CacheEntry (grails-web 2.2.5 API)

```
public class CacheEntry<T>
extends java.lang.Object
```
Wrapper for a value inside a cache that adds timestamp information for expiration and prevents "cache storms" with a Lock. JMM happens-before is ensured with AtomicReference. Objects in cache are assumed to not change after publication.

Fields
Modifier and Type	Field and Description
`protected long`	`createdMillis`
`protected java.util.concurrent.atomic.AtomicReference<T>`	`valueRef`
`protected java.util.concurrent.locks.Lock`	`writeLock`

Constructors
Constructor and Description
`CacheEntry(T value)`

Methods
Modifier and Type	Method and Description
`void`	`expire()`
`long`	`getCreatedMillis()`
`T`	`getValue()`
`T`	`getValue(long timeout, java.security.PrivilegedAction<T> updater)` gets the current value from the entry and updates it if it's older than timeout updater is a callback for creating an updated value.
`protected boolean`	`hasExpired(long timeout)`
`protected void`	`resetTimestamp()`
`protected boolean`	`shouldUpdate(long beforeLockingCreatedMillis)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

protected java.util.concurrent.atomic.AtomicReference<T> valueRef

protected java.util.concurrent.locks.Lock writeLock

protected boolean hasExpired(long timeout)

protected boolean shouldUpdate(long beforeLockingCreatedMillis)

Class CacheEntry<T>