From d972e1689f4868c7bee1498bf7253983cc940a8b Mon Sep 17 00:00:00 2001
From: Nikita Koksharov <nkoksharov@redisson.pro>
Date: Mon, 21 Dec 2020 17:39:52 +0300
Subject: [PATCH] Improvement - keySet().isEmpty() and values().isEmpty()
 methods of RMap object aren't efficient. #3298

---
 redisson/src/main/java/org/redisson/RedissonMap.java | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/redisson/src/main/java/org/redisson/RedissonMap.java b/redisson/src/main/java/org/redisson/RedissonMap.java
index 428b633c7..336ce5cca 100644
--- a/redisson/src/main/java/org/redisson/RedissonMap.java
+++ b/redisson/src/main/java/org/redisson/RedissonMap.java
@@ -1489,6 +1489,11 @@ public class RedissonMap<K, V> extends RedissonExpirable implements RMap<K, V> {
             this.count = count;
         }
 
+        @Override
+        public boolean isEmpty() {
+            return !iterator().hasNext();
+        }
+
         @Override
         public Iterator<K> iterator() {
             return keyIterator(pattern, count);
@@ -1542,6 +1547,11 @@ public class RedissonMap<K, V> extends RedissonExpirable implements RMap<K, V> {
             this.count = count;
         }
 
+        @Override
+        public boolean isEmpty() {
+            return !iterator().hasNext();
+        }
+
         @Override
         public Iterator<V> iterator() {
             return valueIterator(keyPattern, count);