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source: trunk/workshop-routing-foss4g/web/GeoExt/docs/lib/GeoExt/data/LayerStore.html @ 81

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70<li><a class="reference external" href="#example-use">Example Use</a></li>
71<li><a class="reference external" href="#config-options">Config Options</a></li>
72<li><a class="reference external" href="#public-properties">Public Properties</a></li>
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79                                  title="previous chapter"><tt class="docutils literal docutils literal docutils literal"><span class="pre">GeoExt.data.LayerRecord</span></tt></a></p>
80            <h4>Next topic</h4>
81            <p class="topless"><a href="PrintPage.html"
82                                  title="next chapter"><tt class="docutils literal"><span class="pre">GeoExt.data.PrintPage</span></tt></a></p>
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91           
92  <div class="section" id="geoext-data-layerstore">
93<h1><a title="GeoExt.data.LayerStore" class="reference internal" href="#GeoExt.data.LayerStore"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerStore</span></tt></a><a class="headerlink" href="#geoext-data-layerstore" 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.data.Store">Ext.data.Store</a></li>
98</ul>
99</dd>
100</dl>
101<dl class="class">
102<dt id="GeoExt.data.LayerStore">
103<em class="property">class </em><tt class="descclassname">GeoExt.data.</tt><tt class="descname">LayerStore</tt><a class="headerlink" href="#GeoExt.data.LayerStore" title="Permalink to this definition">¶</a></dt>
104<dd>A store that contains a cache of <a title="GeoExt.data.LayerRecord" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord</span></tt></a>
105objects.</dd></dl>
106
107<div class="section" id="example-use">
108<h2>Example Use<a class="headerlink" href="#example-use" title="Permalink to this headline">¶</a></h2>
109<p>Sample to create a new store containing a cache of
110<a title="GeoExt.data.LayerRecord" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord</span></tt></a> instances derived from map layers.</p>
111<div class="highlight-javascript"><div class="highlight"><pre><span class="kd">var</span> <span class="nx">store</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">GeoExt</span><span class="p">.</span><span class="nx">data</span><span class="p">.</span><span class="nx">LayerStore</span><span class="p">({</span>
112    <span class="nx">map</span><span class="o">:</span> <span class="nx">myMap</span><span class="p">,</span>
113    <span class="nx">layers</span><span class="o">:</span> <span class="nx">myLayers</span>
114<span class="p">});</span>
115</pre></div>
116</div>
117</div>
118<div class="section" id="config-options">
119<h2>Config Options<a class="headerlink" href="#config-options" title="Permalink to this headline">¶</a></h2>
120<p>Configuration properties in addition to
121those listed for <a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Store">Ext.data.Store</a>.</p>
122<dl class="describe">
123<dt>
124<tt class="descname">fields</tt></dt>
125<dd><tt class="docutils literal"><span class="pre">Array</span></tt>
126If provided a custom layer record type with additional fields will be
127used. Default fields for every layer record are <cite>layer</cite>
128(<tt class="docutils literal"><span class="pre">OpenLayers.Layer</span></tt>) <cite>title</cite> (<tt class="docutils literal"><span class="pre">String</span></tt>). The value of this option is
129either a field definition objects as passed to the
130<a title="GeoExt.data.LayerRecord.create" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord.create"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord.create()</span></tt></a> function or a
131<a title="GeoExt.data.LayerRecord" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord</span></tt></a> constructor created using
132<a title="GeoExt.data.LayerRecord.create" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord.create"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord.create()</span></tt></a>.</dd></dl>
133
134<dl class="describe">
135<dt>
136<tt class="descname">initDir</tt></dt>
137<dd><tt class="docutils literal"><span class="pre">Number</span></tt>
138Bitfields specifying the direction to use for the initial sync between
139the map and the store, if set to 0 then no initial sync is done.
140Defaults to <tt class="docutils literal"><span class="pre">GeoExt.data.LayerStore.MAP_TO_STORE|GeoExt.data.LayerStore.STORE_TO_MAP</span></tt></dd></dl>
141
142<dl class="describe">
143<dt>
144<tt class="descname">layers</tt></dt>
145<dd><tt class="docutils literal"><span class="pre">Array(OpenLayers.Layer)</span></tt>
146Layers that will be added to the store (and the map, depending on the
147value of the <tt class="docutils literal"><span class="pre">initDir</span></tt> option.</dd></dl>
148
149<dl class="describe">
150<dt>
151<tt class="descname">map</tt></dt>
152<dd><tt class="docutils literal"><span class="pre">OpenLayers.Map</span></tt>
153Map that this store will be in sync with. If not provided, the
154store will not be bound to a map.</dd></dl>
155
156<dl class="describe">
157<dt>
158<tt class="descname">reader</tt></dt>
159<dd><tt class="docutils literal"><span class="pre">Ext.data.DataReader</span></tt> The reader used to produce
160<a title="GeoExt.data.LayerRecord" class="reference external" href="LayerRecord.html#GeoExt.data.LayerRecord"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerRecord</span></tt></a> objects from <tt class="docutils literal"><span class="pre">OpenLayers.Layer</span></tt>
161objects.  If not provided, a <a title="GeoExt.data.LayerReader" class="reference external" href="LayerReader.html#GeoExt.data.LayerReader"><tt class="xref docutils literal"><span class="pre">GeoExt.data.LayerReader</span></tt></a> will be
162used.</dd></dl>
163
164</div>
165<div class="section" id="public-properties">
166<h2>Public Properties<a class="headerlink" href="#public-properties" title="Permalink to this headline">¶</a></h2>
167<p>Public properties in addition to those
168listed for <a class="reference external" href="http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Store">Ext.data.Store</a>.</p>
169<dl class="attribute">
170<dt id="GeoExt.data.LayerStore.map">
171<tt class="descclassname">LayerStore.</tt><tt class="descname">map</tt><a class="headerlink" href="#GeoExt.data.LayerStore.map" title="Permalink to this definition">¶</a></dt>
172<dd><tt class="docutils literal"><span class="pre">OpenLayers.Map</span></tt>
173Map that the store is synchronized with, if any.</dd></dl>
174
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