[jboss-user] [JBoss Portal] - Re: JBoss 5 Integration

[andydale]

Hi,

I followed the instructions from the following page 
http://www.jboss.org/community/wiki/JBossPortalonAS5, but rather than using 
5.1.0Beta1, I am using 5.1.0.GA.

Both maven compiling steps went fine for me, but unfortunately the compiling of 
the JBoss_Portal_Branch_2_7_AS5 had i few issues.  Here is the output:

 [javac] Compiling 249 source files to 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/output/classes
  | [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/test/wsrp/config/ProducerConfigurationTestCase.java:45:
 warning: [deprecation] org.jboss.xb.binding.XercesXsMarshaller in 
org.jboss.xb.binding has been deprecated

 
  | [javac] import org.jboss.xb.binding.XercesXsMarshaller; 

 
  | [javac]^

 
  | [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/test/wsrp/deployment/DeploymentTestCase.java:33:
 package org.jboss.portal.metadata.wsrp.consumer does not exist   
  | [javac] import 
org.jboss.portal.metadata.wsrp.consumer.ConsumerDeploymentsMetaData;

  
  | [javac]   ^ 

 
  | [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/test/wsrp/deployment/DeploymentTestCase.java:34:
 package org.jboss.portal.metadata.wsrp.consumer does not exist   
  | [javac] import 
org.jboss.portal.metadata.wsrp.consumer.WSRPProducerMetaData;   

  
  | [javac]   ^ 

   
  | [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/wsrp/WSRPResourceURL.java:30:
 warning: [deprecation] org.jboss.portal.common.util.MediaType in 
org.jboss.portal.common.util has been deprecated


  | ..  I discovered that to resolve this build issue I had to add 
the jar create from the  mvn install for the metadata 
(metadata-wsrp-trunk-SNAPSHOT.jar).  This then leads to the following build 
problem:
   [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/wsrp/deployment/WSRPConsumerDeploymentImpl.java:43:
 package org.jboss.portal.deployer.wsrp.container does not exist   
  | [javac] public class WSRPConsumerDeploymentImpl implements 
org.jboss.portal.deployer.wsrp.container.WSRPDeployment 
  
  | [javac] 
   ^
 
  | [javac] 
/commons/data/downloads/jboss/portal_as5/portal/wsrp/src/main/org/jboss/portal/wsrp/deployment/WSRPConsumerDeploymentImpl.java:65:
 cannot find symbol
  | [javac] symbol  : class ConsumerDeploymentsMetaData 

 
  | [javac] location: class 
org.jboss.portal.wsrp.deployment.WSRPConsumerDeploymentImpl 

 
  | [javac]public void deployConsumer (ConsumerDeploymentsMetaData 
deployments)
  
  | [javac]^
   
  | 
Adding the jar created from mvn package for the deployer fixes this build issue.

This gives me the following structure in jboss server/all/deploy (NOTE, gif and 

[jboss-user] [EJB 3.0] - Re: mapping generic entities

[andydale]

HI,

Have you tried annotating the abstract classes with @MappedSuperclass, this 
annotation means the class annotated with it is not an entity, and as such 
hibernate will not attempt to map it.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Getting a session from entityManager

[andydale]

Hi,

Does the EntityManager work normally, for example does em.persist() work ?  

I have had a problem berfore with em.getDelegate() returning an 
EntityManagerImpl which could not be cast to a session.

In the end i had to call 

Session sess = (Session)((EntityManagerImpl)em.getDelegate()).getDelegate()

or

Session sess = (Session)((EntityManagerImpl)em.getDelegate()).getSession()

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Database Connection

[andydale]

Hi

you're right, a chage is needed in the persistence file: change the following

jta-data-sourceOracle/jta-data-source

to

jta-data-sourcejava:/Oracle/jta-data-source

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: cannot simultaneously fetch multiple bags

[andydale]

This exception can also occur when you are performing multiple fetch joins (on 
bags) in a query

Cheers,

Andrew

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[jboss-user] [EJB 3.0] - Re: Primary key generator best practices? (Postgres specific

[andydale]

don't forget to add allocationSize = 1 to the @SequenceGenerator annotation, or 
what is stored migth not match the sequence values.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: JBOSS 4.2.0 MySQL

[andydale]

Hi,

I would create a mysql-ds.xml file in /deploy.  I have copied the standard 
example one that comes with JBoss 4.0.4/5 (it should hopefully just work with 
4.2.0GA as well):

?xml version=1.0 encoding=UTF-8?

!-- $Id: mysql-ds.xml 41016 2006-02-07 14:23:00Z acoliver $ --
!--  Datasource config for MySQL using 3.0.9 available from:
http://www.mysql.com/downloads/api-jdbc-stable.html
--

  | datasources
  |   local-tx-datasource
  | jndi-nameMySqlDS/jndi-name
  | 
connection-urljdbc:mysql://mysql-hostname:3306/jbossdb/connection-url
  | driver-classcom.mysql.jdbc.Driver/driver-class
  | user-namex/user-name
  | passwordy/password
  | 
exception-sorter-class-nameorg.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter/exception-sorter-class-name
  | !-- should only be used on drivers after 3.22.1 with ping support
  | 
valid-connection-checker-class-nameorg.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker/valid-connection-checker-class-name
  | --
  | !-- sql to call when connection is created
  | new-connection-sqlsome arbitrary sql/new-connection-sql
  |   --
  | !-- sql to call on an existing pooled connection when it is obtained 
from pool - MySQLValidConnectionChecker is preferred for newer drivers
  | check-valid-connection-sqlsome arbitrary 
sql/check-valid-connection-sql
  |   --
  | 
  | !-- corresponding type-mapping in the standardjbosscmp-jdbc.xml 
(optional) --
  | metadata
  |type-mappingmySQL/type-mapping
  | /metadata
  |   /local-tx-datasource
  | /datasources
  | 

On startup this file will be deployed, and now you can use it with ejb3 e.t.c

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: javax.naming.NameNotFoundException: MyEjb3 not bound :(

[andydale]

It could also be helpful if you could post the exact structure of the ear 
archive and what is contained within it e.g. (application.xml contents)

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: javax.naming.NameNotFoundException: MyEjb3 not bound :(

[andydale]

Have you tried binding it to a specific name using the following annotations:


  | @LocalBinding(jndiBinding = name)
  | @RemoteBinding(jndiBinding=name)
  | 

then you could look up the name as defined in  

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Datasource with JBoss and Hibernate

[andydale]

Hi,

Try renaming the xml file the datasource is defined in to the following, 
epus3-ds.xml or oracle-ds.xml.  This is how datasources are configured in JBoss 
running on Linux (note the -ds.xml) i assume it is the same for Windows.

Cheers

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Hibernate and XML persistence implementation

[andydale]

Hi,

You will need to use a Hibernate session, with the EntityMode set to DOM4J.  
You should hopefully be able to extract the data and store it into an xml 
document, but you will have to set up all the mappings in hbm.xml files (I 
think)

Thanks,

Andy

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[jboss-user] [EJB 3.0] - Re: wrong value generated by a sequence generator in jboss-4

[andydale]

Hi,

In the @SequenceGenerator annotation add the following attributes:

allocationSize=1, initialValue=1

You can leave the initialValue attribute out if you want, as all you should 
need to get it to work correctly is the allocationSize attribute.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Hibernate3: Cannot simultaneously fetch multiple bags

[andydale]

Hi,

The problem comes from the following code:


  | private CollectionRole roles = new ArrayListRole();
  | private CollectionGroup groups = new ArrayListGroup();
  | 

A Collection is treated as a bag.  You have have some possibilities to fix it.

