Package com.google.common.cache

Class RemovalNotification<K,V>

java.lang.Object

java.util.AbstractMap.SimpleImmutableEntry<K,V>

com.google.common.cache.RemovalNotification<K,V>

All Implemented Interfaces:

Serializable, Map.Entry<K,V>

@GwtCompatible
public final class RemovalNotification<K,V>
extends AbstractMap.SimpleImmutableEntry<K,V>

A notification of the removal of a single entry. The key and/or value may be null if they were already garbage collected.

Like other Entry instances associated with CacheBuilder, this class holds strong references to the key and value, regardless of the type of references the cache may be using.

Since:

10.0

Author:

Charles Fry

See Also:

Serialized Form

Method Summary

Modifier and Type	Method	Description
static <K,V> RemovalNotification<K,V>	create(@Nullable K key, @Nullable V value, RemovalCause cause)	Creates a new RemovalNotification for the given key/value pair, with the given cause for the removal.
RemovalCause	getCause()	Returns the cause for which the entry was removed.
boolean	wasEvicted()	Returns true if there was an automatic removal due to eviction (the cause is neither RemovalCause.EXPLICIT nor RemovalCause.REPLACED).

Methods inherited from class java.util.AbstractMap.SimpleImmutableEntry

equals, getKey, getValue, hashCode, setValue, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static <K,V> RemovalNotification<K,V> create(@Nullable K key,
                                                                @Nullable V value,
                                                                RemovalCause cause)

Creates a new RemovalNotification for the given key/value pair, with the given cause for the removal. The key and/or value may be null if they were already garbage collected.

Since:

19.0

getCause

public RemovalCause getCause()

Returns the cause for which the entry was removed.

wasEvicted

public boolean wasEvicted()

Returns true if there was an automatic removal due to eviction (the cause is neither RemovalCause.EXPLICIT nor RemovalCause.REPLACED).