Changeset 15652 for gsdl/trunk/lib/dbclass.h

Timestamp:

2008-05-22T16:07:46+12:00 (16 years ago)

Author:

mdewsnip

Message:

(Adding new DB support) Moved the exists() function into dbclass because it can be shared between gdbmclass and sqlitedbclass.

File:

• gsdl/trunk/lib/dbclass.h (modified) (2 diffs)

gsdl/trunk/lib/dbclass.h

@@ -54 +54 @@
   virtual ~dbclass();
 
-  // Must be implemented by subclasses; returns true if opened
+  // MUST be implemented by subclasses; returns true if opened
   virtual bool opendatabase (const text_t &filename, int mode, int num_retrys, bool need_filelock) = 0;
 
-  // Must be implemented by subclasses
+  // MUST be implemented by subclasses
   virtual void closedatabase () = 0;
 
-  // Must be implemented by subclasses
+  // MUST be implemented by subclasses
   virtual void deletekey (const text_t &key) = 0;
 
-  // Must be implemented by subclasses; returns true if exists
-  virtual bool exists (const text_t& key) = 0;
+  // May be overwritten by subclasses; returns true if exists
+  virtual bool exists (const text_t& key);
 
   // Must be implemented by subclasses; returns true on success
   virtual bool getinfo (const text_t& key, infodbclass &info) = 0;
 
-  // Must be implemented by subclasses; returns true on success
+  // MUST be implemented by subclasses; returns true on success
   virtual bool getkeydata (const text_t& key, text_t &data) = 0;
 
-  // Must be implemented by subclasses; returns array of keys
+  // MUST be implemented by subclasses; returns array of keys
   virtual text_tarray getkeys () = 0;
 
@@ -78 +78 @@
   virtual bool setinfo (const text_t &key, const infodbclass &info) = 0;
 
-  // Must be implemented by subclasses; returns true on success
+  // MUST be implemented by subclasses; returns true on success
   virtual bool setkeydata (const text_t &key, const text_t &data) = 0;