Binding/Validating a SAMLv2 Token with STS

[Tim Williams]

So my STS returns a SAML token that I can get as an w3c element.  I'm
wondering how I can bind that token to an outgoing message and then
validate a SAMLv2 token on an incoming service call.  There are
samples of, I think, something similiar using a UserNameToken with
WSS4J(In|Out)Interceptor but I'm not sure what the ACTION and Map
entries would be for a SAML Token and/or if this is the right
approach?  Any help much appreciated...
--tim