webgui/www/extras/yui/docs/YAHOO.widget.DS_ScriptNode.html
2008-03-25 16:13:25 +00:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<title>API: autocomplete YAHOO.widget.DS_ScriptNode (YUI Library)</title>
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<body id="yahoo-com">
<div id="doc3" class="yui-t2">
<div id="hd">
<a href="http://developer.yahoo.com/yui/"><h1>Yahoo! UI Library</h1></a>
<h3>AutoComplete Widget&nbsp; <span class="subtitle">2.5.1</span></h3>
<p>
<a href="./index.html">Yahoo! UI Library</a>
&gt; <a href="./module_autocomplete.html">autocomplete</a>
&gt; YAHOO.widget.DS_ScriptNode
</p>
</div>
<div id="bd">
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<h2>
Class <b>YAHOO.widget.DS_ScriptNode</b>
<span class="extends">
- extends <a href="YAHOO.widget.DataSource.html">YAHOO.widget.DataSource</a>
</span>
<span class="extends">
</span>
</code>
</h2>
<!-- class tree goes here -->
<div class="summary description">
Implementation of YAHOO.widget.DataSource using the Get Utility to generate
dynamic SCRIPT nodes for data retrieval.
</div>
<div class="section constructor details">
<h3 id="constructor">Constructor</h3>
<div class="content">
<div class="detail">
<strong>YAHOO.widget.DS_ScriptNode</strong>
<code>
(
sUri
,
aSchema
,
oConfigs
)
</code>
<div class="description">
<dl>
<dt>Parameters:</dt>
<dd>
<code>sUri
&lt;String&gt;
</code>
URI to the script location that will return data.
</dd>
<dd>
<code>aSchema
&lt;String[]&gt;
</code>
Data schema definition of results.
</dd>
<dd>
<code>oConfigs
&lt;Object&gt;
</code>
(optional) Object literal of config params.
</dd>
</dl>
</div>
</div>
</div>
</div>
<div class="section field details">
<h3 id="properties">Properties</h3>
<div class="content">
<div class="private">
<h4><a name="property__nId">_nId</a>
<code>- private static Number</code>
</h4>
<div class="detail">
<div class="description">
Unique ID to track requests.
</div>
</div>
<hr />
</div>
<div class="private">
<h4><a name="property__nPending">_nPending</a>
<code>- private static Number</code>
</h4>
<div class="detail">
<div class="description">
Counter for pending requests. When this is 0, it is safe to purge callbacks
array.
</div>
</div>
<hr />
</div>
<div class="">
<h4><a name="property_asyncMode">asyncMode</a>
<code>- String</code>
</h4>
<div class="detail">
<div class="description">
Defines request/response management in the following manner:
<dl>
<!--<dt>queueRequests</dt>
<dd>If a request is already in progress, wait until response is returned before sending the next request.</dd>
<dt>cancelStaleRequests</dt>
<dd>If a request is already in progress, cancel it before sending the next request.</dd>-->
<dt>ignoreStaleResponses</dt>
<dd>Send all requests, but handle only the response for the most recently sent request.</dd>
<dt>allowAll</dt>
<dd>Send all requests and handle all responses.</dd>
</dl>
</div>
</div>
<div class="default">
Default Value: "allowAll"
</div>
<hr />
</div>
<div class="">
<h4><a name="property_callbacks">callbacks</a>
<code>- static Function[]</code>
</h4>
<div class="detail">
<div class="description">
Global array of callback functions, one for each request sent.
</div>
</div>
<hr />
</div>
<div class="">
<h4><a name="property_getUtility">getUtility</a>
<code>- Object</code>
</h4>
<div class="detail">
<div class="description">
Alias to YUI Get Utility. Allows implementers to specify their own
subclasses of the YUI Get Utility.
</div>
</div>
<div class="default">
Default Value: YAHOO.util.Get
</div>
<hr />
</div>
<div class="">
<h4><a name="property_scriptCallbackParam">scriptCallbackParam</a>
<code>- String</code>
</h4>
<div class="detail">
<div class="description">
Callback string parameter name sent to scriptURI. For instance, requests will be
sent to &#60;scriptURI&#62;?&#60;scriptCallbackParam&#62;=callbackFunction
</div>
</div>
<div class="default">
Default Value: "callback"
</div>
<hr />
</div>
<div class="">
<h4><a name="property_scriptQueryParam">scriptQueryParam</a>
<code>- String</code>
</h4>
<div class="detail">
<div class="description">
Query string parameter name sent to scriptURI. For instance, requests will be
sent to &#60;scriptURI&#62;?&#60;scriptQueryParam&#62;=queryString
</div>
</div>
<div class="default">
Default Value: "query"
</div>
<hr />
</div>
<div class="">
<h4><a name="property_scriptURI">scriptURI</a>
<code>- String</code>
</h4>
<div class="detail">
<div class="description">
URI to the script that returns data.
