Java Doc for LogDocMergePolicy.java in  » Net » lucene-connector » org » apache » lucene » index » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » lucene connector » org.apache.lucene.index 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.lucene.index.MergePolicy
      org.apache.lucene.index.LogMergePolicy
         org.apache.lucene.index.LogDocMergePolicy

LogDocMergePolicy
public class LogDocMergePolicy extends LogMergePolicy (Code)
This is a LogMergePolicy that measures size of a segment as the number of documents (not taking deletions into account).


Field Summary
final public static  intDEFAULT_MIN_MERGE_DOCS
     Default minimum segment size.

Constructor Summary
public  LogDocMergePolicy()
    

Method Summary
public  intgetMinMergeDocs()
     Get the minimum size for a segment to remain un-merged.
public  voidsetMinMergeDocs(int minMergeDocs)
     Sets the minimum size for the lowest level segments. Any segments below this size are considered to be on the same level (even if they vary drastically in size) and will be merged whenever there are mergeFactor of them.
protected  longsize(SegmentInfo info)
    

Field Detail
DEFAULT_MIN_MERGE_DOCS
final public static int DEFAULT_MIN_MERGE_DOCS(Code)
Default minimum segment size. @see setMinMergeDocs




Constructor Detail
LogDocMergePolicy
public LogDocMergePolicy()(Code)




Method Detail
getMinMergeDocs
public int getMinMergeDocs()(Code)
Get the minimum size for a segment to remain un-merged.
See Also:   LogDocMergePolicy.setMinMergeDocs
See Also:    *



setMinMergeDocs
public void setMinMergeDocs(int minMergeDocs)(Code)
Sets the minimum size for the lowest level segments. Any segments below this size are considered to be on the same level (even if they vary drastically in size) and will be merged whenever there are mergeFactor of them. This effectively truncates the "long tail" of small segments that would otherwise be created into a single level. If you set this too large, it could greatly increase the merging cost during indexing (if you flush many small segments).



size
protected long size(SegmentInfo info)(Code)



Fields inherited from org.apache.lucene.index.LogMergePolicy
final public static int DEFAULT_MAX_MERGE_DOCS(Code)(Java Doc)
final public static int DEFAULT_MERGE_FACTOR(Code)(Java Doc)
final public static double LEVEL_LOG_SPAN(Code)(Java Doc)
int maxMergeDocs(Code)(Java Doc)
long maxMergeSize(Code)(Java Doc)
long minMergeSize(Code)(Java Doc)

Methods inherited from org.apache.lucene.index.LogMergePolicy
public void close()(Code)(Java Doc)
public MergeSpecification findMerges(SegmentInfos infos, IndexWriter writer) throws IOException(Code)(Java Doc)
public MergeSpecification findMergesForOptimize(SegmentInfos infos, IndexWriter writer, int maxNumSegments, Set segmentsToOptimize) throws IOException(Code)(Java Doc)
public int getMaxMergeDocs()(Code)(Java Doc)
public int getMergeFactor()(Code)(Java Doc)
public boolean getUseCompoundDocStore()(Code)(Java Doc)
public boolean getUseCompoundFile()(Code)(Java Doc)
public void setMaxMergeDocs(int maxMergeDocs)(Code)(Java Doc)
public void setMergeFactor(int mergeFactor)(Code)(Java Doc)
public void setUseCompoundDocStore(boolean useCompoundDocStore)(Code)(Java Doc)
public void setUseCompoundFile(boolean useCompoundFile)(Code)(Java Doc)
abstract protected long size(SegmentInfo info) throws IOException(Code)(Java Doc)
public boolean useCompoundDocStore(SegmentInfos infos)(Code)(Java Doc)
public boolean useCompoundFile(SegmentInfos infos, SegmentInfo info)(Code)(Java Doc)

Methods inherited from org.apache.lucene.index.MergePolicy
abstract void close()(Code)(Java Doc)
abstract MergeSpecification findMerges(SegmentInfos segmentInfos, IndexWriter writer) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract MergeSpecification findMergesForOptimize(SegmentInfos segmentInfos, IndexWriter writer, int maxSegmentCount, Set segmentsToOptimize) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract boolean useCompoundDocStore(SegmentInfos segments)(Code)(Java Doc)
abstract boolean useCompoundFile(SegmentInfos segments, SegmentInfo newSegment)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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