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From Dain Sundstrom <d...@iq80.com>
Subject Re: Where do I get javax.persistence package?
Date Tue, 23 Oct 2007 18:18:17 GMT
If you're not using Eclipse (free) or Intellij ($$$)  IDE, I suggest  
you give one of them a try as they will catch all of these errors for  
you, and will automatically perform annoying tasks like managing  
imports.

-dain

On Oct 23, 2007, at 3:21 AM, Karan Malhi wrote:

> You will need to add the import for the javax.annotation package.
> Please also add geronimo-annotation_1.0_spec-1.1.jar to the classpath.
>
> On 10/23/07, satsuma <karijakari@hotmail.com> wrote:
>>
>> Thanks for the help Dain, but still not working.
>>
>> @Resources does not work either. The error message is the same  
>> "Cannot find
>> symbol: class Resources". I also tried with @Resource inside the  
>> class like
>> you said, but no success. I added geronimo-activation...jar to my  
>> classpath
>> so that the compiler won't give error about the DataSource.
>>
>>
>>
>> Dain Sundstrom wrote:
>>>
>>> The class level annotation for declaring resource jndi entries is
>>> @Resources:
>>>
>>>    @Resources({ @Resource(name="PostgreSQL Database",
>>> type=DataSource.class) })
>>>
>>> Also the type attribute is a java.lang.Class object not a
>>> java.lang.String object.
>>>
>>> BTW it is much easier to use field injection like this:
>>>
>>>    @Stateless
>>>    public class HelloBean implements Hello {
>>>      @Resource
>>>      private DataSource dataSource;
>>>
>>>      public String sayHello() {
>>>        return "Hello from EJB world!";
>>>      }
>>>    }
>>>
>>> This way you can avoid all the annoying boiler plate JNDI code.
>>>
>>> -dain
>>>
>>> On Oct 22, 2007, at 10:02 AM, satsuma wrote:
>>>
>>>>
>>>> Hi,
>>>>
>>>> This is not actually solved yet. When I try to compile my bean
>>>> class, I get
>>>> an error that says:
>>>>
>>>> HelloBean.java:7: cannot find symbol
>>>> symbol: class Resource
>>>> @Resource(name = "PostgreSQL Database", type =  
>>>> "javax.sql.DataSource")
>>>>  ^
>>>> 1 error
>>>>
>>>> My source files look like this
>>>>
>>>> // Remote interface
>>>> import javax.ejb.Remote;
>>>> import java.util.List;
>>>>
>>>> @Remote
>>>> public interface Hello
>>>> {
>>>>   public String sayHello();
>>>> }
>>>>
>>>> // Bean class
>>>>
>>>> import java.util.List;
>>>> import javax.ejb.Stateless;
>>>> import javax.persistence.*;
>>>>
>>>> @Resource(name = "PostgreSQL Database", type =  
>>>> "javax.sql.DataSource")
>>>> @Stateless
>>>> public class HelloBean implements Hello
>>>> {
>>>>   public String sayHello()
>>>>   {
>>>>     return "Hello from EJB world!";
>>>>   }
>>>> }
>>>>
>>>> There's no database operations yet, because I'm first trying to  
>>>> get it
>>>> through the compiler with the Resource annotation. The
>>>> PersistenceContext
>>>> annotation does not cause any errors.
>>>>
>>>> My classpath is
>>>>
>>>> .:/opt/apache-tomcat-6.0.10/lib/servlet-api.jar:
>>>> /opt/apache-tomcat-6.0.10/lib/jsp-api.jar:
>>>> /usr/share/java/postgresql-jdbc3-8.1.jar:/opt/junit/junit-4.4.jar:
>>>> /opt/openejb-3.0-beta-1/lib/geronimo-ejb_3.0_spec-1.0.jar:
>>>> /opt/openejb-3.0-beta-1/lib/openejb-client-3.0-beta-1.jar:
>>>> /opt/openejb-3.0-beta-1/lib/geronimo-jpa_3.0_spec-1.1.jar
>>>>
>>>> Is there something missing?
>>>>
>>>> Java is version 1.5.0_08.
>>>>
>>>>
>>>> satsuma wrote:
>>>>>
>>>>> Thanks Dario, that does it!
>>>>>
>>>>> Allthough I have no problem with the compilation part any more,  
>>>>> but I
>>>>> still can't get the database connection to work. I'll make a
>>>>> thread for
>>>>> the new question, to keep this thread under the current subject.
>>>>>
>>>>>
>>>>> Dario Laverde wrote:
>>>>>>
>>>>>> Hello Satsuma,
>>>>>>
>>>>>> Add the following 2 jars to your classpath:
>>>>>>
>>>>>> geronimo-ejb_3.0_spec-1.0.jar
>>>>>> geronimo-jpa_3.0_spec-1.1.jar
>>>>>>
>>>>>> For an example (using Tomcat) check my blog entry at:
>>>>>> http://javanotebook.com/2007/09/28/openejb_3_and_tomcat_6.html
>>>>>>
>>>>>> -Dario
>>>>>>
>>>>>>> Thank you Mohammad for your reply.
>>>>>>>
>>>>>>> I can not find such a jar file from the lib directory. The only
>>>>>>> ones
>>>>>>> close
>>>>>>> to that(containing 'persistence') are openjpa-
>>>>>>> persistence-1.0.0.jar and
>>>>>>> openjpa-persistence-jdbc-1.0.0.jar, so I added both of those
 
