Deploying entity beans with Local interfaces on Jboss

Hi, I'm trying to deploying a simple entity bean on Jboss. The EJB has been developed with Local Interfaces because then I want to access it with a session bean facade.
I get the following error:

23:41:25,984 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.2.2
Warning: The entity bean class must not be defined as abstract.
23:41:25,984 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.4.7.1
Warning: The primkey-field element must name a public field in the bean implemen
tation class.

I'm following what is wrote in the Professional EJB editeb by wrox?
Is it possible to deploy an entity bean alone with Local interfaces? Is there something I'm missing? It's true that I defined the implementation class as abstract, but because there are abstract getter/setter methods.
Thanks for any help,
Marco

Greetings,
Hi, I'm trying to deploying a simple entity bean on
Jboss. The EJB has been developed with Local
23:41:25,984 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.2.2
Warning: The entity bean class must not be defined as abstract.
23:41:25,984 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.4.7.1
Warning: The primkey-field element must name a public field in
the bean implementation class.What version of JBoss are you using? These errors indicate container compliance with EJB spec 1.1, not 2.0 to which your CMP beans are written. Download the latest JBoss release version - 3.2.1 - and you should not see this problem.
Is it possible to deploy an entity bean alone with
Local interfaces? Is there something I'm missing? It'sYes it is (no, you are not "missing something" ;). In fact, this is recommended practice in most cases under CMP 2.0 - CMR having been a major impetus to the development of Local interfaces in the specification. ;)
true that I defined the implementation class as
abstract, but because there are abstract getter/setter
methods.No problems. You are "right on track" for CMP 2.0. :)
Thanks for any help,
MarcoRegards,
Tony "Vee Schade" Cook

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Problems deploying entity beans with local interfaces on Jboss?

I'm trying to deploy a simple entity bean using local interfaces on Jboss 3.2.1 and I obtain the following exception:
19:08:51,875 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.2.2
Warning: The entity bean class must not be defined as abstract.
19:08:51,875 WARN [verifier] EJB spec violation:
Bean : UsersEJB
Section: 9.4.7.1
Warning: The primkey-field element must name a public field in the bean implemen
tation class.
Any idea?
Thanks,
Marco

I guess you are missing <cmp-version>2.x</cmp-version> for your first warning and <primkey-field>primary key field </primkey-field> for you second warning in your ejb-jar.xml

Do I need to Create Primary Key Class for Entity beans with Local interface

Do I need to Create Primary Key Class for Entity beans with Local interface?
I have created my entity bean with the wizard in Sun One Studio and it does not create a primary key class for you.
I thought that the primary key class was required. My key is made up of only one field.
Anyone know the answer.
Jim

u dont need to create a primary key class for a entity bean.if ur table's primary key feild(int ,float) is a built in or primitive data type,then u dont need one.But if ur table has a primary key field which is non primitive (for example StudentID,ItemID etc)then u have to create a primary key class.
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CMP Entity beans using local interfaces

Why CMP entity beans with CMR relation ship using local interfaces only?
Why we should not use remote interface to get the CMR field relationship?
Pls give me the solutions

"Local interfaces provide the foundation for container-managed relationships among entity beans and session beans. The bean uses the local interface to maintain its references to other beans. For example, an entity bean uses its local interfaces to maintain relationships to other entity beans. Using local interfaces, beans can also expose their state and use pass-by-reference to pass their state between related bean instances. "
http://java.sun.com/developer/technicalArticles/ebeans/EJB20CMP/

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Nidhi
I had the same problems as you that went away. If you have both remote and local interfaces defined, and your remote inerface can be accessed via JNDI lookup using (say) "ejb/sessionbean/stateless/HelloHome", then you can access the local intercafe using "local:ejb/ejb/sessionbean/stateless/HelloHome".
The URL http://localhost:9080/UTC/initialize?port=2809 is very useful to browse the JNDI tree. Just expand "Local EJB beans" and position your mouse over the item of interest. The JNDI lookup name will echo in the bottom (solid) frame of the browser. The only problem is that the jndilookup name will appear (mistakenly) as local:/ejb/ejb/stateless......, just get rid of the first forward-slash to make it look like local:ejb/ejb/stateless....
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CMP Entity Bean with ejb-ql finder methods and INFORMIX database

