/**
* Method called to ensure that the passed-in namespace can be used for actual output operation.
* It converts nulls to the proper "no namespace" instance, and ensures that (so far) unbound
* namespaces are properly bound (including declaring them as needed).
*/
protected final SMNamespace _verifyNamespaceArg(SMNamespace ns) {
if (ns == null) {
return SMOutputContext.getEmptyNamespace();
}
if (ns.isValidIn(_context)) { // hunky dory
return ns;
}
/* Hmmh. Callers should know better than to share namespace
* instances... but then again, we can easily fix the problem
* even if they are shared:
*/
return getNamespace(ns.getURI());
}
