org.apache.lucene.search
Class RemoteCachingWrapperFilter
java.lang.Object
org.apache.lucene.search.Filter
org.apache.lucene.search.RemoteCachingWrapperFilter
- All Implemented Interfaces:
- Serializable
public class RemoteCachingWrapperFilter
- extends Filter
Provides caching of Filter
s themselves on the remote end of an RMI connection.
The cache is keyed on Filter's hashCode(), so if it sees the same filter twice
it will reuse the original version.
NOTE: This does NOT cache the Filter bits, but rather the Filter itself.
Thus, this works hand-in-hand with CachingWrapperFilter
to keep both
file Filter cache and the Filter bits on the remote end, close to the searcher.
Usage:
To cache a result you must do something like
RemoteCachingWrapperFilter f = new RemoteCachingWrapperFilter(new CachingWrapperFilter(myFilter));
- Version:
- $Id:$
- See Also:
- Serialized Form
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
filter
protected Filter filter
RemoteCachingWrapperFilter
public RemoteCachingWrapperFilter(Filter filter)
bits
public BitSet bits(IndexReader reader)
throws IOException
- Deprecated. Use
getDocIdSet(IndexReader)
instead.
- Uses the
FilterManager
to keep the cache for a filter on the
searcher side of a remote connection.
- Overrides:
bits
in class Filter
- Parameters:
reader
- the index reader for the Filter
- Returns:
- the bitset
- Throws:
IOException
getDocIdSet
public DocIdSet getDocIdSet(IndexReader reader)
throws IOException
- Uses the
FilterManager
to keep the cache for a filter on the
searcher side of a remote connection.
- Overrides:
getDocIdSet
in class Filter
- Parameters:
reader
- the index reader for the Filter
- Returns:
- the DocIdSet
- Throws:
IOException
- See Also:
DocIdBitSet
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