An easy solution is to use the @CollectionID.  Another solution would be to 
change them to List and then use the @IndexColum, and the final solution is 
to change the to Set.  You must read up on Hibernate Collection mapping  
first, to see whats suits your data model best.

Go to this URL:

http://www.hibernate.org/hib_docs/annotations/reference/en/html/entity.html#entity-mapping-association

Cheers,

Andy

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[jboss-user] [JBossWS] - Re: Need help on wsdl first webservice approach documentatio

[andydale]

Hi,

You can use the 1.0.4GA release of JBossWS no with no prblems in 4.0.4.GA

Thanks,

Andy

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[jboss-user] [JBossWS] - Re: advice needed

[andydale]

Hi,

I am not running the client via the wsrunclient, i am trying to run it as a 
standalone app (probably not the best idea, considering the trouble i am 
having).  I added the correct jar into the classpath but i now get a 

org.jboss.ws.WSException: Cannot find configFile: 
META-INF/standard-jaxws-client-config.xml

error when trying to run the client.  I even installed jbossws1.0.4GA on 
4.0.4GA and i still get the same problem after coping the 
standard-jaxws-client-config.xml in the META-INF within the jbossws.sar dir in 
deploy.

I am now attempting to call the web service via a HTTP form with the web 
service URL as the action (using HTTP POST) , the web service returns something 
but it is only an error saying:


  | env:Envelope
  |env:Header/
  |env:Body
  |   faultcodeenv:Client/faultcode
  |   faultstring
  |  Unsupported content type: application/x-www-form-urlencoded
  |   /faultstring
  |/env:Body
  | /env:Envelope
  | 

Any help/adivce would be appreciated.

Thanks,

Andy

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[jboss-user] [JBossWS] - advice needed

[andydale]

Hi,

Let me first explain that i am a beginner when it come to jboss web services, 
so i am sorry if this is a stupid problem.

I installed jbossws-1.2.0.GA last week to an ejb3-clustered install of 
jboss4.0.5.GA.  I then proceeded to follow the simple step listed here 
http://wiki.jboss.org/wiki/Wiki.jsp?page=JBWS181HelloWorld 
I created an EJB3 (Stateless bean) like so:


@RemoteBinding(jndiBinding = ws_remote)
  | @Stateless
  | @WebService
  | @SOAPBinding(style = SOAPBinding.Style.RPC)
  | public class WebServiceTestBean implements IWebServiceTestRemote {
  | 
  | 
  | @WebMethod
  | @WebResult(name = res)
  | public String echo(@WebParam(name = input_string) String 
pInputString) {
  | System.out.println(pInputString);
  | return pInputString +  :: web serviced;
  | }
  | 
  | 
  | }

And the wsdl generation for it worked.  So i am now trying to access it with a 
simple client.  I created the client using the wsconsume.sh script (with -k 
option) provided with jbossws.  This creates the following file:

 /**
  |  * JBossWS Generated Source
  |  * 
  |  * Generation Date: Mon Mar 12 14:55:35 CET 2007
  |  * 
  |  * This generated source code represents a derivative work of the input to
  |  * the generator that produced it. Consult the input for the copyright and
  |  * terms of use that apply to this source code.
  |  * 
  |  * JAX-WS Version: 2.0
  |  * 
  |  */
  | @WebServiceClient(name = WebServiceTestBeanService, targetNamespace = 
http://beans.test.com/;, wsdlLocation = 
http://172.16.26.83:8080/test/Echo?wsdl;)
  | public class WebServiceTestBeanService extends Service {
  | 
  | private final static URL WEBSERVICETESTBEANSERVICE_WSDL_LOCATION;
  | 
  | static {
  | URL url = null;
  | try {
  | url = new URL(http://172.16.26.83:8080/test/Echo?wsdl;);
  | } catch (MalformedURLException e) {
  | e.printStackTrace();
  | }
  | WEBSERVICETESTBEANSERVICE_WSDL_LOCATION = url;
  | }
  | 
  | public WebServiceTestBeanService(URL wsdlLocation, QName serviceName) {
  | super(wsdlLocation, serviceName);
  | }
  | 
  | public WebServiceTestBeanService() {
  | super(WEBSERVICETESTBEANSERVICE_WSDL_LOCATION, new 
QName(http://beans.test.com/;, WebServiceTestBeanService));
  | }
  | 
  | 
  | /**
  |  * 
  |  * @return
  |  * returns WebServiceTestBean
  |  */
  | @WebEndpoint(name = WebServiceTestBeanPort)
  | public WebServiceTestBean getWebServiceTestBeanPort() {
  | return (WebServiceTestBean)super.getPort(new 
QName(http://beans.test.com/;, WebServiceTestBeanPort), 
WebServiceTestBean.class);
  | }
  | 
  | }

I then try to create a WebServiceTestBeanService object, and call the 
getWebServiceTestBeanPort method which should return a proxy to the web service 
which i can call the test method echo with.  

I am running into trouble with creating the WebServiceTestBeanService object, 
as i get a noClassDefFound exception, the stack trace is:

Exception in thread main java.lang.NoClassDefFoundError: 
org/jboss/xb/binding/ObjectModelFactory
  | at 
org.jboss.ws.core.jaxws.spi.ServiceDelegateImpl.init(ServiceDelegateImpl.java:108)
  | at 
org.jboss.ws.core.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:61)
  | at javax.xml.ws.Service.init(Service.java:83)
  | at 
com.test.beans.WebServiceTestBeanService.init(WebServiceTestBeanService.java:45)
  | at com.test.beans.driver.main(driver.java:13)
  | 

can anybody tell me what i have done wrong.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: @ManyToOne results in tinyblob

[andydale]

Hi Andreas,

from looking at your base entity, i can see that you are mixing the levels of 
your annotations.  In my experience this is a cause of so many problems (and if 
it causes any exceptions they are not very helpful at all), try moving all you 
annotations to field level or to method (getter) level.  Let me know if this 
helps.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Getting generated ID by sequence

[andydale]

Hi,

Try declaring your sdequence as so:
@SequenceGenerator(name = tsperson_sequence, allocationSize=1, sequenceName = 
SEQ_TSPERSON_ID)
You must have the allocationSize=1 (or some other value) or it uses some kind 
of hi-lo strategy.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: HQL and enum constants

[andydale]

Hi.

try this:

SELECT DISTINCT m FROM Material m, IN(m.suppliers) s WHERE m.unit  
Material$MaterialUnit.SQUARE_METRES AND s.id = :id

I am not sure if you will need the package name before Material.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Disable schema cration on JBoss embedded

[andydale]

Hi Maik,

I also think it is ok to set the hbm2ddl.auto task to none, like so:

property name=hibernate.hbm2ddl.auto value=none/

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Updating JBoss 4.0.5.GA to use the latest Hibernate Jars

[andydale]

Hi,

Don't forget to replace the files (hibernate-annotations, hibernate3-client) in 
the client directory

Thanks,

Andy

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[jboss-user] [EJB 3.0] - Re: ENTITY not mapped

[andydale]

Hi,

Try to change the query to the following instead:

from person p where p.class='US' order by name, forename

Andy

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[jboss-user] [EJB 3.0] - Re: Query

[andydale]

Hi,

The are a few ways that the multiple bag exception can be avoided.  

