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return document count from builder
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@ -62,7 +62,7 @@ impl<W: io::Write + io::Seek> DocumentBatchBuilder<W> {
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/// This method must be called after the document addition is terminated. It will put the
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/// metadata at the end of the file, and write the metadata offset at the beginning on the
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/// file.
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pub fn finish(self) -> Result<(), Error> {
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pub fn finish(self) -> Result<usize, Error> {
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let Self { inner: ByteCounter { mut writer, count: offset }, index, count, .. } = self;
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let meta = DocumentsMetadata { count, index };
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@ -74,7 +74,7 @@ impl<W: io::Write + io::Seek> DocumentBatchBuilder<W> {
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writer.flush()?;
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Ok(())
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Ok(count)
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}
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/// Extends the builder with json documents from a reader.
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