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source: trunk/workshop-routing-foss4g/web/GeoExt/docs/lib/GeoExt/widgets/tree/LayerParamLoader.html @ 76

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69<li><a class="reference external" href="#"><tt class="docutils literal"><span class="pre">GeoExt.tree.LayerParamLoader</span></tt></a><ul>
70<li><a class="reference external" href="#config-options">Config Options</a></li>
71<li><a class="reference external" href="#public-methods">Public Methods</a></li>
72<li><a class="reference external" href="#events">Events</a></li>
73</ul>
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78            <p class="topless"><a href="LayerNode.html"
79                                  title="previous chapter"><tt class="docutils literal docutils literal docutils literal"><span class="pre">GeoExt.tree.LayerNode</span></tt></a></p>
80            <h4>Next topic</h4>
81            <p class="topless"><a href="LayerParamNode.html"
82                                  title="next chapter"><tt class="docutils literal"><span class="pre">GeoExt.tree.LayerParamNode</span></tt></a></p>
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91           
92  <div class="section" id="geoext-tree-layerparamloader">
93<h1><a title="GeoExt.tree.LayerParamLoader" class="reference internal" href="#GeoExt.tree.LayerParamLoader"><tt class="xref docutils literal"><span class="pre">GeoExt.tree.LayerParamLoader</span></tt></a><a class="headerlink" href="#geoext-tree-layerparamloader" title="Permalink to this headline">¶</a></h1>
94<dl class="meta docutils">
95<dt>Extends</dt>
96<dd><ul class="first last simple">
97<li><a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.util.Observable">Ext.util.Observable</a></li>
98</ul>
99</dd>
100</dl>
101<dl class="class">
102<dt id="GeoExt.tree.LayerParamLoader">
103<em class="property">class </em><tt class="descclassname">GeoExt.tree.</tt><tt class="descname">LayerParamLoader</tt><a class="headerlink" href="#GeoExt.tree.LayerParamLoader" title="Permalink to this definition">¶</a></dt>
104<dd>A loader that creates children from its node&#8217;s layer
105(<tt class="docutils literal"><span class="pre">OpenLayers.Layer.HTTPRequest</span></tt>) by items in one of the values in
106the layer&#8217;s params object.</dd></dl>
107
108<div class="section" id="config-options">
109<h2>Config Options<a class="headerlink" href="#config-options" title="Permalink to this headline">¶</a></h2>
110<p>Configuration properties in addition to
111those listed for <a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.util.Observable">Ext.util.Observable</a>.</p>
112<dl class="describe">
113<dt>
114<tt class="descname">delimiter</tt></dt>
115<dd><tt class="docutils literal"><span class="pre">String</span></tt> Delimiter of the <tt class="docutils literal"><span class="pre">param</span></tt>&#8216;s value&#8217;s items. Default is
116<tt class="docutils literal"><span class="pre">,</span></tt> (comma). If the <tt class="docutils literal"><span class="pre">param</span></tt>&#8216;s value is an array, this property has
117no effect.</dd></dl>
118
119<dl class="describe">
120<dt>
121<tt class="descname">param</tt></dt>
122<dd><tt class="docutils literal"><span class="pre">String</span></tt> Key for a param (key-value pair in the params object of the
123layer) that this loader uses to create childnodes from its items. The
124value can either be an <tt class="docutils literal"><span class="pre">Array</span></tt> or a <tt class="docutils literal"><span class="pre">String</span></tt>, delimited by the
125character (or string) provided as <tt class="docutils literal"><span class="pre">delimiter</span></tt> config option.</dd></dl>
126
127</div>
128<div class="section" id="public-methods">
129<h2>Public Methods<a class="headerlink" href="#public-methods" title="Permalink to this headline">¶</a></h2>
130<p>Public methods in addition to those
131listed for <a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.util.Observable">Ext.util.Observable</a>.</p>
132<dl class="method">
133<dt id="GeoExt.tree.LayerParamLoader.createNode">
134<tt class="descclassname">LayerParamLoader.</tt><tt class="descname">createNode</tt><big>(</big><big>)</big><a class="headerlink" href="#GeoExt.tree.LayerParamLoader.createNode" title="Permalink to this definition">¶</a></dt>
135<dd><table class="docutils field-list" frame="void" rules="none">
136<col class="field-name" />
137<col class="field-body" />
138<tbody valign="top">
139<tr class="field"><th class="field-name">Parameter:</th><td class="field-body"><em>attr</em> &#8211; <tt class="docutils literal"><span class="pre">Object</span></tt> attributes for the new node</td>
140</tr>
141</tbody>
142</table>
143<p>Override this function for custom TreeNode node implementation, or to
144modify the attributes at creation time.</p>
145</dd></dl>
146
147</div>
148<div class="section" id="events">
149<h2>Events<a class="headerlink" href="#events" title="Permalink to this headline">¶</a></h2>
150<p>Events in addition to those
151listed for <a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.util.Observable">Ext.util.Observable</a>.</p>
152<dl class="describe">
153<dt>
154<tt class="descname">beforeload</tt></dt>
155<dd><p>Triggered before loading children. Return false to avoid
156loading children.</p>
157<p>Listener arguments:</p>
158<ul>
159<li><p class="first">loader - <a title="GeoExt.tree.LayerLoader" class="reference external" href="LayerLoader.html#GeoExt.tree.LayerLoader"><tt class="xref docutils literal"><span class="pre">GeoExt.tree.LayerLoader</span></tt></a> this loader</p>
160</li>
161<li><dl class="first docutils">
162<dt>node - <tt class="docutils literal"><span class="pre">Ex.tree.TreeNode</span></tt> the node that this loader is</dt>
163<dd><p class="first last">configured with</p>
164</dd>
165</dl>
166</li>
167</ul>
168</dd></dl>
169
170<dl class="describe">
171<dt>
172<tt class="descname">load</tt></dt>
173<dd><p>Triggered after children were loaded.</p>
174<p>Listener arguments:</p>
175<ul>
176<li><p class="first">loader - <a title="GeoExt.tree.LayerLoader" class="reference external" href="LayerLoader.html#GeoExt.tree.LayerLoader"><tt class="xref docutils literal"><span class="pre">GeoExt.tree.LayerLoader</span></tt></a> this loader</p>
177</li>
178<li><dl class="first docutils">
179<dt>node - <tt class="docutils literal"><span class="pre">Ex.tree.TreeNode</span></tt> the node that this loader is</dt>
180<dd><p class="first last">configured with</p>
181</dd>
182</dl>
183</li>
184</ul>
185</dd></dl>
186
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