/**
* The full identifier name of the prefix mapping. That is,
* typically, a URI permanently allocated to a specific index
* set, such as <TT>http://zthes.z3950.org/cql/1.0<TT>.
*/
/**
* The full identifier name of the prefix mapping. That is,
* typically, a URI permanently allocated to a specific index
* set, such as <TT>http://zthes.z3950.org/cql/1.0<TT>.
*/