com.atlassian.cache
Interface CachedReferenceEvent<V>

All Known Implementing Classes:

DefaultCachedReferenceEvent

@PublicApi
public interface CachedReferenceEvent<V>

A resettable reference event.

NOTE: Although Cache Reference does not support null as a valid value we are using it in getValue as a way to represent missing value. We have the following reasons for this:

• Firstly, some events inherently do not have value. For instance resetting does not have a value as the corresponding element was just removed from the cached reference
• Secondly, in some implementations the information for the value and/or old value is not available at all.
• Thirdly, the listener can be added as a valueless listener

Since:

2.4

Method Summary

V	getValue() Returns cached reference value

Method Detail

getValue

@Nullable
V getValue()

Returns cached reference value

Returns:

the value. For details why is this method marked as Nullable please refer to the class level documentation