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From ij...@apache.org
Subject [04/51] [partial] kafka-site git commit: Update javadoc for 0.10 to include connect and streams
Date Thu, 19 May 2016 00:01:54 GMT
http://git-wip-us.apache.org/repos/asf/kafka-site/blob/af5a933b/0100/javadoc/org/apache/kafka/streams/processor/ConsumerRecordTimestampExtractor.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<div class="subTitle">org.apache.kafka.streams.processor</div>
+<h2 title="Class ConsumerRecordTimestampExtractor" class="title">Class ConsumerRecordTimestampExtractor</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.kafka.streams.processor.ConsumerRecordTimestampExtractor</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Implemented Interfaces:</dt>
+<dd><a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html" title="interface in org.apache.kafka.streams.processor">TimestampExtractor</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public class <span class="strong">ConsumerRecordTimestampExtractor</span>
+extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
+implements <a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html" title="interface in org.apache.kafka.streams.processor">TimestampExtractor</a></pre>
+<div class="block">Retrieves built-in timestamps from Kafka messages (introduced in KIP-32: Add timestamps to Kafka message).
+
+ Here, "built-in" refers to the fact that compatible Kafka producer clients automatically and
+ transparently embed such timestamps into messages they sent to Kafka, which can then be retrieved
+ via this timestamp extractor.
+
+ If <i>CreateTime</i> is used to define the built-in timestamps, using this extractor effectively provide
+ <i>event-time</i> semantics. If <i>LogAppendTime</i> is used to define the built-in timestamps, using
+ this extractor effectively provides <i>ingestion-time</i> semantics.
+
+ If you need <i>processing-time</i> semantics, use <a href="../../../../../org/apache/kafka/streams/processor/WallclockTimestampExtractor.html" title="class in org.apache.kafka.streams.processor"><code>WallclockTimestampExtractor</code></a>.</div>
+</li>
+</ul>
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+<h3>Constructor Summary</h3>
+<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ConsumerRecordTimestampExtractor.html#ConsumerRecordTimestampExtractor()">ConsumerRecordTimestampExtractor</a></strong>()</code>&nbsp;</td>
+</tr>
+</table>
+</li>
+</ul>
+<!-- ========== 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">&nbsp;</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>long</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ConsumerRecordTimestampExtractor.html#extract(org.apache.kafka.clients.consumer.ConsumerRecord)">extract</a></strong>(<a href="../../../../../org/apache/kafka/clients/consumer/ConsumerRecord.html" title="class in org.apache.kafka.clients.consumer">ConsumerRecord</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;record)</code>
+<div class="block">Extracts a timestamp from a record.</div>
+</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods_inherited_from_class_java.lang.Object">
+<!--   -->
+</a>
+<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
+<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang
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+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor_detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="ConsumerRecordTimestampExtractor()">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>ConsumerRecordTimestampExtractor</h4>
+<pre>public&nbsp;ConsumerRecordTimestampExtractor()</pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method_detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a name="extract(org.apache.kafka.clients.consumer.ConsumerRecord)">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>extract</h4>
+<pre>public&nbsp;long&nbsp;extract(<a href="../../../../../org/apache/kafka/clients/consumer/ConsumerRecord.html" title="class in org.apache.kafka.clients.consumer">ConsumerRecord</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;record)</pre>
+<div class="block"><strong>Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html#extract(org.apache.kafka.clients.consumer.ConsumerRecord)">TimestampExtractor</a></code></strong></div>
+<div class="block">Extracts a timestamp from a record.
