1Lucy::Index::SegWriter(U3spemr)Contributed Perl DocumentLautciyo:n:Index::SegWriter(3pm)
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NAME

6       Lucy::Index::SegWriter - Write one segment of an index.
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DESCRIPTION

9       SegWriter is a conduit through which information fed to Indexer passes.
10       It manages Segment and Inverter, invokes the Analyzer chain, and feeds
11       low level DataWriters such as PostingListWriter and DocWriter.
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13       The sub-components of a SegWriter are determined by Architecture.
14       DataWriter components which are added to the stack of writers via
15       add_writer() have Add_Inverted_Doc() invoked for each document supplied
16       to SegWriter’s add_doc().
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METHODS

19   register
20           $seg_writer->register(
21               api       => $api,        # required
22               component => $component,  # required
23           );
24
25       Register a DataWriter component with the SegWriter.  (Note that
26       registration simply makes the writer available via fetch(), so you may
27       also want to call add_writer()).
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29       •   api - The name of the DataWriter api which "writer" implements.
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31       •   component - A DataWriter.
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33   fetch
34           my $obj = $seg_writer->fetch($api);
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36       Retrieve a registered component.
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38       •   api - The name of the DataWriter api which the component
39           implements.
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41   add_writer
42           $seg_writer->add_writer($writer);
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44       Add a DataWriter to the SegWriter’s stack of writers.
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46   add_doc
47           $seg_writer->add_doc(
48               doc   => $doc,    # required
49               boost => $boost,  # default: 1.0
50           );
51
52       Add a document to the segment.  Inverts "doc", increments the Segment’s
53       internal document id, then calls Add_Inverted_Doc(), feeding all sub-
54       writers.
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56   add_segment
57           $seg_writer->add_segment(
58               reader  => $reader,   # required
59               doc_map => $doc_map,  # default: undef
60           );
61
62       Add content from an existing segment into the one currently being
63       written.
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65       •   reader - The SegReader containing content to add.
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67       •   doc_map - An array of integers mapping old document ids to new.
68           Deleted documents are mapped to 0, indicating that they should be
69           skipped.
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71   finish
72           $seg_writer->finish();
73
74       Complete the segment: close all streams, store metadata, etc.
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INHERITANCE

77       Lucy::Index::SegWriter isa Lucy::Index::DataWriter isa Clownfish::Obj.
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81perl v5.38.0                      2023-07-20       Lucy::Index::SegWriter(3pm)
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