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

Class org.apache.lucene.index.IndexWriter

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

org.apache.lucene.index.IndexWriter.addDocument()
Adds a document to this index. If the document contains more than {@link #setMaxFieldLength(int)} terms for a given field, the remainder arediscarded.
Note that if an Exception is hit (for example disk full) then the index will be consistent, but this document may not have been added. Furthermore, it's possible the index will have one segment in non-compound format even when using compound files (when a merge has partially succeeded).

This method periodically flushes pending documents to the Directory (see above), and also periodically triggers segment merges in the index according to the {@link MergePolicy} in use.
Merges temporarily consume space in the directory. The amount of space required is up to 1X the size of all segments being merged, when no readers/searchers are open against the index, and up to 2X the size of all segments being merged when readers/searchers are open against the index (see {@link #optimize()} for details). The sequence ofprimitive merge operations performed is governed by the merge policy.
Note that each term in the document can be no longer than 16383 characters, otherwise an IllegalArgumentException will be thrown.

Note that it's possible to create an invalid Unicode string in java if a UTF16 surrogate pair is malformed. In this case, the invalid characters are silently replaced with the Unicode replacement character U+FFFD.

NOTE: if this method hits an OutOfMemoryError you should immediately close the writer. See above for details.
@throws CorruptIndexException if the index is corrupt @throws IOException if there is a low-level IO error




    // apply deletions dynamically
    filter = new CachingWrapperFilter(startFilter, CachingWrapperFilter.DeletesMode.DYNAMIC);


    writer.addDocument(doc);
    reader = refreshReader(reader);
    searcher = new IndexSearcher(reader);
        
    docs = searcher.search(new MatchAllDocsQuery(), filter, 1);
    assertEquals("[query + filter] Should find a hit...", 1, docs.totalHits);

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    // create dir data
    IndexWriter indexWriter = new IndexWriter(dir, new StandardAnalyzer(org.apache.lucene.util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.UNLIMITED);
    for (int i = 0; i < 500; i++) {
      Document document = new Document();
      assembleDocument(document, i);
      indexWriter.addDocument(document);
    }
    indexWriter.close();


    // test ii writer
    InstantiatedIndexWriter instantiatedIndexWriter = ii.indexWriterFactory(new StandardAnalyzer(org.apache.lucene.util.Version.LUCENE_CURRENT), true);

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    RAMDirectory ramDir1 = new RAMDirectory();
    IndexWriter writer1 = new IndexWriter(ramDir1, new StandardAnalyzer(TEST_VERSION), true, IndexWriter.MaxFieldLength.UNLIMITED);
    Document d = new Document();
    Field f = new Field(FIELD_NAME, "multiOne", Field.Store.YES, Field.Index.ANALYZED);
    d.add(f);
    writer1.addDocument(d);
    writer1.optimize();
    writer1.close();
    IndexReader reader1 = IndexReader.open(ramDir1, true);


    // setup index 2

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    RAMDirectory ramDir2 = new RAMDirectory();
    IndexWriter writer2 = new IndexWriter(ramDir2, new StandardAnalyzer(TEST_VERSION), true, IndexWriter.MaxFieldLength.UNLIMITED);
    d = new Document();
    f = new Field(FIELD_NAME, "multiTwo", Field.Store.YES, Field.Index.ANALYZED);
    d.add(f);
    writer2.addDocument(d);
    writer2.optimize();
    writer2.close();
    IndexReader reader2 = IndexReader.open(ramDir2, true);


    IndexSearcher searchers[] = new IndexSearcher[2];

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    return doc;
  }
  
  private void makeIndex() throws IOException {
    IndexWriter writer = new IndexWriter( dir, a, MaxFieldLength.LIMITED );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field del" ) );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field" ) );
    writer.optimize();
    writer.close();

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  }
  
  private void makeIndex() throws IOException {
    IndexWriter writer = new IndexWriter( dir, a, MaxFieldLength.LIMITED );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field del" ) );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field" ) );
    writer.optimize();
    writer.close();
  }

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  private void makeIndex() throws IOException {
    IndexWriter writer = new IndexWriter( dir, a, MaxFieldLength.LIMITED );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field del" ) );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field" ) );
    writer.optimize();
    writer.close();
  }

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  private void makeIndex() throws IOException {
    IndexWriter writer = new IndexWriter( dir, a, MaxFieldLength.LIMITED );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field del" ) );
    writer.addDocument( doc( "t_text1", "random words for highlighting tests del" ) );
    writer.addDocument( doc( "t_text1", "more random words for second field" ) );
    writer.optimize();
    writer.close();
  }
  
  private void deleteDocument() throws IOException {

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                                          new IndexWriter.MaxFieldLength(25000));
    Document doc = new Document();
    String text = "This is the text to be indexed.";
    doc.add(new Field("fieldname", text, Field.Store.YES,
        Field.Index.ANALYZED));
    iwriter.addDocument(doc);
    iwriter.close();
    
    // Now search the index:
    IndexSearcher isearcher = new IndexSearcher(directory, true); // read-only=true
    // Parse a simple query that searches for "text":

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    }
    Document doc = new Document();
    NumericField nfield = new NumericField(NUMERIC_FIELD_NAME, Store.YES, true);
    nfield.setIntValue(1);
    doc.add(nfield);
    writer.addDocument(doc, analyzer);
    nfield = new NumericField(NUMERIC_FIELD_NAME, Store.YES, true);
    nfield.setIntValue(3);
    doc = new Document();
    doc.add(nfield);
    writer.addDocument(doc, analyzer);

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