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| <h2 title="Class SimulatedTemperatureSensor" class="title">Class SimulatedTemperatureSensor</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <li>org.apache.edgent.samples.utils.sensor.SimulatedTemperatureSensor</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd>java.io.Serializable, <a href="../../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a><java.lang.Double></dd> |
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| <pre>public class <span class="typeNameLabel">SimulatedTemperatureSensor</span> |
| extends java.lang.Object |
| implements <a href="../../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a><java.lang.Double></pre> |
| <div class="block">A Simulated temperature sensor. |
| <p> |
| The sensor starts off with an initial value. |
| Each call to <a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#get--"><code>get()</code></a> changes the current value by |
| a random amount between plus/minus a <code>deltaFactor</code>. |
| The new current value is limited to a <code>tempRange</code> |
| and then rounded to 1 fractional digit. |
| </p><p> |
| No temperature scale is implied (e.g., Fahrenheit, Kelvin, ...). |
| The <code>double</code> temperature values are simply generated as described. |
| The user of the class decides how to interpret them. |
| </p><p> |
| Sample use: |
| <pre><code> |
| Topology t = ...; |
| SimulatedTemperatureSensor tempSensor = new SimulatedTemperatureSensor(); |
| TStream<Double> temp = t.poll(tempSensor, 1, TimeUnit.SECONDS); |
| </code></pre></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimpleSimulatedSensor.html" title="class in org.apache.edgent.samples.utils.sensor"><code>SimpleSimulatedSensor</code></a>, |
| <a href="../../../../../../serialized-form.html#org.apache.edgent.samples.utils.sensor.SimulatedTemperatureSensor">Serialized Form</a></dd> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#SimulatedTemperatureSensor--">SimulatedTemperatureSensor</a></span>()</code> |
| <div class="block">Create a temperature sensor.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#SimulatedTemperatureSensor-double-org.apache.edgent.analytics.sensors.Range-double-">SimulatedTemperatureSensor</a></span>(double initialTemp, |
| <a href="../../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a><java.lang.Double> tempRange, |
| double deltaFactor)</code> |
| <div class="block">Create a temperature sensor.</div> |
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| <td class="colFirst"><code>java.lang.Double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#get--">get</a></span>()</code> |
| <div class="block">Get the next sensor value.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#getDeltaFactor--">getDeltaFactor</a></span>()</code> |
| <div class="block">Get the deltaFactor setting</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a><java.lang.Double></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/utils/sensor/SimulatedTemperatureSensor.html#getTempRange--">getTempRange</a></span>()</code> |
| <div class="block">Get the tempRange setting</div> |
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| <h4>SimulatedTemperatureSensor</h4> |
| <pre>public SimulatedTemperatureSensor()</pre> |
| <div class="block">Create a temperature sensor. |
| <p> |
| Same as <code>SimulatedTemperatureSensor(80.0, |
| Ranges.closed(28.0, 112.0), 1.0)</code> |
| </p><p> |
| These default values roughly correspond to normal air temperature |
| in the Fahrenheit scale. |
| </p></div> |
| </li> |
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| <h4>SimulatedTemperatureSensor</h4> |
| <pre>public SimulatedTemperatureSensor(double initialTemp, |
| <a href="../../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a><java.lang.Double> tempRange, |
| double deltaFactor)</pre> |
| <div class="block">Create a temperature sensor. |
| <p> |
| No temperature scale is implied. |
| </p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>initialTemp</code> - the initial temperature. Must be within tempRange.</dd> |
| <dd><code>tempRange</code> - maximum sensor value range</dd> |
| <dd><code>deltaFactor</code> - maximum plus/minus change on each <code>get()</code>. |
| e.g., 1.0 to limit change to +/- 1.0. |
| Must be > 0.0</dd> |
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| <a name="getTempRange--"> |
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| <h4>getTempRange</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a><java.lang.Double> getTempRange()</pre> |
| <div class="block">Get the tempRange setting</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the value</dd> |
| </dl> |
| </li> |
| </ul> |
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| <pre>public double getDeltaFactor()</pre> |
| <div class="block">Get the deltaFactor setting</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the value</dd> |
| </dl> |
| </li> |
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| <h4>get</h4> |
| <pre>public java.lang.Double get()</pre> |
| <div class="block">Get the next sensor value.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/edgent/function/Supplier.html#get--">get</a></code> in interface <code><a href="../../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a><java.lang.Double></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Value supplied by this function.</dd> |
| </dl> |
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