You mentioned using a Set instead, this would solve the problem but it has the 
restriction that it can only contain distinct values so you need to consider if 
they will work for you.

Another solution would be to use Lists, but i would personally never do this as 
i have experienced lots of problems (like them missing out the join table they 
create in queries) with Bi-Directional indexed relationships (using a list to 
map a oneToMany)

The thrid solution could be to keep using collections, but also annotate with 
@CollectionId, i have not used this yet, but i reckon it could also run into 
problems with bi-directional relationships.

Andy

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[jboss-user] [EJB 3.0] - Re: Query

[andydale]

Hi Dalibor,

The help is no problem, as i ran into quite a lot of these errors when i first 
started using Hibernate + EJB3 + JBoss.

I also went with the Set to solve the Multiple Bag problem, as it seems the 
easiest so long as it fits the data model.  I think @CollectionId is a 
hibernate specific annotation that is not in the spec, as it was only 
introduced with the last release.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Query

[andydale]

Hi,

In an EJBQL query you can fetch the collection by using a fetch join, such as 
the following example (taken from Enterprise Java Beans 3.0)

SELECT c FROM Customer c LEFT JOIN FETCH c.phones

Where Customer is an entity containing a collection (relationship) of phones.


Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Query

[andydale]

It is possible to keep fetching ahead, but you need to watch out for the 
classic hibernate Could not fetch multiple bags exception.  To do multiple 
fetching, you will just need to use aliases, for example:

SELECT c FROM Customer c LEFT JOIN FETCH c.phones cp JOIN FETCH cp.some other 
collection

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: ERM to Entity relationship problem

[andydale]

Hi,

The problem with you first appraoch is the you have an entity ( 
AuditSearchAssignEntity) with no @Id declared in it.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: How to deploy an EJB3 app in production ?

[andydale]

have you tried setting the hbm2ddl to update, it creates the schema if it does 
not exist and updates if it (if any updates are needed).  Beware that it (in my 
experience) only adds to the schema and does not remove from the schema.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: How to connect my EJB to firebird database?

[andydale]

Hi,

You need to configure a persistence.xml file and then pack it in the META-INF 
dir of the ejb jar.  The persistence.xml will look somethjing like so:

?xml version=1.0 encoding=UTF-8?
  | persistence
  | persistence-unit name=myPU
  | jta-data-sourcejava:/you firebird ds 
name/jta-data-source   
  | classmanaged class name/class
  | properties
  | property name=hibernate.dialect 
value=org.hibernate.dialect.FirebirdDialect/
  | property name=hibernate.hbm2ddl.auto 
value=create-drop/   
  | /properties
  | /persistence-unit
  | /persistence

You can then inject an EntityManager with the @PersistenceContext annotation 
within a Session bean.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: naming of attributes in queries

[andydale]

Hi,

Could you post up some your entity code, and the actual query you are trying to 
get to work.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Same query doesn't work on jboss-4.0.5.GA

[andydale]

Hi Andreas,

I think this is a problem with the newer version (3.2.0.GA) of hibernate that 
ships with 4.0.5GA.

I had a query that worked with Hibernate version 3.2.0CR2 but on upgrading to 
the final release the query did not work, because i was also getting a null 
pointer exception (exactly the same as yours).  There is a bug for it in the 
Hibernate JIRA 
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2159, it is a 
really simple fix if you want to do it yourself.

Here is the link to the thread on the hibernate forum 
http://forum.hibernate.org/viewtopic.php?t=966031highlight=breaks. 

Also please vote for the bug as well.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Same query doesn't work on jboss-4.0.5.GA

[andydale]

Hi Andreas,

First off you need to open the offending class 
(org.hibernate.hql.ast.tree.FromClause) and then locate addDuplicateAlias 
method, and then just put the fromElementByClassAlias.put( alias, element ); 
call into an if statement like so:


  | void addDuplicateAlias(String alias, FromElement element) { 
  | if(alias != null) {
  | fromElementByClassAlias.put( alias, element );
  | }
  | }
  | 
This solution has not been verified by the hibernate people, but if you look in 
the method above addDuplicateAlias(registerFromElement) they always perform the 
hashmap.put() calls in an if statement checking that the key (classAlias) is 
not null.  This got rid of my problem, hopefully it should do the same for you.

After you have modified the source, rebuild with ant,  i would use the target 
jar or dist

Let me know how you get on with it.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Same query doesn't work on jboss-4.0.5.GA

[andydale]

seems like you managed it :-)

I did not manage to get it to buiild via ant from eclipse.  I also got some 
other error with the junit tasks in the build file, but running ant jar or 
ant dist work fine

Andy 

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Getting Exception for Derby Data Source

[andydale]

Hi,

If you want to use Derby as the default DS you will need to do some more config 
(i have done this for EJBTimerService and for JMS/MDB)

For EJBTimerService, you will need to edit the ejb-timer-service.xml file 
located in the deploy directory and change the following line
depends 
optional-attribute-name=DataSourcejboss.jca:service=DataSourceBinding,name=DefaultDS/depends
btw, you will only need to do this if your Derby datasource is called something 
else other than DefaultDS, but seems as you get the error i am assuming yourts 
is not called DefaultDS.

For the JMS/MDB i would suggest copying the derby-jdbc2-service.xml from 
$JBOSS_HOME/doc/examples/jms/ into deploy/jms/ and edit the datsource name as 
needed.  Remove the hsqldb-jdbc2-service.xml and rename 
hsqldb-jdbc-state-service.xml to derby-jdbc-state-service.xml, and edit the 
datasource name if needed.

Cheers,

Andy 




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[jboss-user] [EJB 3.0] - Re: @OneToMany with String as the many

[andydale]

Hi,

try to annotate it with org.hibernate.annotations.CollectionOfElements.

Cheers,

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Getting Exception for Derby Data Source

[andydale]

is the Derby jdbc driver in the /lib directory of the server ??


Thanks,

Andy

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[jboss-user] [EJB 3.0] - Re: RC9 mappedBy and InheritanceType.JOINED problem

[andydale]

Hi Jason,

I don't think the null pointer exception is caused by EJB RC9 but rather by 
Hibernate 3.2.0.GA that ships along with JBoss 4.0.5GA.  To get it to work it 
will require you to manually patch the fromClause.java (very simple patch, only 
1 or 2 lines).  I have entered a bug in the Hibernate JIRA 
(http://opensource.atlassian.com/projects/hibernate/browse/HHH-2159), if you 
want it fixing, please vote for the issue.

Cheers,


Andy

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[jboss-user] [EJB 3.0] - Re: Mapping String attribute in EntityBean to CHAR(size) in

[andydale]

Hi,

Could you not just annotate the getter/variable with something like so:

@Column(columnDefinition=VARCHAR2(size))

Cheers

Andy

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[jboss-user] [EJB 3.0] - Re: EJB QL/ JPQL and search for inheritance

[andydale]

Hi Joachim,

In a EJB3 QL query you can query the Discriminator Value in the where section 
of the query.  For example:

WHERE tag.class = discriminator value

This is how i have managed to restrict results based on a Discriminator Value 
before.