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I have some CMP Entity Beans with finder methods defined in ejb-ql. In my ejb-jar, within <entity> definitions I have something like:
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BeanName0_0pm.java
BeanName0_0PM.class
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    ResultSet ejb_rs = null;
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I'm trying to call this method but it throws a SQLException when preparing the statement.
It seems that Informix does not like this SQL syntax because of upper case names, doble quotes on table alias, or something else.
When editing persistent.xml in netweaver, I can define the element <datasource-vendor> as ORACLE, SAPDB, MS_SQL_SERVER, DB2_UDB_AS400 or DB2_UDB_OS390 but INFORMIX is not an accepted value.
Is there any way to define how this SQL query is build?
Thanks in advance.

The return type of the finder method defined in the remote home interface is either the entity bean's remote interface or a collection of objects implementing the entity bean's remote interface. The return type of the finder method defined in the local home interface is either the entity bean's local interface or a collection of objects implementing the entity bean's local interface

Deploying EJB with Local Interfaces.

HI everybody
I am trying example on EJB with LocalInterfaces with BMP.
My bean without Local interface is deployed and working fine.
Then i have changed Home & Remote interface code. Again i have deployed it . It is deployed but i am unable to Look Up.
I am using J2SDKEE1.3 server & JDK1.3.
I have changed both interface files as follow:-
I have made my Home interface as :
public interface RetrieveConditionHome extends javax.ejb.EJBLocalHome {
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I have made my Remote interface as :
public interface RetrieveCondition extends javax.ejb.EJBLocalObject {
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In JMS tutorial : They have stated ejbCreateLocal method.
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A J2EETM Application that Uses the JMS API with an Entity Bean
java.sun.com/products/jms/tutorial/1_3-fcs/doc/j2eeapp3.html
Viren

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Hello all,
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Thanks.
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Hi Nikola,
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as BLOB in the database), but only primitives, Java wrappers, String, and Date/Time types.
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Dag

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plz let me know where i am doing it wrong.

thanks for ur quick response sir i am using this services provided by sun microsystem first time and
am really thankful to Sun Microsystem for this great deal of help to the new commers but sir my problem is still there.
following is the method which i have written in the code
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and here it is the error generated by the server deployment tool.
[9.2.8] In EJB Invoice, the return type for the create method create(int) must be the bean's remote interface type.
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Regards
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Hi
You should use a Select Method, it does support cursors.
Or a Home Select Method combination.
Regards
Thomas
WLS is started with max memory of 512MB
EJB is deployed with <max-beans-in-cache>100000</max-beans-in-cache>>
(without max-beans-in-cache directive the performance is worse)>
Is there any documentation available to help us in deploying CMP
Entity Beans with very large number of records (instances) ? Any help
is greatly appreciated.>
Regards>
Rajan>
>
"Rajan Jena" <[email protected]> schrieb im Newsbeitrag
news:3dadd7d1$[email protected]..
>
Hello:
I have an CMP Entity deployed on WLS 7.0
The entity bean maps to a table that has 97,480 records.
It has a finder: findAll() -- SELECT OBJECT(e) FROM Equipment e
I have a JSP client that invokes the findALL()
The performance is very poor ~ 150 seconds just to perform the findAll() -(Benchmark
from within the JSP code)
If more than one simultaneous call is made then I get outOfMemory Error.
WLS is started with max memory of 512MB
EJB is deployed with <max-beans-in-cache>100000</max-beans-in-cache>
(without max-beans-in-cache directive the performance is worse)
Is there any documentation available to help us in deploying CMP EntityBeans
with very large number of records (instances) ?
Any help is greatly appreciated.
Regards
Rajan

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Hi,
We are using JDeveloper 3.2.2 to deploy EJB into Oracle 9ias (Oracle 8.1.7 database). The following error occured while deploying entity bean.
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*** Errors occurred while deploying the EJB to 8i JVM ***
*** Deployment completed ***"
Please help us with the solution if anyone have come across this kind of error.
Regards
Santhosh
null