+ <p>
+ Typically, the timestamp represents the milliseconds since midnight, January 1, 1970 UTC.</div>
+<dl>
+<dt><strong>Specified by:</strong></dt>
+<dd><code><a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html#extract(org.apache.kafka.clients.consumer.ConsumerRecord)">extract</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html" title="interface in org.apache.kafka.streams.processor">TimestampExtractor</a></code></dd>
+<dt><span class="strong">Parameters:</span></dt><dd><code>record</code> - a data record</dd>
+<dt><span class="strong">Returns:</span></dt><dd>the timestamp of the record</dd></dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
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http://git-wip-us.apache.org/repos/asf/kafka-site/blob/af5a933b/0100/javadoc/org/apache/kafka/streams/processor/DefaultPartitionGrouper.html
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diff --git a/0100/javadoc/org/apache/kafka/streams/processor/DefaultPartitionGrouper.html b/0100/javadoc/org/apache/kafka/streams/processor/DefaultPartitionGrouper.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<!-- Generated by javadoc (version 1.7.0_80) on Thu May 19 00:52:04 BST 2016 -->
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+<div class="subTitle">org.apache.kafka.streams.processor</div>
+<h2 title="Class DefaultPartitionGrouper" class="title">Class DefaultPartitionGrouper</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.kafka.streams.processor.DefaultPartitionGrouper</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Implemented Interfaces:</dt>
+<dd><a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html" title="interface in org.apache.kafka.streams.processor">PartitionGrouper</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public class <span class="strong">DefaultPartitionGrouper</span>
+extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
+implements <a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html" title="interface in org.apache.kafka.streams.processor">PartitionGrouper</a></pre>
+<div class="block">Default implementation of the <a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html" title="interface in org.apache.kafka.streams.processor"><code>PartitionGrouper</code></a> interface that groups partitions by the partition id.
+
+ Join operations requires that topics of the joining entities are copartitoned, i.e., being partitioned by the same key and having the same
+ number of partitions. Copartitioning is ensured by having the same number of partitions on
+ joined topics, and by using the serialization and Producer's default partitioner.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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+<h3>Constructor Summary</h3>
+<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/DefaultPartitionGrouper.html#DefaultPartitionGrouper()">DefaultPartitionGrouper</a></strong>()</code>&nbsp;</td>
+</tr>
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+<!-- ========== METHOD SUMMARY =========== -->
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+<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">&nbsp;</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>protected int</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/DefaultPartitionGrouper.html#maxNumPartitions(org.apache.kafka.common.Cluster,%20java.util.Set)">maxNumPartitions</a></strong>(<a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata,
+                <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&nbsp;topics)</code>&nbsp;</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../org/apache/kafka/common/TopicPartition.html" title="class in org.apache.kafka.common">TopicPartition</a>&gt;&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/DefaultPartitionGrouper.html#partitionGroups(java.util.Map,%20org.apache.kafka.common.Cluster)">partitionGroups</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&gt;&nbsp;topicGroups,
+               <a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata)</code>
+<div class="block">Generate tasks with the assigned topic partitions.</div>
+</td>
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+<li class="blockList"><a name="constructor_detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="DefaultPartitionGrouper()">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>DefaultPartitionGrouper</h4>
+<pre>public&nbsp;DefaultPartitionGrouper()</pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method_detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a name="partitionGroups(java.util.Map, org.apache.kafka.common.Cluster)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>partitionGroups</h4>
+<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../org/apache/kafka/common/TopicPartition.html" title="class in org.apache.kafka.common">TopicPartition</a>&gt;&gt;&nbsp;partitionGroups(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set
 </a>&lt;<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>&gt;&gt;&nbsp;topicGroups,
+                                              <a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata)</pre>
+<div class="block">Generate tasks with the assigned topic partitions.</div>
+<dl>
+<dt><strong>Specified by:</strong></dt>
+<dd><code><a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html#partitionGroups(java.util.Map,%20org.apache.kafka.common.Cluster)">partitionGroups</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html" title="interface in org.apache.kafka.streams.processor">PartitionGrouper</a></code></dd>
+<dt><span class="strong">Parameters:</span></dt><dd><code>topicGroups</code> - group of topics that need to be joined together</dd><dd><code>metadata</code> - metadata of the consuming cluster</dd>
+<dt><span class="strong">Returns:</span></dt><dd>The map from generated task ids to the assigned partitions</dd></dl>
+</li>
+</ul>
+<a name="maxNumPartitions(org.apache.kafka.common.Cluster, java.util.Set)">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>maxNumPartitions</h4>
+<pre>protected&nbsp;int&nbsp;maxNumPartitions(<a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata,
+                   <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&nbsp;topics)</pre>
+<dl><dt><span class="strong">Throws:</span></dt>
+<dd><code><a href="../../../../../org/apache/kafka/streams/errors/StreamsException.html" title="class in org.apache.kafka.streams.errors">StreamsException</a></code> - if no metadata can be received for a topic</dd></dl>
+</li>
+</ul>
+</li>
+</ul>
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+<div class="subTitle">org.apache.kafka.streams.processor</div>
+<h2 title="Interface PartitionGrouper" class="title">Interface PartitionGrouper</h2>
+</div>
+<div class="contentContainer">
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Known Implementing Classes:</dt>
+<dd><a href="../../../../../org/apache/kafka/streams/processor/DefaultPartitionGrouper.html" title="class in org.apache.kafka.streams.processor">DefaultPartitionGrouper</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public interface <span class="strong">PartitionGrouper</span></pre>
+<div class="block">A partition grouper that generates partition groups given the list of topic-partitions.