Cheers,

Andy



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[jboss-user] [EJB 3.0] - Re: EJB QL/ JPQL and search for inheritance

[andydale]

Joachim,

I have never attmepted to do an instanceof with the inheritance type of a 
single table per hierarchy.  Prehaps you should investigate some other 
strategies, namely table per subclass as i think this will provide you with the 
functionality you would like, like so:


  | //create query
  | Query tmpQuery = mEntityManager.createQuery(FROM Tag t);
  | 
  | //get query result
  | ArrayListTag queryResult = 
(ArrayListTag)tmpQuery.getResultList();
  | 
  | //get iterator
  | Iterator it = testList.iterator();
  | 
  | //loop
  | while (it.hasNext()) {
  | Tag element = (Tag) it.next();
  | 
  | if(element instanceof PlaceMark) {
  | //DO STUFF :-)   
  | } 
  | }
  | 

In your top level parent class you just need to annotate like so:

@Inheritance(strategy = InheritanceType.JOINED)

and i just have a getter and setter for the id in this parent class, and not in 
the sub-classes(children). All you should need to do in the children classes is 
just extend the parent class.

To persist, just create and persist a child object and it automatically create 
and persists the parent objet with the correct attributes.


Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Getting reference on Persistence Unit

[andydale]

I am assuming that the DAO has some kind of persistence.xml where you specify 
the persistence unit.  Why not deploy both jars within a single .ear archive, 
and then have the persistence.xml in a lib directory in the base level of the 
archive, this will allow both jar's to use the same persistence unit.


Andy

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[jboss-user] [EJB 3.0] - Re: Getting reference on Persistence Unit

[andydale]

How are you deploying the jar files, in a single ear, or as 2 seperate jar 
files in the deploy directory ?


Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Does Hibernate 3.2 support generating Database schema fr

[andydale]

Yes Hibernate can create the DB schema from annotated classes, consider the 
following class
@Entity
  | @Table(name = Student)
  | @SequenceGenerator(name = Student_Sequence, initialValue = 1, 
allocationSize = 1, sequenceName = student_seq)
  | 
  | public final class Student {
  | //** class variables *   
  | /**
  |  * The ID of the entity.
  |  */
  | private int mId;
  | 
  | /**
  |  * Name of the student.
  |  */
  | private String mName;
  | 
  | 
  | /**
  |  * Course student is enrolled on
  |  */
  | private CollectionCourse mCourses = new ArrayListCourse();
  | //
  | 
  | //*** getters and setters 
  | 
  | /**
  |  * Return the courses the student is enrolled on.
  |  * @return mCourses courses
  |  */
  | @ManyToMany(mappedBy = students, fetch = FetchType.EAGER, cascade 
={CascadeType.PERSIST, CascadeType.MERGE})
  | public CollectionCourse getCourses() {  
  | return mCourses;
  | }
  | 
  | /**
  |  * See the course the student is enrolled on
  |  * @param pCoursesEnrolledOn courses
  |  */
  | public void setCourses(final CollectionCourse pCourses) {
  | mCourses = pCourses;
  | }
  | 
  | /**
  |  * get the Id.
  |  * @return mId id
  |  */
  | @Id
  | @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = 
Student_Sequence)
  | @Column(name = student_id)
  | public int getId() {
  | return mId;
  | }
  | 
  | /**
  |  * Set the id.
  |  * @param pId id
  |  */
  | public void setId(final int pId) {
  | this.mId = pId;
  | }
  | 
  | /**
  |  * Return the name.
  |  * @return mName name
  |  */
  | public String getName() {
  | return mName;
  | }
  | 
  | /**
  |  * set the name.
  |  * @param pName name
  |  */
  | public void setName(String pName) {
  | this.mName = pName;
  | }
  | //
  | }
will create a table on deploy with the definition
CREATE TABLE student
  | (
  |   student_id int4 NOT NULL,
  |   name varchar(255),
  |   CONSTRAINT student_pkey PRIMARY KEY (student_id)
  | ) 

The above example is pretty simple, but you could just deploy a class annotated 
with @Entity.  On deploy JBoss/Hibernate would convert it into a DB table in 
the DB specified in a persistence.xml file (must be in META-INF of ejb.jar).

Experiment a bit, and possibly buy yourself the Enterprise JavaBeans 3.0 book 
(Bill Burke, Richard Monson-Haefel), as it gives you some decent examples of 
how EJB3 works.


Cheers,

Andy


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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Does Hibernate 3.2 support generating Database schema fr

[andydale]

Hi,

I do not know if there is an Ant task for this, i just let JBoss do it for me 
on deployment of my .ear file. 

Andy



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[jboss-user] [Installation, Configuration Deployment] - Keep getting a java.io.IOException

[andydale]

Hi,

I have managed to set up JBoss servers before whitout any problem, but i am 
currently experiencing a few issues.  2 Servers recently had a fresh Fedora 
Core 5 install, and now i cannot get JBoss to start without errors (related to 
UDP multicasting).

The current exception i get is:

java.lang.Exception: dest=/233.3.3.21:45551 (52 bytes)
  | at org.jgroups.protocols.UDP._send(UDP.java:356)
  | at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:300)
  | at org.jgroups.protocols.TP.doSend(TP.java:938)
  | at org.jgroups.protocols.TP.send(TP.java:927)
  | at org.jgroups.protocols.TP.down(TP.java:716)
  | at org.jgroups.stack.DownHandler.run(Protocol.java:120)
  | Caused by: java.io.IOException: Network is unreachable
  | at java.net.PlainDatagramSocketImpl.send(Native Method)
  | at java.net.DatagramSocket.send(DatagramSocket.java:612)
  | at org.jgroups.protocols.UDP._send(UDP.java:330)
  | ... 5 more
  | 2006-11-07 14:52:03,091 ERROR [org.jgroups.protocols.UDP] failed sending 
message
  | java.lang.Exception: dest=/233.3.3.21:45551 (52 bytes)
  | at org.jgroups.protocols.UDP._send(UDP.java:356)
  | at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:300)
  | at org.jgroups.protocols.TP.doSend(TP.java:938)
  | at org.jgroups.protocols.TP.send(TP.java:927)
  | at org.jgroups.protocols.TP.down(TP.java:716)
  | at org.jgroups.stack.DownHandler.run(Protocol.java:120)
  | Caused by: java.io.IOException: Network is unreachable
  | at java.net.PlainDatagramSocketImpl.send(Native Method)
  | at java.net.DatagramSocket.send(DatagramSocket.java:612)
  | at org.jgroups.protocols.UDP._send(UDP.java:330)
  | ... 5 more

I am pretty certain multicasting is enabled as i have the following entry in 
/sbin/ifconfig 

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

I am using JBoss 4.0.4GA along with Java 1.5.0_08

Does anyone have an idea what is causing the problem ??

