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Revision 881

Added by berkley almost 19 years ago

updated documentation. removed a lot of typos and updated all of the new stuff for the new release

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metacatquery.html
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  <P>The Metacat Server provides 
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  an interface for searching of metadata stored in the Metacat database.
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  <P> <img alt="architecture diagram of a Metacat query" src="metadataquery.gif">
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  <br><br><b>Steps to performing a query in Metacat</b>
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  <br><br><b>Steps to perform a query in Metacat</b>
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  <ol>
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    <li>A pathquery document is created from the search criteria provide through
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    <li>A pathquery document is created from the search criteria provided through
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    the servlet parameters.</li>  
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    <li>This pathquery document is sent to DBQuery where it 
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    is processed and translated into SQL statements.</li>
......
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      &lt;/resultset&gt;
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  </pre>
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  <p>The first element in the resultset is &lt;query&gt;.  As you may notice,
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  its content is just the pathquery document.  The resultset always returns 
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  <p>The first element in the resultset is &lt;query&gt;.  Its content is just 
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  the pathquery document.  The resultset always returns 
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  the pathquery document that created it in the &lt;query&gt; tag.  The next
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  major tag is &lt;document&gt;.  Each XML document returned by the query
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  is represented by a &lt;document&gt; tag.  The default information returned
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  about a document are docid, docname, doctype, doctitle, createdate and  
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  is represented by a &lt;document&gt; tag.  The default document information returned
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  is docid, docname, doctype, doctitle, createdate and  
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  updatedate.  The param tags are present if the document found contained
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  the returnfield chosen in the pathquery document.  The name attribute of the
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  param tag is the full path to the node specified by the returnfield.  &lt;relation&gt;

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