+
+ This grouper also acts as the stream task creation function along with partition distribution
+ such that each generated partition group is assigned with a distinct <a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor"><code>TaskId</code></a>;
+ the created task ids will then be assigned to Kafka Streams instances that host the stream
+ processing application.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========== METHOD SUMMARY =========== -->
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+<!--   -->
+</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">&nbsp;</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><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../org/apache/kafka/common/TopicPartition.html" title="class in org.apache.kafka.common">TopicPartition</a>&gt;&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/PartitionGrouper.html#partitionGroups(java.util.Map,%20org.apache.kafka.common.Cluster)">partitionGroups</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&gt;&nbsp;topicGroups,
+               <a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata)</code>
+<div class="block">Returns a map of task ids to groups of partitions.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
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+<!-- ============ METHOD DETAIL ========== -->
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+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>partitionGroups</h4>
+<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../org/apache/kafka/common/TopicPartition.html" title="class in org.apache.kafka.common">TopicPartition</a>&gt;&gt;&nbsp;partitionGroups(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a h
 ref="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;&nbsp;topicGroups,
+                                              <a href="../../../../../org/apache/kafka/common/Cluster.html" title="class in org.apache.kafka.common">Cluster</a>&nbsp;metadata)</pre>
+<div class="block">Returns a map of task ids to groups of partitions. A partition group forms a task, thus, partitions that are
+ expected to be processed together must be in the same group. DefaultPartitionGrouper implements this
+ interface. See <a href="../../../../../org/apache/kafka/streams/processor/DefaultPartitionGrouper.html" title="class in org.apache.kafka.streams.processor"><code>DefaultPartitionGrouper</code></a> for more information.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>topicGroups</code> - The map from the <a href="../../../../../org/apache/kafka/streams/processor/TopologyBuilder.html#topicGroups(java.lang.String)"><code>TopologyBuilder.topicGroups(String)</code></a> topic group} id to topics</dd><dd><code>metadata</code> - Metadata of the consuming cluster</dd>
+<dt><span class="strong">Returns:</span></dt><dd>a map of task ids to groups of partitions</dd></dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
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+<div class="subTitle">org.apache.kafka.streams.processor</div>
+<h2 title="Interface Processor" class="title">Interface Processor&lt;K,V&gt;</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> - the type of keys</dd><dd><code>V</code> - the type of values</dd></dl>
+<dl>
+<dt>All Known Implementing Classes:</dt>
+<dd><a href="../../../../../org/apache/kafka/streams/processor/AbstractProcessor.html" title="class in org.apache.kafka.streams.processor">AbstractProcessor</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public interface <span class="strong">Processor&lt;K,V&gt;</span></pre>
+<div class="block">A processor of key-value pair records.</div>
+</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">&nbsp;</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>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/Processor.html#close()">close</a></strong>()</code>
+<div class="block">Close this processor and clean up any resources.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/Processor.html#init(org.apache.kafka.streams.processor.ProcessorContext)">init</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html" title="interface in org.apache.kafka.streams.processor">ProcessorContext</a>&nbsp;context)</code>
+<div class="block">Initialize this processor with the given context.</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/Processor.html#process(K,%20V)">process</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="type parameter in Processor">K</a>&nbsp;key,
+       <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="type parameter in Processor">V</a>&nbsp;value)</code>
+<div class="block">Process the record with the given key and value.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/Processor.html#punctuate(long)">punctuate</a></strong>(long&nbsp;timestamp)</code>
+<div class="block">Perform any periodic operations, if this processor <a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#schedule(long)"><code>schedule itself</code></a> with the context
+ during <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#init(org.apache.kafka.streams.processor.ProcessorContext)"><code>initialization</code></a>.</div>
+</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="init(org.apache.kafka.streams.processor.ProcessorContext)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>init</h4>
+<pre>void&nbsp;init(<a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html" title="interface in org.apache.kafka.streams.processor">ProcessorContext</a>&nbsp;context)</pre>
+<div class="block">Initialize this processor with the given context. The framework ensures this is called once per processor when the topology
+ that contains it is initialized.
