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Oleg Zhurakousky
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<title>8.&nbsp;Configuration Options</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.79.1"><link rel="home" href="multi_spring-cloud-stream.html" title="Spring Cloud Stream Reference Guide"><link rel="up" href="multi__reference_guide.html" title="Part&nbsp;II.&nbsp;Reference Guide"><link rel="prev" href="multi_spring-cloud-stream-overview-binders.html" title="7.&nbsp;Binders"><link rel="next" href="multi_content-type-management.html" title="9.&nbsp;Content Type Negotiation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">8.&nbsp;Configuration Options</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_spring-cloud-stream-overview-binders.html">Prev</a>&nbsp;</td><th width="60%" align="center">Part&nbsp;II.&nbsp;Reference Guide</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_content-type-management.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a name="_configuration_options" href="#_configuration_options"></a>8.&nbsp;Configuration Options</h2></div></div></div><p>Spring Cloud Stream supports general configuration options as well as configuration for bindings and binders.
<title>8.&nbsp;Configuration Options</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.79.1"><link rel="home" href="multi_spring-cloud-stream.html" title="Spring Cloud Stream Reference Guide"><link rel="up" href="multi__preface.html" title="Part&nbsp;I.&nbsp;Preface"><link rel="prev" href="multi_spring-cloud-stream-overview-binders.html" title="7.&nbsp;Binders"><link rel="next" href="multi_content-type-management.html" title="9.&nbsp;Content Type Negotiation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">8.&nbsp;Configuration Options</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_spring-cloud-stream-overview-binders.html">Prev</a>&nbsp;</td><th width="60%" align="center">Part&nbsp;I.&nbsp;Preface</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_content-type-management.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a name="_configuration_options" href="#_configuration_options"></a>8.&nbsp;Configuration Options</h2></div></div></div><p>Spring Cloud Stream supports general configuration options as well as configuration for bindings and binders.
Some binders let additional binding properties support middleware-specific features.</p><p>Configuration options can be provided to Spring Cloud Stream applications through any mechanism supported by Spring Boot.
This includes application arguments, environment variables, and YAML or .properties files.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_binding_service_properties" href="#_binding_service_properties"></a>8.1&nbsp;Binding Service Properties</h2></div></div></div><p>These properties are exposed via <code class="literal">org.springframework.cloud.stream.config.BindingServiceProperties</code></p><div class="variablelist"><dl class="variablelist"><dt><span class="term">spring.cloud.stream.instanceCount</span></dt><dd><p class="simpara">The number of deployed instances of an application.
Must be set for partitioning on the producer side. Must be set on the consumer side when using RabbitMQ and with Kafka if <code class="literal">autoRebalanceEnabled=false</code>.</p><p class="simpara">Default: <code class="literal">1</code>.</p></dd><dt><span class="term">spring.cloud.stream.instanceIndex</span></dt><dd>The instance index of the application: A number from <code class="literal">0</code> to <code class="literal">instanceCount - 1</code>.
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extended.setAutoBindDlq(true);
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}</pre><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td align="left" valign="top"><p>If you need to support dynamic destinations with multiple binder types, use <code class="literal">Object</code> for the generic type and cast the <code class="literal">extended</code> argument as needed.</p></td></tr></table></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi_spring-cloud-stream-overview-binders.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="multi__reference_guide.html">Up</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="multi_content-type-management.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">7.&nbsp;Binders&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-stream.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;9.&nbsp;Content Type Negotiation</td></tr></table></div></body></html>
}</pre><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td align="left" valign="top"><p>If you need to support dynamic destinations with multiple binder types, use <code class="literal">Object</code> for the generic type and cast the <code class="literal">extended</code> argument as needed.</p></td></tr></table></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi_spring-cloud-stream-overview-binders.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="multi__preface.html">Up</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="multi_content-type-management.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">7.&nbsp;Binders&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-stream.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;9.&nbsp;Content Type Negotiation</td></tr></table></div></body></html>