public class LFUCache<K,V> extends java.lang.Object implements SolrCache<K,V>
ConcurrentLFUCache
,
SolrCache
SolrCache.State
SolrInfoMBean.Category
Modifier and Type | Field and Description |
---|---|
private int |
autowarmCount |
private ConcurrentLFUCache<K,V> |
cache |
private java.lang.String |
description |
private java.lang.String |
name |
private CacheRegenerator |
regenerator |
private int |
showItems |
private SolrCache.State |
state |
private java.util.List<ConcurrentLFUCache.Stats> |
statsList |
private java.lang.Boolean |
timeDecay |
private long |
warmupTime |
Constructor and Description |
---|
LFUCache() |
Modifier and Type | Method and Description |
---|---|
private static java.lang.String |
calcHitRatio(long lookups,
long hits) |
void |
clear()
:TODO: copy from Map
|
void |
close()
Frees any non-memory resources
|
V |
get(K key)
:TODO: copy from Map
|
SolrInfoMBean.Category |
getCategory()
Purpose of this Class
|
java.lang.String |
getDescription()
Simple one or two line description
|
java.net.URL[] |
getDocs()
Documentation URL list.
|
java.lang.String |
getName()
Simple common usage name, e.g.
|
java.lang.String |
getSource()
CVS Source, SVN Source, etc
|
java.lang.String |
getSourceId()
CVS Id, SVN Id, etc
|
SolrCache.State |
getState()
Returns the last State set on this instance
|
NamedList |
getStatistics()
Any statistics this instance would like to be publicly available via
the Solr Administration interface.
|
java.lang.String |
getVersion()
Simple common usage version, e.g.
|
java.lang.Object |
init(java.util.Map args,
java.lang.Object persistence,
CacheRegenerator regenerator)
The initialization routine.
|
java.lang.String |
name()
Name the Cache can be referenced with by SolrRequestHandlers.
|
V |
put(K key,
V value)
:TODO: copy from Map
|
void |
setState(SolrCache.State state)
Set different cache states.
|
int |
size()
:TODO: copy from Map
|
java.lang.String |
toString() |
void |
warm(SolrIndexSearcher searcher,
SolrCache old)
Warm this cache associated with
searcher using the old
cache object. |
private java.util.List<ConcurrentLFUCache.Stats> statsList
private long warmupTime
private java.lang.String name
private int autowarmCount
private SolrCache.State state
private CacheRegenerator regenerator
private java.lang.String description
private ConcurrentLFUCache<K,V> cache
private int showItems
private java.lang.Boolean timeDecay
public java.lang.Object init(java.util.Map args, java.lang.Object persistence, CacheRegenerator regenerator)
SolrCache
args
map.
The persistence object will exist across different lifetimes of similar caches. For example, all filter caches will share the same persistence object, sometimes at the same time (it must be threadsafe). If null is passed, then the cache implementation should create and return a new persistence object. If not null, the passed in object should be returned again.
Since it will exist across the lifetime of many caches, care should be taken to not reference any particular cache instance and prevent it from being garbage collected (no using inner classes unless they are static).
The persistence object is designed to be used as a way for statistics to accumulate across all instances of the same type of cache, however the object may be of any type desired by the cache implementation.
The CacheRegenerator
is what the cache uses during auto-warming to
renenerate an item in the new cache from an entry in the old cache.
public java.lang.String name()
SolrCache
public int size()
SolrCache
public void clear()
SolrCache
public void setState(SolrCache.State state)
SolrCache
public SolrCache.State getState()
SolrCache
getState
in interface SolrCache<K,V>
SolrCache.setState(org.apache.solr.search.SolrCache.State)
public void warm(SolrIndexSearcher searcher, SolrCache old) throws java.io.IOException
SolrCache
searcher
using the old
cache object. this
and old
will have the same concrete type.public void close()
SolrCache
public java.lang.String getName()
SolrInfoMBean
getName
in interface SolrInfoMBean
public java.lang.String getVersion()
SolrInfoMBean
getVersion
in interface SolrInfoMBean
public java.lang.String getDescription()
SolrInfoMBean
getDescription
in interface SolrInfoMBean
public SolrInfoMBean.Category getCategory()
SolrInfoMBean
getCategory
in interface SolrInfoMBean
public java.lang.String getSourceId()
SolrInfoMBean
getSourceId
in interface SolrInfoMBean
public java.lang.String getSource()
SolrInfoMBean
getSource
in interface SolrInfoMBean
public java.net.URL[] getDocs()
SolrInfoMBean
Suggested documentation URLs: Homepage for sponsoring project, FAQ on class usage, Design doc for class, Wiki, bug reporting URL, etc...
getDocs
in interface SolrInfoMBean
private static java.lang.String calcHitRatio(long lookups, long hits)
public NamedList getStatistics()
SolrInfoMBean
Any Object type may be stored in the list, but only the
toString()
representation will be used.
getStatistics
in interface SolrInfoMBean
public java.lang.String toString()
toString
in class java.lang.Object