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| <li>Summary: </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.heron.resource</a></div> |
| <h2 title="Class TestBolt" class="title">Class TestBolt</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
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| <li><a href="../api/topology/BaseComponent.html" title="class in org.apache.heron.api.topology">org.apache.heron.api.topology.BaseComponent</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../api/bolt/BaseRichBolt.html" title="class in org.apache.heron.api.bolt">org.apache.heron.api.bolt.BaseRichBolt</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.heron.resource.TestBolt</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.io.Serializable</code>, <code><a href="../api/bolt/IBolt.html" title="interface in org.apache.heron.api.bolt">IBolt</a></code>, <code><a href="../api/bolt/IRichBolt.html" title="interface in org.apache.heron.api.bolt">IRichBolt</a></code>, <code><a href="../api/topology/IComponent.html" title="interface in org.apache.heron.api.topology">IComponent</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">TestBolt</span> |
| extends <a href="../api/bolt/BaseRichBolt.html" title="class in org.apache.heron.api.bolt">BaseRichBolt</a></pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../serialized-form.html#org.apache.heron.resource.TestBolt">Serialized Form</a></dd> |
| </dl> |
| </li> |
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| <th class="colFirst" scope="col">Constructor</th> |
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| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">TestBolt</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
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| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#declareOutputFields(org.apache.heron.api.topology.OutputFieldsDeclarer)">declareOutputFields</a></span>​(<a href="../api/topology/OutputFieldsDeclarer.html" title="interface in org.apache.heron.api.topology">OutputFieldsDeclarer</a> outputFieldsDeclarer)</code></th> |
| <td class="colLast"> |
| <div class="block">Declare the output schema for all the streams of this topology.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#execute(org.apache.heron.api.tuple.Tuple)">execute</a></span>​(<a href="../api/tuple/Tuple.html" title="interface in org.apache.heron.api.tuple">Tuple</a> tuple)</code></th> |
| <td class="colLast"> |
| <div class="block">Process a single tuple of input.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getExecuted()">getExecuted</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#prepare(java.util.Map,org.apache.heron.api.topology.TopologyContext,org.apache.heron.api.bolt.OutputCollector)">prepare</a></span>​(java.util.Map<java.lang.String,​java.lang.Object> map, |
| <a href="../api/topology/TopologyContext.html" title="interface in org.apache.heron.api.topology">TopologyContext</a> topologyContext, |
| <a href="../api/bolt/OutputCollector.html" title="class in org.apache.heron.api.bolt">OutputCollector</a> collector)</code></th> |
| <td class="colLast"> |
| <div class="block">Called when a task for this component is initialized within a worker on the cluster.</div> |
| </td> |
| </tr> |
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| </a> |
| <h3>Methods inherited from class org.apache.heron.api.bolt.<a href="../api/bolt/BaseRichBolt.html" title="class in org.apache.heron.api.bolt">BaseRichBolt</a></h3> |
| <code><a href="../api/bolt/BaseRichBolt.html#cleanup()">cleanup</a></code></li> |
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| <h3>Methods inherited from class org.apache.heron.api.topology.<a href="../api/topology/BaseComponent.html" title="class in org.apache.heron.api.topology">BaseComponent</a></h3> |
| <code><a href="../api/topology/BaseComponent.html#getComponentConfiguration()">getComponentConfiguration</a></code></li> |
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| <code><a href="../api/topology/IComponent.html#getComponentConfiguration()">getComponentConfiguration</a></code></li> |
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| <h4>TestBolt</h4> |
| <pre>public TestBolt()</pre> |
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| <a id="prepare(java.util.Map,org.apache.heron.api.topology.TopologyContext,org.apache.heron.api.bolt.OutputCollector)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>prepare</h4> |
| <pre class="methodSignature">public void prepare​(java.util.Map<java.lang.String,​java.lang.Object> map, |
| <a href="../api/topology/TopologyContext.html" title="interface in org.apache.heron.api.topology">TopologyContext</a> topologyContext, |
| <a href="../api/bolt/OutputCollector.html" title="class in org.apache.heron.api.bolt">OutputCollector</a> collector)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../api/bolt/IBolt.html#prepare(java.util.Map,org.apache.heron.api.topology.TopologyContext,org.apache.heron.api.bolt.OutputCollector)">IBolt</a></code></span></div> |
| <div class="block">Called when a task for this component is initialized within a worker on the cluster. |
| It provides the bolt with the environment in which the bolt executes. |
| <p> |
| <p>This includes the:</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>map</code> - The Heron configuration for this bolt. This is the configuration provided to the topology merged in with cluster configuration on this machine.</dd> |
| <dd><code>topologyContext</code> - This object can be used to get information about this task's place within the topology, including the task id and component id of this task, input and output information, etc.</dd> |
| <dd><code>collector</code> - The collector is used to emit tuples from this bolt. Tuples can be emitted at any time, including the prepare and cleanup methods. The collector is thread-safe and should be saved as an instance variable of this bolt object.</dd> |
| </dl> |
| </li> |
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| <a id="execute(org.apache.heron.api.tuple.Tuple)"> |
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| <h4>execute</h4> |
| <pre class="methodSignature">public void execute​(<a href="../api/tuple/Tuple.html" title="interface in org.apache.heron.api.tuple">Tuple</a> tuple)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../api/bolt/IBolt.html#execute(org.apache.heron.api.tuple.Tuple)">IBolt</a></code></span></div> |
| <div class="block">Process a single tuple of input. The Tuple object contains metadata on it |
| about which component/stream/task it came from. The values of the Tuple can |
| be accessed using Tuple#getValue. The IBolt does not have to process the Tuple |
| immediately. It is perfectly fine to hang onto a tuple and process it later |
| (for instance, to do an aggregation or join). |
| <p> |
| <p>Tuples should be emitted using the OutputCollector provided through the prepare method. |
| It is required that all input tuples are acked or failed at some point using the OutputCollector. |
| Otherwise, Heron will be unable to determine when tuples coming off the spouts |
| have been completed.</p> |
| <p> |
| <p>For the common case of acking an input tuple at the end of the execute method, |
| see IBasicBolt which automates this.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>tuple</code> - The input tuple to be processed.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>declareOutputFields</h4> |
| <pre class="methodSignature">public void declareOutputFields​(<a href="../api/topology/OutputFieldsDeclarer.html" title="interface in org.apache.heron.api.topology">OutputFieldsDeclarer</a> outputFieldsDeclarer)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../api/topology/IComponent.html#declareOutputFields(org.apache.heron.api.topology.OutputFieldsDeclarer)">IComponent</a></code></span></div> |
| <div class="block">Declare the output schema for all the streams of this topology.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>outputFieldsDeclarer</code> - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
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| <h4>getExecuted</h4> |
| <pre class="methodSignature">public int getExecuted()</pre> |
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