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1 files changed, 15 insertions, 0 deletions

diff --git a/container-core/src/main/java/com/yahoo/container/jdisc/state/SnapshotProvider.java b/container-core/src/main/java/com/yahoo/container/jdisc/state/SnapshotProvider.java
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index 00000000000..b72ee43bd7c
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+++ b/container-core/src/main/java/com/yahoo/container/jdisc/state/SnapshotProvider.java
@@ -0,0 +1,15 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.container.jdisc.state;
+
+import java.io.PrintStream;
+
+/**
+ * An interface for components supplying a state snapshot where persistence and
+ * other pre-processing has been done.
+ *
+ * @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
+ */
+public interface SnapshotProvider {
+    public MetricSnapshot latestSnapshot();
+    public void histogram(PrintStream output);
+}