---
name: "Bio::Search::DatabaseI"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.8-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::Search::DatabaseI"
---

# Bio::Search::DatabaseI(3pm)

Interface for a database used in a sequence search

## NAME

Bio::Search::DatabaseI - Interface for a database used in a sequence search

## SYNOPSIS

Bio::Search::DatabaseI objects should not be instantiated since this module defines a pure interface.

Given an object that implements the Bio::Search::DatabaseI  interface, you can do the following things with it:

```
    $name = $db->name();
    $date = $db->date();
    $num_letters = $db->letters();
    $num_entries = $db->entries();
```

## DESCRIPTION

This module defines methods for an object that provides metadata information about a database used for sequence searching.

## FEEDBACK

### Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules.  Send your comments and suggestions preferably to one of the Bioperl mailing lists.  Your participation is much appreciated.

```
  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists
```

### Support

Please direct usage questions or support issues to the mailing list:

*bioperl-l@bioperl.org*

rather than to the module maintainer directly. Many experienced and  reponsive experts will be able look at the problem and quickly  address it. Please include a thorough description of the problem  with code and data examples if at all possible.

### Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track the bugs and their resolution. Bug reports can be submitted via the web:

```
  https://github.com/bioperl/bioperl-live/issues
```

## AUTHOR

Steve Chervitz \<sac@bioperl.org\>

See the FEEDBACK section  for where to send bug reports and comments.

## COPYRIGHT

Copyright (c) 2001 Steve Chervitz. All Rights Reserved.

## DISCLAIMER

This software is provided "as is" without warranty of any kind.

## APPENDIX

The rest of the documentation details each of the object methods.

### name

```
 Usage     : $name = $db->name();
 Purpose   : Get the name of the database searched.
 Returns   : String
 Argument  : n/a
```

### date

```
 Usage     : $date = $db->date();
 Purpose   : Get the creation date of the queried database.
 Returns   : String
 Argument  : n/a
```

### letters

```
 Usage     : $num_letters = $db->letters();
 Purpose   : Get the number of letters in the queried database.
 Returns   : Integer
 Argument  : n/a
```

### entries

```
 Usage     : $num_entries = $db->entries();
 Purpose   : Get the number of entries in the queried database.
 Returns   : Integer
 Argument  : n/a
```