Package org.apache.solr.util

Common utility classes used throughout Solr

See: Description

Interface Summary

Interface	Description
ConcurrentLFUCache.EvictionListener<K,V>
ConcurrentLRUCache.EvictionListener<K,V>
SolrLogLayout.TG	Add this interface to a thread group and the string returned by getTag() will appear in log statements of any threads under that group.

Class Summary

Class	Description
AdjustableSemaphore
BCDUtils
BoundedTreeSet<E>	A TreeSet that ensures it never grows beyond a max size.
ConcurrentLFUCache<K,V>	A LFU cache implementation based upon ConcurrentHashMap.
ConcurrentLFUCache.Stats
ConcurrentLRUCache<K,V>	A LRU cache implementation based upon ConcurrentHashMap and other techniques to reduce contention and synchronization overhead to utilize multiple CPU cores more effectively.
ConcurrentLRUCache.Stats
DateMathParser	A Simple Utility class for parsing "math" like strings relating to Dates.
DefaultSolrThreadFactory
DOMUtil
EmptyEntityResolver	This class provides several singletons of entity resolvers used by SAX and StAX in the Java API.
FastWriter	Single threaded BufferedWriter Internal Solr use only, subject to change.
FileUtils
HdfsUtil
IOUtils
LongPriorityQueue	A native long priority queue.
MapListener<K,V>	Wraps another map, keeping track of each key that was seen via MapListener.get(Object) or MapListener.remove(Object).
NumberUtils
PrimUtils	Utilities for primitive Java data types.
PrimUtils.IntComparator
PropertiesInputStream
PropertiesOutputStream
PropertiesUtil	Breaking out some utility methods into a separate class as part of SOLR-4196.
RefCounted<Type>	Keep track of a reference count on a resource and close it when the count hits zero.
RegexFileFilter	Accepts any file whose name matches the pattern
RTimer	A recursive timer.
SimplePostTool	A simple utility class for posting raw updates to a Solr server, has a main method so it can be run on the command line.
SolrLogLayout
SolrLogLayout.CoreInfo
SolrLogLayout.Method
SolrPluginUtils	Utilities that may be of use to RequestHandlers.
SolrPluginUtils.DisjunctionMaxQueryParser	A subclass of SolrQueryParser that supports aliasing fields for constructing DisjunctionMaxQueries.
SolrPluginUtils.DisjunctionMaxQueryParser.Alias	A simple container for storing alias info
SolrPluginUtils.IdentityRegenerator	A CacheRegenerator that can be used whenever the items in the cache are not dependant on the current searcher.
SystemIdResolver	This is a helper class to support resolving of XIncludes or other hrefs inside XML files on top of a ResourceLoader.
TimeZoneUtils	Simple utilities for working with TimeZones
VersionedFile

Package org.apache.solr.util Description

Common utility classes used throughout Solr