Thanks in advance,

Andy

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[jboss-user] [EJB 3.0] - Re: Persistence Problem after upgrading to 4.0.5GA

[andydale]

Try declaring ArticleConsumeSchemaTemplate as a mappedSuperclass (so long as 
you don't need the template class persisted)

Have a look here 
http://opensource.atlassian.com/projects/hibernate/browse/ANN-390 as it seems 
to be similar to your problem.

Andy

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[jboss-user] [EJB 3.0] - Re: Persistence Problem after upgrading to 4.0.5GA

[andydale]

Or you could try experimenting with the targetEntity in @OneToMany side ??

Andy

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[jboss-user] [EJB 3.0] - Re: Persistence Problem after upgrading to 4.0.5GA

[andydale]

anonymous wrote : I've annotated the class as MappedSuperclass AND Entity

I'm thinking that this will possibly cause some strange behaviour, you could 
also check out the inheritence strategies such as single table, or table per 
subclass

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: Persistence Problem after upgrading to 4.0.5GA

[andydale]

I would try moving the annotations to the getter method(s). This is because i 
experienced the same problem/exception in 4.0.4GA when i was annotating at the 
variable declaration, moving it to the getter sloved the problem.


Andy

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[jboss-user] [Installation, Configuration Deployment] - Re: EJB-installation-problems

[andydale]

stupid question, but have you set $JBOSS_HOME ??

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[jboss-user] [EJB 3.0] - Re: totally weird error: org.hibernate.hql.ast.tree.FromClau

[andydale]

I also had this problem after upgrading to the latest release of Hibernate 
(3.2.0GA).  I was experiencing the this exception when trying query a single 
table inheritence structure.

The following query did not work


  | Query tmpQuery = mEntityManager.createQuery(SELECT DISTINCT e.expression 
FROM TargetEntity  +
  | t INNER JOIN t.expressionTargets e LEFT OUTER JOIN FETCH 
e.expression.restrictions r  +
  | JOIN FETCH r.expressionTargets f JOIN FETCH f.targetEntity 
 +
  | WHERE t.id = :pk AND e.expression.class = 
Rule).setParameter(pk, 1); 
  | 

but the following one did


  | Query tmpQuery = mEntityManager.createQuery(SELECT DISTINCT e.expression 
FROM TargetEntity  +
  | t INNER JOIN t.expressionTargets e LEFT OUTER JOIN FETCH 
e.expression.restrictions r  +
  | JOIN FETCH r.expressionTargets f JOIN FETCH f.targetEntity 
 +
  | WHERE t.id = :pk AND e.expression.class = 
'rule').setParameter(pk, 1); 
  | 

I had to quote the discriminator value in the query, if this was not done it 
caused a NPE.

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: jar-file elements in persistence.xml

[andydale]

I think this is a known bug, just reference the individual classes within 
seperate class tags like so:
classcom.test.MyClass1/class
  | classcom.test.MyClass2/class
  | classcom.test.MyClass3/class
  | 

Andy

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[jboss-user] [EJB 3.0] - Re: List in EJB3 Entity:

[andydale]

Hi,

If you want this list to be persistent, then annotate the List with 
@org.hibernate.annotations.CollectionOfElements

Andy

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[jboss-user] [EJB 3.0] - Re: @EJB not working?

[andydale]

I also cannot get @EJB injection to work, using JBoss.4.0.4.GA with whatever 
version of EJB3 that comes bundled with it.

I have experimented with in a few ways such as, specifiing a @LocalBinding, 
@EJB(mappedname=) and so on, but i the injection always results in null :-(.  
The current setup i have is that i am trying to look up the EJB in an MBean 
packaged within the same .ear file, could deployment order (ie .sar before 
.jar) possibly be causing the problem ? i have verified that it is bound in two 
ways, InitialContext.lookup() works and in the JNDI view it is bound,

Any help is appreciated.

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: EntityManager not working correctly

[andydale]

Karma,

I found that annotating the class (where the data is persisted) with 
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)  solved the 
problem for me, but unfortunately it does not seem to work for you.  But after 
reading your post i have revisited the problem and removed the annotations and 
it still works !!! so i really don't know what the cause of problem was in the 
first place. 

I would imagine that the underlying cause of the problem i had will be the same 
as the problem you are currently experiencing, namely that the em.persist() 
only triggers an update and does not wait for the transaction to commit, and i 
also found that trying em.flush() after had no effect at all.  To see if that 
is the case turn on full database logging and you should see the insert, 
select, and then commit in that order.

The current program layout i have that is working is to have a top level method 
that calls 2 other methods. Method 1 is the presist data method and method 2 is 
the send message method.  See below:


  | public void action(){
  |  
  | int pk = 0;
  | 
  | try{
  | pk = doPersistData();
  | }catch(Exception e){
  | e.printStackTrace();
  | }
  | 
  | try{
  | // send a JMS message
  | doMessageStuff(pk);
  | }catch(Exception e){
  | e.printStackTrace();
  | }
  | }

The thread i also create about this on the hibernate website can be found here: 
http://forum.hibernate.org/viewtopic.php?t=962664highlight=

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Re: RC9 is out

[andydale]

apill,

According to the hibernate website the version of Hibernate Annotations and 
Hibernate EntityManager should 3.2.0.CR2.

http://forum.hibernate.org/viewtopic.php?t=964828start=0postdays=0postorder=aschighlight=

Cheers,

Andy

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[jboss-user] [EJB 3.0] - Cannot remove entites used in relationships

[andydale]

Hi,

I have set up a very simple entity model to test relationships in EJB3. I have 
no problems in adding to them, and removing an entity so long as it is not used 
in a relationship (not refered to as a foriegn key value).

The problem occurs when trying to remove the entity when it is used in a 
relationship be it many to many or many to one/one to many.  Another thing to 
note about the relationships between the entites is that on the owning side a 
java.util.Set is used and on the non-owning side a java.util.Collection is 
used. To give an example of a this in a many to many context.

I have 3 Entities Student, Course, and Institution and all of these 
relationships are many to many (please see below).
In Student.java the student-course many to many and collection declaration

  | private CollectionCourse mCourses = new ArrayListCourse();
  | 
  | @ManyToMany(mappedBy = students, fetch = FetchType.EAGER, cascade 
={CascadeType.PERSIST, CascadeType.MERGE})   
  | public CollectionCourse getCourses() {
  | return mCourses;
  | }
  | 

in Course.java student-course many to many and collection declarations/b]

  | private SetStudent mEnrolledStudents = new HashSetStudent();
  | 
  | @ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, fetch = 
FetchType.EAGER)
  | @JoinTable(name = course_student,
  | joinColumns = @JoinColumn(name = course_id, 
referencedColumnName = course_id),
  | inverseJoinColumns = @JoinColumn(name = student_id, 
referencedColumnName = student_id))   
  | public SetStudent getStudents() {   
  | return mEnrolledStudents;
  | }


in Course.java course-institution many to many and collection declaration

  | private CollectionInstitution mInstitutionsRunningCourse = new 
ArrayListInstitution();
  | 
  | @ManyToMany(mappedBy = courses, cascade = {CascadeType.PERSIST, 
CascadeType.MERGE})
  | public CollectionInstitution getInstitutions() {
  | return mInstitutionsRunningCourse;
  | }


in Institution.java course-institution many to many

  | private SetCourse mCoursesOffered = new HashSetCourse();
  | 
  | @ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, fetch = 
FetchType.EAGER)   
  | @JoinTable(name = institution_course,
  | joinColumns = @JoinColumn(name = institution, 
referencedColumnName = institution_id) ,
  | inverseJoinColumns = @JoinColumn(name = course, 
referencedColumnName = course_id) )
  | public SetCourse getCourses() {   
  | return mCoursesOffered;
  | }