</div>
</div>
<hr />
</div>
</div>
</div>
<div class="section field inheritance">
<h4>Properties inherited from <a href="YAHOO.widget.DataSource.html">YAHOO.widget.DataSource</a>:</h4>
<div class="content">
<code>
<a class="private" href="YAHOO.widget.DataSource.html#property__aCache">_aCache</a><span class="private">,</span>
<a class="private" href="YAHOO.widget.DataSource.html#property__sName">_sName</a><span class="private">,</span>
<a class="" href="YAHOO.widget.DataSource.html#property_maxCacheEntries">maxCacheEntries</a><span class="">,</span>
<a class="" href="YAHOO.widget.DataSource.html#property_queryMatchCase">queryMatchCase</a><span class="">,</span>
<a class="" href="YAHOO.widget.DataSource.html#property_queryMatchContains">queryMatchContains</a><span class="">,</span>
<a class="" href="YAHOO.widget.DataSource.html#property_queryMatchSubset">queryMatchSubset</a>
</code>
</div>
</div>
<div class="section method details">
<h3 id="methods">Methods</h3>
<div class="content">
<div class="private">
<h4>
<a name="method__bumpPendingDown">_bumpPendingDown</a></h4>
<div class="detail">
<code>
private
void
<strong>_bumpPendingDown</strong>
(
)
</code>
<div class="description">
Any success/failure response should decrement counter.
</div>
<div class="description">
<dl>
<dt>Returns:
<code>
void
</code></dt>
<dd></dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="">
<h4>
<a name="method_doQuery">doQuery</a></h4>
<div class="detail">
<code>
void
<strong>doQuery</strong>
(
oCallbackFn
,
sQuery
,
oParent
)
</code>
<div class="description">
Queries the live data source. Results are passed back to a callback function.
</div>
<div class="description">
<dl>
<dt>Parameters:</dt>
<dd>
<code>oCallbackFn &lt;HTMLFunction&gt;</code>
Callback function defined by oParent object to which to return results.
</dd>
<dd>
<code>sQuery &lt;String&gt;</code>
Query string.
</dd>
<dd>
<code>oParent &lt;Object&gt;</code>
The object instance that has requested data.
</dd>
</dl>
<dl>
<dt>Returns:
<code>
void
</code></dt>
<dd></dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="">
<h4>
<a name="method_handleResponse">handleResponse</a></h4>
<div class="detail">
<code>
void
<strong>handleResponse</strong>
(
oResponse
,
oCallbackFn
,
sQuery
,
oParent
)
</code>
<div class="description">
Parses JSON response data into an array of result objects and passes it to
the callback function.
</div>
<div class="description">
<dl>
<dt>Parameters:</dt>
<dd>
<code>oResponse &lt;Object&gt;</code>
The raw response data to parse.
</dd>
<dd>
<code>oCallbackFn &lt;HTMLFunction&gt;</code>
Callback function defined by oParent object to which to return results.
</dd>
<dd>
<code>sQuery &lt;String&gt;</code>
Query string.
</dd>
<dd>
<code>oParent &lt;Object&gt;</code>
The object instance that has requested data.
