BAEL-6250: Example code for Get All Caffeine Cache Keys article (#13806)

spring-boot-modules/spring-caching/src/main/java/com/baeldung/allkeys/config/AllKeysConfig.java

@@ -0,0 +1,25 @@
+package com.baeldung.allkeys.config;
+
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cache.caffeine.CaffeineCacheManager;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.allkeys.service.SlowServiceWithCache;
+
+@Configuration
+@EnableCaching
+public class AllKeysConfig {
+
+    @Bean
+    SlowServiceWithCache slowServiceWithCache() {
+        return new SlowServiceWithCache();
+    }
+
+    @Bean
+    CacheManager cacheManager() {
+        return new CaffeineCacheManager();
+    }
+
+}

spring-boot-modules/spring-caching/src/main/java/com/baeldung/allkeys/service/SlowServiceWithCache.java

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+package com.baeldung.allkeys.service;
+
+import org.springframework.cache.annotation.CachePut;
+
+public class SlowServiceWithCache {
+
+    @CachePut(cacheNames = "slowServiceCache", key = "#name")
+    public String save(String name, String details) {
+        return details;
+    }
+}