Hi Fei:
Actually, I am re-writing the code in Richard
Monson-Haefel's book to be EJB2.0 compilant. I have
changed a few things like CabinPK to be just a
java.lang.String. I also had to define certain methods
as abstract as required by EJB2.0. But anyways I am
sending the files with all the xml descriptors.
Lemme know if you think there is anything wrong.
I am sending it over the mailing list in case anyone
else is looking at the same problem.
Thanks,
Devand
------------------
package com.titan.cabin;
import java.rmi.RemoteException;
public interface Cabin extends javax.ejb.EJBObject
{
public String getName() throws RemoteException;
public void setName(String str) throws
RemoteException;
public int getDeck_level() throws RemoteException;
public void setDeck_level(int level) throws
RemoteException;
public int getShip_id() throws RemoteException;
public void setShip_id(int sp) throws
RemoteException;
public int getBed_count() throws RemoteException;
public void setBed_count(int be) throws
RemoteException;
public String getId() throws RemoteException;
public void setId(String ID) throws
RemoteException;
}
-------------
package com.titan.cabin;
import javax.ejb.EntityContext;
//public class CabinBean implements
javax.ejb.EntityBean
abstract public class CabinBean implements
javax.ejb.EntityBean
{
public String ejbCreate(int id)
{
setId(id+"");
// I have mad the primary key to be a String! So have
to return
// it in ejbCreate!
return getId();
}
public void ejbPostCreate(int id)
{
//Nothing required here...
}
abstract public String getName();
abstract public void setName(String str);
abstract public int getShip_id();
abstract public void setShip_id(int id);
abstract public int getBed_count();
abstract public void setBed_count(int count);
abstract public int getDeck_level();
abstract public void setDeck_level(int level);
abstract public String getId();
abstract public void setId(String id);
/*
public String getNAME()
{
return name;
}
public void setNAME(String str)
{
name = str;
}
public int getSHIP_ID()
{
return ship;
}
public void setSHIP_ID(int sp)
{
ship = sp;
}
public int getBED_COUNT()
{
return bedCount;
}
public void setBED_COUNT(int bc)
{
bedCount = bc;
}
public int getDECK_LEVEL()
{
return deckLevel;
}
public void setDECK_LEVEL(int level)
{
deckLevel = level;
}
public String getID()
{
return id+"";
}
public void setID(String ID)
{
Integer i = new Integer(ID);
this.id = i.intValue();
}
*/
public void setEntityContext(EntityContext ctx)
{
// Nothing to do here ...
}
public void unsetEntityContext()
{
// Nothing to do here ...
}
public void ejbActivate()
{
// Nothing to do here ...
}
public void ejbPassivate()
{
// Nothing to do here ...
}
public void ejbLoad()
{
// Nothing to do here ...
}
public void ejbStore()
{
// Nothig to do here ...
}
public void ejbRemove()
{
// Nothing to do here ...
}
}
-------------
package com.titan.cabin;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.FinderException;
public interface CabinHome extends javax.ejb.EJBHome
{
public Cabin create(int id)
throws CreateException, RemoteException;
public Cabin findByPrimaryKey(String pk)
throws FinderException, RemoteException;
}
---------------
import com.titan.cabin.CabinHome;
import com.titan.cabin.Cabin;
import javax.naming.InitialContext;
import javax.naming.Context;
import javax.naming.NamingException;
import java.rmi.RemoteException;
import javax.rmi.PortableRemoteObject;
import java.util.Properties;
public class Client
{
public static void main(String args[])
{
try
{
System.out.print("Looking up JNDI..");
Context jndiContext = getInitialContext();
Object obj =
(CabinHome)jndiContext.lookup("CabinHome");
CabinHome home =
(CabinHome)PortableRemoteObject.narrow
(obj,CabinHome.class);
System.out.println("Success!");
Cabin cabin1 = home.create(1);
System.out.println("Created Home!");
cabin1.setName("Master Suite");
cabin1.setDeck_level(1);
cabin1.setShip_id(1);
cabin1.setBed_count(3);
System.out.println("Inserted the values in the
database");
System.out.println("Trying to Lookup the Same
Information");
Cabin cabin2 = home.findByPrimaryKey("1");
System.out.println(cabin2.getName());
System.out.println(cabin2.getDeck_level());
System.out.println(cabin2.getShip_id());
System.out.println(cabin2.getBed_count());
System.out.println(cabin2.getId());
}
catch(java.rmi.RemoteException
re){re.printStackTrace();}
catch(javax.naming.NamingException
ne){ne.printStackTrace();}
catch(javax.ejb.CreateException
ce){ce.printStackTrace();}
catch(javax.ejb.FinderException
fe){fe.printStackTrace();}
}
public static Context getInitialContext()
throws javax.naming.NamingException
{
Properties p = new Properties();
// This part is specific to weblogic.
