list existing versions of a secret

1 files changed, 7 insertions, 0 deletions

diff --git a/container-disc/src/main/java/com/yahoo/container/jdisc/secretstore/SecretStore.java b/container-disc/src/main/java/com/yahoo/container/jdisc/secretstore/SecretStore.java
index 902d924c431..7cd8e11c677 100644
--- a/container-disc/src/main/java/com/yahoo/container/jdisc/secretstore/SecretStore.java
+++ b/container-disc/src/main/java/com/yahoo/container/jdisc/secretstore/SecretStore.java
@@ -2,6 +2,8 @@
 
 package com.yahoo.container.jdisc.secretstore;
 
+import java.util.List;
+
 /**
  * @author mortent
  */
@@ -11,4 +13,9 @@ public interface SecretStore {
 
     /** Returns the secret for this key and version */
     String getSecret(String key, int version);
+
+    /** Lists the existing versions of this secret (nonnegative integers) */
+    default List<Integer> listSecretVersions(String key) {
+        throw new UnsupportedOperationException("Secret store does not support listing versions");
+    }
 }