| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (1.8.0_112) on Sun Feb 26 17:08:10 EST 2017 --> |
| <title>JsonTuples (Edgent v1.1.0)</title> |
| <meta name="date" content="2017-02-26"> |
| <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> |
| <script type="text/javascript" src="../../../../../script.js"></script> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="JsonTuples (Edgent v1.1.0)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":9,"i1":9,"i2":9,"i3":9,"i4":9,"i5":9}; |
| var tabs = {65535:["t0","All Methods"],1:["t1","Static Methods"],8:["t4","Concrete Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/JsonTuples.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html" title="class in org.apache.edgent.samples.apps"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../org/apache/edgent/samples/apps/TopologyProviderFactory.html" title="class in org.apache.edgent.samples.apps"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../index.html?org/apache/edgent/samples/apps/JsonTuples.html" target="_top">Frames</a></li> |
| <li><a href="JsonTuples.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.apache.edgent.samples.apps</div> |
| <h2 title="Class JsonTuples" class="title">Class JsonTuples</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.edgent.samples.apps.JsonTuples</li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">JsonTuples</span> |
| extends java.lang.Object</pre> |
| <div class="block">Utilties to ease working working with sensor "samples" by wrapping them |
| in JsonObjects. |
| <p> |
| The Json Tuple sensor "samples" have a standard collection of properties.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#KEY_AGG_BEGIN_TS">KEY_AGG_BEGIN_TS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#KEY_AGG_COUNT">KEY_AGG_COUNT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#KEY_ID">KEY_ID</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#KEY_READING">KEY_READING</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#KEY_TS">KEY_TS</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#JsonTuples--">JsonTuples</a></span>()</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static com.google.gson.JsonElement</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#getStatistic-com.google.gson.JsonObject-org.apache.edgent.analytics.math3.stat.Statistic-">getStatistic</a></span>(com.google.gson.JsonObject jo, |
| <a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a> stat)</code> |
| <div class="block">Get a statistic value from a sample.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static com.google.gson.JsonElement</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#getStatistic-com.google.gson.JsonObject-java.lang.String-org.apache.edgent.analytics.math3.stat.Statistic-">getStatistic</a></span>(com.google.gson.JsonObject jo, |
| java.lang.String valueKey, |
| <a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a> stat)</code> |
| <div class="block">Get a statistic value from a sample.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><com.google.gson.JsonObject,java.lang.String></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#keyFn--">keyFn</a></span>()</code> |
| <div class="block">The partition key function for wrapped sensor samples.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><java.util.List<com.google.gson.JsonObject>,java.lang.String,com.google.gson.JsonObject></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#statistics-org.apache.edgent.analytics.math3.stat.Statistic...-">statistics</a></span>(<a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a>... statistics)</code> |
| <div class="block">Create a function that computes the specified statistics on the list of |
| samples and returns a new sample containing the result.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <T> com.google.gson.JsonObject</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#wrap-org.apache.commons.math3.util.Pair-java.lang.String-">wrap</a></span>(org.apache.commons.math3.util.Pair<java.lang.Long,T> sample, |
| java.lang.String id)</code> |
| <div class="block">Create a JsonObject wrapping a raw <code>Pair<Long msec,T reading>></code> sample.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <T> <a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><com.google.gson.JsonObject></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/JsonTuples.html#wrap-org.apache.edgent.topology.TStream-java.lang.String-">wrap</a></span>(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><org.apache.commons.math3.util.Pair<java.lang.Long,T>> stream, |
| java.lang.String id)</code> |
| <div class="block">Create a stream of JsonObject wrapping a stream of |
| raw <code>Pair<Long msec,T reading>></code> samples.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a name="KEY_ID"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>KEY_ID</h4> |
| <pre>public static final java.lang.String KEY_ID</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.edgent.samples.apps.JsonTuples.KEY_ID">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="KEY_TS"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>KEY_TS</h4> |
| <pre>public static final java.lang.String KEY_TS</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.edgent.samples.apps.JsonTuples.KEY_TS">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="KEY_READING"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>KEY_READING</h4> |
| <pre>public static final java.lang.String KEY_READING</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.edgent.samples.apps.JsonTuples.KEY_READING">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="KEY_AGG_BEGIN_TS"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>KEY_AGG_BEGIN_TS</h4> |
| <pre>public static final java.lang.String KEY_AGG_BEGIN_TS</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.edgent.samples.apps.JsonTuples.KEY_AGG_BEGIN_TS">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="KEY_AGG_COUNT"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>KEY_AGG_COUNT</h4> |
| <pre>public static final java.lang.String KEY_AGG_COUNT</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.edgent.samples.apps.JsonTuples.KEY_AGG_COUNT">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="JsonTuples--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>JsonTuples</h4> |
| <pre>public JsonTuples()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="wrap-org.apache.commons.math3.util.Pair-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>wrap</h4> |
| <pre>public static <T> com.google.gson.JsonObject wrap(org.apache.commons.math3.util.Pair<java.lang.Long,T> sample, |
