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<a href="mapnik-module.html">Package&nbsp;mapnik</a> ::
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<a href="mapnik.ogcserver.common-module.html">Module&nbsp;common</a> ::
Class&nbsp;ParameterDefinition
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<h1 class="epydoc">Class ParameterDefinition</h1><p class="nomargin-top"></p>
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<td><span class="summary-sig"><a href="mapnik.ogcserver.common.ParameterDefinition-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">mandatory</span>,
<span class="summary-sig-arg">cast</span>,
<span class="summary-sig-arg">default</span>=<span class="summary-sig-default">None</span>,
<span class="summary-sig-arg">allowedvalues</span>=<span class="summary-sig-default">None</span>,
<span class="summary-sig-arg">fallback</span>=<span class="summary-sig-default">False</span>)</span><br />
An OGC request parameter definition.</td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
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<br /><em class="fname">(Constructor)</em>
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<p>An OGC request parameter definition. Used to describe a parameter's
characteristics.</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>mandatory</code></strong> (Boolean.) - Is this parameter required by the request?</li>
<li><strong class="pname"><code>default</code></strong> (None or any valid value.) - Default value to use if one is not provided and the parameter is
optional.</li>
<li><strong class="pname"><code>allowedvalues</code></strong> (A python tuple of values.) - A list of allowed values for the parameter. If a value is
provided that is not in this list, an error is raised.</li>
<li><strong class="pname"><code>fallback</code></strong> (Boolean.) - Whether the value of the parameter should fall back to the
default should an illegal value be provided.</li>
</ul></dd>
<dt>Returns:</dt>
<dd>A <a
href="mapnik.ogcserver.common.ParameterDefinition-class.html"
class="link">ParameterDefinition</a> instance.</dd>
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