question: public void putGrammar ( SchemaGrammar grammar ) { if ( grammar . getTargetNamespace ( ) == null ) fNoNSGrammar = grammar ; else fGrammarRegistry . put ( grammar . getTargetNamespace ( ) , grammar ) ; }
target:  Put a schema grammar into the registry This method is for internal use only: it assumes that a grammar with the same target namespace is not already in the bucket.