[jboss-as7-dev] EAR Classloading documentation seems to be in contradiction.

[Vimal Kansal]

Thanks a lot Jaikiran.

Vimal

On 19/07/2011 2:58 PM, Jaikiran Pai wrote:
> Sure, will do.
>
> -Jaikiran
> On Tuesday 19 July 2011 10:25 AM, Vimal Kansal wrote:
>> Thanks a lot Jaikiran. Also can you please elaborating/rephrasing the
>> content in doco using the descriprion from .xsd, I think the one in .xsd
>> is more clear.
>>
>> On 19/07/2011 2:47 PM, Jaikiran Pai wrote:
>>> That looks like a typo in that Classloading doc. The jboss-ee.xsd is
>>> correct. I'll fix the doc later today when I've fully woken up.
>>>
>>> -Jaikiran
>>> On Tuesday 19 July 2011 10:11 AM, Vimal Kansal wrote:
>>>> Hi,
>>>>
>>>> It appears that EAR classloading documentation at
>>>> https://docs.jboss.org/author/display/AS7/Class+Loading+in+AS7 is in
>>>> contradiction with what "jboss-ee.xsd describes :
>>>>
>>>> AS7 Doc version
>>>> ==============
>>>>
>>>> <subsystem xmlns="urn:jboss:domain:ee:1.0">
>>>> <ear-subdeployments-isolated>false</ear-subdeployments-isolated>
>>>> </subsystem>
>>>>
>>>> By default this is set to true, which means that sub deployments will be
>>>> able to see other non-war sub-deployments classes by default (i.e. a war
>>>> deployment's module will have a dependency on all other ejb-jar
>>>> sub-deployments, however it will not have a module dependency on any
>>>> other war deployments).
>>>>
>>>> If this is set to false then no automatic dependencies are set up, they
>>>> must be setup manually with Class-Path entries, or by setting up
>>>> explicit module dependencies. This means that WARs (and other EJB jars)
>>>> do not have access to classes defined in an EJB jar unless an explicit
>>>> dependency is defined. The Java EE specification says that portable
>>>> applications should not rely on sub deployments having access to other
>>>> sub deployments that they do not have a Class-Path entry on, so portable
>>>> applications should always use Class-Path entry's to explicitly state
>>>> their dependencies.
>>>>
>>>> jboss-ee.xsd version
>>>> ==================
>>>> Flag indicating whether each of the subdeployments within a .ear can
>>>> access classes belonging to
>>>>                          another subdeployment within the same .ear. Setting
>>>> this to false, allows the subdeployments to
>>>>                          see classes belonging to other subdeployments
>>>> within the .ear.
>>>>                          For example:
>>>>                          myapp.ear
>>>>                           |
>>>>                           |--- web.war
>>>>                           |
>>>>                           |--- ejb1.jar
>>>>                           |
>>>>                           |--- ejb2.jar
>>>>
>>>>                          If the ear-subdeployments-isolated is set to false,
>>>> then the classes in web.war can access classes
>>>>                          belonging to ejb1.jar and ejb2.jar. Similarly,
>>>> classes from ejb1.jar can access classes from ejb2.jar
>>>>                          (and vice-versa).
>>>>
>>>>                          *Note that this flag, has no effect on the isolated
>>>> classloader of the .war file(s). i.e. irrespective
>>>>                          of whether this flag is set to true or false, the
>>>> .war within a .ear will have a isolated classloader
>>>>                          and other subdeployments within that .ear will not
>>>> be able to access classes from that .war. This is
>>>>                          as per spec*
>>>>
>>>> Thx
>>>>
>>>> Vimal
>>>>
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