public interface PerThreadValue<T>
| 限定符和类型 | 方法和说明 |
|---|---|
boolean |
exists()
Is a value stored (even null)?
|
T |
get()
Reads the current per-thread value, or returns null if no value has been
stored.
|
T |
get(T defaultValue)
Gets the current per-thread value if it exists (even if null), or the
defaultValue if no value has been stored.
|
T |
set(T newValue)
Sets the current per-thread value, then returns that value.
|
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