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006-03-20 10:05:51.436 NOTIFICATION Error while compiling EJB component: file:/C:/oc4j/j2ee/home/ap
plications/ipower/InstitutionMgrSer-EJB.jar
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on.java:782)
at com.evermind.server.ejb.compilation.CMPObjectCompilation.<init>(CMPObjectCompilation.java
:56)
at com.evermind.server.ejb.compilation.PersistenceManagerCompilation.<init>(PersistenceManag
erCompilation.java:30)
at com.evermind.server.ejb.compilation.EntityBeanCompilation.<init>(EntityBeanCompilation.ja
va:121)
at com.evermind.server.ejb.compilation.Compilation.generateAnyOldStyle(Compilation.java:1590
at com.evermind.server.ejb.compilation.Compilation.compile(Compilation.java:182)
at com.evermind.server.ejb.compilation.Compilation.doGenerateCode(Compilation.java:250)
at com.evermind.server.ejb.EJBContainer.postInit(EJBContainer.java:891)
at com.evermind.server.ApplicationStateRunning.initializeApplication(ApplicationStateRunning
.java:210)
at com.evermind.server.Application.setConfig(Application.java:391)
at com.evermind.server.Application.setConfig(Application.java:308)
at com.evermind.server.ApplicationServer.addApplication(ApplicationServer.java:1771)
at oracle.oc4j.admin.internal.ApplicationDeployer.addApplication(ApplicationDeployer.java:50
7)
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We use EJB2.0 and as per the specifications entity class and getters/setters should be abstract. This is what we have. I have verified the dtd used in ejb-jars and it has references to the correct version. Here is an example <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">. Also the tag <cmp-version>2.x</cmp-version> is included for all the entity beans.
Now I am just curious to know if anyone has tried deploying Entity Beans 2.0 on a 10.1.3? and if so was the deployment successful?

Can Entity Bean with Home Business Method replace Stateless Session Bean?

Since Entity Bean can have business methods in the Home Interface, can we use Entity Bean with Home Business Methods to replace Stateless Session Bean?
I am assuming we can get better performance by doing this since the overhead of creating Component Object can be avoided as compared to stateless session beans.

Requires-new makes the container start a new transaction. Only use that flag
          at the point that you are certain that a NEW transaction should BEGIN. I
          suggest you use Required as your default for all methods in the application,
          and only change that to anything else when you are certain that you should.
          Peace,
          Cameron Purdy
          Tangosol Inc.
          << Tangosol Server: How Weblogic applications are customized >>
          << Download now from http://www.tangosol.com/download.jsp >>
          "A.J,LEE" <[email protected]> wrote in message
          news:3ba5adb2$[email protected]..
          >
          > I find it result in "dead lock"
          > when I call RequiresNew attributed CMP method in session Bean.
          > Then, Is it possible to use CMP which is set with "RequiresNew"
          transaction attribute?
          >
          > I Wonder why.
          >
          > Thanx in advance.

Multiple users accessing entity bean with same PK

Hi,
Some body please clarify the below issue.
(EJB 1.1, WAS3.5)
I have two app servers and two clones each clone is running in each app server.
Stateful session bean access Entity beans to update/read record in the database.
According to my requirement multiple users can access the same entity data (same primary key). Suppose user A created a Stateful session bean SB1 and the SB1 created Entity1 with PK1, this is happening at clone1.
User B accessed the site and the request went to Clone2 and a new SB2 created, but the SB2 need to access the database with Same PK1.
For the above situation, I guess container can not create a new Entity bean with PK1 because EB with PK1 is already there and it tries to allocate same EB1 with SB2, so if two requests are concurrent do the SB2 wait to get the handle of the EB1?
Is there any way to create two Entity beans with same Primary Key at the same time but in different clone?
Thanks,
Sagar

Hi,
The concurrency level has to be set at the level of database and the database will take care of consistency & integrity of the data. So specity the concurrency level on the database connection in each appserver.

Deploying entity beans with Local interfaces on Jboss

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