I create a course with 3 students on it (3 entries in the association table) 
and also link this course to 2 institutions (2 entries in the association 
table). Then i try to call the EntityManager.remove() method from within the 
same SLSB. The error i get is this

anonymous wrote : Caused by: java.lang.RuntimeException: 
org.jboss.tm.JBossRollbackException: Unable to commit, 
tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=dale.comsoft.de/50, 
BranchQual=, localId=50] status=STATUS_NO_TRANSACTION; - nested throwable: 
(javax.persistence.EntityNotFoundException: 
org.hibernate.ObjectDeletedException: deleted entity passed to persist: 
[test.Course#])
  | at 
org.jboss.aspects.tx.TxPolicy.handleEndTransactionException(TxPolicy.java:198)
  | at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:180)
  | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
  | at 
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | at 
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:181)
  | at 
org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
  | at $Proxy347.tryDelete(Unknown Source)
  | at test.TestRelationships.storeData(TestRelationships.java:63)
  | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | at 

[jboss-user] [EJB 3.0] - Re: ManyToMany problem

[andydale]

I have decided to always annotate the getters of each class variable as this 
seems to work, and in all the examples i have managed to find this seems to be 
the done thing




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[jboss-user] [EJB 3.0] - Re: ManyToMany problem

[andydale]

Hi,

I figured out that the problem was with the mappedBy in the non owning side of 
the ManyToMany relationship.  What i still do not completely understand is what 
it maps to, is mappedBy = students mapping to the java.util.Set variable ? it 
can't map to the name because it is not students so does it map to the type of 
it,  or possibly to the getter and setters (get/setStudents) ?

If anyone can clear this up for me, i would be thankful.

Andy

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[jboss-user] [EJB 3.0] - ManyToMany problem

[andydale]

I am currently trying to implement a really simple many to many relationship 
using students and courses, but i cannot get it to work.  The error always 
seems to be with the Collection in the none owning side of the relationship.

Below are the exceptions i get:
anonymous wrote : 
  | 17:01:06,300 INFO  [Ejb3Configuration] Processing PersistenceUnitInfo [
  | name: test
  | ...]
  | 17:01:06,302 INFO  [Ejb3Configuration] found EJB3 Entity bean: test.Course
  | 17:01:06,307 INFO  [Ejb3Configuration] found EJB3 Entity bean: test.Student
  | 17:01:06,307 WARN  [Ejb3Configuration] Persistence provider caller does not 
implements the EJB3 spec correctly. PersistenceUnitInfo.getNewTempClassLoader() 
is null.
  | 17:01:06,309 INFO  [Configuration] Reading mappings from resource: 
META-INF/orm.xml
  | 17:01:06,309 INFO  [Ejb3Configuration] [PersistenceUnit: test] no 
META-INF/orm.xml found
  | 17:01:06,311 INFO  [AnnotationBinder] Binding entity from annotated class: 
test.Course
  | 17:01:06,312 INFO  [EntityBinder] Bind entity test.Course on table course
  | 17:01:06,312 WARN  [AnnotationBinder] Hibernate does not support 
SequenceGenerator.initialValue()
  | 17:01:06,322 INFO  [AnnotationBinder] Binding entity from annotated class: 
test.Student
  | 17:01:06,322 INFO  [EntityBinder] Bind entity test.Student on table student
  | 17:01:06,323 WARN  [AnnotationBinder] Hibernate does not support 
SequenceGenerator.initialValue()
  | 17:01:06,368 WARN  [ServiceController] Problem starting service 
persistence.units:ear=TestRelationships.ear,jar=TestRelationshipsEJB.jar,unitName=test
  | org.hibernate.MappingException: Could not determine type for: 
java.util.Collection, for columns: 
[org.hibernate.mapping.Column(mCoursesEnrolledOn)]
  | at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:266)
  | at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
  | at org.hibernate.mapping.Property.isValid(Property.java:185)
  | at 
org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:395)
  | at org.hibernate.mapping.RootClass.validate(RootClass.java:192)
  | at org.hibernate.cfg.Configuration.validate(Configuration.java:1021)
  | at 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1206)
  | at 
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:631)
  | at 
org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:760)
  | at 
org.hibernate.ejb.Ejb3Configuration.createContainerEntityManagerFactory(Ejb3Configuration.java:350)
  | at 
org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:119)
  | at 
org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:264)
  | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:99)
  | at 
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  | at 
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  | at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | at 
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
  | at $Proxy0.start(Unknown Source)
  | at 
org.jboss.system.ServiceController.start(ServiceController.java:417)
  | at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | at 

[jboss-user] [EJB 3.0] - JBoss not binding @Local SLSB

[andydale]

Hi,

I have a very simple set up with an .ear file which contains a .sar and 
.jar(EJB 3).  The problem at the moment is that it will not bind the Local or 
Remote interfaces of a stateless session bean.

My project is currently set up as follows.  I have a top level interface 
(IRelationTest), then the local and remote interfaces of the session bean 
inherit from this (IRelationTestLocal, IRelationTestRemote, these 2 files also 
have the @local and @remote annotations in them).  My Stateless session bean 
implements both the local and remote interfaces, and specifies the jndi binding 
with the @LocalBinding and @RemoteBinding.

This app was only to test the relationships between entities so i was going to 
test it via the JMX console with the help of an MBean.  The *MBean.java is just 
an empty interface and and then i have a class that implements the MBean, in 
the implementing class a lookup of the local interface of the session beanis 
made from the IntialContext, this is never never bound.

Structure of files:

  | Top Level .ear
  | META-INF/
  | META-INF/MANIFEST.MF
  | TestRelationships-ejb.jar
  | TestRelationshipsMBean.sar
  | META-INF/application.xml
  | EJB .jar
  | META-INF/
  | META-INF/MANIFEST.MF
  | test/
  | test/Course.class
  | test/RelationTest.class
  | test/IRelationTestLocal.class
  | test/IRelationTest.class
  | test/IRelationTestRemote.class
  | test/Student.class
  | META-INF/persistence.xml
  | MBean .sar
  | META-INF/
  | META-INF/MANIFEST.MF
  | test/
  | test/TestRelationships.class
  | test/TestRelationshipsMBean.class
  | META-INF/jboss-service.xml
  | 