</dd>
</dl>
<dl>
<dt>Returns:
<code>
void
</code></dt>
<dd></dd>
</dl>
</div>
</div>
<hr />
</div>
</div>
</div>
<div class="section field inheritance">
<h4>Methods inherited from <a href="YAHOO.widget.DataSource.html">YAHOO.widget.DataSource</a>:</h4>
<div class="content">
<code>
<a class="private" href="YAHOO.widget.DataSource.html#method__addCacheElem">_addCacheElem</a><span class="private">,</span> <a class="private" href="YAHOO.widget.DataSource.html#method__doQueryCache">_doQueryCache</a><span class="private">,</span> <a class="private" href="YAHOO.widget.DataSource.html#method__init">_init</a><span class="private">,</span> <a class="" href="YAHOO.widget.DataSource.html#method_doQuery">doQuery</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#method_flushCache">flushCache</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#method_getResults">getResults</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#method_toString">toString</a>
</code>
</div>
</div>
<div class="section field inheritance">
<h4>Events inherited from <a href="YAHOO.widget.DataSource.html">YAHOO.widget.DataSource</a>:</h4>
<div class="content">
<code>
<a class="" href="YAHOO.widget.DataSource.html#event_cacheFlushEvent">cacheFlushEvent</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#event_cacheQueryEvent">cacheQueryEvent</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#event_dataErrorEvent">dataErrorEvent</a><span class="">,</span> <a class="" href="YAHOO.widget.DataSource.html#event_getCachedResultsEvent">getCachedResultsEvent</a> <a class="" href="YAHOO.widget.DataSource.html#event_getResultsEvent">getResultsEvent</a> <a class="" href="YAHOO.widget.DataSource.html#event_queryEvent">queryEvent</a>
</code>
</div>
</div>
</div>
</div>
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<h4>Modules</h4>
<ul class="content">
<li class=""><a href="module_animation.html">animation</a></li>
<li class="selected"><a href="module_autocomplete.html">autocomplete</a></li>
<li class=""><a href="module_button.html">button</a></li>
<li class=""><a href="module_calendar.html">calendar</a></li>
<li class=""><a href="module_charts.html">charts</a></li>
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<li class=""><a href="module_connection.html">connection</a></li>
<li class=""><a href="module_container.html">container</a></li>
<li class=""><a href="module_cookie.html">cookie</a></li>
<li class=""><a href="module_datasource.html">datasource</a></li>
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<li class=""><a href="module_dragdrop.html">dragdrop</a></li>
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<li class=""><a href="module_get.html">get</a></li>
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<li class=""><a href="module_json.html">json</a></li>
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<li class=""><a href="module_yahoo.html">yahoo</a></li>
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<li class=""><a href="module_yuitest.html">yuitest</a></li>
</ul>
</div>
<div class="module">
<h4>Classes</h4>
<ul class="content">
<li class=""><a href="YAHOO.widget.AutoComplete.html">YAHOO.widget.AutoComplete</a></li>
<li class=""><a href="YAHOO.widget.DataSource.html">YAHOO.widget.DataSource</a></li>
<li class=""><a href="YAHOO.widget.DS_JSArray.html">YAHOO.widget.DS_JSArray</a></li>
<li class=""><a href="YAHOO.widget.DS_JSFunction.html">YAHOO.widget.DS_JSFunction</a></li>
<li class="selected"><a href="YAHOO.widget.DS_ScriptNode.html">YAHOO.widget.DS_ScriptNode</a></li>
<li class=""><a href="YAHOO.widget.DS_XHR.html">YAHOO.widget.DS_XHR</a></li>
</ul>
</div>
<div class="module">
<h4>Files</h4>
<ul class="content">
<li class=""><a href="AutoComplete.js.html">AutoComplete.js</a></li>
<li class=""><a href="DataSource.js.html">DataSource.js</a></li>
</ul>
</div>
<div class="module">
<h4>Properties</h4>
<ul class="content">
<li class="private"><a href="#property__nId">_nId</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class="private"><a href="#property__nPending">_nPending</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_asyncMode">asyncMode</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_callbacks">callbacks</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_getUtility">getUtility</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_scriptCallbackParam">scriptCallbackParam</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_scriptQueryParam">scriptQueryParam</a>
<!--<code>&lt;String&gt;</code>-->
</li>
<li class=""><a href="#property_scriptURI">scriptURI</a>
<!--<code>&lt;String&gt;</code>-->
</li>
</ul>
</div>
<div class="module">
<h4>Methods</h4>
<ul class="content">
<li class="private"><!--<code>void</code>-->
<a href="#method__bumpPendingDown">_bumpPendingDown</a>
</li>
<li class=""><!--<code>void</code>-->
<a href="#method_doQuery">doQuery</a>
</li>
<li class=""><!--<code>void</code>-->
<a href="#method_handleResponse">handleResponse</a>
</li>
</ul>
</div>
</div>
</div>
</div>
<div id="ft">
<hr />
Copyright &copy; 2007 Yahoo! Inc. All rights reserved.
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