org.apache.lucene.search.Hits.java搜索索引

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• 
  
• 
  
• /**
  
• *TriestoaddnewdocumentstohitDocs.
  
• *Ensuresthatthehitnumbered<code>min</code>hasbeenretrieved.
  
• */
  
• privatefinalvoidgetMoreDocs(intmin)throwsIOException{
  
• if(hitDocs.size()>min){
  
• min=hitDocs.size();
  
• }
  
• 
  
• intn=min*2;//double#retrieved
  
• TopDocstopDocs=(sort==null)?searcher.search(weight,filter,n):
  
• searcher.search(weight,filter,n,sort);
  
• 
  
• length=topDocs.totalHits;
  
• ScoreDoc[]scoreDocs=topDocs.scoreDocs;
  
• 
  
• floatscoreNorm=1.0f;
  
• 
  
• if(length>0&&topDocs.getMaxScore()>1.0f){
  
• scoreNorm=1.0f/topDocs.getMaxScore();
  
• }
  
• 
  
• intstart=hitDocs.size()-nDeletedHits;
  
• 
  
• //anynewdeletions?
  
• intnDels2=countDeletions(searcher);
  
• debugCheckedForDeletions=false;
  
• if(nDeletions<0||nDels2>nDeletions){
  
• //eitherwecannotcountdeletions,orsome"previouslyvalidhits"
  
• mighthavebeendeleted,sofindexactstartpoint
  
• nDeletedHits=0;
  
• debugCheckedForDeletions=true;
  
• inti2=0;
  
• for(inti1=0;i1<hitDocs.size()&&i2<scoreDocs.length;i1++){
  
• intid1=((HitDoc)hitDocs.get(i1)).id;
  
• intid2=scoreDocs[i2].doc;
  
• if(id1==id2){
  
• i2++;
  
• }else{
  
• nDeletedHits++;
  
• }
  
• }
  
• start=i2;
  
• }
  
• 
  
• intend=scoreDocs.length<length?scoreDocs.length:length;
  
• length+=nDeletedHits;
  
• for(inti=start;i<end;i++){
  
• hitDocs.addElement(newHitDoc(scoreDocs.score*scoreNorm,
  
• scoreDocs.doc));
  
• }
  
• 
  
• nDeletions=nDels2;
  
• }