org.gcube.indexmanagement.lucenewrapper
Class LuceneSearchWorker

java.lang.Object
  java.lang.Thread
      org.gcube.indexmanagement.lucenewrapper.LuceneSearchWorker

All Implemented Interfaces:

Runnable

public class LuceneSearchWorker
extends Thread

A worker thread to take care of the ResultSet feeding after a query

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

LuceneSearchWorker(gr.uoa.di.madgik.grs.writer.RecordWriter<gr.uoa.di.madgik.grs.record.GenericRecord> rsWriter, org.apache.lucene.index.IndexReader reader, QueryTerm[] terms, org.apache.lucene.search.Hits queryHits, int numberOfHits, FullTextIndexType idxType, boolean isComplete, ArrayList<String> presentable, LinkedHashMap<String,String> projections, QuerySnippetTermsPair querySnippetTermsPair, RRadaptor adaptor)
The constructor

Method Summary

int	getFreq(Enumeration fields, String termString, int docID) A method used to the Term frequency of the term termString for multiple fields in the document(docID).
int	getFreq(org.apache.lucene.index.Term t, int docID) A method used to count the occurrence frequency of a Term in a Document.
void	run()
void	setMaximumSnippetsCount(Integer maximumSnippetsCount)
void	setSnippetSize(Integer snippetSize)

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

LuceneSearchWorker

public LuceneSearchWorker(gr.uoa.di.madgik.grs.writer.RecordWriter<gr.uoa.di.madgik.grs.record.GenericRecord> rsWriter,
                          org.apache.lucene.index.IndexReader reader,
                          QueryTerm[] terms,
                          org.apache.lucene.search.Hits queryHits,
                          int numberOfHits,
                          FullTextIndexType idxType,
                          boolean isComplete,
                          ArrayList<String> presentable,
                          LinkedHashMap<String,String> projections,
                          QuerySnippetTermsPair querySnippetTermsPair,
                          RRadaptor adaptor)

The constructor

Parameters:

rsWriter - - The ResultSet writer to be used by the new LuceneSearchWorker thread.

reader - - An IndexReader to be used in order to find Query statistics.

terms - - QueryTerms from the Lucene query.

queryHits - - The hits resulting from the Lucene query

numberOfHits - - The number of hits from the Lucene query

idxType - - The IndexType of the queried Index.

presentable -

querySnippetTermsPair -

Method Detail

setSnippetSize

public void setSnippetSize(Integer snippetSize)

setMaximumSnippetsCount

public void setMaximumSnippetsCount(Integer maximumSnippetsCount)

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

getFreq

public int getFreq(org.apache.lucene.index.Term t,
                   int docID)
            throws IOException

A method used to count the occurrence frequency of a Term in a Document.

Parameters:

t - - The Term of which to count the occurrences.

docID - - The Document in which to count the Term frequency.

Returns:

The requested Term frequency.

Throws:

IOException - An error reading from the Lucene Index.

getFreq

public int getFreq(Enumeration fields,
                   String termString,
                   int docID)
            throws IOException

A method used to the Term frequency of the term termString for multiple fields in the document(docID).

Parameters:

fields - - The fields to include in term fequency count.

termString - - The term text of which to count the occurrences.

docID - - The document in which to count the term frequency.

Returns:

The requested Term frequency.

Throws:

IOException - An error reading from the Lucene Index.