From 841694ccf2acb75f75a812421ddb8e99a3f9d48b Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Mon, 19 Nov 2018 12:48:25 +0100
Subject: db/Interface: document CollectUniqueTags()

---
 src/db/Interface.hxx | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/db')

diff --git a/src/db/Interface.hxx b/src/db/Interface.hxx
index 7a700557f..2bfdd0a44 100644
--- a/src/db/Interface.hxx
+++ b/src/db/Interface.hxx
@@ -105,6 +105,11 @@ public:
 		return Visit(selection, VisitDirectory(), visit_song);
 	}
 
+	/**
+	 * Collect unique values of the given tag type.
+	 *
+	 * Throws on error.
+	 */
 	virtual std::map<std::string, std::set<std::string>> CollectUniqueTags(const DatabaseSelection &selection,
 									       TagType tag_type,
 									       TagType group=TAG_NUM_OF_ITEM_TYPES) const = 0;
-- 
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