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

Class org.apache.lucene.index.IndexWriter

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

org.apache.lucene.index.IndexWriter.rollback()
Close the IndexWriter without committing any changes that have occurred since the last commit (or since it was opened, if commit hasn't been called). This removes any temporary files that had been created, after which the state of the index will be the same as it was when commit() was last called or when this writer was first opened. This also clears a previous call to {@link #prepareCommit}. @throws IOException if there is a low-level IO error


            w.updateDocument(id, document);
//      w.commit();
        } catch (Exception e) {
            try {
                if (w != null) w.rollback();
            } catch (IOException ex) {
                ex.printStackTrace(System.err);
            }
            // TODO do stuff with exceptions
            e.printStackTrace(System.err);

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                maybeFailEngine(e, "start");
                if (this.indexWriter != null) {
                    try {
                        IndexWriter pending = indexWriter;
                        indexWriter = null;
                        pending.rollback();
                    } catch (IOException e1) {
                       e.addSuppressed(e1);
                    }
                }
                throw new EngineCreationFailureException(shardId, "failed to create engine", e);

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      PrintStream infoStream = iw.getInfoStream();
      if (infoStream != null && infoStream != System.out
          && infoStream != System.err) {
        infoStream.close();
      }
      iw.rollback();
      getRunData().setIndexWriter(null);
    }
    return 1;
  }
}

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