---
name: "TM::Index::Reified"
section: "3pm"
platform: "linux"
package: "libtm-perl"
version: "1.56-7"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/TM::Index::Reified"
---

# TM::Index::Reified(3pm)

Topic Maps, Indexing support (reification axis)

## NAME

TM::Index::Reified - Topic Maps, Indexing support (reification axis)

## SYNOPSIS

```
    # somehow get a map (any subclass of TM will do)
    my $tm = ...
    # one option: create an eager index (immediate population)
    use TM::Index::Reified;
    my $idx = new TM::Index::Reified ($tm, closed => 1);

    # for most operations which involve is_reified to be called
    # should be much faster
```

## DESCRIPTION

This index can be attached to a map if the method `"is_reified"` is about to be called very often. Most likely you will want to have the index to be closed, i.e. populated.

The package inherits most of its functionality from TM::Index.

**NOTE**: As for all indices, modifications of the underlying map are not reflected automatically.

## INTERFACE

### Constructor

The constructor/destructor is inherited from TM::Index.

### Methods

- **attach**, **detach**

  This index attaches in a special way to the map.

- **populate**

  Invoking this, you will fill this index with authoritative information.

## SEE ALSO

TM, TM::Index

## COPYRIGHT AND LICENSE

Copyright 2010 by Robert Barta, \<drrho@cpan.org\>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.