SYNOPSIS
First, build an index of your documents.
my $index = Lucy::Simple->new(
path => '/path/to/index/'
language => 'en',
);
while ( my ( $title, $content ) = each %source_docs ) {
$index->add_doc({
title => $title,
content => $content,
});
}
Later, search the index.
my $total_hits = $index->search( query => $query_string, offset => 0, num_wanted => 10, ); print "Total hits: $total_hits\n"; while ( my $hit = $index->next ) { print "$hit->{title}\n", }
DESCRIPTION
Lucy::Simple is a stripped-down interface for the Apache Lucy search engine library.METHODS
new
my $lucy = Lucy::Simple->new( path => '/path/to/index/', language => 'en', );
Create a Lucy::Simple object, which can be used for both indexing and searching. Two hash-style parameters are required.
- path - Where the index directory should be located. If no index is found at the specified location, one will be created.
-
language - The language of the documents in your collection, indicated
by a two-letter ISO code. 12 languages are supported:
|-----------------------| | Language | ISO code | |-----------------------| | Danish | da | | Dutch | nl | | English | en | | Finnish | fi | | French | fr | | German | de | | Italian | it | | Norwegian | no | | Portuguese | pt | | Spanish | es | | Swedish | sv | | Russian | ru | |-----------------------|
add_doc
$lucy->add_doc({ location => $url, title => $title, content => $content, });
Add a document to the index. The document must be supplied as a hashref, with field names as keys and content as values.
search
my $total_hits = $lucy->search( query => $query_string, # required offset => 40, # default 0 num_wanted => 20, # default 10 );
Search the index. Returns the total number of documents which match the query. (This number is unlikely to match "num_wanted".)
- query - A search query string.
- offset - The number of most-relevant hits to discard, typically used when ``paging'' through hits N at a time. Setting offset to 20 and num_wanted to 10 retrieves hits 21-30, assuming that 30 hits can be found.
- num_wanted - The number of hits you would like to see after "offset" is taken into account.
BUGS
Not thread-safe.