From a6ac0f89656b9ef374703d24bbb27316a705eadc Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Wed, 15 Aug 2012 21:32:34 +0200
Subject: DatabasePlugin: add method VisitUniqueTags()

Optimize the ProxyDatabase by invoking "list" on the peer, instead of
visiting all songs.
---
 src/db/SimpleDatabasePlugin.hxx | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/db/SimpleDatabasePlugin.hxx')

diff --git a/src/db/SimpleDatabasePlugin.hxx b/src/db/SimpleDatabasePlugin.hxx
index 1e990de13..0b7e838b5 100644
--- a/src/db/SimpleDatabasePlugin.hxx
+++ b/src/db/SimpleDatabasePlugin.hxx
@@ -66,6 +66,11 @@ public:
 			   VisitPlaylist visit_playlist,
 			   GError **error_r) const override;
 
+	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
+				     enum tag_type tag_type,
+				     VisitString visit_string,
+				     GError **error_r) const override;
+
 protected:
 	bool Configure(const struct config_param *param, GError **error_r);
 
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