Package org.infinispan.notifications.cachelistener.filter

Interface CacheEventFilter<K,V>

All Known Subinterfaces:
CacheEventFilterConverter<K,V,C>, IndexedFilter<K,V,C>
All Known Implementing Classes:
AbstractCacheEventFilterConverter, CompositeCacheEventFilter, KeyValueFilterAsCacheEventFilter, KeyValueFilterConverterAsCacheEventFilterConverter, PostCacheEventFilter, RemovedFilter, ScopeFilter
public interface CacheEventFilter<K,V>
A filter that can be used to tell if an event should be raised or not. This filter allows for filtering based on the previous value as well as the new updated value. The old value and old metadata are the previous values and the new value and new metadata are the new values even for pre and post events.
Since:
7.0
Author:
wburns

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    accept(K key, V oldValue, Metadata oldMetadata, V newValue, Metadata newMetadata, EventType eventType)
    Whether or not this event should be raised to the listener it is attached to.
    default MediaType
    format()
     

  • Method Details

    • accept

      boolean accept(K key, V oldValue, Metadata oldMetadata, V newValue, Metadata newMetadata, EventType eventType)
      Whether or not this event should be raised to the listener it is attached to.
      Parameters:
      key - The key for the entry that was changed for the event
      oldValue - The previous value before the event takes place
      oldMetadata - The old value before the event takes place
      newValue - The new value for the entry after the event takes place
      newMetadata - The new metadata for the entry after the event takes place
      eventType - The type of event that is being raised
      Returns:
      Whether or not to notify the listener

    • format

      default MediaType format()
      Returns:
      The desired data format to be used in the accept operation. If null, the filter will receive data as it's stored.