public TermIterator MetadataKeysBegin() { TermIterator ret = new TermIterator(XapianPINVOKE.Database_MetadataKeysBegin__SWIG_1(swigCPtr), true); if (XapianPINVOKE.SWIGPendingException.Pending) { throw XapianPINVOKE.SWIGPendingException.Retrieve(); } return(ret); }