Class FilterDirectoryReader.DelegatingCacheHelper

java.lang.Object
org.apache.lucene.index.FilterDirectoryReader.DelegatingCacheHelper
All Implemented Interfaces:
IndexReader.CacheHelper
Enclosing class:
FilterDirectoryReader

protected static class FilterDirectoryReader.DelegatingCacheHelper extends Object implements IndexReader.CacheHelper
A DelegatingCacheHelper is a CacheHelper specialization for implementing long-lived caching behaviour for FilterDirectoryReader subclasses. It uses a unique CacheKey for the purpose of implementing the onClose listener delegation for the reader.