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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 8. The ODR Module</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="YAZ User's Guide and Reference"><link rel="up" href="index.html" title="YAZ User's Guide and Reference"><link rel="prev" href="tools.retrieval.html" title="6. Retrieval Facility"><link rel="next" href="odr.use.html" title="2. Using ODR"></head><body><link rel="stylesheet" type="text/css" href="common/style1.css"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 8. The ODR Module</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="tools.retrieval.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="odr.use.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="odr"></a>Chapter 8. The ODR Module</h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="sect1"><a href="odr.html#odr.introduction">1. Introduction</a></span></dt><dt><span class="sect1"><a href="odr.use.html">2. Using ODR</a></span></dt><dd><dl><dt><span class="sect2"><a href="odr.use.html#odr.streams">2.1. ODR Streams</a></span></dt><dt><span class="sect2"><a href="odr.use.html#odr.memory.management">2.2. Memory Management</a></span></dt><dt><span class="sect2"><a href="odr.use.html#odr.encoding.and.decoding">2.3. Encoding and Decoding Data</a></span></dt><dt><span class="sect2"><a href="odr.use.html#odr.printing">2.4. Printing</a></span></dt><dt><span class="sect2"><a href="odr.use.html#odr.diagnostics">2.5. Diagnostics</a></span></dt><dt><span class="sect2"><a href="odr.use.html#odr.summary.and.synopsis">2.6. Summary and Synopsis</a></span></dt></dl></dd><dt><span class="sect1"><a href="odr.programming.html">3. Programming with ODR</a></span></dt><dd><dl><dt><span class="sect2"><a href="odr.programming.html#odr.primitive.asn1.types">3.1. The Primitive ASN.1 Types</a></span></dt><dd><dl><dt><span class="sect3"><a href="odr.programming.html#odr.integer">3.1.1. INTEGER</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.boolean">3.1.2. BOOLEAN</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.real">3.1.3. REAL</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.null">3.1.4. NULL</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.octet.string">3.1.5. OCTET STRING</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.bit.string">3.1.6. BIT STRING</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.object.identifier">3.1.7. OBJECT IDENTIFIER</a></span></dt></dl></dd><dt><span class="sect2"><a href="odr.programming.html#odr.tagging.primitive.types">3.2. Tagging Primitive Types</a></span></dt><dt><span class="sect2"><a href="odr.programming.html#odr.constructed.types">3.3. Constructed Types</a></span></dt><dt><span class="sect2"><a href="odr.programming.html#odr.tagging.constructed.types">3.4. Tagging Constructed Types</a></span></dt><dd><dl><dt><span class="sect3"><a href="odr.programming.html#odr.implicit.tagging">3.4.1. Implicit Tagging</a></span></dt><dt><span class="sect3"><a href="odr.programming.html#odr.explicit.tagging">3.4.2. Explicit Tagging</a></span></dt></dl></dd><dt><span class="sect2"><a href="odr.programming.html#odr.sequence.of">3.5. SEQUENCE OF</a></span></dt><dt><span class="sect2"><a href="odr.programming.html#odr.choice.types">3.6. CHOICE Types</a></span></dt></dl></dd><dt><span class="sect1"><a href="odr.debugging.html">4. Debugging</a></span></dt></dl></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="odr.introduction"></a>1. Introduction</h2></div></div></div><p>
<acronym class="acronym">ODR</acronym> is the BER-encoding/decoding subsystem of YAZ. Care as been taken
to isolate <acronym class="acronym">ODR</acronym> from the rest of the package - specifically from the
transport interface. <acronym class="acronym">ODR</acronym> may be used in any context where basic
ASN.1/BER representations are used.
</p><p>
If you are only interested in writing a Z39.50 implementation based on
the PDUs that are already provided with YAZ, you only need to concern
yourself with the section on managing ODR streams
(<a class="xref" href="odr.use.html" title="2. Using ODR">Section 2, “Using ODR”</a>). Only if you need to
implement ASN.1 beyond that which has been provided, should you
worry about the second half of the documentation
(<a class="xref" href="odr.programming.html" title="3. Programming with ODR">Section 3, “Programming with ODR”</a>).
If you use one of the higher-level interfaces, you can skip this
section entirely.
</p><p>
This is important, so we'll repeat it for emphasis: <span class="emphasis"><em>You do
not need to read <a class="xref" href="odr.programming.html" title="3. Programming with ODR">Section 3, “Programming with ODR”</a>
to implement Z39.50 with YAZ.</em></span>
</p><p>
If you need a part of the protocol that isn't already in YAZ, you
should contact the authors before going to work on it yourself: We
might already be working on it. Conversely, if you implement a useful
part of the protocol before us, we'd be happy to include it in a
future release.
</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="tools.retrieval.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="odr.use.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">6. Retrieval Facility </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 2. Using ODR</td></tr></table></div></body></html>
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