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| <title>IComponent (Heron Java API)</title> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.storm.topology</a></div> |
| <h2 title="Interface IComponent" class="title">Interface IComponent</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code>java.io.Serializable</code></dd> |
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| <dl> |
| <dt>All Known Subinterfaces:</dt> |
| <dd><code><a href="IBasicBolt.html" title="interface in org.apache.storm.topology">IBasicBolt</a></code>, <code><a href="IRichBolt.html" title="interface in org.apache.storm.topology">IRichBolt</a></code>, <code><a href="IRichSpout.html" title="interface in org.apache.storm.topology">IRichSpout</a></code>, <code><a href="IWindowedBolt.html" title="interface in org.apache.storm.topology">IWindowedBolt</a></code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="../examples/AckingTopology.AckingTestWordSpout.html" title="class in org.apache.storm.examples">AckingTopology.AckingTestWordSpout</a></code>, <code><a href="../examples/AckingTopology.ExclamationBolt.html" title="class in org.apache.storm.examples">AckingTopology.ExclamationBolt</a></code>, <code><a href="base/BaseBasicBolt.html" title="class in org.apache.storm.topology.base">BaseBasicBolt</a></code>, <code><a href="base/BaseComponent.html" title="class in org.apache.storm.topology.base">BaseComponent</a></code>, <code><a href="base/BaseRichBolt.html" title="class in org.apache.storm.topology.base">BaseRichBolt</a></code>, <code><a href="base/BaseRichSpout.html" title="class in org.apache.storm.topology.base">BaseRichSpout</a></code>, <code><a href="base/BaseTickTupleAwareRichBolt.html" title="class in org.apache.storm.topology.base">BaseTickTupleAwareRichBolt</a></code>, <code><a href="base/BaseWindowedBolt.html" title="class in org.apache.storm.topology.base">BaseWindowedBolt</a></code>, <code><a href="BasicBoltExecutor.html" title="class in org.apache.storm.topology">BasicBoltExecutor</a></code>, <code><a href="../examples/CustomGroupingTopology.MyBolt.html" title="class in org.apache.storm.examples">CustomGroupingTopology.MyBolt</a></code>, <code><a href="../../heron/examples/eco/EvenAndOddBolt.html" title="class in org.apache.heron.examples.eco">EvenAndOddBolt</a></code>, <code><a href="../examples/ExclamationTopology.ExclamationBolt.html" title="class in org.apache.storm.examples">ExclamationTopology.ExclamationBolt</a></code>, <code><a href="../starter/ExclamationTopology.ExclamationBolt.html" title="class in org.apache.storm.starter">ExclamationTopology.ExclamationBolt</a></code>, <code><a href="../../heron/examples/eco/LogInfoBolt.html" title="class in org.apache.heron.examples.eco">LogInfoBolt</a></code>, <code><a href="../examples/MultiSpoutExclamationTopology.ExclamationBolt.html" title="class in org.apache.storm.examples">MultiSpoutExclamationTopology.ExclamationBolt</a></code>, <code><a href="../examples/bolt/PrinterBolt.html" title="class in org.apache.storm.examples.bolt">PrinterBolt</a></code>, <code><a href="../examples/spout/RandomIntegerSpout.html" title="class in org.apache.storm.examples.spout">RandomIntegerSpout</a></code>, <code><a href="../examples/SentenceWordCountTopology.FastRandomSentenceSpout.html" title="class in org.apache.storm.examples">SentenceWordCountTopology.FastRandomSentenceSpout</a></code>, <code><a href="../examples/SentenceWordCountTopology.SplitSentence.html" title="class in org.apache.storm.examples">SentenceWordCountTopology.SplitSentence</a></code>, <code><a href="../examples/SentenceWordCountTopology.WordCount.html" title="class in org.apache.storm.examples">SentenceWordCountTopology.WordCount</a></code>, <code><a href="../examples/bolt/SlidingWindowSumBolt.html" title="class in org.apache.storm.examples.bolt">SlidingWindowSumBolt</a></code>, <code><a href="../../heron/eco/builder/storm/StormStreamBuilderTest.MockIBasicBolt.html" title="class in org.apache.heron.eco.builder.storm">StormStreamBuilderTest.MockIBasicBolt</a></code>, <code><a href="../../heron/examples/eco/TestFibonacciSpout.html" title="class in org.apache.heron.examples.eco">TestFibonacciSpout</a></code>, <code><a href="../../heron/examples/eco/TestIBasicPrintBolt.html" title="class in org.apache.heron.examples.eco">TestIBasicPrintBolt</a></code>, <code><a href="../../heron/examples/eco/TestNameCounter.html" title="class in org.apache.heron.examples.eco">TestNameCounter</a></code>, <code><a href="../../heron/examples/eco/TestNameSpout.html" title="class in org.apache.heron.examples.eco">TestNameSpout</a></code>, <code><a href="../../heron/examples/eco/TestPrintBolt.html" title="class in org.apache.heron.examples.eco">TestPrintBolt</a></code>, <code><a href="../../heron/examples/eco/TestWindowBolt.html" title="class in org.apache.heron.examples.eco">TestWindowBolt</a></code>, <code><a href="../examples/spout/TestWordSpout.html" title="class in org.apache.storm.examples.spout">TestWordSpout</a></code>, <code><a href="../testing/TestWordSpout.html" title="class in org.apache.storm.testing">TestWordSpout</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public interface <span class="typeNameLabel">IComponent</span> |
| extends java.io.Serializable</pre> |
| <div class="block">Common methods for all possible components in a topology. This interface is used |
| when defining topologies using the Java API.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </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.storm.topology.OutputFieldsDeclarer)">declareOutputFields</a></span>​(<a href="OutputFieldsDeclarer.html" title="interface in org.apache.storm.topology">OutputFieldsDeclarer</a> declarer)</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>java.util.Map<java.lang.String,​java.lang.Object></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getComponentConfiguration()">getComponentConfiguration</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Declare configuration specific to this component.</div> |
| </td> |
| </tr> |
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| <h4>declareOutputFields</h4> |
| <pre class="methodSignature">void declareOutputFields​(<a href="OutputFieldsDeclarer.html" title="interface in org.apache.storm.topology">OutputFieldsDeclarer</a> declarer)</pre> |
| <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>declarer</code> - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream</dd> |
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| <h4>getComponentConfiguration</h4> |
| <pre class="methodSignature">java.util.Map<java.lang.String,​java.lang.Object> getComponentConfiguration()</pre> |
| <div class="block">Declare configuration specific to this component. Only a subset of the "topology.*" configs can |
| be overridden. The component configuration can be further overridden when constructing the |
| topology using <a href="TopologyBuilder.html" title="class in org.apache.storm.topology"><code>TopologyBuilder</code></a></div> |
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