+ <p>
+ If this processor is to be <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#punctuate(long)"><code>called periodically</code></a> by the framework, then this method should
+ <a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#schedule(long)"><code>schedule itself</code></a> with the provided context.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>context</code> - the context; may not be null</dd></dl>
+</li>
+</ul>
+<a name="process(java.lang.Object,java.lang.Object)">
+<!--   -->
+</a><a name="process(K, V)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>process</h4>
+<pre>void&nbsp;process(<a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="type parameter in Processor">K</a>&nbsp;key,
+           <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="type parameter in Processor">V</a>&nbsp;value)</pre>
+<div class="block">Process the record with the given key and value.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the key for the record</dd><dd><code>value</code> - the value for the record</dd></dl>
+</li>
+</ul>
+<a name="punctuate(long)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>punctuate</h4>
+<pre>void&nbsp;punctuate(long&nbsp;timestamp)</pre>
+<div class="block">Perform any periodic operations, if this processor <a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#schedule(long)"><code>schedule itself</code></a> with the context
+ during <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#init(org.apache.kafka.streams.processor.ProcessorContext)"><code>initialization</code></a>.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>timestamp</code> - the stream time when this method is being called</dd></dl>
+</li>
+</ul>
+<a name="close()">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>close</h4>
+<pre>void&nbsp;close()</pre>
+<div class="block">Close this processor and clean up any resources. Be aware that <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#close()"><code>close()</code></a> is called after an internal cleanup.
+ Thus, it is not possible to write anything to Kafka as underlying clients are already closed.</div>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
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+<div class="subTitle">org.apache.kafka.streams.processor</div>
+<h2 title="Interface ProcessorContext" class="title">Interface ProcessorContext</h2>
+</div>
+<div class="contentContainer">
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<hr>
+<br>
+<pre>@InterfaceStability.Unstable
+public interface <span class="strong">ProcessorContext</span></pre>
+<div class="block">Processor context interface.</div>
+</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">&nbsp;</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><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></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#applicationId()">applicationId</a></strong>()</code>
+<div class="block">Returns the application id</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#commit()">commit</a></strong>()</code>
+<div class="block">Requests a commit</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>&lt;K,V&gt;&nbsp;void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#forward(K,%20V)">forward</a></strong>(K&nbsp;key,
+       V&nbsp;value)</code>
+<div class="block">Forwards a key/value pair to the downstream processors</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>&lt;K,V&gt;&nbsp;void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#forward(K,%20V,%20int)">forward</a></strong>(K&nbsp;key,
+       V&nbsp;value,
+       int&nbsp;childIndex)</code>
+<div class="block">Forwards a key/value pair to one of the downstream processors designated by childIndex</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>&lt;K,V&gt;&nbsp;void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#forward(K,%20V,%20java.lang.String)">forward</a></strong>(K&nbsp;key,
+       V&nbsp;value,
+       <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>&nbsp;childName)</code>
+<div class="block">Forwards a key/value pair to one of the downstream processors designated by the downstream processor name</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/processor/StateStore.html" title="interface in org.apache.kafka.streams.processor">StateStore</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#getStateStore(java.lang.String)">getStateStore</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>&nbsp;name)</code>
+<div class="block">Get the state store given the store name.</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code><a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a>&lt;?&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#keySerde()">keySerde</a></strong>()</code>
+<div class="block">Returns the default key serde</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/StreamsMetrics.html" title="interface in org.apache.kafka.streams">StreamsMetrics</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#metrics()">metrics</a></strong>()</code>
+<div class="block">Returns Metrics instance</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>long</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#offset()">offset</a></strong>()</code>