p.put(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.WLInitialContextFactory");
p.put(Context.PROVIDER_URL,"t3://localhost:7001");
// Till here!
return new javax.naming.InitialContext(p);
}
}
-----------------
<?xml version="1.0"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems,
Inc.//DTD Enterprise JavaBeans 2.0//EN"
"http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<entity>
<ejb-name>TapBean</ejb-name>
<home>com.titan.cabin.CabinHome</home>
<remote>com.titan.cabin.Cabin</remote>
<ejb-class>com.titan.cabin.CabinBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>cabin</abstract-schema-name>
<cmp-field>
<field-name>id</field-name>
</cmp-field>
<cmp-field>
<field-name>ship_id</field-name>
</cmp-field>
<cmp-field>
<field-name>bed_count</field-name>
</cmp-field>
<cmp-field>
<field-name>name</field-name>
</cmp-field>
<cmp-field>
<field-name>deck_level</field-name>
</cmp-field>
<primkey-field>id</primkey-field>
<!--
These are required if I need to define some more
methods in my
EJBHome file (CabinHome.java) which require database
operation
since I have only, findByPrimaryKet() method I do not
need to do
anything. Looks like I don't need to define that
method here!
<query>
<query-method>
<method-name>findBigAccounts</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[FROM AccountBean AS a WHERE
a.balance > ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findAccount</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[FROM AccountBean AS a WHERE
a.balance = ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findNullAccounts</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[FROM AccountBean AS a WHERE
a.accountType IS NULL]]>
</ejb-ql>
</query>
-->
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>TapBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
----------
<!DOCTYPE weblogic-rdbms-jar PUBLIC '-//BEA Systems,
Inc.//DTD WebLogic 6.0.0 EJB RDBMS Persistence//EN'
'http://www.bea.com/servers/wls600/dtd/weblogic-rdbms20-persistence-600.dtd'>
<weblogic-rdbms-jar>
<weblogic-rdbms-bean>
<ejb-name>TapBean</ejb-name>
<data-source-name>insomnia</data-source-name>
<table-name>cabin</table-name>
<field-map>
<cmp-field>id</cmp-field>
<dbms-column>ID</dbms-column>
</field-map>
<field-map>
<cmp-field>ship_id</cmp-field>
<dbms-column>SHIP_ID</dbms-column>
</field-map>
<field-map>
<cmp-field>bed_count</cmp-field>
<dbms-column>BED_COUNT</dbms-column>
</field-map>
<field-map>
<cmp-field>name</cmp-field>
<dbms-column>NAME</dbms-column>
</field-map>
<field-map>
<cmp-field>deck_level</cmp-field>
<dbms-column>DECK_LEVEL</dbms-column>
</field-map>
</weblogic-rdbms-bean>
</weblogic-rdbms-jar>
----------
<?xml version="1.0"?>
<!DOCTYPE weblogic-ejb-jar PUBLIC "-//BEA Systems,
Inc.//DTD WebLogic 6.0.0 EJB//EN"
"http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd"
>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>
TapBean
</ejb-name>
<entity-descriptor>
<entity-cache>
<max-beans-in-cache>1000</max-beans-in-cache>
</entity-cache>
<persistence>
<persistence-type>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>6.0</type-version>
<type-storage>META-INF/weblogic-cmp-rdbms-jar.xml</type-storage>
</persistence-type>
<persistence-use>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>6.0</type-version>
</persistence-use>
</persistence>
</entity-descriptor>
<jndi-name>CabinHome</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
--------
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