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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.storm.jms</a></div> |
| <h1 title="Interface JmsTupleProducer" class="title">Interface JmsTupleProducer</h1> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="example/JsonTupleProducer.html" title="class in org.apache.storm.jms.example">JsonTupleProducer</a></code></dd> |
| </dl> |
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| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">JmsTupleProducer</span><span class="extends-implements"> |
| extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></span></div> |
| <div class="block">Interface to define classes that can produce a Storm <code>Values</code> objects |
| from a <code>javax.jms.Message</code> object>. |
| |
| <p>Implementations are also responsible for declaring the output |
| fields they produce. |
| |
| <p>If for some reason the implementation can't process a message |
| (for example if it received a <code>javax.jms.ObjectMessage</code> |
| when it was expecting a <code>javax.jms.TextMessage</code> it should |
| return <code>null</code> to indicate to the <code>JmsSpout</code> that |
| the message could not be processed.</div> |
| </section> |
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| <h2>Method Summary</h2> |
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| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#declareOutputFields(org.apache.storm.topology.OutputFieldsDeclarer)" class="member-name-link">declareOutputFields</a><wbr>(<a href="../topology/OutputFieldsDeclarer.html" title="interface in org.apache.storm.topology">OutputFieldsDeclarer</a> declarer)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Declare the output fields produced by this JmsTupleProducer.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="../tuple/Values.html" title="class in org.apache.storm.tuple">Values</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#toTuple(javax.jms.Message)" class="member-name-link">toTuple</a><wbr>(javax.jms.Message msg)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Process a JMS message object to create a Values object.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </section> |
| </li> |
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| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="toTuple(javax.jms.Message)"> |
| <h3>toTuple</h3> |
| <div class="member-signature"><span class="return-type"><a href="../tuple/Values.html" title="class in org.apache.storm.tuple">Values</a></span> <span class="element-name">toTuple</span><wbr><span class="parameters">(javax.jms.Message msg)</span> |
| throws <span class="exceptions">javax.jms.JMSException</span></div> |
| <div class="block">Process a JMS message object to create a Values object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>msg</code> - - the JMS message</dd> |
| <dt>Returns:</dt> |
| <dd>the Values tuple, or null if the message couldn't be processed.</dd> |
| <dt>Throws:</dt> |
| <dd><code>javax.jms.JMSException</code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="declareOutputFields(org.apache.storm.topology.OutputFieldsDeclarer)"> |
| <h3>declareOutputFields</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">declareOutputFields</span><wbr><span class="parameters">(<a href="../topology/OutputFieldsDeclarer.html" title="interface in org.apache.storm.topology">OutputFieldsDeclarer</a> declarer)</span></div> |
| <div class="block">Declare the output fields produced by this JmsTupleProducer.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>declarer</code> - The OuputFieldsDeclarer for the spout.</dd> |
| </dl> |
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