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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.state</a></div> |
| <h1 title="Interface State" class="title">Interface State</h1> |
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| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Known Subinterfaces:</dt> |
| <dd><code><a href="KeyValueState.html" title="interface in org.apache.storm.state">KeyValueState</a><K,<wbr>V></code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="InMemoryKeyValueState.html" title="class in org.apache.storm.state">InMemoryKeyValueState</a></code>, <code><a href="../redis/state/RedisKeyValueState.html" title="class in org.apache.storm.redis.state">RedisKeyValueState</a></code></dd> |
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| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">State</span></div> |
| <div class="block">The state of the component that is either managed by the framework (e.g in case of <a href="../topology/IStatefulBolt.html" title="interface in org.apache.storm.topology"><code>IStatefulBolt</code></a>) or managed by the the |
| individual components themselves.</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> |
| <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="#commit()" class="member-name-link">commit</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Persist the current state.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#commit(long)" class="member-name-link">commit</a><wbr>(long txid)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Commit a previously prepared transaction.</div> |
| </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="#prepareCommit(long)" class="member-name-link">prepareCommit</a><wbr>(long txid)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Invoked by the framework to prepare a transaction for commit.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#rollback()" class="member-name-link">rollback</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Rollback a prepared transaction to the previously committed state.</div> |
| </div> |
| </div> |
| </div> |
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| </li> |
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| </section> |
| <section class="details"> |
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| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="prepareCommit(long)"> |
| <h3>prepareCommit</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">prepareCommit</span><wbr><span class="parameters">(long txid)</span></div> |
| <div class="block">Invoked by the framework to prepare a transaction for commit. It should be possible to commit the prepared state later. |
| <p> |
| The same txid can be prepared again, but the next txid cannot be prepared when previous one is not yet committed. |
| </p></div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>txid</code> - the transaction id</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="commit(long)"> |
| <h3>commit</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">commit</span><wbr><span class="parameters">(long txid)</span></div> |
| <div class="block">Commit a previously prepared transaction. It should be possible to retrieve a committed state later.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>txid</code> - the transaction id</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="commit()"> |
| <h3>commit</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">commit</span>()</div> |
| <div class="block">Persist the current state. This is used when the component manages the state.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="rollback()"> |
| <h3>rollback</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">rollback</span>()</div> |
| <div class="block">Rollback a prepared transaction to the previously committed state.</div> |
| </section> |
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