Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/index/mphf_index.h

@@ -0,0 +1,100 @@
+/*
+ * $XConsortium: mphf_index.h /main/5 1996/07/18 14:39:04 drk $
+ *
+ * Copyright (c) 1993 HAL Computer Systems International, Ltd.
+ * All rights reserved.  Unpublished -- rights reserved under
+ * the Copyright Laws of the United States.  USE OF A COPYRIGHT
+ * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
+ * OR DISCLOSURE.
+ * 
+ * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
+ * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.  USE,
+ * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
+ * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
+ * INTERNATIONAL, LTD.
+ * 
+ *                         RESTRICTED RIGHTS LEGEND
+ * Use, duplication, or disclosure by the Government is subject
+ * to the restrictions as set forth in subparagraph (c)(l)(ii)
+ * of the Rights in Technical Data and Computer Software clause
+ * at DFARS 252.227-7013.
+ *
+ *          HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
+ *                  1315 Dell Avenue
+ *                  Campbell, CA  95008
+ * 
+ */
+
+
+#ifndef _mphf_index_h
+#define _mphf_index_h 1
+
+#include "utility/funcs.h"
+#include "index/index.h"
+#include "index/fast_mphf.h"
+#include "index/inv_lists.h"
+
+/**********************************************************/
+// An index class consisted of a MPHF object and an 
+// inverted list.
+/**********************************************************/
+class mphf_index : public c_index
+{
+
+public:
+   mphf_index() ;
+   virtual ~mphf_index() ;
+
+   void init_data_member(fast_mphf_handler*, inv_lists_handler*);
+
+   MMDB_SIGNATURES(mphf_index);
+
+// insert index functions
+   virtual Boolean batch_index_begin() ;
+   virtual Boolean batch_index_end() ;
+   virtual Boolean insert_key_loc(const handler&, const oid_t&) ;
+   virtual Boolean insert_key_loc(const oid_t&, const oid_t&) ;
+   virtual Boolean load(const char* key_set) ;
+  
+// remove index functions
+   virtual Boolean remove_loc(handler&, const oid_t& ) ;
+   virtual Boolean remove_loc(const oid_t&, const oid_t& );
+
+// update index function
+   virtual Boolean update_streampos(handler& old_obj,     
+                                    handler& new_obj,
+                                    mmdb_pos_t pos
+                                   ) ;
+
+// retrieval functions
+   virtual oid_list_handler* get_loc_list(const oid_t&);
+   virtual oid_list_handler* get_loc_list(const handler&);
+   virtual int invlist_length(handler&) ;
+
+   virtual oid_t first_of_invlist(int ind);
+   virtual oid_t first_of_invlist(const handler&);
+
+//
+   int handler_to_inv_idx(const handler& query);
+
+// status inquiry functions
+   virtual Boolean sorted() const { return false; };  
+
+// io function
+   friend ostream& operator <<(ostream&, mphf_index&);
+
+protected:
+
+protected:
+   fstream* v_key_loc_pair_out;
+
+private:
+   fast_mphf_handler *v_mphf;     // hash func
+   inv_lists_handler *v_invlists; // list of inv_list
+
+   char* f_key_file_name; 
+};
+   
+HANDLER_SIGNATURES(mphf_index)
+
+#endif