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<!--
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* metacat-architecture.html
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*
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* Authors: Michael Daigle
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* Copyright: 2008 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* For Details: http://www.nceas.ucsb.edu/
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* Created: 2008 November 4
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* Version:
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* File Info: '$ '
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*
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*
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-->
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<html>
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<head>
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<title>Metacat Architecture</title>
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<!-- unfortunately, we have to look for the common css file in the
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user docs directory. This is because the user docs deploy to
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the top level of the metacat docs on the knb web server -->
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<link rel="stylesheet" type="text/css" href="../user/common.css">
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<link rel="stylesheet" type="text/css" href="./default.css">
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</head>
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<body>
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<table class="tabledefault" width="100%">
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<tr>
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<td rowspan="2"><img src="./images/KNBLogo.gif"></td>
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<td colspan="7"><div class="title">KNB Software Development Guide: Metacat Architecture</div></td>
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</tr>
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<tr>
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<td><a href="/" class="toollink"> KNB Home </a></td>
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<td><a href="/data.html" class="toollink"> Data </a></td>
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<td><a href="/people.html" class="toollink"> People </a></td>
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<td><a href="/informatics" class="toollink"> Informatics </a></td>
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<td><a href="/biodiversity" class="toollink"> Biocomplexity </a></td>
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<td><a href="/education" class="toollink"> Education </a></td>
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<td><a href="/software" class="toollink"> Software </a></td>
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</tr>
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</table>
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<br>
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<table width="100%">
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<tr>
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<td class="tablehead" colspan="2"><p class="label">Metacat Architecture</p></td>
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<td class="tablehead" colspan="2" align="right">
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<!-- a href="add back file here when one exists" -->Back<!-- /a --> | <a href="./index.html">Home</a> |
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<a href="./metacat-dev-hardware.html">Next</a>
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</td>
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</tr>
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</table>
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<div class="header1">Table of Contents</div>
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<div class="toc">
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<div class="toc1"><a href="#Overview">Architecture Overview</a></div>
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<div class="toc1"><a href="#Sections">Architectural Sections</a></div>
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</div>
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<a name="Overview"></a><div class="header1">Architecture Overview</div>
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<p>Metacat is implemented as a Java Servlet, and so communicates using basic
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HTTP protocol semantics. The figure below shows the basic structure of
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the Metacat architecture. A well defined interface for inserting,
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updating, deleting, querying, and transforming (using XSL) XML documents
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is presented. We would like to add the DOM API as an alternative
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supported mechanism for interacting with Metacat, but have not yet
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implemented this functionality. </p>
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<p><img src="../user/metacat.gif" /></p>
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<a name="Sections"></a><div class="header1">Architectural Sections</div>
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<p> Please refer to the following sections for more information on each area.
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<ul>
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<li> <a href="./query-caching.html">Query Caching and Indexing Mechanisms</a></li>
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<li> <a href="./service-base.html">Service Based Architecture</a></li>
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<li> <a href="./utilities-classes.html">Utilities Classes</a></li>
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<li> <!-- a href="./managing-properties.html" -->Managing Properties<!-- /a --></li>
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<li> <!-- a href="./configuration-infrastructure.html" -->Configuration Infrastructure<!-- /a --></li>
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</ul>
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<br>
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<!-- a href="add back file here when one exists" -->Back<!-- /a --> | <a href="./index.html">Home</a> |
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<a href="./metacat-dev-hardware.html">Next</a>
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</ul>
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</body>
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</html>
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