+<div class="block">Returns the offset of the current input record; could be -1 if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>int</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#partition()">partition</a></strong>()</code>
+<div class="block">Returns the partition id of the current input record; could be -1 if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#register(org.apache.kafka.streams.processor.StateStore,%20boolean,%20org.apache.kafka.streams.processor.StateRestoreCallback)">register</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/StateStore.html" title="interface in org.apache.kafka.streams.processor">StateStore</a>&nbsp;store,
+        boolean&nbsp;loggingEnabled,
+        <a href="../../../../../org/apache/kafka/streams/processor/StateRestoreCallback.html" title="interface in org.apache.kafka.streams.processor">StateRestoreCallback</a>&nbsp;stateRestoreCallback)</code>
+<div class="block">Registers and possibly restores the specified storage engine.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#schedule(long)">schedule</a></strong>(long&nbsp;interval)</code>
+<div class="block">Schedules a periodic operation for processors.</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#stateDir()">stateDir</a></strong>()</code>
+<div class="block">Returns the state directory for the partition.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#taskId()">taskId</a></strong>()</code>
+<div class="block">Returns the task id</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>long</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#timestamp()">timestamp</a></strong>()</code>
+<div class="block">Returns the current timestamp.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><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></code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#topic()">topic</a></strong>()</code>
+<div class="block">Returns the topic name of the current input record; could be null if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code><a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a>&lt;?&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/processor/ProcessorContext.html#valueSerde()">valueSerde</a></strong>()</code>
+<div class="block">Returns the default value serde</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ============ METHOD DETAIL ========== -->
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+<h4>applicationId</h4>
+<pre><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>&nbsp;applicationId()</pre>
+<div class="block">Returns the application id</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the application id</dd></dl>
+</li>
+</ul>
+<a name="taskId()">
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+<ul class="blockList">
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+<h4>taskId</h4>
+<pre><a href="../../../../../org/apache/kafka/streams/processor/TaskId.html" title="class in org.apache.kafka.streams.processor">TaskId</a>&nbsp;taskId()</pre>
+<div class="block">Returns the task id</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the task id</dd></dl>
+</li>
+</ul>
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+<div class="block">Returns the default key serde</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the key serializer</dd></dl>
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+</ul>
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+<pre><a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a>&lt;?&gt;&nbsp;valueSerde()</pre>
+<div class="block">Returns the default value serde</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the value serializer</dd></dl>
+</li>
+</ul>
+<a name="stateDir()">
+<!--   -->
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+<h4>stateDir</h4>
+<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;stateDir()</pre>
+<div class="block">Returns the state directory for the partition.</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the state directory</dd></dl>
+</li>
+</ul>
+<a name="metrics()">
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+<pre><a href="../../../../../org/apache/kafka/streams/StreamsMetrics.html" title="interface in org.apache.kafka.streams">StreamsMetrics</a>&nbsp;metrics()</pre>
+<div class="block">Returns Metrics instance</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>StreamsMetrics</dd></dl>
+</li>
+</ul>
+<a name="register(org.apache.kafka.streams.processor.StateStore, boolean, org.apache.kafka.streams.processor.StateRestoreCallback)">
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+            boolean&nbsp;loggingEnabled,
+            <a href="../../../../../org/apache/kafka/streams/processor/StateRestoreCallback.html" title="interface in org.apache.kafka.streams.processor">StateRestoreCallback</a>&nbsp;stateRestoreCallback)</pre>
+<div class="block">Registers and possibly restores the specified storage engine.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>store</code> - the storage engine</dd></dl>
+</li>
+</ul>
+<a name="getStateStore(java.lang.String)">
+<!--   -->
+</a>
