http://git-wip-us.apache.org/repos/asf/kafka-site/blob/af5a933b/0100/javadoc/org/apache/kafka/streams/kstream/KStream.html ---------------------------------------------------------------------- diff --git a/0100/javadoc/org/apache/kafka/streams/kstream/KStream.html b/0100/javadoc/org/apache/kafka/streams/kstream/KStream.html new file mode 100644 index 0000000..36011eb --- /dev/null +++ b/0100/javadoc/org/apache/kafka/streams/kstream/KStream.html @@ -0,0 +1,1198 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<!-- NewPage --> +<html lang="en"> +<head> +<!-- Generated by javadoc (version 1.7.0_80) on Thu May 19 00:52:04 BST 2016 --> +<title>KStream (kafka 0.10.0.0 API)</title> +<meta name="date" content="2016-05-19"> +<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> +</head> +<body> +<script type="text/javascript"><!-- + if (location.href.indexOf('is-external=true') == -1) { + parent.document.title="KStream (kafka 0.10.0.0 API)"; + } +//--> +</script> +<noscript> +<div>JavaScript is disabled on your browser.</div> +</noscript> +<!-- ========= START OF TOP NAVBAR ======= --> +<div class="topNav"><a name="navbar_top"> +<!-- --> +</a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow"> +<!-- --> +</a> +<ul class="navList" title="Navigation"> +<li><a href="../../../../../overview-summary.html">Overview</a></li> +<li><a href="package-summary.html">Package</a></li> +<li class="navBarCell1Rev">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">Help</a></li> +</ul> +</div> +<div class="subNav"> +<ul class="navList"> +<li><a href="../../../../../org/apache/kafka/streams/kstream/KGroupedTable.html" title="interface in org.apache.kafka.streams.kstream"><span class="strong">Prev Class</span></a></li> +<li><a href="../../../../../org/apache/kafka/streams/kstream/KStreamBuilder.html" title="class in org.apache.kafka.streams.kstream"><span class="strong">Next Class</span></a></li> +</ul> +<ul class="navList"> +<li><a href="../../../../../index.html?org/apache/kafka/streams/kstream/KStream.html" target="_top">Frames</a></li> +<li><a href="KStream.html" target="_top">No Frames</a></li> +</ul> +<ul class="navList" id="allclasses_navbar_top"> +<li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> +</ul> +<div> +<script type="text/javascript"><!-- + allClassesLink = document.getElementById("allclasses_navbar_top"); + if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li>Nested | </li> +<li>Field | </li> +<li>Constr | </li> +<li><a href="#method_summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li>Field | </li> +<li>Constr | </li> +<li><a href="#method_detail">Method</a></li> +</ul> +</div> +<a name="skip-navbar_top"> +<!-- --> +</a></div> +<!-- ========= END OF TOP NAVBAR ========= --> +<!-- ======== START OF CLASS DATA ======== --> +<div class="header"> +<div class="subTitle">org.apache.kafka.streams.kstream</div> +<h2 title="Interface KStream" class="title">Interface KStream<K,V></h2> +</div> +<div class="contentContainer"> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K</code> - Type of keys</dd><dd><code>V</code> - Type of values</dd></dl> +<hr> +<br> +<pre>@InterfaceStability.Unstable +public interface <span class="strong">KStream<K,V></span></pre> +<div class="block"><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> is an abstraction of a <i>record stream</i> of key-value pairs. + <p> + A <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> is either defined from one or multiple Kafka topics that are consumed message by message or + the result of a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> transformation. A <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> can also be converted into a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>. + <p> + A <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> can be transformed record by record, joined with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> or <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>, or + can be aggregated into a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd></dl> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- ========== METHOD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_summary"> +<!-- --> +</a> +<h3>Method Summary</h3> +<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> +<caption><span>Methods</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colFirst" scope="col">Modifier and Type</th> +<th class="colLast" scope="col">Method and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, + <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20java.lang.String)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, + <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in 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KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, + <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> +<div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,T></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20org.apache.kafka.streams.kstream.Windows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, + <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, + <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde)</code> +<div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>[]</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#branch(org.apache.kafka.streams.kstream.Predicate...)">branch</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>... predicates)</code> +<div class="block">Creates an array of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from this stream by branching the elements in the original stream based on the supplied predicates.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true"; title="class or interface in java.lang">Long</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(org.apache.kafka.common.serialization.Serde,%20java.lang.String)">countByKey</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true"; title="class or interface in java.lang">Long</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(java.lang.String)">countByKey</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true"; title="class or interface in java.lang">Long</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(org.apache.kafka.streams.kstream.Windows)">countByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> +<div class="block">Count number of records of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a 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in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#filter(org.apache.kafka.streams.kstream.Predicate)">filter</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a 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href="../../../../../org/apache/kafka/streams/kstream/KStream.html#filterNot(org.apache.kafka.streams.kstream.Predicate)">filterNot</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</code> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists all elements of this stream which do not satisfy a predicate.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#flatMap(org.apache.kafka.streams.kstream.KeyValueMapper)">flatMap</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true"; title="class or interface in java.lang">Iterable</a><<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>>> mapper)</code> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into zero or more elements in the new stream.