net.conquiris.lucene.search
Class GuavaCachingFilter

java.lang.Object
  org.apache.lucene.search.Filter
      net.conquiris.lucene.search.GuavaCachingFilter

All Implemented Interfaces:

Serializable

public final class GuavaCachingFilter
extends Filter

A wrapping filter based on Guava Cache. Uses a caching mode equivalent to Lucene's DeletesMode.RECACHE.

Author:

Andres Rodriguez

See Also:

Serialized Form

Constructor Summary

GuavaCachingFilter(Filter filter)
Constructor with a maximum size of 100 elements and a expiration time of 10 minutes.

GuavaCachingFilter(Filter filter, int size, long duration, TimeUnit unit)
Constructor.

Method Summary

boolean	equals(Object o)
DocIdSet	getDocIdSet(IndexReader reader)
int	hashCode()
CacheStats	stats() Returns a current snapshot of this cache's cumulative statistics.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GuavaCachingFilter

public GuavaCachingFilter(Filter filter,
                          int size,
                          long duration,
                          TimeUnit unit)

Constructor.

Parameters:

filter - Filter to cache results of.

size - the maximum size of the cache.

duration - the length of time after an entry is last accessed that it should be automatically removed.

unit - the unit that duration is expressed in

Throws:

IllegalArgumentException - if size is negative

IllegalArgumentException - if duration is negative

GuavaCachingFilter

public GuavaCachingFilter(Filter filter)

Constructor with a maximum size of 100 elements and a expiration time of 10 minutes.

Parameters:

filter - Filter to cache results of

Method Detail

getDocIdSet

public DocIdSet getDocIdSet(IndexReader reader)
                     throws IOException

Specified by:

getDocIdSet in class Filter

Throws:

IOException

stats

public CacheStats stats()

Returns a current snapshot of this cache's cumulative statistics.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object