And the exception i get is
anonymous wrote : 
  | 13:53:15,291 INFO  [EARDeployer] Undeploying J2EE application, destroy 
step: file:/usr/local/jboss-4.0.4.GA/server/default/deploy/TestRelationships.ear
  | 13:53:15,292 INFO  [EARDeployer] Undeployed J2EE application: 
file:/usr/local/jboss-4.0.4.GA/server/default/deploy/TestRelationships.ear
  | 13:53:15,294 INFO  [EARDeployer] Init J2EE application: 
file:/usr/local/jboss-4.0.4.GA/server/default/deploy/TestRelationships.ear
  | 13:53:15,314 INFO  [STDOUT] IN HERE: TestRelationships
  | 13:53:15,314 ERROR [STDERR] javax.naming.NameNotFoundException: TestLoc not 
bound
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.server.NamingServer.getObject(NamingServer.java:543)
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.server.NamingServer.lookup(NamingServer.java:296)
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
  | 13:53:15,315 ERROR [STDERR] at 
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
  | 13:53:15,315 ERROR [STDERR] at 
javax.naming.InitialContext.lookup(InitialContext.java:351)
  | 13:53:15,315 ERROR [STDERR] at 
test.TestRelationships.(TestRelationships.java:26)
  | 13:53:15,316 ERROR [STDERR] at 
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  | 13:53:15,316 ERROR [STDERR] at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
  | 13:53:15,316 ERROR [STDERR] at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
  | 13:53:15,316 ERROR [STDERR] at 
java.lang.reflect.Constructor.newInstance(Constructor.java:494)
  | 13:53:15,316 ERROR [STDERR] at 
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:1233)
  | 13:53:15,316 ERROR [STDERR] at 
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:286)
  | 13:53:15,316 ERROR [STDERR] at 
org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:344)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.system.ServiceCreator.install(ServiceCreator.java:157)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:449)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:171)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.system.ServiceController.install(ServiceController.java:226)
  | 13:53:15,317 ERROR [STDERR] at 
sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
  | 13:53:15,317 ERROR [STDERR] at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 13:53:15,317 ERROR [STDERR] at 
java.lang.reflect.Method.invoke(Method.java:585)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | 13:53:15,317 ERROR [STDERR] at 
org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | 13:53:15,318 ERROR [STDERR] 

[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: EntityManager not working correctly

[andydale]

Yesterday we managed to get it working with pure JDBC without any problems. We 
then integrated the EntityManager with the JDBC statements, and we think the 
problem exists with the .persist() method. It seems as if it returns from the 
method without waiting for the commit to happen at the database level.

Andy

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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: EntityManager not working correctly

[andydale]

Hi,

After spending the whole week trying to fix this problem, i am still no closer 
to the actual solution but i have discovered some more information.  This 
problem is Postgres specific at the moment as i have tested the 
EntityManager.find() method call in the same context when using Hypersonic and 
MySQL and the entity is always found.

After studying the log file created by Postgres (without having the 2 second 
delay) it seems to not be able to commit the initiial insert statement 
generated from the EntityManager.persist() call before it tries to query it 
with the select statement, thus the .find() returns null.  The thing that 
worries me about this problem is that some times it works with Postgres, and 
that it always works with the 2 other databases i tested with.  

I have read up on the EntityManager and discovered that it is not thread safe, 
could this be causing the problem with Postgres, if so i know i need to use an 
EntityManagerFactory as this is a thread safe object, but how do i just create 
on factory that the whole of the application can use (be used in different 
beans, possible JNDI lookup ??), and even then i do not know if this would 
solve my problem.  Is there anyway of making the EntityManager.persist() method 
wait until the database has actually commited before it returns ??? I have also 
tried to introduce flush() calls but they do not solve the problem.

Is this a possible bug in the EntityManager or Postgres JDBC code ???

I also have a very simple test application (.ear file) that just persists some 
bytes to a database and then tries to find them again in a seperate MDB, and 
then prints out if it cannot find the persisted object.  If anybody wants it to 
test the problem  with this application i will make it available to them.


If anyone can help, or offer advice it is appreciated.

Cheers,

Andy



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[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: Problems with Postgres, Persistence, and large objects

[andydale]

I am still having this problem, but have been investigating it further.  What i 
have found out is that if you call the EntityManager.find() method directly 
after you have just persisted the object in the same class then it manages to 
find the Entity in the database.

The problem starts to happen when the you call the EntityManager.find() from 
within another class with the same persistence context (using the same 
persistence unit), it seems to return null 99.99% of the time.  I have no idea 
if this due to the database being used as it works with a Hypersonic data 
source but not with postgres.

Andy

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[jboss-user] [JCA/JBoss] - Problems with postgresql and bytea columns

[andydale]

Hi,

Are current message parsing application works perfectly when using Hypersonic 
as the datasource, but i am currently experiencing a lot of problems when 
trying to use PostgreSQL (8.1.4) as the datasource.

The currunt description/workflow of the application is as follows.  A byte 
array of around 300 k is received and then an Object is created from it, this 
is then persisted (via javax.persistance.EntityManager.persist()) and then also 
flushed.  The saved object is then queried and parsed further by the program.  
This is where the problem occurs because sometimes it cannot find the saved 
object even though you can view it via the db admin GUI.   It is like it is 
trying to query the object before it is properly saved in the DB and thus 
returning null from the DB.  

I am also getting lots of error/warning messages in the log file like the one 
below.

anonymous wrote : 2006-07-24 15:02:21,204 WARN  
[org.hibernate.util.JDBCExceptionReporter] SQL Warning: 0, SQLState: 0
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
StartTransactionCommand
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
SQL Warning: 0, SQLState: 0
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
ProcessUtility
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
SQL Warning: 0, SQLState: 0
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
CommitTransactionCommand
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
SQL Warning: 0, SQLState: 0
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
CommitTransaction
  | 2006-07-24 15:02:21,204 WARN  [org.hibernate.util.JDBCExceptionReporter] 
SQL Warning: 0, SQLState: 0

Has anybody else experienced a similar issue to this when using Postgres as the 
datasource, and if so how should i go about fixing it? 

Thanks,
Andy

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[jboss-user] [JBoss AOP] - sar will not deploy with LoadTimeWeaving (javaagent:pluggabl

[andydale]

Hi,

I have load time weaving working on my local machine no problem, i also want to 
set it up on another team member's computer but when i do so,  a .sar file 
fails to deploy correctly on startup of jboss.  

The current set of exceptions we are getting on start up are as follows:

anonymous wrote : org.jboss.deployment.DeploymentException: Unexpected error 
during load of: de.comsoft.cadas_ims.Parser.MessageParserImpl, msg=Code 
attribute in native or abstract methods in class file 
de/comsoft/cadas_ims/Parser/MessageParserImpl; - nested throwable: 
(java.lang.ClassNotFoundException: Unexpected error during load of: 
de.comsoft.cadas_ims.Parser.MessageParserImpl, msg=Code attribute in native or 
abstract methods in class file de/comsoft/cadas_ims/Parser/MessageParserImpl)
  | at 
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:196)
  | at 
org.jboss.system.ServiceController.install(ServiceController.java:226)
  | at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  | at $Proxy4.install(Unknown Source)
  | at org.jboss.deployment.SARDeployer.create(SARDeployer.java:249)
  | at org.jboss.deployment.MainDeployer.create(MainDeployer.java:953)
  | at org.jboss.deployment.MainDeployer.create(MainDeployer.java:943)
  | at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:807)
  | at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
  | at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | at 
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  | at 
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  | at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  | at $Proxy6.deploy(Unknown Source)
  | at 
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
  | at 
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
  | at 
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
  | at 
org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
  | at 
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  | at 
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | at java.lang.reflect.Method.invoke(Method.java:585)
  | at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | at 
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
  | at $Proxy0.start(Unknown Source)
  | at 
org.jboss.system.ServiceController.start(ServiceController.java:417)
  | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | at 