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#flatMapValues(org.apache.kafka.streams.kstream.ValueMapper)">flatMapValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true"; title="class or interface in java.lang">Iterable</a><V1>> processor)</code> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into zero or more values with the same key in the new stream.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#foreach(org.apache.kafka.streams.kstream.ForeachAction)">foreach</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ForeachAction.html" title="interface in org.apache.kafka.streams.kstream">ForeachAction</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> action)</code> +<div class="block">Perform an action on each element of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#join(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">join</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> +<div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#join(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">join</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> +<div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> +<div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> +<div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1,V2> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V2></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KTable,%20org.apache.kafka.streams.kstream.ValueJoiner)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> table, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,V2> joiner)</code> +<div class="block">Combine values of this stream with <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>'s elements of the same key using non-windowed Left Join.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#map(org.apache.kafka.streams.kstream.KeyValueMapper)">map</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> mapper)</code> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into a different element in the new stream.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#mapValues(org.apache.kafka.streams.kstream.ValueMapper)">mapValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1> mapper)</code> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into a new value in the new stream.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#outerJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">outerJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> +<div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#outerJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">outerJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, + <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, + <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> +<div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#print()">print</a></strong>()</code> +<div class="block">Print the elements of this stream to System.out + + Implementors will need to override toString for keys and values that are not of + type String, Integer etc to get meaningful information.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#print(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">print</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</code> +<div class="block">Print the elements of this stream to System.out</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#process(org.apache.kafka.streams.processor.ProcessorSupplier,%20java.lang.String...)">process</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/ProcessorSupplier.html" title="interface in org.apache.kafka.streams.processor">ProcessorSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> processorSupplier, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a>... stateStoreNames)</code> +<div class="block">Process all elements in this stream, one element at a time, by applying a <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="interface in org.apache.kafka.streams.processor"><code>Processor</code></a>.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20java.lang.String)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> name)</code> +<div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> with default serializers and deserializers.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.streams.kstream.Windows)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, + <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> +<div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> + with default serializers and deserializers.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.streams.kstream.Windows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, + <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde)</code> +<div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><K1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#selectKey(org.apache.kafka.streams.kstream.KeyValueMapper)">selectKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,K1> mapper)</code> +<div class="block">Create a new key from the current key and value.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, + <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic + using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic + using default serializers and deserializers and a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(java.lang.String)">through</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic + using default serializers and deserializers and producer's <code>DefaultPartitioner</code>.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, + <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic using default serializers specified in the config and a customizable + <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(java.lang.String)">to</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> topic)</code> +<div class="block">Materialize this stream to a topic using default serializers specified in the config + and producer's <code>DefaultPartitioner</code>.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#transform(org.apache.kafka.streams.kstream.TransformerSupplier,%20java.lang.String...)">transform</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/TransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">TransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> transformerSupplier, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a>... stateStoreNames)</code> +<div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/Transformer.html" title="interface in org.apache.kafka.streams.kstream"><code>Transformer</code></a> to all elements in this stream, one element at a time.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#transformValues(org.apache.kafka.streams.kstream.ValueTransformerSupplier,%20java.lang.String...)">transformValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">ValueTransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,R> valueTransformerSupplier, + <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a>... stateStoreNames)</code> +<div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformer.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueTransformer</code></a> to all values in this stream, one element at a time.