Struct tantivy::postings::InvertedIndexSerializer

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pub struct InvertedIndexSerializer { /* private fields */ }
Expand description

InvertedIndexSerializer is in charge of serializing postings on disk, in the

  • .idx (inverted index)
  • .pos (positions file)
  • .term (term dictionary)

PostingsWriter are in charge of pushing the data to the serializer.

The serializer expects to receive the following calls in this order :

  • set_field(...)
  • new_term(...)
  • write_doc(...)
  • write_doc(...)
  • write_doc(...)
  • close_term()
  • new_term(...)
  • write_doc(...)
  • close_term()
  • set_field(...)
  • close()

Terms have to be pushed in a lexicographically-sorted order. Within a term, documents have to be pushed in increasing order.

A description of the serialization format is available here.

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impl InvertedIndexSerializer

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pub fn open(segment: &mut Segment) -> Result<InvertedIndexSerializer>

Open a new InvertedIndexSerializer for the given segment

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pub fn new_field( &mut self, field: Field, total_num_tokens: u64, fieldnorm_reader: Option<FieldNormReader> ) -> Result<FieldSerializer<'_>>

Must be called before starting pushing terms of a given field.

Loads the indexing options for the given field.

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pub fn close(self) -> Result<()>

Closes the serializer.

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