org.apache.lucene.index
Class SegmentWriteState
java.lang.Object
org.apache.lucene.index.SegmentWriteState
public class SegmentWriteState
- extends Object
- WARNING: This API is experimental and might change in incompatible ways in the next release.
Constructor Summary |
SegmentWriteState(PrintStream infoStream,
Directory directory,
String segmentName,
org.apache.lucene.index.FieldInfos fieldInfos,
int numDocs,
int termIndexInterval,
org.apache.lucene.index.BufferedDeletes segDeletes)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
infoStream
public final PrintStream infoStream
directory
public final Directory directory
segmentName
public final String segmentName
fieldInfos
public final org.apache.lucene.index.FieldInfos fieldInfos
numDocs
public final int numDocs
hasVectors
public boolean hasVectors
segDeletes
public final org.apache.lucene.index.BufferedDeletes segDeletes
deletedDocs
public BitVector deletedDocs
termIndexInterval
public final int termIndexInterval
- Expert: The fraction of terms in the "dictionary" which should be stored
in RAM. Smaller values use more memory, but make searching slightly
faster, while larger values use less memory and make searching slightly
slower. Searching is typically not dominated by dictionary lookup, so
tweaking this is rarely useful.
skipInterval
public final int skipInterval
- Expert: The fraction of TermDocs entries stored in skip tables,
used to accelerate
TermDocs.skipTo(int)
. Larger values result in
smaller indexes, greater acceleration, but fewer accelerable cases, while
smaller values result in bigger indexes, less acceleration and more
accelerable cases. More detailed experiments would be useful here.
- See Also:
- Constant Field Values
maxSkipLevels
public final int maxSkipLevels
- Expert: The maximum number of skip levels. Smaller values result in
slightly smaller indexes, but slower skipping in big posting lists.
- See Also:
- Constant Field Values
SegmentWriteState
public SegmentWriteState(PrintStream infoStream,
Directory directory,
String segmentName,
org.apache.lucene.index.FieldInfos fieldInfos,
int numDocs,
int termIndexInterval,
org.apache.lucene.index.BufferedDeletes segDeletes)
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