KinoSearch::Index::Indexer - Build inverted indexes.
my $indexer = KinoSearch::Index::Indexer->new( schema => $schema, index => '/path/to/index', create => 1, ); while ( my ( $title, $content ) = each %source_docs ) { $indexer->add_doc({ title => $title, content => $content, }); } $indexer->commit;
The Indexer class is KinoSearch's primary tool for managing the content of inverted indexes, which may later be searched using IndexSearcher.
In general, only one Indexer at a time may write to an index safely. If a write lock cannot be secured, new() will throw an exception.
If an index is located on a shared volume, each writer application must identify itself by supplying an IndexManager with a unique host id to Indexer's constructor or index corruption will occur. See KinoSearch::Docs::FileLocking for a detailed discussion.
host
Note: at present, delete_by_term() and delete_by_query() only affect documents which had been previously committed to the index -- and not any documents added this indexing session but not yet committed. This may change in a future update.
my $indexer = KinoSearch::Index::Indexer->new( schema => $schema, # required at index creation index => '/path/to/index', # required create => 1, # default: 0 truncate => 1, # default: 0 manager => $manager # default: created internally );
schema - A Schema. Required when index is being created; if not supplied, will be extracted from the index folder.
index - Either a filepath to an index or a Folder.
create - If true and the index directory does not exist, attempt to create it.
truncate - If true, proceed with the intention of discarding all previous indexing data. The old data will remain intact and visible until commit() is called.
manager - An IndexManager.
$indexer->add_doc($doc); $indexer->add_doc( { field_name => $field_value } ); $indexer->add_doc( doc => { field_name => $field_value }, boost => 2.5, #: default 1.0 );
Add a document to the index. Accepts either a single argument or labeled params.
doc - Either a KinoSearch::Document::Doc object, or a hashref (which will be attached to a KinoSearch::Document::Doc object internally).
boost - A floating point weight which affects how this document scores.
Absorb an existing index into this one. The two indexes must have matching Schemas.
index - Either an index path name or a Folder.
Optimize the index for search-time performance. This may take a while, as it can involve rewriting large amounts of data.
Commit any changes made to the index. Until this is called, none of the changes made during an indexing session are permanent.
Calling commit() invalidates the Indexer, so if you want to make more changes you'll need a new one.
Perform the expensive setup for commit() in advance, so that commit() completes quickly. (If prepare_commit() is not called explicitly by the user, commit() will call it internally.)
Mark documents which contain the supplied term as deleted, so that they will be excluded from search results and eventually removed altogether. The change is not apparent to search apps until after commit() is called.
field - The name of an indexed field. (If it is not spec'd as indexed, an error will occur.)
indexed
term - The term which identifies docs to be marked as deleted. If field is associated with an Analyzer, term will be processed automatically (so don't pre-process it yourself).
field
term
Mark documents which match the supplied Query as deleted.
query - A Query.
KinoSearch::Index::Indexer isa KinoSearch::Object::Obj.
Copyright 2005-2010 Marvin Humphrey
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install KSx::Simple, copy and paste the appropriate command in to your terminal.
cpanm
cpanm KSx::Simple
CPAN shell
perl -MCPAN -e shell install KSx::Simple
For more information on module installation, please visit the detailed CPAN module installation guide.