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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.storm.redis.bolt</a></div> |
| <h1 title="Class AbstractRedisBolt" class="title">Class AbstractRedisBolt</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance"><a href="../../topology/base/BaseComponent.html" title="class in org.apache.storm.topology.base">org.apache.storm.topology.base.BaseComponent</a> |
| <div class="inheritance"><a href="../../topology/base/BaseRichBolt.html" title="class in org.apache.storm.topology.base">org.apache.storm.topology.base.BaseRichBolt</a> |
| <div class="inheritance"><a href="../../topology/base/BaseTickTupleAwareRichBolt.html" title="class in org.apache.storm.topology.base">org.apache.storm.topology.base.BaseTickTupleAwareRichBolt</a> |
| <div class="inheritance">org.apache.storm.redis.bolt.AbstractRedisBolt</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</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>, <code><a href="../../task/IBolt.html" title="interface in org.apache.storm.task">IBolt</a></code>, <code><a href="../../topology/IComponent.html" title="interface in org.apache.storm.topology">IComponent</a></code>, <code><a href="../../topology/IRichBolt.html" title="interface in org.apache.storm.topology">IRichBolt</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="RedisFilterBolt.html" title="class in org.apache.storm.redis.bolt">RedisFilterBolt</a></code>, <code><a href="RedisLookupBolt.html" title="class in org.apache.storm.redis.bolt">RedisLookupBolt</a></code>, <code><a href="RedisStoreBolt.html" title="class in org.apache.storm.redis.bolt">RedisStoreBolt</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">AbstractRedisBolt</span> |
| <span class="extends-implements">extends <a href="../../topology/base/BaseTickTupleAwareRichBolt.html" title="class in org.apache.storm.topology.base">BaseTickTupleAwareRichBolt</a></span></div> |
| <div class="block">AbstractRedisBolt class is for users to implement custom bolts which makes interaction with Redis. |
| |
| <p>Due to environment abstraction, AbstractRedisBolt provides JedisCommands which contains only single key operations. |
| |
| <p>Custom Bolts may want to follow this pattern: |
| |
| <p><blockquote><pre> |
| JedisCommands jedisCommands = null; |
| try { |
| jedisCommand = getInstance(); |
| // do some works |
| } finally { |
| if (jedisCommand != null) { |
| returnInstance(jedisCommand); |
| } |
| } |
| </pre></blockquote></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../serialized-form.html#org.apache.storm.redis.bolt.AbstractRedisBolt">Serialized Form</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>protected <a href="../../task/OutputCollector.html" title="class in org.apache.storm.task">OutputCollector</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#collector" class="member-name-link">collector</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor-summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.storm.redis.common.config.JedisClusterConfig)" class="member-name-link">AbstractRedisBolt</a><wbr>(<a href="../common/config/JedisClusterConfig.html" title="class in org.apache.storm.redis.common.config">JedisClusterConfig</a> config)</code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Constructor for Redis Cluster environment (JedisCluster).</div> |
| </div> |
| <div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(org.apache.storm.redis.common.config.JedisPoolConfig)" class="member-name-link">AbstractRedisBolt</a><wbr>(<a href="../common/config/JedisPoolConfig.html" title="class in org.apache.storm.redis.common.config">JedisPoolConfig</a> config)</code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Constructor for single Redis environment (JedisPool).</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <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-tab4"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#cleanup()" class="member-name-link">cleanup</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Called when an IBolt is going to be shutdown.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="../common/container/JedisCommandsContainer.html" title="interface in org.apache.storm.redis.common.container">JedisCommandsContainer</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getInstance()" class="member-name-link">getInstance</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Borrow JedisCommands instance from container.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#prepare(java.util.Map,org.apache.storm.task.TopologyContext,org.apache.storm.task.OutputCollector)" class="member-name-link">prepare</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>> map, |
| <a href="../../task/TopologyContext.html" title="class in org.apache.storm.task">TopologyContext</a> topologyContext, |
| <a href="../../task/OutputCollector.html" title="class in org.apache.storm.task">OutputCollector</a> collector)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Called when a task for this component is initialized within a worker on the cluster.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.storm.topology.base.BaseTickTupleAwareRichBolt">Methods inherited from class org.apache.storm.topology.base.<a href="../../topology/base/BaseTickTupleAwareRichBolt.html" title="class in org.apache.storm.topology.base">BaseTickTupleAwareRichBolt</a></h3> |
