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Posted to users@jackrabbit.apache.org by Ista Pouss <is...@gmail.com> on 2011/12/28 11:41:32 UTC

namespace session or worspace ?

Hi,

I have this code :

    try
    {
      session.getNamespaceURI("xyz");
    }
    catch (NamespaceException notexist)
    {
      session.getWorkspace().getNamespaceRegistry(). // BING !
        registerNamespace(
        "xyz", "http://www.foo.com");
    }


... but, at line BING, I get this exception :

javax.jcr.NamespaceException: failed to register namespace xyz ->
http://www.foo.com: mapping already exists
    at
org.apache.jackrabbit.core.NamespaceRegistryImpl.registerNamespace(NamespaceRegistryImpl.java:406)
    at
org.apache.jackrabbit.core.session.SessionContext$PermissionAwareNamespaceRegistry.registerNamespace(SessionContext.java:375)


How is it possilbe ? What is the good thing to do to register a namespace ?

Thanks.

Re: namespace session or worspace ?

Posted by Jukka Zitting <ju...@gmail.com>.

Hi,

On Wed, Dec 28, 2011 at 12:41 PM, Ista Pouss <is...@gmail.com> wrote:
> How is it possilbe ? What is the good thing to do to register a namespace ?

You probably already have the namespace registered with another prefix.

When conditionally registering a namespace like you're doing, it's
usually best to use the getNamespacePrefix() method to check for the
existence of a mapping of a given namespace URI.

BR,

Jukka Zitting