>>>>>>> to my
>>>>>>> classpath, but that didn't solve the problem. Any more tips?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Mohammad Nour El-Din wrote:
>>>>>>>>
>>>>>>>> Try including the persistence-api-XXXX.jar found in the
>>>>>>>> ${openejb.home}/lib
>>>>>>>> directory .
>>>>>>>>
>>>>>>>> On 10/18/07, satsuma <karijakari@hotmail.com> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I have just started EJB programming and I ran into a
problem,
>>>>>>>>> when
>>>>>>>>> trying
>>>>>>>>> to
>>>>>>>>> implement a simple stateless session bean that accesses
>>>>>>>>> database. I
>>>>>>>>> have
>>>>>>>>> been following the instruction in the openEJB documentation
 
>>>>>>>>> page,
>>>>>>>>> http://openejb.apache.org/databases.html
>>>>>>>>>
>>>>>>>>> When I try to compile my class, I get an error that states
>>>>>>>>> "package
>>>>>>>>> javax.persistence.* does not exist" and because of this
I can
>>>>>>>>> not use
>>>>>>>>> annotations such as @Resource or @PersistenceContext.
The
>>>>>>>>> @Stateless
>>>>>>>>> annotation on the other hand, works as supposed(I made
the
>>>>>>>>> hello world
>>>>>>>>> tutorial from the documentation).
>>>>>>>>>
>>>>>>>>> I have added geronimo-ejb_3.0_spec-1.0.jar and
>>>>>>>>> openejb-client-3.0-beta-1.jar
>>>>>>>>> to my classpath, do I need to add something more?
>>>>>>>>>
>>>>>>>>> Thanks.
>>>>>>>>> --
>>>>>>>>> View this message in context:
>>>>>>>>> http://www.nabble.com/Where-do-I-get-javax.persistence-
>>>>>>>>> package--tf4648542.html#a13279676
>>>>>>>>> Sent from the OpenEJB User mailing list archive at Nabble.com.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Thanks
>>>>>>>> - Mohammad Nour
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> View this message in context:
>>>>>>> http://www.nabble.com/Where-do-I-get-javax.persistence-package--
>>>>>>> tf4648542.html#a13281604
>>>>>>> Sent from the OpenEJB User mailing list archive at Nabble.com.
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> View this message in context: http://www.nabble.com/Where-do-I-get-
>>>> javax.persistence-package--tf4648542.html#a13346735
>>>> Sent from the OpenEJB User mailing list archive at Nabble.com.
>>>>
>>>
>>>
>>>
>>
>> --
>> View this message in context: http://www.nabble.com/Where-do-I-get- 
>> javax.persistence-package--tf4648542.html#a13360830
>> Sent from the OpenEJB User mailing list archive at Nabble.com.
>>
>>
>
>
> -- 
> Karan Singh Malhi


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