults>
JaimeS