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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.calcite.adapter.kafka</a></div> |
| <h1 title="Interface KafkaRowConverter" class="title">Interface KafkaRowConverter<K,<wbr>V></h1> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>K</code> - type for Kafka message key, |
| refer to <code>ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG</code>;</dd> |
| <dd><code>V</code> - type for Kafka message value, |
| refer to <code>ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG</code>;</dd> |
| </dl> |
| <dl class="notes"> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="KafkaRowConverterImpl.html" title="class in org.apache.calcite.adapter.kafka">KafkaRowConverterImpl</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">KafkaRowConverter<K,<wbr>V></span></div> |
| <div class="block">Interface to handle formatting between Kafka message and Calcite row.</div> |
| </section> |
| <section class="summary"> |
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| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
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| <div class="table-header col-first">Modifier and Type</div> |
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| <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><a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#rowDataType(java.lang.String)" class="member-name-link">rowDataType</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> topicName)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Generates the row type for a given Kafka topic.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>[]</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#toRow(org.apache.kafka.clients.consumer.ConsumerRecord)" class="member-name-link">toRow</a><wbr>(org.apache.kafka.clients.consumer.ConsumerRecord<<a href="KafkaRowConverter.html" title="type parameter in KafkaRowConverter">K</a>,<wbr><a href="KafkaRowConverter.html" title="type parameter in KafkaRowConverter">V</a>> message)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Parses and reformats a Kafka message from the consumer, |
| to align with row type defined as <a href="#rowDataType(java.lang.String)"><code>rowDataType(String)</code></a>.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </section> |
| </li> |
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| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
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| <li> |
| <section class="detail" id="rowDataType(java.lang.String)"> |
| <h3>rowDataType</h3> |
| <div class="member-signature"><span class="return-type"><a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="element-name">rowDataType</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> topicName)</span></div> |
| <div class="block">Generates the row type for a given Kafka topic.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>topicName</code> - Kafka topic name</dd> |
| <dt>Returns:</dt> |
| <dd>row type</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="toRow(org.apache.kafka.clients.consumer.ConsumerRecord)"> |
| <h3>toRow</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>[]</span> <span class="element-name">toRow</span><wbr><span class="parameters">(org.apache.kafka.clients.consumer.ConsumerRecord<<a href="KafkaRowConverter.html" title="type parameter in KafkaRowConverter">K</a>,<wbr><a href="KafkaRowConverter.html" title="type parameter in KafkaRowConverter">V</a>> message)</span></div> |
| <div class="block">Parses and reformats a Kafka message from the consumer, |
| to align with row type defined as <a href="#rowDataType(java.lang.String)"><code>rowDataType(String)</code></a>.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>message</code> - Raw Kafka message record</dd> |
| <dt>Returns:</dt> |
| <dd>fields in the row</dd> |
| </dl> |
| </section> |
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