'Find the target component and its linktable
@return: tuple of S3Resource instances (component, link)'

def get_link(self):

    resource = self.resource
    selector = self.selector
    if (selector in resource.components):
        component = resource.components[selector]
    else:
        raise SyntaxError(('Undefined    component:    %s' % selector))
    if (not component.link):
        raise SyntaxError(('No    linktable    for    %s' % selector))
    link = component.link
    return (component, link)
