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diff --git a/logserver/src/main/java/com/yahoo/logserver/PluginLoader.java b/logserver/src/main/java/com/yahoo/logserver/PluginLoader.java
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+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.logserver;
+
+/**
+ * This interface specifies an API for implementing logserver plugin
+ * loaders.  A plugin loader has two basic tasks: to load or unload
+ * all of its knows plugins.  In addition, if a plugin loader's
+ * canReload() method returns <code>true</code>, plugins may be loaded
+ * again after they are unloaded.
+ *
+ * <p> Plugins loaded through such reload-capable plugin loaders may
+ * be upgraded without restarting the server.
+ *
+ * @author  <a href="mailto:stig@yahoo-inc.com">Stig Bakken</a>
+ */
+public interface PluginLoader
+{
+    /**
+     * Load all plugins known to this loader.
+     */
+    public void loadPlugins();
+}