| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Query (kafka 3.5.0 API)</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <meta name="description" content="declaration: package: org.apache.kafka.streams.query, interface: Query"> |
| <meta name="generator" content="javadoc/ClassWriterImpl"> |
| <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> |
| <link rel="stylesheet" type="text/css" href="../../../../../script-dir/jquery-ui.min.css" title="Style"> |
| <link rel="stylesheet" type="text/css" href="../../../../../jquery-ui.overrides.css" title="Style"> |
| <script type="text/javascript" src="../../../../../script.js"></script> |
| <script type="text/javascript" src="../../../../../script-dir/jquery-3.5.1.min.js"></script> |
| <script type="text/javascript" src="../../../../../script-dir/jquery-ui.min.js"></script> |
| </head> |
| <body class="class-declaration-page"> |
| <script type="text/javascript">var pathtoroot = "../../../../../"; |
| loadScripts(document, 'script');</script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <div class="flex-box"> |
| <header role="banner" class="flex-header"> |
| <nav role="navigation"> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="top-nav" id="navbar-top"> |
| <div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div> |
| <ul id="navbar-top-firstrow" class="nav-list" title="Navigation"> |
| <li><a href="../../../../../index.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="nav-bar-cell1-rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html#class">Help</a></li> |
| </ul> |
| </div> |
| <div class="sub-nav"> |
| <div> |
| <ul class="sub-nav-list"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li>Method</li> |
| </ul> |
| <ul class="sub-nav-list"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li>Method</li> |
| </ul> |
| </div> |
| <div class="nav-list-search"><label for="search-input">SEARCH:</label> |
| <input type="text" id="search-input" value="search" disabled="disabled"> |
| <input type="reset" id="reset-button" value="reset" disabled="disabled"> |
| </div> |
| </div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <span class="skip-nav" id="skip-navbar-top"></span></nav> |
| </header> |
| <div class="flex-content"> |
| <main role="main"> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.kafka.streams.query</a></div> |
| <h1 title="Interface Query" class="title">Interface Query<R></h1> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>R</code> - The type of the result returned by this query.</dd> |
| </dl> |
| <dl class="notes"> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="KeyQuery.html" title="class in org.apache.kafka.streams.query">KeyQuery</a></code>, <code><a href="RangeQuery.html" title="class in org.apache.kafka.streams.query">RangeQuery</a></code>, <code><a href="WindowKeyQuery.html" title="class in org.apache.kafka.streams.query">WindowKeyQuery</a></code>, <code><a href="WindowRangeQuery.html" title="class in org.apache.kafka.streams.query">WindowRangeQuery</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">Query<R></span></div> |
| <div class="block">Marker interface that all interactive queries must implement (see <a href="../KafkaStreams.html#query(org.apache.kafka.streams.query.StateQueryRequest)"><code>KafkaStreams.query(StateQueryRequest)</code></a>). |
| <p> |
| You can find all available queries by searching for classes implementing this interface. |
| <p> |
| Kafka Streams will pass unknown query types straight through into the bytes stores, so callers |
| can add custom queries by implementing this interface and providing custom stores that handle |
| them (via <a href="../state/StoreSupplier.html" title="interface in org.apache.kafka.streams.state"><code>StoreSupplier</code></a>s. |
| <p> |
| See KIP-796 (https://cwiki.apache.org/confluence/x/34xnCw) for more details.</div> |
| </section> |
| <!-- ========= END OF CLASS DATA ========= --> |
| </main> |
| </div> |
| </div> |
| </body> |
| </html> |
