java:threadlocal

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--- java:threadlocal [2016/02/27 22:04]
kwon37xi 만듦
+++ java:threadlocal [2024/12/11 20:05] (현재)
kwon37xi [Java ThreadLocal]
@@ 줄 1: / 줄 1: @@
 ====== Java ThreadLocal ======
-  * [[http://docs.oracle.com/javase/7/docs/api/java/lang/ThreadLocal.html|ThreadLocal]]
+  * [[https://docs.oracle.com/javase/8/docs/api/java/lang/ThreadLocal.html|ThreadLocal]]
+  Each thread holds an implicit reference to its copy of a thread-local variable
+  as long as the thread is alive and the ThreadLocal instance is accessible;
+  after a thread goes away, all of its copies of thread-local instances are subject
+  to garbage collection (unless other references to these copies exist).
+ ===== withInitialValue =====
+  * 초기값을 생성하는 lambda 를 지정해두면 최초에 값이 없을 때에 적절한 초기값을 제공해준다.
+  * ''remove()'' 를 호출해서 초기값이 없어진 상태에서 다시 ''get()''을 하면 ''withInitialValue''로 설정했다면 다시 초기값을 생성해서 반환해준다.
-  Each thread holds an implicit reference to its copy of a thread-local variable as long as the thread is alive and the ThreadLocal instance is accessible; after a thread goes away, all of its copies of thread-local instances are subject to garbage collection (unless other references to these copies exist).
 ===== 참조 =====

java/threadlocal.1456580091.txt.gz · 마지막으로 수정됨: 2016/02/27 22:04 저자 kwon37xi