Abstract API that consumes numeric, binary and sorted docvalues. Concrete implementations of this actually do "something" with the docvalues (write it into the index in a specific format).

The lifecycle is:

  1. DocValuesConsumer is created by DocValuesFormat#fieldsConsumer(SegmentWriteState) or NormsFormat#normsConsumer(SegmentWriteState).
  2. #addNumericField, #addBinaryField, or #addSortedField are called for each Numeric, Binary, or Sorted docvalues field. The API is a "pull" rather than "push", and the implementation is free to iterate over the values multiple times (Iterable#iterator()).
  3. After all fields are added, the consumer is #closed.
@lucene.experimental
Наследование: IDisposable
Документация по классу DocValuesConsumer
Пример #1
0
        internal override void Flush(SegmentWriteState state, DocValuesConsumer dvConsumer)
        {
            int maxDoc = state.SegmentInfo.DocCount;

            Debug.Assert(Pending.Size() == maxDoc);
            int valueCount = Hash.Size();

            int[] sortedValues = Hash.Sort(BytesRef.UTF8SortedAsUnicodeComparer);
            int[] ordMap = new int[valueCount];

            for (int ord = 0; ord < valueCount; ord++)
            {
                ordMap[sortedValues[ord]] = ord;
            }

            dvConsumer.AddSortedField(FieldInfo, GetBytesRefEnumberable(valueCount, sortedValues),
                // doc -> ord
                                      GetOrdsEnumberable(maxDoc, ordMap));
        }