Provide a default for missing values in KeyValue

fixes gh-3458
micrometer-metrics · Oct 6, 2022 · e208f01 · e208f01
1 parent b732f2e
commit e208f01
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java b/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java
@@ -28,6 +28,11 @@
  */
 public interface KeyValue extends Comparable<KeyValue> {
 
+    /**
+     * Use this if you want to indicate that the value is missing.
+     */
+    public static final String NONE = "none";
+
     String getKey();
 
     String getValue();