X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=TextCollection.h;h=2ea24ca57133e98350c758a9132b34118dbafe87;hb=ed61d2042a7ad7dd83bae32d7c31e69504dafa80;hp=1e34ab0a2c71d186bebfba079fa74dbccb6646cd;hpb=5b209950c7b0533b3082fcc2bde5fce1cf2fe632;p=SXSI%2FTextCollection.git

diff --git a/TextCollection.h b/TextCollection.h
index 1e34ab0..2ea24ca 100644
--- a/TextCollection.h
+++ b/TextCollection.h
@@ -42,16 +42,18 @@ namespace SXSI
         // Type for text position (FIXME ulong or long?)
         typedef ulong TextPosition;
 
+        // mode flag: Default includes both the index and "naive" text
+        enum index_mode_t { index_mode_default, index_mode_text_only }; // index_mode_index_only
+
         /**
          * Load from a file
          *
          * New samplerate can be given, otherwise will use the one specified in the save file!
-         * Note: This is not a static method; call InitTextCollection() first to get the object handle.
          *
          * Throws an exception if std::fread() fails.
          * 
          */
-        static TextCollection* Load(FILE *, unsigned samplerate = 0);
+        static TextCollection* Load(FILE *, index_mode_t = index_mode_default, unsigned samplerate = 0);
 
         /**
          * Save data structure into a file
@@ -75,8 +77,22 @@ namespace SXSI
          *
          * Returns the i'th text in the collection.
          * The numbering starts from 0.
+         *
+         * Call DeleteText() for each pointer returned by GetText()
+         * to avoid possible memory leaks.
          */
         virtual uchar* GetText(DocId) const = 0;
+        virtual void DeleteText(uchar *text) const = 0;
+
+        /**
+         * Returns a pointer to the beginning of texts i, i+1, ..., j.
+         * Texts are separated by a '\0' byte.
+         *
+         * Call DeleteText() for each pointer returned by GetText()
+         * to avoid possible memory leaks.
+         */
+        virtual uchar * GetText(DocId i, DocId j) const = 0;
+
         /**
          * Returns substring [i, j] of k'th text
          *
@@ -153,7 +169,9 @@ namespace SXSI
         virtual document_result Equal(uchar const *) const = 0;
         virtual document_result Contains(uchar const *) const = 0;
         virtual document_result LessThan(uchar const *) const = 0;
-
+        virtual document_result KMismaches(uchar const *, unsigned) const = 0;
+        virtual document_result KErrors(uchar const *, unsigned) const = 0;
+    
         /**
          * Document reporting queries for given DocId interval.
          */
@@ -174,10 +192,15 @@ namespace SXSI
         // Full reporting query for given DocId interval
         virtual full_result FullContains(uchar const *, DocId, DocId) const = 0;
 
+        virtual full_result FullKMismatches(uchar const *, unsigned) const = 0;
+        virtual full_result FullKErrors(uchar const *, unsigned) const = 0;
+
     protected:
         // Protected constructor; use TextCollectionBuilder
         TextCollection() { };
 
+//        index_mode_t indexMode;
+
         // No copy constructor or assignment
         TextCollection(TextCollection const&);
         TextCollection& operator = (TextCollection const&);