Examples of org.apache.lucene.index.IndexWriter.deleteDocuments()

Class org.apache.lucene.index.IndexWriter

Examples of org.apache.lucene.index.IndexWriter.deleteDocuments()

org.apache.lucene.index.IndexWriter.deleteDocuments()
Deletes the document(s) containing term.
NOTE: if this method hits an OutOfMemoryError you should immediately close the writer. See above for details.
@param term the term to identify the documents to be deleted @throws CorruptIndexException if the index is corrupt @throws IOException if there is a low-level IO error

        assertEquals(36, hits.length);
        
        reader.close();
        
        dir.tweakBufferSizes();
        writer.deleteDocuments(new Term("id", "4"));
        reader = DirectoryReader.open(writer, true);
        searcher = newSearcher(reader);


        hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();

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    writer.close();
  }
  
  private void deleteDocument() throws IOException {
    IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false)).setOpenMode(OpenMode.APPEND));
    writer.deleteDocuments( new Term( "t_text1", "del" ) );
    // To see negative idf, keep comment the following line
    //writer.forceMerge(1);
    writer.close();
  }

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  public void delete(T item) throws CorruptIndexException, IOException, ItemException {
    IndexPathProperty pathIndex = new IndexPathProperty();
    FSDirectory directory = FSDirectory.open(new File(pathIndex.getValue()));
    IndexWriter writer = new IndexWriter(directory, new StandardAnalyzer(Version.LUCENE_30), IndexWriter.MaxFieldLength.LIMITED);
    writer.deleteDocuments(new Term(type + "_id", item.getId().toString()));
    writer.optimize();
    writer.close();
    directory.close();
  }

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                    if ( record != null )
                    {
                        Term term = new Term( LuceneDocumentMaker.PRIMARY_KEY, record.getPrimaryKey() );
    
                        indexWriter.deleteDocuments( term );
    
                        Document document = indexHandlers.getConverter().convert( record );
    
                        indexWriter.addDocument( document );
                    }

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                if ( record != null )
                {
                    Term term = new Term( LuceneDocumentMaker.PRIMARY_KEY, record.getPrimaryKey() );
    
                    indexWriter.deleteDocuments( term );
    
                    Document document = indexHandlers.getConverter().convert( record );
    
                    indexWriter.addDocument( document );
                }

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      writer = new IndexWriter(dir, false, new WhitespaceAnalyzer(), false);
      for(int j=0;j<17;j++) {
        addDoc(writer);
      }
      // Delete all docs:
      writer.deleteDocuments(searchTerm);


      searcher = new IndexSearcher(dir);
      hits = searcher.search(new TermQuery(searchTerm));
      assertEquals("reader incorrectly sees changes from writer with autoCommit disabled", 14, hits.length());
      searcher.close();

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      }
    }
    if (VERBOSE) {
      System.out.println("TEST: now delete id=77");
    }
    w.deleteDocuments(new Term("id", "77"));


    IndexReader r = DirectoryReader.open(w, true);
    
    assertEquals(NUM_DOCS-1, r.numDocs());
    IndexSearcher s = newSearcher(r);

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    r.close();


    if (VERBOSE) {
      System.out.println("\nTEST: now delete 2nd doc");
    }
    w.deleteDocuments(new Term("id", "44"));


    if (VERBOSE) {
      System.out.println("\nTEST: now force merge");
    }
    w.forceMerge(1);

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        Term bbb = new Term("content", "bbb");
        
        reader.close();
        
        dir.tweakBufferSizes();
        writer.deleteDocuments(new Term("id", "0"));
        reader = DirectoryReader.open(writer, true);
        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();
        assertEquals(36, hits.length);

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        assertEquals(36, hits.length);
        
        reader.close();
        
        dir.tweakBufferSizes();
        writer.deleteDocuments(new Term("id", "4"));
        reader = DirectoryReader.open(writer, true);
        searcher = newSearcher(reader);


        hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();

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