Caching pattern: Refactor shutdown hook to use method reference

christofferh · christofferh · commit 6ed842e58bab · 2016-09-22T20:34:46.000+02:00
diff --git a/caching/src/main/java/com/iluwatar/caching/AppManager.java b/caching/src/main/java/com/iluwatar/caching/AppManager.java
@@ -64,12 +64,7 @@ public static void initDb(boolean useMongoDb) {
   public static void initCachingPolicy(CachingPolicy policy) {
     cachingPolicy = policy;
     if (cachingPolicy == CachingPolicy.BEHIND) {
-      Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
-        @Override
-        public void run() {
-          CacheStore.flushCache();
-        }
-      }));
+      Runtime.getRuntime().addShutdownHook(new Thread(CacheStore::flushCache));
     }
     CacheStore.clearCache();
   }

Original file line number	Diff line number	Diff line change
`@@ -64,12 +64,7 @@ public static void initDb(boolean useMongoDb) {`
`64`	`64`	`public static void initCachingPolicy(CachingPolicy policy) {`
`65`	`65`	`cachingPolicy = policy;`
`66`	`66`	`if (cachingPolicy == CachingPolicy.BEHIND) {`
`67`		`- Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {`
`68`		`- @Override`
`69`		`- public void run() {`
`70`		`- CacheStore.flushCache();`
`71`		`- }`
`72`		`- }));`
	`67`	`+ Runtime.getRuntime().addShutdownHook(new Thread(CacheStore::flushCache));`
`73`	`68`	`}`
`74`	`69`	`CacheStore.clearCache();`
`75`	`70`	`}`