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

org.apache.lucene.index.IndexWriter.addDocuments()

Atomically adds a block of documents with sequentially assigned document IDs, such that an external reader will see all or none of the documents.

WARNING: the index does not currently record which documents were added as a block. Today this is fine, because merging will preserve the block (as long as none them were deleted). But it's possible in the future that Lucene may more aggressively re-order documents (for example, perhaps to obtain better index compression), in which case you may need to fully re-index your documents at that time.

See {@link #addDocument(Document)} for details onindex and IndexWriter state after an Exception, and flushing/merging temporary free space requirements.

NOTE: tools that do offline splitting of an index (for example, IndexSplitter in contrib) or re-sorting of documents (for example, IndexSorter in contrib) are not aware of these atomically added documents and will likely break them up. Use such tools at your own risk!

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 @lucene.experimental

    directory = newDirectory();
    final IndexWriterConfig config = new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    final IndexWriter indexWriter = new IndexWriter(directory, config);
    for (int i = 0; i < AMOUNT_OF_SEGMENTS; i++) {
      List<Document> segmentDocs = createDocsForSegment(i);
      indexWriter.addDocuments(segmentDocs);
      indexWriter.commit();
    }
    indexReader = DirectoryReader.open(indexWriter, random().nextBoolean());
    indexWriter.close();
    indexSearcher = new IndexSearcher(indexReader);

          all.append(' ');
        }
        LOGGER.fine("Updated field all for "+ doc.getFieldable(AWF__ID) + " with value: " + all);
        doc.add(new Field("all", all.toString(), Field.Store.NO, Field.Index.ANALYZED));
      }
      indexWriter.addDocuments(Arrays.asList(docs));
      LOGGER.fine("reindexing Lucene...");
      indexWriter.commit();
      indexWriter.close();
      LOGGER.fine("reindexing Lucene... DONE!");

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