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.\" ========================================================================
.\"
.IX Title "KinoSearch::InvIndexer 3"
.TH KinoSearch::InvIndexer 3 "2006-12-27" "perl v5.8.8" "User Contributed Perl Documentation"
.SH "NAME"
KinoSearch::InvIndexer \- build inverted indexes
.SH "WARNING"
.IX Header "WARNING"
KinoSearch is alpha test software.  The \s-1API\s0 and the file format are subject to
change.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    use KinoSearch::InvIndexer;
\&    use KinoSearch::Analysis::PolyAnalyzer;
.Ve
.PP
.Vb 2
\&    my $analyzer
\&        = KinoSearch::Analysis::PolyAnalyzer->new( language => 'en' );
.Ve
.PP
.Vb 5
\&    my $invindexer = KinoSearch::InvIndexer->new(
\&        invindex => '/path/to/invindex',
\&        create   => 1,
\&        analyzer => $analyzer,
\&    );
.Ve
.PP
.Vb 5
\&    $invindexer->spec_field( 
\&        name  => 'title' 
\&        boost => 3,
\&    );
\&    $invindexer->spec_field( name => 'bodytext' );
.Ve
.PP
.Vb 2
\&    while ( my ( $title, $bodytext ) = each %source_documents ) {
\&        my $doc = $invindexer->new_doc($title);
.Ve
.PP
.Vb 2
\&        $doc->set_value( title    => $title );
\&        $doc->set_value( bodytext => $bodytext );
.Ve
.PP
.Vb 2
\&        $invindexer->add_doc($doc);
\&    }
.Ve
.PP
.Vb 1
\&    $invindexer->finish;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The InvIndexer class is KinoSearch's primary tool for creating and
modifying inverted indexes, which may be searched using
KinoSearch::Searcher.
.SH "METHODS"
.IX Header "METHODS"
.Sh "new"
.IX Subsection "new"
.Vb 5
\&    my $invindexer = KinoSearch::InvIndexer->new(
\&        invindex => '/path/to/invindex',  # required
\&        create   => 1,                    # default: 0
\&        analyzer => $analyzer,            # default: no-op Analyzer
\&    );
.Ve
.PP
Create an InvIndexer object.  
.IP "\(bu" 4
\&\fBinvindex\fR \- can be either a filepath, or an InvIndex subclass such as
KinoSearch::Store::FSInvIndex or 
KinoSearch::Store::RAMInvIndex.
.IP "\(bu" 4
\&\fBcreate\fR \- create a new invindex, clobbering an existing one if necessary.
.IP "\(bu" 4
\&\fBanalyzer\fR \- an object which subclasses KinoSearch::Analysis::Analyzer,
such as a PolyAnalyzer.
.Sh "spec_field"
.IX Subsection "spec_field"
.Vb 10
\&    $invindexer->spec_field(
\&        name       => 'url',      # required
\&        boost      => 1,          # default: 1,
\&        analyzer   => undef,      # default: analyzer spec'd in new()
\&        indexed    => 0,          # default: 1
\&        analyzed   => 0,          # default: 1
\&        stored     => 1,          # default: 1
\&        compressed => 0,          # default: 0
\&        vectorized => 0,          # default: 1
\&    );
.Ve
.PP
Define a field. 
.IP "\(bu" 4
\&\fBname\fR \- the field's name.
.IP "\(bu" 4
\&\fBboost\fR \- A multiplier which determines how much a field contributes
to a document's score.  
.IP "\(bu" 4
\&\fBanalyzer\fR \- By default, all indexed fields are analyzed using the analyzer
that was supplied to \fInew()\fR.  Supplying an alternate for a given field
overrides the primary analyzer.
.IP "\(bu" 4
\&\fBindexed\fR \- index the field, so that it can be searched later.
.IP "\(bu" 4
\&\fBanalyzed\fR \- analyze the field, using the relevant Analyzer.  Fields such as
\&\*(L"category\*(R" or \*(L"product_number\*(R" might be indexed but not analyzed.
.IP "\(bu" 4
\&\fBstored\fR \- store the field, so that it can be retrieved when the document
turns up in a search.
.IP "\(bu" 4
\&\fBcompressed\fR \- compress the stored field, using the zlib compression algorithm.
.IP "\(bu" 4
\&\fBvectorized\fR \- store the field's \*(L"term vectors\*(R", which are required by
KinoSearch::Highlight::Highlighter for
excerpt selection and search term highlighting.
.Sh "new_doc"
.IX Subsection "new_doc"
.Vb 1
\&    my $doc = $invindexer->new_doc;
.Ve
.PP
Spawn an empty KinoSearch::Document::Doc object,
primed to accept values for the fields spec'd by spec_field.
.Sh "add_doc"
.IX Subsection "add_doc"
.Vb 1
\&    $invindexer->add_doc($doc);
.Ve
.PP
Add a document to the invindex.
.Sh "add_invindexes"
.IX Subsection "add_invindexes"
.Vb 6
\&    my $invindexer = KinoSearch::InvIndexer->new( 
\&        invindex => $invindex,
\&        analyzer => $analyzer,
\&    );
\&    $invindexer->add_invindexes( $another_invindex, $yet_another_invindex );
\&    $invindexer->finish;
.Ve
.PP
Absorb existing invindexes into this one.  May only be called once per
InvIndexer.  \fIadd_invindexes()\fR and \fIadd_doc()\fR cannot be called on the same
InvIndexer.
.Sh "delete_docs_by_term"
.IX Subsection "delete_docs_by_term"
.Vb 2
\&    my $term = KinoSearch::Index::Term->new( 'id', $unique_id );
\&    $invindexer->delete_docs_by_term($term);
.Ve
.PP
Mark any document which contains the supplied term as deleted, so that it will
be excluded from search results.  For more info, see
Deletions in
KinoSearch::Docs::FileFormat.
.Sh "finish"
.IX Subsection "finish"
.Vb 3
\&    $invindexer->finish( 
\&        optimize => 1, # default: 0
\&    );
.Ve
.PP
Finish the invindex.  Invalidates the InvIndexer.  Takes one hash-style
parameter.
.IP "\(bu" 4
\&\fBoptimize\fR \- If optimize is set to 1, the invindex will be collapsed to its
most compact form, which will yield the fastest queries.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2005\-2006 Marvin Humphrey
.SH "LICENSE, DISCLAIMER, BUGS, etc."
.IX Header "LICENSE, DISCLAIMER, BUGS, etc."
See KinoSearch version 0.15.
Creat By MiNi SheLL
Email: devilkiller@gmail.com