com.sun.labs.minion.classification
Class ClusterDiskPartition

java.lang.Object
  com.sun.labs.minion.indexer.partition.Partition
      com.sun.labs.minion.indexer.partition.DiskPartition
          com.sun.labs.minion.classification.ClusterDiskPartition

All Implemented Interfaces:

Closeable, com.sun.labs.util.props.Component, com.sun.labs.util.props.Configurable, java.lang.Comparable<Partition>

public class ClusterDiskPartition
extends DiskPartition

A disk partition that will hold classifier data.

Field Summary

protected FeatureClusterer	clustererInstance
protected static java.lang.String	logTag
protected ClassifierModel	modelInstance

Fields inherited from class com.sun.labs.minion.indexer.partition.DiskPartition

BUFF_SIZE, deletions, delFile, delFileLock, docDict, docDictFile, docPostFile, documentDictFactory, dvl, ignored, mainDict, mainFiles, MATCH_CUT_OFF, MIN_LEN, removedFile, termCache

Fields inherited from class com.sun.labs.minion.indexer.partition.Partition

DICT_OFFSETS_SIZE, docDictFactory, entryClass, entryName, indexConfig, mainDictFactory, mainDictFile, mainPostFiles, manager, maxID, nEntries, partNumber, PROP_DOC_DICT_FACTORY, PROP_INDEX_CONFIG, PROP_MAIN_DICT_FACTORY, PROP_PARTITION_MANAGER, stats

Constructor Summary

ClusterDiskPartition(java.lang.Integer partNum, ClusterManager manager, DictionaryFactory mainDictFactory, DictionaryFactory documentDictFactory)
Constructs a disk partition for a specific partition number.

Method Summary

boolean	docsAreMerged() Returns true if documents in this partition type can be merged - that is, that the postings of two same-named docs in different partitions will be combined.
FeatureCluster	getCluster(java.lang.String clusterName) Gets a cluster by name
FeatureClusterSet	getClustersContaining(java.lang.String fname) Gets the clusters that contain the given feature
protected FeatureCluster	makeCluster(DocKeyEntry docEntry)
protected static void	reap(PartitionManager m, int n) Reaps the given classifier partition.

Methods inherited from class com.sun.labs.minion.indexer.partition.DiskPartition

close, close, createRemoveFile, delete, deleteDocument, deleteDocument, getAverageDocumentLength, getCloseTime, getDeletedDocumentsMap, getDelMap, getDocIDMap, getDocumentIterator, getDocumentIterator, getDocumentLength, getDocumentTerm, getDocumentTerm, getDocumentVectorLength, getDocumentVectorLength, getDocumentVectorLength, getDVL, getInputBuffers, getMainDictionary, getMainDictionaryIterator, getMainDictionaryIterator, getMainIterator, getMaxDocumentID, getMaxTermID, getNDocs, getNEntries, getNTokens, getTerm, getTerm, getTerm, getTerm, getTermCache, initAll, initDocDict, initDVL, initMainDict, initMainFiles, isDeleted, isIndexed, merge, merge, mergeCustom, normalize, setCloseTime, syncDeletedMap, toString, updatePartition

Methods inherited from class com.sun.labs.minion.indexer.partition.Partition

compareTo, getAllFiles, getAllFiles, getDocFiles, getDocFiles, getIndexConfig, getMainFiles, getMainFiles, getManager, getName, getNumPostingsChannels, getPartitionNumber, getQueryConfig, getStats, newProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

logTag

protected static java.lang.String logTag

modelInstance

protected ClassifierModel modelInstance

clustererInstance

protected FeatureClusterer clustererInstance

Constructor Detail

ClusterDiskPartition

public ClusterDiskPartition(java.lang.Integer partNum,
                            ClusterManager manager,
                            DictionaryFactory mainDictFactory,
                            DictionaryFactory documentDictFactory)
                     throws java.io.IOException

Constructs a disk partition for a specific partition number.

Parameters:

partNum - the number of this partition

manager - the classifier manager for this partition

Throws:

java.io.IOException

Method Detail

getCluster

public FeatureCluster getCluster(java.lang.String clusterName)

Gets a cluster by name

Parameters:

clusterName - the name of the cluster

Returns:

the cluster with the given name

getClustersContaining

public FeatureClusterSet getClustersContaining(java.lang.String fname)

Gets the clusters that contain the given feature

Parameters:

fname - the feature to find

Returns:

the cluster containing that feature

makeCluster

protected FeatureCluster makeCluster(DocKeyEntry docEntry)

reap

protected static void reap(PartitionManager m,
                           int n)

Reaps the given classifier partition.

Parameters:

m - The manager associated with the partition.

n - The partition number to reap.

docsAreMerged

public boolean docsAreMerged()

Returns true if documents in this partition type can be merged - that is, that the postings of two same-named docs in different partitions will be combined.

Overrides:

docsAreMerged in class DiskPartition

Returns:

true for clusters