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<?xml version="1.0" encoding="iso-8859-1"?>
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<a href="Pyblio-module.html">Package Pyblio</a> ::
Module Query
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<!-- =========== START OF MODULE DESCRIPTION =========== -->
<h2 class="module">Module Pyblio.Query</h2>
<p>Definition of the query language.</p>
A query is composed of elementary search operations, which are
combined by boolean operations:
<pre class="doctestblock">
<span class="py-src"><span class="py-prompt">>>> </span>query = (AnyWord(u<span class="py-string">'findme'</span>) | Txo(<span class="py-string">'type'</span>, item)) & ~ HasField(<span class="py-string">'title'</span>)</span></pre>
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<b><a href="Pyblio.Query.AnyWord-class.html"><code>AnyWord</code></a></b></td>
<td>Full text searching of a single word</td></tr>
<tr><td width="15%">
<b><a href="Pyblio.Query.HasField-class.html"><code>HasField</code></a></b></td>
<td>Matches when the record has the specified field.</td></tr>
<tr><td width="15%">
<b><a href="Pyblio.Query.Null-class.html"><code>Null</code></a></b></td>
<td>Does not search anything, but is useful when programatically
constructing a query:</td></tr>
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<b><a href="Pyblio.Query.Queryable-class.html"><code>Queryable</code></a></b></td>
<td>A mixin that provides an (one day optimized) query engine to a
store</td></tr>
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<b><a href="Pyblio.Query.Txo-class.html"><code>Txo</code></a></b></td>
<td>Search items that belong to the corresponding txo</td></tr>
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<b><a href="../private/Pyblio.Query._ANDed-class.html"><code>_ANDed</code></a></b></td>
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<b><a href="../private/Pyblio.Query._Constraint-class.html"><code>_Constraint</code></a></b></td>
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<b><a href="../private/Pyblio.Query._NOTed-class.html"><code>_NOTed</code></a></b></td>
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