access file included in EJB jar module that is deployed

[billelmehdi]

Hi, I want to know how to access file, included in the EJB jar module deployed in jboss, from an entity bean contained in the same module.

the module deployed has this structure:

beans/MyBean(with home and remote)
resources/file.xml
META-INF/ejb-jar.xml and jboss.xml

thanks.

[haraldgliebe]

You can use
Thread.currentThread().getContextClassLoader().getResourceAsStream("/resources/file.xml")
to open an InputStream to the file.

Regards,
Harald

[billelmehdi]

You are very helpful,
are you a solution in the oposite way, yes because I want to read and write in this file. It's possibleto do this?
Thanks.

[frito]

It is possible if the file can be accessed by the file system (not class loader!).
But the spec points out you must not use the java.io package ;-)

Greetings,
Frito

[billelmehdi]

I have not understood your solution! can you be more explicit please.
thanks.

[veit]

Hi,
write another class like XMLAccess. import the class as normal and do all the io-stuff through your extra class. This should work and be EJB Spec compatible.
Regards,
Dominic

[frito]

I don't know if I get you right Dominic. Do you mean you can instanciate another class on your bean call which does all the IO to be spec compliant? It doesn't matter which class is doing the IO when it is done on a bean call!!!

Sure you can use the java.io package. But the spec says you must not and I recommend not to do so until you really know what you are doing (remembering transactions, passivation, security, ...)

Greetings,
Frito

[veit]

Hi,
OK. The EJB spec comment was not really correct. However, I feel, that it is a possibility to handle IO access that is sometimes needed in a semi-tolerated way.
Regards,
Dominic