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| <h2 title="Class BaseTickTupleAwareRichBolt" class="title">Class BaseTickTupleAwareRichBolt</h2> |
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| <pre>public abstract class <span class="typeNameLabel">BaseTickTupleAwareRichBolt</span> |
| extends <a href="BaseRichBolt.html" title="class in org.apache.storm.topology.base">BaseRichBolt</a></pre> |
| <div class="block">This class is based on BaseRichBolt, but is aware of tick tuple.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../serialized-form.html#org.apache.storm.topology.base.BaseTickTupleAwareRichBolt">Serialized Form</a></dd> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">BaseTickTupleAwareRichBolt</a></span>()</code></th> |
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| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#execute(org.apache.storm.tuple.Tuple)">execute</a></span>​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</code></th> |
| <td class="colLast"> |
| <div class="block">Process a single tuple of input.</div> |
| </td> |
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| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onTickTuple(org.apache.storm.tuple.Tuple)">onTickTuple</a></span>​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</code></th> |
| <td class="colLast"> |
| <div class="block">Process a single tick tuple of input.</div> |
| </td> |
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| <td class="colFirst"><code>protected abstract void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#process(org.apache.storm.tuple.Tuple)">process</a></span>​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</code></th> |
| <td class="colLast"> |
| <div class="block">Process a single non-tick tuple of input.</div> |
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| <code><a href="../../task/IBolt.html#prepare(java.util.Map,org.apache.storm.task.TopologyContext,org.apache.storm.task.OutputCollector)">prepare</a></code></li> |
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| <h4>BaseTickTupleAwareRichBolt</h4> |
| <pre>public BaseTickTupleAwareRichBolt()</pre> |
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| <h4>execute</h4> |
| <pre class="methodSignature">public void execute​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</pre> |
| <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, Storm 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 tuple to process.</dd> |
| </dl> |
| </li> |
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| <a id="onTickTuple(org.apache.storm.tuple.Tuple)"> |
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| <h4>onTickTuple</h4> |
| <pre class="methodSignature">protected void onTickTuple​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</pre> |
| <div class="block">Process a single tick tuple of input. Tick tuple doesn't need to be acked. |
| It provides default "DO NOTHING" implementation for convenient. Override this method if needed. |
| <p> |
| More details on <a href="../../task/IBolt.html#execute(org.apache.storm.tuple.Tuple)"><code>IBolt.execute(Tuple)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>tuple</code> - The input tuple to be processed.</dd> |
| </dl> |
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| <h4>process</h4> |
| <pre class="methodSignature">protected abstract void process​(<a href="../../tuple/Tuple.html" title="interface in org.apache.storm.tuple">Tuple</a> tuple)</pre> |
| <div class="block">Process a single non-tick tuple of input. Implementation needs to handle ack manually. |
| More details on <a href="../../task/IBolt.html#execute(org.apache.storm.tuple.Tuple)"><code>IBolt.execute(Tuple)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>tuple</code> - The input tuple to be processed.</dd> |
| </dl> |
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