org.cache2k

Interface SimpleCacheEntry<K,V>

All Known Subinterfaces:

CacheEntry<K,V>, MutableCacheEntry<K,V>

public interface SimpleCacheEntry<K,V>

Object representing a cache entry. With the cache entry, it can be checked whether a mapping in the cache is present, even if the cache contains null or contains an exception. The simple entry does not provide a timestamp of the last modification, which allows the entry to be retrieved at a lower cost. Entries can be retrieved by Cache.peekSimpleEntry(Object) or Cache.getSimpleEntry(Object).

After retrieved, the entry instance does not change its values, even if the value for its key is updated in the cache.

Author:

Jens Wilke, Jens Wilke

See Also:

Cache.peekSimpleEntry(Object), Cache.getSimpleEntry(Object)

Method Summary

Modifier and Type	Method and Description
Throwable	getException() The exception happened when the value was loaded and the exception could not be suppressed.
K	getKey() Key associated with this entry.
V	getValue() Value of the entry.

Method Detail

getKey

K getKey()

Key associated with this entry.

getValue

V getValue()

Value of the entry. The value may be null if permitted for this cache via Cache2kBuilder.permitNullValues(boolean). If the entry had a loader exception which is not suppressed, this exception will be propagated. This method does ignore a custom exception propagator set via Cache2kBuilder.exceptionPropagator(ExceptionPropagator)

Throws:

CacheLoaderException - if the loading produced an exception .

getException

Throwable getException()

The exception happened when the value was loaded and the exception could not be suppressed. null if no exception happened or it was suppressed. If null then getValue() returns a value and does not throw an exception.