InternalCacheValue (Red Hat Data Grid 7.3.9 API)

All Known Implementing Classes:

ImmortalCacheValue, MetadataImmortalCacheValue, MetadataMortalCacheValue, MetadataTransientCacheValue, MetadataTransientMortalCacheValue, MortalCacheValue, TransientCacheValue, TransientMortalCacheValue
```
public interface InternalCacheValue<V>
```
A representation of an InternalCacheEntry that does not have a reference to the key. This should be used if the key is either not needed or available elsewhere as it is more efficient to marshall and unmarshall. Probably most useful in cache stores.
Note that this should not be used to optimize memory overhead, since the saving of an additional reference to a key (a single object reference) does not warrant the cost of constructing an InternalCacheValue, where an existing InternalCacheEntry is already referenced.
Use of this interface only makes sense when marshalling is involved, since the cost of marshalling the key again can be sidestepped using an InternalCacheValue if the key is already known/marshalled.

Since:

4.0

Author:

Manik Surtani

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`canExpire()`
`long`	`getCreated()`
`long`	`getExpiryTime()`
`long`	`getLastUsed()`
`long`	`getLifespan()`
`long`	`getMaxIdle()`
`Metadata`	`getMetadata()`
`V`	`getValue()`
`boolean`	`isExpired()`	Deprecated. use `isExpired(long)`
`boolean`	`isExpired(long now)`
`default boolean`	`isMaxIdleExpirable()`
`<K> InternalCacheEntry<K,V>`	`toInternalCacheEntry(K key)`

- Method Detail
  - getValue
```
V getValue()
```
    Returns:
    
    the value represented by this internal wrapper
  - toInternalCacheEntry
```
<K> InternalCacheEntry<K,V> toInternalCacheEntry(K key)
```
  - isExpired
```
boolean isExpired(long now)
```
    Parameters:
    
    now - the current time as expressed by System.currentTimeMillis()
    
    Returns:
    
    true if the entry has expired; false otherwise
  - isExpired
```
@Deprecated
boolean isExpired()
```
    Deprecated.
    use isExpired(long)
    
    Returns:
    
    true if the entry has expired; false otherwise
  - canExpire
```
boolean canExpire()
```
    Returns:
    
    true if the entry can expire, false otherwise
  - isMaxIdleExpirable
```
default boolean isMaxIdleExpirable()
```
    Returns:
    
    true if this entry can expire via max idle, false otherwise
  - getCreated
```
long getCreated()
```
    Returns:
    
    timestamp when the entry was created
  - getLastUsed
```
long getLastUsed()
```
    Returns:
    
    timestamp when the entry was last used
  - getLifespan
```
long getLifespan()
```
    Returns:
    
    lifespan of the value
  - getMaxIdle
```
long getMaxIdle()
```
    Returns:
    
    max idle time allowed
  - getExpiryTime
```
long getExpiryTime()
```
  - getMetadata
```
Metadata getMetadata()
```