| java.lang.String id)</pre> |
| <div class="block">Create a JsonObject wrapping a raw <code>Pair<Long msec,T reading>></code> sample.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Tuple type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>sample</code> - the raw sample</dd> |
| <dd><code>id</code> - the sensor's Id</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the wrapped sample</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="wrap-org.apache.edgent.topology.TStream-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>wrap</h4> |
| <pre>public static <T> <a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><com.google.gson.JsonObject> wrap(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><org.apache.commons.math3.util.Pair<java.lang.Long,T>> stream, |
| java.lang.String id)</pre> |
| <div class="block">Create a stream of JsonObject wrapping a stream of |
| raw <code>Pair<Long msec,T reading>></code> samples.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Tuple type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stream</code> - the raw input stream</dd> |
| <dd><code>id</code> - the sensor's Id</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the wrapped stream</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="keyFn--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>keyFn</h4> |
| <pre>public static <a href="../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><com.google.gson.JsonObject,java.lang.String> keyFn()</pre> |
| <div class="block">The partition key function for wrapped sensor samples. |
| <p> |
| The <code>KEY_ID</code> property is returned for the key.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the function</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getStatistic-com.google.gson.JsonObject-org.apache.edgent.analytics.math3.stat.Statistic-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getStatistic</h4> |
| <pre>public static com.google.gson.JsonElement getStatistic(com.google.gson.JsonObject jo, |
| <a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a> stat)</pre> |
| <div class="block">Get a statistic value from a sample. |
| <p> |
| Same as <code>getStatistic(jo, JsonTuples.KEY_READING, stat)</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>jo</code> - the sample</dd> |
| <dd><code>stat</code> - the Statistic of interest</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the JsonElement for the Statistic</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.RuntimeException</code> - of the stat isn't present</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getStatistic-com.google.gson.JsonObject-java.lang.String-org.apache.edgent.analytics.math3.stat.Statistic-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getStatistic</h4> |
| <pre>public static com.google.gson.JsonElement getStatistic(com.google.gson.JsonObject jo, |
| java.lang.String valueKey, |
| <a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a> stat)</pre> |
| <div class="block">Get a statistic value from a sample. |
| <p> |
| Convenience for working with samples containing a property |
| whose value is one or more <a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat"><code>Statistic</code></a> |
| as created by |
| <a href="../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>JsonAnalytics.aggregate()</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>jo</code> - the sample</dd> |
| <dd><code>valueKey</code> - the name of the property containing the JsonObject of Statistics</dd> |
| <dd><code>stat</code> - the Statistic of interest</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the JsonElement for the Statistic</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.RuntimeException</code> - of the stat isn't present</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="statistics-org.apache.edgent.analytics.math3.stat.Statistic...-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>statistics</h4> |
| <pre>public static <a href="../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><java.util.List<com.google.gson.JsonObject>,java.lang.String,com.google.gson.JsonObject> statistics(<a href="../../../../../org/apache/edgent/analytics/math3/stat/Statistic.html" title="enum in org.apache.edgent.analytics.math3.stat">Statistic</a>... statistics)</pre> |
| <div class="block">Create a function that computes the specified statistics on the list of |
| samples and returns a new sample containing the result. |
| <p> |
| The single tuple contains the specified statistics computed over |
| all of the <code>JsonTuple.KEY_READING</code> |
| values from <code>List<JsonObject></code>. |
| <p> |
| The resulting sample contains the properties: |
| <ul> |
| <li>JsonTuple.KEY_ID</li> |
| <li>JsonTuple.KEY_MSEC - msecTimestamp of the last sample in the window</li> |
| <li>JsonTuple.KEY_AGG_BEGIN_MSEC - msecTimestamp of the first sample in the window</li> |
| <li>JsonTuple.KEY_AGG_COUNT - number of samples in the window (<code>value=factor</code>)</li> |
| <li>JsonTuple.KEY_READING - a JsonObject of the statistics |
| as defined by |
| <a href="../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>JsonAnalytics.aggregate()</code></a> |
| </ul> |
| <p> |
| Sample use: |
| <pre><code> |
| TStream<JsonObject> s = ... |
| // reduce s by a factor of 100 with stats MEAN and STDEV |
| TStream<JsonObject> reduced = s.batch(100, statistics(Statistic.MEAN, Statistic.STDDEV)); |
| </code></pre></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>statistics</code> - the statistics to calculate over the window</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>TStream<JsonObject></code> for the reduced <code>stream</code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a name="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/JsonTuples.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| <div class="aboutLanguage"><a href="http://edgent.incubator.apache.org">Apache Edgent (incubating)</a></div> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html" title="class in org.apache.edgent.samples.apps"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../org/apache/edgent/samples/apps/TopologyProviderFactory.html" title="class in org.apache.edgent.samples.apps"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../index.html?org/apache/edgent/samples/apps/JsonTuples.html" target="_top">Frames</a></li> |
| <li><a href="JsonTuples.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| <p class="legalCopy"><small>Copyright © 2017 The Apache Software Foundation. All Rights Reserved - 4744f56-20170226-1707</small></p> |
| </body> |
| </html> |