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<a href="#pub-methods">Public Member Functions</a> &#124;
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<div class="title">impala::SetMetric&lt; T &gt; Class Template Reference</div> </div>
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<p><a class="el" href="classimpala_1_1Metric.html" title="TODO: Add ToThrift() for conversion to an RPC-friendly format. ">Metric</a> whose value is a set of items.
<a href="classimpala_1_1SetMetric.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>&gt;</code></p>
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Collaboration diagram for impala::SetMetric&lt; T &gt;:</div>
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Public Member Functions</h2></td></tr>
<tr class="memitem:ae4e2a5f0777b4e7bd63f09af99267537"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#ae4e2a5f0777b4e7bd63f09af99267537">SetMetric</a> (const std::string &amp;<a class="el" href="classimpala_1_1Metric.html#a56211a0cc08bb2e10a0c89ebe5b152d9">key</a>, const std::set&lt; T &gt; &amp;value, const std::string &amp;<a class="el" href="classimpala_1_1Metric.html#a80682167db8743e5c8e38e73ad55f0c3">description</a>=&quot;&quot;)</td></tr>
<tr class="separator:ae4e2a5f0777b4e7bd63f09af99267537"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac59238aa3dd0de4a1228e7a80a63245c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#ac59238aa3dd0de4a1228e7a80a63245c">Add</a> (const T &amp;item)</td></tr>
<tr class="memdesc:ac59238aa3dd0de4a1228e7a80a63245c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Put an item in this set. <a href="#ac59238aa3dd0de4a1228e7a80a63245c">More...</a><br/></td></tr>
<tr class="separator:ac59238aa3dd0de4a1228e7a80a63245c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abe66e5ed5d85757c19e320c83a7d8efb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#abe66e5ed5d85757c19e320c83a7d8efb">Remove</a> (const T &amp;item)</td></tr>
<tr class="memdesc:abe66e5ed5d85757c19e320c83a7d8efb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Remove an item from this set by value. <a href="#abe66e5ed5d85757c19e320c83a7d8efb">More...</a><br/></td></tr>
<tr class="separator:abe66e5ed5d85757c19e320c83a7d8efb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a218c543682f74ad1e87496240947006d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#a218c543682f74ad1e87496240947006d">Reset</a> ()</td></tr>
<tr class="separator:a218c543682f74ad1e87496240947006d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7f09442f83c0f86c1d77719386a4458f"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#a7f09442f83c0f86c1d77719386a4458f">ToJson</a> (rapidjson::Document *document, rapidjson::Value *value)</td></tr>
<tr class="memdesc:a7f09442f83c0f86c1d77719386a4458f"><td class="mdescLeft">&#160;</td><td class="mdescRight">name, value, human_readable, description <a href="#a7f09442f83c0f86c1d77719386a4458f">More...</a><br/></td></tr>
<tr class="separator:a7f09442f83c0f86c1d77719386a4458f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af094f2cfbb1e42cf8d36b2795a6b3788"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#af094f2cfbb1e42cf8d36b2795a6b3788">ToLegacyJson</a> (rapidjson::Document *document)</td></tr>
<tr class="memdesc:af094f2cfbb1e42cf8d36b2795a6b3788"><td class="mdescLeft">&#160;</td><td class="mdescRight">This method is kept for backwards-compatibility with CM5.0. <a href="#af094f2cfbb1e42cf8d36b2795a6b3788">More...</a><br/></td></tr>
<tr class="separator:af094f2cfbb1e42cf8d36b2795a6b3788"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abb6ad6b22d84f44aa09a733136381ead"><td class="memItemLeft" align="right" valign="top">virtual std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#abb6ad6b22d84f44aa09a733136381ead">ToHumanReadable</a> ()</td></tr>
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<tr class="memitem:a56211a0cc08bb2e10a0c89ebe5b152d9"><td class="memItemLeft" align="right" valign="top">const std::string &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1Metric.html#a56211a0cc08bb2e10a0c89ebe5b152d9">key</a> () const </td></tr>
<tr class="separator:a56211a0cc08bb2e10a0c89ebe5b152d9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a80682167db8743e5c8e38e73ad55f0c3"><td class="memItemLeft" align="right" valign="top">const std::string &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1Metric.html#a80682167db8743e5c8e38e73ad55f0c3">description</a> () const </td></tr>
<tr class="separator:a80682167db8743e5c8e38e73ad55f0c3"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr class="memitem:a05010f15c634161716da4e8451dba06d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1Metric.html#a05010f15c634161716da4e8451dba06d">AddStandardFields</a> (rapidjson::Document *document, rapidjson::Value *val)</td></tr>
<tr class="separator:a05010f15c634161716da4e8451dba06d"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr class="memitem:abfaeffb213edb0d448f5b07638ee6963"><td class="memItemLeft" align="right" valign="top">const std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1Metric.html#abfaeffb213edb0d448f5b07638ee6963">key_</a></td></tr>
<tr class="memdesc:abfaeffb213edb0d448f5b07638ee6963"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unique key identifying this metric. <a href="#abfaeffb213edb0d448f5b07638ee6963">More...</a><br/></td></tr>
