1 files changed, 42 insertions, 1 deletions

diff --git a/src/crepe/facade/DB.h b/src/crepe/facade/DB.h
index 06442ad..b62a974 100644
--- a/src/crepe/facade/DB.h
+++ b/src/crepe/facade/DB.h
@@ -12,22 +12,63 @@ extern "C" {
 
 namespace crepe {
 
+/**
+ * \brief Berkeley DB facade
+ *
+ * Berkeley DB is a simple key-value database that stores arbitrary data as
+ * both key and value. This facade uses STL strings as keys/values.
+ */
 class DB {
 public:
+	/**
+	 * \param path  The path of the database (created if nonexistant)
+	 */
 	DB(const std::string & path);
 	virtual ~DB() = default;
 
 public:
+	/**
+	 * \brief Get a value from the database, or throw an exception
+	 *
+	 * \param key  The value key
+	 *
+	 * \return The value
+	 *
+	 * \throws Exception if value is not found in DB or other error occurs
+	 */
 	std::string get(const std::string & key);
+	/**
+	 * \brief Set (create or overwrite) a value in the database
+	 *
+	 * \param key  The value key
+	 * \param value  The value to store
+	 *
+	 * \throws Exception if an error occurs
+	 */
 	void set(const std::string & key, const std::string & value);
+	/**
+	 * \brief Check if a key exists in the database
+	 *
+	 * \param key  The value key
+	 *
+	 * \returns True if the key exists, or false if it does not
+	 */
 	bool has(const std::string & key) noexcept;
 
 private:
+	//! RAII wrapper around \c DB struct
 	std::unique_ptr<libdb::DB, std::function<void(libdb::DB *)>> db;
+	//! RAII wrapper around \c DBC struct
 	std::unique_ptr<libdb::DBC, std::function<void(libdb::DBC *)>> cursor;
 
 private:
-	libdb::DBT to_thing(const std::string & thing) const;
+	/**
+	 * \brief Convert an STL string to DBT (data base thang)
+	 *
+	 * \param thing  Input data
+	 * \return \c DBT with the same data as input \c thing
+	 */
+	libdb::DBT to_thing(const std::string & thing) const noexcept;
 };
 
 }