[jboss-user] [JBoss AOP] - EnableLoadTime weaving in Linux with JBoss 4.0.4GA

[andydale]

Hi,

I am trying to enable weaving on my jboss instance.  I have been found a few 
guides on the internet that i have tried to follow, which basically said to set 
the EnableLoadtimeWeaving element to true in the  
/deploy/jboss-aop-jdk50.deployer/META-INF/jboss-service.xml and then add 
the -javaagent:pluggable-instrumentor.jar(after moving to the $JBOSS_HOME/bin 
driectory) to run.sh.  I had to use the pluggable-instrumentor.jar that comes 
with the JBoss AOP IDE as i could not find it anywhere else.  This causes the 
following many exceptions, like the one below:

15:15:14,130 ERROR [STDERR] [warn] AOP Instrumentor failed to transform 
org.apache.catalina.core.StandardServer
  | 15:15:14,131 ERROR [STDERR] 
org.jboss.aop.instrument.TransformationException: Failed to aspectize class 
org.apache.catalina.core.StandardServer.  Could not find class it references 
org.apache.catalina.core.NamingContextListener  It may not be in your classpath 
and you may not be getting field and constructor weaving for this class.
  | 15:15:14,133 ERROR [STDERR] at 
org.jboss.aop.instrument.Instrumentor.convertReferences(Instrumentor.java:619)
  | 15:15:14,133 ERROR [STDERR] at 
org.jboss.aop.instrument.Instrumentor.transform(Instrumentor.java:673)
  | 15:15:14,133 ERROR [STDERR] at 
org.jboss.aop.AspectManager.translate(AspectManager.java:970)
  | 15:15:14,134 ERROR [STDERR] at 
org.jboss.aop.AspectManager.transform(AspectManager.java:882)
  | 15:15:14,134 ERROR [STDERR] at 
org.jboss.aop.standalone.AOPTransformer.aspectTransform(AOPTransformer.java:88)
  | 15:15:14,134 ERROR [STDERR] at 
org.jboss.aop.standalone.AOPTransformer.transform(AOPTransformer.java:75)
  | 15:15:14,135 ERROR [STDERR] at 
sun.instrument.TransformerManager.transform(TransformerManager.java:122)
  | 15:15:14,135 ERROR [STDERR] at 
sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:155)
  | 15:15:14,135 ERROR [STDERR] at 
java.lang.ClassLoader.defineClass1(Native Method)
  | 15:15:14,136 ERROR [STDERR] at 
java.lang.ClassLoader.defineClass(ClassLoader.java:620)
  | 15:15:14,136 ERROR [STDERR] at 
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
  | 15:15:14,136 ERROR [STDERR] at 
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
  | 15:15:14,137 ERROR [STDERR] at 
java.net.URLClassLoader.access$100(URLClassLoader.java:56)
  | 15:15:14,137 ERROR [STDERR] at 
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
  | 15:15:14,137 ERROR [STDERR] at 
java.security.AccessController.doPrivileged(Native Method)
  | 15:15:14,138 ERROR [STDERR] at 
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
  | 15:15:14,138 ERROR [STDERR] at 
org.jboss.mx.loading.RepositoryClassLoader.findClassLocally(RepositoryClassLoader.java:672)
  | 15:15:14,138 ERROR [STDERR] at 
org.jboss.mx.loading.RepositoryClassLoader.findClass(RepositoryClassLoader.java:652)
  | 15:15:14,139 ERROR [STDERR] at 
java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  | 15:15:14,139 ERROR [STDERR] at 
org.jboss.mx.loading.RepositoryClassLoader.loadClassLocally(RepositoryClassLoader.java:190)
  | 15:15:14,139 ERROR [STDERR] at 
org.jboss.mx.loading.ClassLoadingTask$ThreadTask.run(ClassLoadingTask.java:131)
  | 15:15:14,140 ERROR [STDERR] at 
org.jboss.mx.loading.LoadMgr3.nextTask(LoadMgr3.java:399)
  | 15:15:14,140 ERROR [STDERR] at 
org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:517)
  | 15:15:14,141 ERROR [STDERR] at 
org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:405)
  | 15:15:14,141 ERROR [STDERR] at 
java.lang.ClassLoader.loadClass(ClassLoader.java:251)
  | 15:15:14,141 ERROR [STDERR] at 
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
  | 15:15:14,141 ERROR [STDERR] at java.lang.Class.forName0(Native Method)
  | 15:15:14,142 ERROR [STDERR] at java.lang.Class.forName(Class.java:164)
  | 15:15:14,142 ERROR [STDERR] at 
org.apache.catalina.startup.Catalina.class$(Catalina.java:73)
  | 15:15:14,142 ERROR [STDERR] at 
org.apache.catalina.startup.Catalina.createStartDigester(Catalina.java:262)
  | 15:15:14,143 ERROR [STDERR] at 
org.apache.catalina.startup.Catalina.load(Catalina.java:440)
  | 15:15:14,143 ERROR [STDERR] at 
org.apache.catalina.startup.Catalina.start(Catalina.java:543)
  | 15:15:14,143 ERROR [STDERR] at 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 15:15:14,144 ERROR [STDERR] at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 15:15:14,144 ERROR [STDERR] at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 15:15:14,144 ERROR [STDERR] at 
java.lang.reflect.Method.invoke(Method.java:585)
  | 15:15:14,145 ERROR [STDERR] at 
org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
  

[jboss-user] [JBoss AOP] - Newbie - Help Needed

[andydale]

Hi,

I am new to AOP and am currently running into problenm when trying to implement 
a custom aspect (interceptor) on JBoss 4.0.4GA.

I have already managed to write a working Interceptor by actually coding it 
inside the bean with the @AroundInvoke, but now i want to implement it like 
demonstrated here 
http://docs.jboss.org/jbossas/jboss4guide/r3/html/aop.chapt.html with having a 
.jar (custom Aspect) file, and jboss-aop.xml file in the deploy directoy, and 
annotation the method in the bean.  The problem i am currently having is that 
it never seems to fire.

TestInterrup.java (aspect interace)
package com.jboss.aspect;
  | 
  | import java.lang.annotation.Target;
  | import java.lang.annotation.ElementType;
  | 
  | @Target({ElementType.METHOD})
  | public @interface TestInterrupt {}

TestInterruptAspect.java
package com.jboss.aspect;
  | 
  | //import the relevant aop libs
  | import org.jboss.aop.joinpoint.Invocation;
  | 
  | public class TestInterruptAspect {
  | 
  | public Object testInterrupt(Invocation invocation)throws Throwable{
  | 
  | //test print
  | System.out.println( Interrupt fired successfully );
  | 
  | return invocation.invokeNext();
  | }
  | 
  | }

jboss-aop.xml
?xml version=1.0 encoding=UTF-8 standalone=yes?
  | aop
  | aspect class=com.jboss.aspect.TestInterruptAspect
  |   scope=PER_VM/
  | 
  | bind pointcut=execution(* *-@com.jboss.aspect.TestInterrupt(*))
  | advice name=testInterrupt
  | aspect=com.jboss.aspect.TestInterruptAspect/
  | /bind
  | /aop
  | 

Can anyone offer me any advice on how to solve the problem of it not firing on 
method invocation ?

Thanks in advance,

Andy

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