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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.storm.windowing</a></div> |
| <h1 title="Interface WindowLifecycleListener" class="title">Interface WindowLifecycleListener<T></h1> |
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| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - The type of Event in the window (e.g. Tuple).</dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">WindowLifecycleListener<T></span></div> |
| <div class="block">A callback for expiry, activation of events tracked by the <a href="WindowManager.html" title="class in org.apache.storm.windowing"><code>WindowManager</code></a>.</div> |
| </section> |
| <section class="summary"> |
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| <!-- ========== METHOD 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-tab5"><code>default void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#onActivation(java.util.function.Supplier,java.util.function.Supplier,java.util.function.Supplier,java.lang.Long)" class="member-name-link">onActivation</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> eventsIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> newEventsIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> expiredIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a> referenceTime)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Called on activation of the window due to the <a href="TriggerPolicy.html" title="interface in org.apache.storm.windowing"><code>TriggerPolicy</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#onActivation(java.util.List,java.util.List,java.util.List,java.lang.Long)" class="member-name-link">onActivation</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> events, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> newEvents, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> expired, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a> referenceTime)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Called on activation of the window due to the <a href="TriggerPolicy.html" title="interface in org.apache.storm.windowing"><code>TriggerPolicy</code></a>.</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="#onExpiry(java.util.List)" class="member-name-link">onExpiry</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> events)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Called on expiry of events from the window due to <a href="EvictionPolicy.html" title="interface in org.apache.storm.windowing"><code>EvictionPolicy</code></a>.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </section> |
| </li> |
| </ul> |
| </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="onExpiry(java.util.List)"> |
| <h3>onExpiry</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">onExpiry</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> events)</span></div> |
| <div class="block">Called on expiry of events from the window due to <a href="EvictionPolicy.html" title="interface in org.apache.storm.windowing"><code>EvictionPolicy</code></a>.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>events</code> - the expired events</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="onActivation(java.util.List,java.util.List,java.util.List,java.lang.Long)"> |
| <h3>onActivation</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type">void</span> <span class="element-name">onActivation</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> events, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> newEvents, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>> expired, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a> referenceTime)</span></div> |
| <div class="block">Called on activation of the window due to the <a href="TriggerPolicy.html" title="interface in org.apache.storm.windowing"><code>TriggerPolicy</code></a>.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>events</code> - the list of current events in the window.</dd> |
| <dd><code>newEvents</code> - the newly added events since last activation.</dd> |
| <dd><code>expired</code> - the expired events since last activation.</dd> |
| <dd><code>referenceTime</code> - the reference (event or processing) time that resulted in activation</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="onActivation(java.util.function.Supplier,java.util.function.Supplier,java.util.function.Supplier,java.lang.Long)"> |
| <h3>onActivation</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type">void</span> <span class="element-name">onActivation</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> eventsIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> newEventsIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html" title="class or interface in java.util.function" class="external-link">Supplier</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="WindowLifecycleListener.html" title="type parameter in WindowLifecycleListener">T</a>>> expiredIt, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a> referenceTime)</span></div> |
| <div class="block">Called on activation of the window due to the <a href="TriggerPolicy.html" title="interface in org.apache.storm.windowing"><code>TriggerPolicy</code></a>. This is typically invoked when the windows are persisted in |
| state and is huge to be loaded entirely in memory.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>eventsIt</code> - a supplier of iterator over the list of current events in the window</dd> |
| <dd><code>newEventsIt</code> - a supplier of iterator over the newly added events since the last ativation</dd> |
| <dd><code>expiredIt</code> - a supplier of iterator over the expired events since the last activation</dd> |
| <dd><code>referenceTime</code> - the reference (event or processing) time that resulted in activation</dd> |
| </dl> |
| </section> |
| </li> |
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