| <code><a href="../../topology/base/BaseTickTupleAwareRichBolt.html#execute(org.apache.storm.tuple.Tuple)">execute</a>, <a href="../../topology/base/BaseTickTupleAwareRichBolt.html#onTickTuple(org.apache.storm.tuple.Tuple)">onTickTuple</a>, <a href="../../topology/base/BaseTickTupleAwareRichBolt.html#process(org.apache.storm.tuple.Tuple)">process</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.storm.topology.base.BaseComponent">Methods inherited from class org.apache.storm.topology.base.<a href="../../topology/base/BaseComponent.html" title="class in org.apache.storm.topology.base">BaseComponent</a></h3> |
| <code><a href="../../topology/base/BaseComponent.html#getComponentConfiguration()">getComponentConfiguration</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.storm.topology.IComponent">Methods inherited from interface org.apache.storm.topology.<a href="../../topology/IComponent.html" title="interface in org.apache.storm.topology">IComponent</a></h3> |
| <code><a href="../../topology/IComponent.html#declareOutputFields(org.apache.storm.topology.OutputFieldsDeclarer)">declareOutputFields</a>, <a href="../../topology/IComponent.html#getComponentConfiguration()">getComponentConfiguration</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="collector"> |
| <h3>collector</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="../../task/OutputCollector.html" title="class in org.apache.storm.task">OutputCollector</a></span> <span class="element-name">collector</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor-detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>(org.apache.storm.redis.common.config.JedisPoolConfig)"> |
| <h3>AbstractRedisBolt</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name">AbstractRedisBolt</span><wbr><span class="parameters">(<a href="../common/config/JedisPoolConfig.html" title="class in org.apache.storm.redis.common.config">JedisPoolConfig</a> config)</span></div> |
| <div class="block">Constructor for single Redis environment (JedisPool).</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>config</code> - configuration for initializing JedisPool</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="<init>(org.apache.storm.redis.common.config.JedisClusterConfig)"> |
| <h3>AbstractRedisBolt</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name">AbstractRedisBolt</span><wbr><span class="parameters">(<a href="../common/config/JedisClusterConfig.html" title="class in org.apache.storm.redis.common.config">JedisClusterConfig</a> config)</span></div> |
| <div class="block">Constructor for Redis Cluster environment (JedisCluster).</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>config</code> - configuration for initializing JedisCluster</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="prepare(java.util.Map,org.apache.storm.task.TopologyContext,org.apache.storm.task.OutputCollector)"> |
| <h3>prepare</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">prepare</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>> map, |
| <a href="../../task/TopologyContext.html" title="class in org.apache.storm.task">TopologyContext</a> topologyContext, |
| <a href="../../task/OutputCollector.html" title="class in org.apache.storm.task">OutputCollector</a> collector)</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>This includes the:</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>map</code> - The Storm 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> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getInstance()"> |
| <h3>getInstance</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="../common/container/JedisCommandsContainer.html" title="interface in org.apache.storm.redis.common.container">JedisCommandsContainer</a></span> <span class="element-name">getInstance</span>()</div> |
| <div class="block">Borrow JedisCommands instance from container.<p/> |
| JedisCommands is an interface which contains single key operations.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>implementation of JedisCommands</dd> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../common/container/JedisCommandsContainer.html" title="interface in org.apache.storm.redis.common.container"><code>JedisCommandsContainer</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="cleanup()"> |
| <h3>cleanup</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">cleanup</span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../../task/IBolt.html#cleanup()">IBolt</a></code></span></div> |
| <div class="block">Called when an IBolt is going to be shutdown. Storm will make a best-effort attempt to call this if the worker shutdown is orderly. |
| The <a href="../../Config.html#SUPERVISOR_WORKER_SHUTDOWN_SLEEP_SECS"><code>Config.SUPERVISOR_WORKER_SHUTDOWN_SLEEP_SECS</code></a> setting controls how long orderly shutdown is allowed to take. |
| There is no guarantee that cleanup will be called if shutdown is not orderly, or if the shutdown exceeds the time limit. |
| |
| <p>The one context where cleanup is guaranteed to be called is when a topology is killed when running Storm in local mode.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../../task/IBolt.html#cleanup()">cleanup</a></code> in interface <code><a href="../../task/IBolt.html" title="interface in org.apache.storm.task">IBolt</a></code></dd> |
| <dt>Overrides:</dt> |
| <dd><code><a href="../../topology/base/BaseRichBolt.html#cleanup()">cleanup</a></code> in class <code><a href="../../topology/base/BaseRichBolt.html" title="class in org.apache.storm.topology.base">BaseRichBolt</a></code></dd> |
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