Examples of Lucene46SegmentInfoFormat | massapi.com

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Examples of Lucene46SegmentInfoFormat

org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoFormat
Lucene 4.6 Segment info format.
Files:
- .si: Header, SegVersion, SegSize, IsCompoundFile, Diagnostics, Files
Data types:
- Header --> {@link CodecUtil#writeHeader CodecHeader}
- SegSize --> {@link DataOutput#writeInt Int32}
- SegVersion --> {@link DataOutput#writeString String}
- Files --> {@link DataOutput#writeStringSet Set<String>}
- Diagnostics --> {@link DataOutput#writeStringStringMap Map<String,String>}
- IsCompoundFile --> {@link DataOutput#writeByte Int8}
Field Descriptions:
- SegVersion is the code version that created the segment.
- SegSize is the number of documents contained in the segment index.
- IsCompoundFile records whether the segment is written as a compound file or not. If this is -1, the segment is not a compound file. If it is 1, the segment is a compound file.
- Checksum contains the CRC32 checksum of all bytes in the segments_N file up until the checksum. This is used to verify integrity of the file on opening the index.
- The Diagnostics Map is privately written by {@link IndexWriter}, as a debugging aid, for each segment it creates. It includes metadata like the current Lucene version, OS, Java version, why the segment was created (merge, flush, addIndexes), etc.
- Files is a list of files referred to by this segment.
@see SegmentInfos @lucene.experimental

Examples of org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoFormat

      for(String fileName : dir.listAll()) {
        if (fileName.endsWith(".si")) {
          String segName = IndexFileNames.parseSegmentName(fileName);
          if (segSeen.contains(segName) == false) {
            segSeen.add(segName);
            SegmentInfo si = new Lucene46SegmentInfoFormat().getSegmentInfoReader().read(dir, segName, IOContext.DEFAULT);
            si.setCodec(codec);
            SegmentCommitInfo sci = new SegmentCommitInfo(si, 0, -1, -1, -1);
            SegmentReader sr = new SegmentReader(sci, 1, IOContext.DEFAULT);
            try {
              thread0Count += sr.docFreq(new Term("field", "threadID0"));

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