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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.qpid.protonj2.engine</a></div>
<h2 title="Interface Attachments" class="title">Interface Attachments</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><code><a href="impl/ProtonAttachments.html" title="class in org.apache.qpid.protonj2.engine.impl">ProtonAttachments</a></code></dd>
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<pre>public interface <span class="typeNameLabel">Attachments</span></pre>
<div class="block">Attachments API used to associate specific data with AMQP Resources</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code><a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine">Attachments</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clear()">clear</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#containsKey(java.lang.String)">containsKey</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key)</code></th>
<td class="colLast">
<div class="block">Checks if the given key has a value mapped to it in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</div>
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<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#get(java.lang.String)">get</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key)</code></th>
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<div class="block">Gets the user attached value that is associated with the given key, or null
if no data is mapped to the key.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#get(java.lang.String,java.lang.Class)">get</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;typeClass)</code></th>
<td class="colLast">
<div class="block">Gets the user set <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> value that is associated with the given key, or null
if no data is mapped to the key.</div>
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<td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine">Attachments</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#set(java.lang.String,T)">set</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key,
T&nbsp;value)</code></th>
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<div class="block">Maps a given object to the given key in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</div>
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<h4>get</h4>
<pre class="methodSignature">&lt;T&gt;&nbsp;T&nbsp;get&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key)</pre>
<div class="block">Gets the user attached value that is associated with the given key, or null
if no data is mapped to the key.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - The type to cast the attached mapped value to if one is set.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key to use to lookup the mapped data.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the object associated with the given key in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</dd>
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<h4>get</h4>
<pre class="methodSignature">&lt;T&gt;&nbsp;T&nbsp;get&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;typeClass)</pre>
<div class="block">Gets the user set <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> value that is associated with the given key, or null
if no data is mapped to the key.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - The type to cast the attached mapped value to if one is set.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key to use to lookup the mapped data.</dd>
<dd><code>typeClass</code> - The Class that will be used when casting the returned mapped object.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the object associated with the given key in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</dd>
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<h4>set</h4>
<pre class="methodSignature">&lt;T&gt;&nbsp;<a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine">Attachments</a>&nbsp;set&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key,
T&nbsp;value)</pre>
<div class="block">Maps a given object to the given key in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</div>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - The type of the value being set</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key to assign the value to</dd>
<dd><code>value</code> - The value to map to the given key.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</dd>
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<h4>containsKey</h4>
<pre class="methodSignature">boolean&nbsp;containsKey&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;key)</pre>
<div class="block">Checks if the given key has a value mapped to it in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key to search for a mapping to in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if there is a value mapped to the given key in this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance.</dd>
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<h4>clear</h4>
<pre class="methodSignature"><a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine">Attachments</a>&nbsp;clear()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this <a href="Attachments.html" title="interface in org.apache.qpid.protonj2.engine"><code>Attachments</code></a> instance with all mapped values and the linked resource cleared.</dd>
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