KinoSearch::Index::DelUsernContributed PeKinoSearch::Index::DeletionsWriter(3)NAMEKinoSearch::Index::DeletionsWriter - Abstract base class for marking
documents as deleted.
SYNOPSIS
my $polyreader = $del_writer->get_polyreader;
my $seg_readers = $polyreader->seg_readers;
for my $seg_reader (@$seg_readers) {
my $count = $del_writer->seg_del_count( $seg_reader->get_seg_name );
...
}
DESCRIPTION
Subclasses of DeletionsWriter provide a low-level mechanism for
declaring a document deleted from an index.
Because files in an index are never modified, and because it is not
practical to delete entire segments, a DeletionsWriter does not
actually remove documents from the index. Instead, it communicates to
a search-time companion DeletionsReader which documents are deleted in
such a way that it can create a Matcher iterator.
Documents are truly deleted only when the segments which contain them
are merged into new ones.
ABSTRACT METHODS
delete_by_term( [labeled params] )
Delete all documents in the index that index the supplied term.
· field - The name of an indexed field. (If it is not spec'd as
"indexed", an error will occur.)
· 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).
delete_by_query(query)
Delete all documents in the index that match "query".
· query - A Query.
updated()
Returns true if there are updates that need to be written.
seg_del_count(seg_name)
Return the number of deletions for a given segment.
· seg_name - The name of the segment.
INHERITANCEKinoSearch::Index::DeletionsWriter isa KinoSearch::Index::DataWriter
isa KinoSearch::Object::Obj.
COPYRIGHT AND LICENSE
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.
perl v5.14.12011-06KinoSearch::Index::DeletionsWriter(3)