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#writeAsText(java.lang.String)">writeAsText</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> filePath)</code> +<div class="block">Write the elements of this stream to a file at the given path.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#writeAsText(java.lang.String,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">writeAsText</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> filePath, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</code> </td> +</tr> +</table> +</li> +</ul> +</li> +</ul> +</div> +<div class="details"> +<ul class="blockList"> +<li class="blockList"> +<!-- ============ METHOD DETAIL ========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_detail"> +<!-- --> +</a> +<h3>Method Detail</h3> +<a name="filter(org.apache.kafka.streams.kstream.Predicate)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>filter</h4> +<pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> filter(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</pre> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists of all elements of this stream which satisfy a predicate.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>predicate</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream"><code>Predicate</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains only those records that satisfy the given predicate</dd></dl> +</li> +</ul> +<a name="filterNot(org.apache.kafka.streams.kstream.Predicate)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>filterNot</h4> +<pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> filterNot(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</pre> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists all elements of this stream which do not satisfy a predicate.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>predicate</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream"><code>Predicate</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains only those records that do not satisfy the given predicate</dd></dl> +</li> +</ul> +<a name="selectKey(org.apache.kafka.streams.kstream.KeyValueMapper)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>selectKey</h4> +<pre><K1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> selectKey(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,K1> mapper)</pre> +<div class="block">Create a new key from the current key and value.</div> +<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the new key type on the stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with different key type and same value type</dd></dl> +</li> +</ul> +<a name="map(org.apache.kafka.streams.kstream.KeyValueMapper)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>map</h4> +<pre><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1> map(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> mapper)</pre> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into a different element in the new stream.</div> +<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the key type of the new stream</dd><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with new key and value type</dd></dl> +</li> +</ul> +<a name="mapValues(org.apache.kafka.streams.kstream.ValueMapper)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>mapValues</h4> +<pre><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> mapValues(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1> mapper)</pre> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into a new value in the new stream.</div> +<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueMapper</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with unmodified keys and new values of different type</dd></dl> +</li> +</ul> +<a name="print()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>print</h4> +<pre>void print()</pre> +<div class="block">Print the elements of this stream to System.out + + Implementors will need to override toString for keys and values that are not of + type String, Integer etc to get meaningful information.</div> +</li> +</ul> +<a name="print(org.apache.kafka.common.serialization.Serde, 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to send key-value pairs, + if not specified the default serde defined in the configs will be used + + Implementors will need to override toString for keys and values that are not of + type String, Integer etc to get meaningful information.</dd></dl> +</li> +</ul> +<a name="writeAsText(java.lang.String)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>writeAsText</h4> +<pre>void writeAsText(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> filePath)</pre> +<div class="block">Write the elements of this stream to a file at the given path.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filePath</code> - name of file to write to + + Implementors will need to override toString for keys and values that are not of + type String, Integer etc to get meaningful information.</dd></dl> +</li> +</ul> +<a name="writeAsText(java.lang.String, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>writeAsText</h4> +<pre>void writeAsText(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true"; title="class or interface in java.lang">String</a> filePath, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, + <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</pre> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filePath</code> - name of file to write to</dd><dd><code>keySerde</code> - key serde used to send key-value pairs, + if not specified the default serde defined in the configs will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, + if not specified the default serde defined in the configs will be used + + Implementors will need to override toString for keys and values that are not of + type String, Integer etc to get meaningful information.</dd></dl> +</li> +</ul> +<a name="flatMap(org.apache.kafka.streams.kstream.KeyValueMapper)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>flatMap</h4> +<pre><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1> flatMap(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true"; title="class or interface in java.lang">Iterable</a><<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>>> mapper)</pre> +<div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into zero or more elements in the new stream.</div> +<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the key type of the new stream</dd><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains more or less records with new key and value type</dd></dl> +</li> +</ul> +<a name="flatMapValues(org.apache.kafka.streams.kstream.ValueMapper)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>flatMapValues</h4> +<pre><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> flatMapValues(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in 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org.apache.kafka.streams.kstream"><code>ValueMapper</code></a></dd> +<dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains more or less records with unmodified keys and new values of different type</dd></dl> +</li> +</ul> +<a name="branch(org.apache.kafka.streams.kstream.Predicate...)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>branch</h4> +<pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>[] branch(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in 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