man-pages/man3/Dpkg::Interface::Storable.3perl.html
2021-03-31 01:06:50 +01:00

123 lines
3.1 KiB
HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML><HEAD><TITLE>Man page of Dpkg::Interface::Storable</TITLE>
</HEAD><BODY>
<H1>Dpkg::Interface::Storable</H1>
Section: libdpkg-perl (3perl)<BR>Updated: 2020-03-23<BR><A HREF="#index">Index</A>
<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
Dpkg::Interface::Storable - common methods related to object serialization
<A NAME="lbAC">&nbsp;</A>
<H2>DESCRIPTION</H2>
Dpkg::Interface::Storable is only meant to be used as parent
class for other objects. It provides common methods that are
all implemented on top of two basic methods <B>parse()</B> and <B>output()</B>.
<A NAME="lbAD">&nbsp;</A>
<H2>BASE METHODS</H2>
Those methods must be provided by the object that wish to inherit
from Dpkg::Interface::Storable so that the methods provided can work.
<DL COMPACT>
<DT id="1">$obj-&gt;parse($fh[, $desc])<DD>
This methods initialize the object with the data stored in the
filehandle. <TT>$desc</TT> is optional and is a textual description of
the filehandle used in error messages.
<DT id="2">$string = $obj-&gt;output([$fh])<DD>
This method returns a string representation of the object in <TT>$string</TT>
and it writes the same string to <TT>$fh</TT> (if it's defined).
</DL>
<A NAME="lbAE">&nbsp;</A>
<H2>PROVIDED METHODS</H2>
<DL COMPACT>
<DT id="3">$obj-&gt;load($filename, %opts)<DD>
Initialize the object with the data stored in the file. The file can be
compressed, it will be decompressed on the fly by using a
Dpkg::Compression::FileHandle object. If <TT>$opts</TT>{compression} is false the
decompression support will be disabled. If <TT>$filename</TT> is ``-'', then the
standard input is read (no compression is allowed in that case).
<DT id="4">$obj-&gt;save($filename, %opts)<DD>
Store the object in the file. If the filename ends with a known
compression extension, it will be compressed on the fly by using a
Dpkg::Compression::FileHandle object. If <TT>$opts</TT>{compression} is false the
compression support will be disabled. If <TT>$filename</TT> is ``-'', then the
standard output is used (data are written uncompressed in that case).
<DT id="5">&quot;$obj&quot;<DD>
Return a string representation of the object.
</DL>
<A NAME="lbAF">&nbsp;</A>
<H2>CHANGES</H2>
<A NAME="lbAG">&nbsp;</A>
<H3>Version 1.01 (dpkg 1.19.0)</H3>
New options: The <TT>$obj</TT>-&gt;<B>load()</B> and <TT>$obj</TT>-&gt;<B>save()</B> methods support a new
compression option.
<A NAME="lbAH">&nbsp;</A>
<H3>Version 1.00 (dpkg 1.15.6)</H3>
Mark the module as public.
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT id="6"><A HREF="#lbAB">NAME</A><DD>
<DT id="7"><A HREF="#lbAC">DESCRIPTION</A><DD>
<DT id="8"><A HREF="#lbAD">BASE METHODS</A><DD>
<DT id="9"><A HREF="#lbAE">PROVIDED METHODS</A><DD>
<DT id="10"><A HREF="#lbAF">CHANGES</A><DD>
<DL>
<DT id="11"><A HREF="#lbAG">Version 1.01 (dpkg 1.19.0)</A><DD>
<DT id="12"><A HREF="#lbAH">Version 1.00 (dpkg 1.15.6)</A><DD>
</DL>
</DL>
<HR>
This document was created by
<A HREF="/cgi-bin/man/man2html">man2html</A>,
using the manual pages.<BR>
Time: 00:05:39 GMT, March 31, 2021
</BODY>
</HTML>