1Lucy::Search::RangeQuerUys(e3r)Contributed Perl DocumentLautciyo:n:Search::RangeQuery(3)
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NAME

6       Lucy::Search::RangeQuery - Match a range of values.
7

SYNOPSIS

9           # Match all articles by "Foo" published since the year 2000.
10           my $range_query = Lucy::Search::RangeQuery->new(
11               field         => 'publication_date',
12               lower_term    => '2000-01-01',
13               include_lower => 1,
14           );
15           my $author_query = Lucy::Search::TermQuery->new(
16               field => 'author_last_name',
17               text  => 'Foo',
18           );
19           my $and_query = Lucy::Search::ANDQuery->new(
20               children => [ $range_query, $author_query ],
21           );
22           my $hits = $searcher->hits( query => $and_query );
23           ...
24

DESCRIPTION

26       RangeQuery matches documents where the value for a particular field
27       falls within a given range.
28

CONSTRUCTORS

30   new
31           my $range_query = Lucy::Search::RangeQuery->new(
32               field         => 'product_number', # required
33               lower_term    => '003',            # see below
34               upper_term    => '060',            # see below
35               include_lower => 0,                # default true
36               include_upper => 0,                # default true
37           );
38
39       Create a new RangeQuery.
40
41       Takes 5 parameters; "field" is required, as is at least one of either
42       "lower_term" or "upper_term".
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44       ·   field - The name of a "sortable" field.
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46       ·   lower_term - Lower delimiter.  If not supplied, all values less
47           than "upper_term" will pass.
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49       ·   upper_term - Upper delimiter.  If not supplied, all values greater
50           than "lower_term" will pass.
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52       ·   include_lower - Indicates whether docs which match "lower_term"
53           should be included in the results.
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55       ·   include_upper - Indicates whether docs which match "upper_term"
56           should be included in the results.
57

METHODS

59   make_compiler
60           my $compiler = $range_query->make_compiler(
61               searcher    => $searcher,     # required
62               boost       => $boost,        # required
63               subordinate => $subordinate,  # default: false
64           );
65
66       Abstract factory method returning a Compiler derived from this Query.
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68       ·   searcher - A Searcher.
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70       ·   boost - A scoring multiplier.
71
72       ·   subordinate - Indicates whether the Query is a subquery (as opposed
73           to a top-level query).  If false, the implementation must invoke
74           normalize() on the newly minted Compiler object before returning
75           it.
76

INHERITANCE

78       Lucy::Search::RangeQuery isa Lucy::Search::Query isa Clownfish::Obj.
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82perl v5.30.1                      2020-01-30       Lucy::Search::RangeQuery(3)
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