class JcrSession implements org.modeshape.jcr.api.Session {

    @Override
    public String getNamespaceURI( String prefix ) throws RepositoryException {
        checkLive();
        return sessionRegistry.getURI(prefix);
    }

    protected  JcrSession( JcrRepository repository,
                          String workspaceName,
                          ExecutionContext context,
                          Map<String, Object> sessionAttributes,
                          boolean readOnly );
    protected  JcrSession( JcrSession original,
                          boolean readOnly );

}