<tr class="separator:abfaeffb213edb0d448f5b07638ee6963"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a27ca97f61ec3c3ea2608bb51b78c33ae"><td class="memItemLeft" align="right" valign="top">const std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1Metric.html#a27ca97f61ec3c3ea2608bb51b78c33ae">description_</a></td></tr>
<tr class="separator:a27ca97f61ec3c3ea2608bb51b78c33ae"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr class="memitem:a7404e712e16359098ae3f95be49b779e"><td class="memItemLeft" align="right" valign="top">boost::mutex&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#a7404e712e16359098ae3f95be49b779e">lock_</a></td></tr>
<tr class="memdesc:a7404e712e16359098ae3f95be49b779e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Lock protecting the set. <a href="#a7404e712e16359098ae3f95be49b779e">More...</a><br/></td></tr>
<tr class="separator:a7404e712e16359098ae3f95be49b779e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a60e4a174d9b5cd16916cc04523e97cc1"><td class="memItemLeft" align="right" valign="top">std::set&lt; T &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1SetMetric.html#a60e4a174d9b5cd16916cc04523e97cc1">value_</a></td></tr>
<tr class="memdesc:a60e4a174d9b5cd16916cc04523e97cc1"><td class="mdescLeft">&#160;</td><td class="mdescRight">The set of items. <a href="#a60e4a174d9b5cd16916cc04523e97cc1">More...</a><br/></td></tr>
<tr class="separator:a60e4a174d9b5cd16916cc04523e97cc1"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename T&gt;<br/>
class impala::SetMetric&lt; T &gt;</h3>
<p><a class="el" href="classimpala_1_1Metric.html" title="TODO: Add ToThrift() for conversion to an RPC-friendly format. ">Metric</a> whose value is a set of items. </p>
<p>Collection metrics are those whose values have more structure than simple scalar types. Therefore they need specialised <a class="el" href="classimpala_1_1SetMetric.html#a7f09442f83c0f86c1d77719386a4458f" title="name, value, human_readable, description ">ToJson()</a> methods, and typically a specialised API for updating the values they contain. </p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00043">43</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a class="anchor" id="ae4e2a5f0777b4e7bd63f09af99267537"></a>
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template&lt;typename T&gt; </div>
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<td class="memname"><a class="el" href="classimpala_1_1SetMetric.html">impala::SetMetric</a>&lt; T &gt;::<a class="el" href="classimpala_1_1SetMetric.html">SetMetric</a> </td>
<td>(</td>
<td class="paramtype">const std::string &amp;&#160;</td>
<td class="paramname"><em>key</em>, </td>
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<td class="paramkey"></td>
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<td class="paramname"><em>description</em> = <code>&quot;&quot;</code>&#160;</td>
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<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00045">45</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void <a class="el" href="classimpala_1_1SetMetric.html">impala::SetMetric</a>&lt; T &gt;::Add </td>
<td>(</td>
<td class="paramtype">const T &amp;&#160;</td>
<td class="paramname"><em>item</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Put an item in this set. </p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00049">49</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
<p>Referenced by <a class="el" href="statestore_8cc_source.html#l00352">impala::Statestore::RegisterSubscriber()</a>, and <a class="el" href="metrics-test_8cc_source.html#l00098">impala::TEST()</a>.</p>
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<td class="memname">void Metric::AddStandardFields </td>
<td>(</td>
<td class="paramtype">rapidjson::Document *&#160;</td>
<td class="paramname"><em>document</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">rapidjson::Value *&#160;</td>
<td class="paramname"><em>val</em>&#160;</td>
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<td>)</td>
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<p>Convenience method to add standard fields (name, description, human readable string) to 'val'. </p>
<p>Definition at line <a class="el" href="metrics_8cc_source.html#l00046">46</a> of file <a class="el" href="metrics_8cc_source.html">metrics.cc</a>.</p>
<p>References <a class="el" href="cpu-info_8cc_source.html#l00050">impala::name</a>.</p>
<p>Referenced by <a class="el" href="collection-metrics_8h_source.html#l00062">impala::SetMetric&lt; std::string &gt;::ToJson()</a>, <a class="el" href="collection-metrics_8h_source.html#l00123">impala::StatsMetric&lt; double &gt;::ToJson()</a>, and <a class="el" href="metrics_8h_source.html#l00140">impala::SimpleMetric&lt; T, metric_kind &gt;::ToJson()</a>.</p>
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<td class="memname">const std::string&amp; impala::Metric::description </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Definition at line <a class="el" href="metrics_8h_source.html#l00072">72</a> of file <a class="el" href="metrics_8h_source.html">metrics.h</a>.</p>
