1Object::Signature::FileU(s3e)r Contributed Perl DocumentaOtbijoenct::Signature::File(3)
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NAME

6       Object::Signature::File - Extended signature API for storing objects in
7       file
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DESCRIPTION

10       Whereas the basic Object::Signature class provides for only a raw
11       cryptographic signature, Object::Signature::File extends the signature
12       method to add specialised information for objects that want some
13       control over how they are stored as files.
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15       For example, some objects may want the cached object to have a matching
16       file extension (for example a gif image) so that web-accessible cache
17       path could be used in a web page.
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19       The image would then be sent out to the browser with the correct mime
20       type.
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METHODS

23   signature_ext
24       The "signature_ext" method indicates the preferable file extension for
25       the content of the object, if applicable.
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27       If the method returns a string, it indicates the object should be
28       stored in a file with a specific extension.
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30       If the method returns a null string, it indicates that the file should
31       be stored with no extension.
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33       If the method return "undef" (the default value), it indicates no
34       preference for the extension of the file.
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36   signature_name
37       This signature_name method is the least-useful part of this extended
38       API, and is rarely used. It is included mostly for completeness.
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40       If the method returns a string, it indicates the name part of a file
41       name that the object should be stored in, if possible.
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43       If the method return a null string, it explicitly indicates there is no
44       file name or a file name is not possible.
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46       If the method returns "undef" (the default value), it indicates no
47       preference for the name of the file.
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AUTHOR

50       Adam Kennedy <adamk@cpan.org>
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53       Copyright 2004 - 2007 Adam Kennedy.
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55       This program is free software; you can redistribute it and/or modify it
56       under the same terms as Perl itself.
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58       The full text of the license can be found in the LICENSE file included
59       with this module.
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63perl v5.30.0                      2019-07-26        Object::Signature::File(3)
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