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+<pre><a href="../../../../../org/apache/kafka/streams/processor/StateStore.html" title="interface in org.apache.kafka.streams.processor">StateStore</a>&nbsp;getStateStore(<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>&nbsp;name)</pre>
+<div class="block">Get the state store given the store name.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - The store name</dd>
+<dt><span class="strong">Returns:</span></dt><dd>The state store instance</dd></dl>
+</li>
+</ul>
+<a name="schedule(long)">
+<!--   -->
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+<h4>schedule</h4>
+<pre>void&nbsp;schedule(long&nbsp;interval)</pre>
+<div class="block">Schedules a periodic operation for processors. A processor may call this method during
+ <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#init(org.apache.kafka.streams.processor.ProcessorContext)"><code>initialization</code></a> to
+ schedule a periodic call called a punctuation to <a href="../../../../../org/apache/kafka/streams/processor/Processor.html#punctuate(long)"><code>Processor.punctuate(long)</code></a>.</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>interval</code> - the time interval between punctuations</dd></dl>
+</li>
+</ul>
+<a name="forward(java.lang.Object,java.lang.Object)">
+<!--   -->
+</a><a name="forward(K, V)">
+<!--   -->
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+<h4>forward</h4>
+<pre>&lt;K,V&gt;&nbsp;void&nbsp;forward(K&nbsp;key,
+                 V&nbsp;value)</pre>
+<div class="block">Forwards a key/value pair to the downstream processors</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - key</dd><dd><code>value</code> - value</dd></dl>
+</li>
+</ul>
+<a name="forward(java.lang.Object,java.lang.Object,int)">
+<!--   -->
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+<h4>forward</h4>
+<pre>&lt;K,V&gt;&nbsp;void&nbsp;forward(K&nbsp;key,
+                 V&nbsp;value,
+                 int&nbsp;childIndex)</pre>
+<div class="block">Forwards a key/value pair to one of the downstream processors designated by childIndex</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - key</dd><dd><code>value</code> - value</dd><dd><code>childIndex</code> - index in list of children of this node</dd></dl>
+</li>
+</ul>
+<a name="forward(java.lang.Object,java.lang.Object,java.lang.String)">
+<!--   -->
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+<h4>forward</h4>
+<pre>&lt;K,V&gt;&nbsp;void&nbsp;forward(K&nbsp;key,
+                 V&nbsp;value,
+                 <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>&nbsp;childName)</pre>
+<div class="block">Forwards a key/value pair to one of the downstream processors designated by the downstream processor name</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - key</dd><dd><code>value</code> - value</dd><dd><code>childName</code> - name of downstream processor</dd></dl>
+</li>
+</ul>
+<a name="commit()">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>commit</h4>
+<pre>void&nbsp;commit()</pre>
+<div class="block">Requests a commit</div>
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+<a name="topic()">
+<!--   -->
+</a>
+<ul class="blockList">
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+<div class="block">Returns the topic name of the current input record; could be null if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the topic name</dd></dl>
+</li>
+</ul>
+<a name="partition()">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>partition</h4>
+<pre>int&nbsp;partition()</pre>
+<div class="block">Returns the partition id of the current input record; could be -1 if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the partition id</dd></dl>
+</li>
+</ul>
+<a name="offset()">
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+</a>
+<ul class="blockList">
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+<h4>offset</h4>
+<pre>long&nbsp;offset()</pre>
+<div class="block">Returns the offset of the current input record; could be -1 if it is not
+ available (for example, if this method is invoked from the punctuate call)</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the offset</dd></dl>
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+<h4>timestamp</h4>
+<pre>long&nbsp;timestamp()</pre>
+<div class="block">Returns the current timestamp.
+
+ If it is triggered while processing a record streamed from the source processor, timestamp is defined as the timestamp of the current input record; the timestamp is extracted from
+ <a href="../../../../../org/apache/kafka/clients/consumer/ConsumerRecord.html" title="class in org.apache.kafka.clients.consumer"><code>ConsumerRecord</code></a> by <a href="../../../../../org/apache/kafka/streams/processor/TimestampExtractor.html" title="interface in org.apache.kafka.streams.processor"><code>TimestampExtractor</code></a>.
+
+ If it is triggered while processing a record generated not from the source processor (for example,
+ if this method is invoked from the punctuate call), timestamp is defined as the current
+ task's stream time, which is defined as the smallest among all its input stream partition timestamps.</div>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the timestamp</dd></dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
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