<p>References <a class="el" href="metrics_8h_source.html#l00080">impala::Metric::description_</a>.</p>
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<p>Definition at line <a class="el" href="metrics_8h_source.html#l00071">71</a> of file <a class="el" href="metrics_8h_source.html">metrics.h</a>.</p>
<p>References <a class="el" href="metrics_8h_source.html#l00076">impala::Metric::key_</a>.</p>
<p>Referenced by <a class="el" href="metrics_8h_source.html#l00131">impala::SimpleMetric&lt; T, metric_kind &gt;::Increment()</a>.</p>
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<p>Remove an item from this set by value. </p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00055">55</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
<p>Referenced by <a class="el" href="metrics-test_8cc_source.html#l00098">impala::TEST()</a>, and <a class="el" href="statestore_8cc_source.html#l00714">impala::Statestore::UnregisterSubscriber()</a>.</p>
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<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00060">60</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
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<p>Writes a human-readable representation of this metric to 'out'. This is the representation that is often displayed in webpages etc. </p>
<p>Implements <a class="el" href="classimpala_1_1Metric.html#a0927716b77c734cdda1c72b8f7314230">impala::Metric</a>.</p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00085">85</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
<p>Referenced by <a class="el" href="metrics-test_8cc_source.html#l00098">impala::TEST()</a>.</p>
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<p>name, value, human_readable, description </p>
<p>Builds a new Value into 'val', using (if required) the allocator from 'document'. Should set the following fields where appropriate: </p>
<p>Implements <a class="el" href="classimpala_1_1Metric.html#a9ffe6624e9683bf07561246655347285">impala::Metric</a>.</p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00062">62</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
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<p>This method is kept for backwards-compatibility with CM5.0. </p>
<p>Adds a new json value directly to 'document' of the form: "name" : "human-readable-string" </p>
<p>Implements <a class="el" href="classimpala_1_1Metric.html#a192ffba4fa4b4f5fb797af1cd7adcce1">impala::Metric</a>.</p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00075">75</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<p>Description of this metric. TODO: share one copy amongst metrics with the same description. </p>
<p>Definition at line <a class="el" href="metrics_8h_source.html#l00080">80</a> of file <a class="el" href="metrics_8h_source.html">metrics.h</a>.</p>
<p>Referenced by <a class="el" href="metrics_8h_source.html#l00072">impala::Metric::description()</a>.</p>
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<p>Unique key identifying this metric. </p>
<p>Definition at line <a class="el" href="metrics_8h_source.html#l00076">76</a> of file <a class="el" href="metrics_8h_source.html">metrics.h</a>.</p>
<p>Referenced by <a class="el" href="metrics_8h_source.html#l00071">impala::Metric::key()</a>, <a class="el" href="collection-metrics_8h_source.html#l00075">impala::SetMetric&lt; std::string &gt;::ToLegacyJson()</a>, <a class="el" href="collection-metrics_8h_source.html#l00147">impala::StatsMetric&lt; double &gt;::ToLegacyJson()</a>, and <a class="el" href="metrics_8h_source.html#l00160">impala::SimpleMetric&lt; T, metric_kind &gt;::ToLegacyJson()</a>.</p>
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<p>Lock protecting the set. </p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00094">94</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
<p>Referenced by <a class="el" href="collection-metrics_8h_source.html#l00049">impala::SetMetric&lt; std::string &gt;::Add()</a>, and <a class="el" href="collection-metrics_8h_source.html#l00055">impala::SetMetric&lt; std::string &gt;::Remove()</a>.</p>
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<p>The set of items. </p>
<p>Definition at line <a class="el" href="collection-metrics_8h_source.html#l00097">97</a> of file <a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a>.</p>
<p>Referenced by <a class="el" href="collection-metrics_8h_source.html#l00049">impala::SetMetric&lt; std::string &gt;::Add()</a>, <a class="el" href="collection-metrics_8h_source.html#l00055">impala::SetMetric&lt; std::string &gt;::Remove()</a>, <a class="el" href="collection-metrics_8h_source.html#l00060">impala::SetMetric&lt; std::string &gt;::Reset()</a>, <a class="el" href="collection-metrics_8h_source.html#l00085">impala::SetMetric&lt; std::string &gt;::ToHumanReadable()</a>, <a class="el" href="collection-metrics_8h_source.html#l00062">impala::SetMetric&lt; std::string &gt;::ToJson()</a>, and <a class="el" href="collection-metrics_8h_source.html#l00075">impala::SetMetric&lt; std::string &gt;::ToLegacyJson()</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>be/src/util/<a class="el" href="collection-metrics_8h_source.html">collection-metrics.h</a></li>
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