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<title>SharedResource (Qpid ProtonJ2 Parent 1.0.0-M18 API)</title>
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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.qpid.protonj2.resource</a></div>
<h1 title="Class SharedResource" class="title">Class SharedResource&lt;T extends <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;T&gt;&gt;</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.qpid.protonj2.resource.SharedResource&lt;T&gt;</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>Type Parameters:</dt>
<dd><code>T</code> - The resource type that whose references are being tracked.</dd>
</dl>
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code>, <code><a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;T&gt;</code></dd>
</dl>
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../buffer/netty/Netty4ToProtonBufferAdapter.html" title="class in org.apache.qpid.protonj2.buffer.netty">Netty4ToProtonBufferAdapter</a></code>, <code><a href="../buffer/netty/Netty5ToProtonBufferAdapter.html" title="class in org.apache.qpid.protonj2.buffer.netty">Netty5ToProtonBufferAdapter</a></code>, <code><a href="../buffer/impl/ProtonByteArrayBuffer.html" title="class in org.apache.qpid.protonj2.buffer.impl">ProtonByteArrayBuffer</a></code>, <code><a href="../buffer/impl/ProtonCompositeBufferImpl.html" title="class in org.apache.qpid.protonj2.buffer.impl">ProtonCompositeBufferImpl</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">SharedResource&lt;T extends <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;T&gt;&gt;</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
implements <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;T&gt;, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></span></div>
<div class="block">A referenced resource is one in which a number of objects can claim reference
and the resource will not close or free claimed resources until all references
have been released.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">SharedResource</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected final <a href="SharedResource.html" title="type parameter in SharedResource">T</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#acquire()" class="member-name-link">acquire</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#close()" class="member-name-link">close</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Close the resource and free any managed resources it might own.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isClosed()" class="member-name-link">isClosed</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">A <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource"><code>Resource</code></a> is closed either following a call to the <a href="Resource.html#close()"><code>Resource.close()</code></a> method
or by the resource being transfered by way of the <a href="Resource.html#transfer()"><code>Resource.transfer()</code></a> method.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected final boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isShared()" class="member-name-link">isShared</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#releaseResourceOwnership()" class="member-name-link">releaseResourceOwnership</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/RuntimeException.html" title="class or interface in java.lang" class="external-link">RuntimeException</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#resourceIsClosedException()" class="member-name-link">resourceIsClosedException</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="SharedResource.html" title="type parameter in SharedResource">T</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#transfer()" class="member-name-link">transfer</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Transfers ownership of this resource from one owner to another.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract <a href="SharedResource.html" title="type parameter in SharedResource">T</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#transferTheResource()" class="member-name-link">transferTheResource</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>SharedResource</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">SharedResource</span>()</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="acquire()">
<h3>acquire</h3>
<div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type"><a href="SharedResource.html" title="type parameter in SharedResource">T</a></span>&nbsp;<span class="element-name">acquire</span>()</div>
</section>
</li>
<li>
<section class="detail" id="close()">
<h3>close</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">close</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Resource.html#close()">Resource</a></code></span></div>
<div class="block">Close the resource and free any managed resources it might own. Calling close
on a closed resource should not result in any exceptions being thrown.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html#close()" title="class or interface in java.lang" class="external-link">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code></dd>
<dt>Specified by:</dt>
<dd><code><a href="Resource.html#close()">close</a></code>&nbsp;in interface&nbsp;<code><a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a> extends <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a>&gt;&gt;</code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="transfer()">
<h3>transfer</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="SharedResource.html" title="type parameter in SharedResource">T</a></span>&nbsp;<span class="element-name">transfer</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Resource.html#transfer()">Resource</a></code></span></div>
<div class="block">Transfers ownership of this resource from one owner to another.
<p>
Upon transferring a resource the original referenced value is closed and its
contents are migrated to a new view that has the same state as the original
view but it now the property of the caller and who's life-cycle now must be
managed by the caller.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Resource.html#transfer()">transfer</a></code>&nbsp;in interface&nbsp;<code><a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a> extends <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a>&gt;&gt;</code></dd>
<dt>Returns:</dt>
<dd>the a new transfered view of the given resource now owned by the caller.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isClosed()">
<h3>isClosed</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isClosed</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Resource.html#isClosed()">Resource</a></code></span></div>
<div class="block">A <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource"><code>Resource</code></a> is closed either following a call to the <a href="Resource.html#close()"><code>Resource.close()</code></a> method
or by the resource being transfered by way of the <a href="Resource.html#transfer()"><code>Resource.transfer()</code></a> method.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Resource.html#isClosed()">isClosed</a></code>&nbsp;in interface&nbsp;<code><a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a> extends <a href="Resource.html" title="interface in org.apache.qpid.protonj2.resource">Resource</a>&lt;<a href="SharedResource.html" title="type parameter in SharedResource">T</a>&gt;&gt;</code></dd>
<dt>Returns:</dt>
<dd>true if this resource is closed, either by being transfered or by direct <a href="Resource.html#close()"><code>Resource.close()</code></a>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isShared()">
<h3>isShared</h3>
<div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isShared</span>()</div>
</section>
</li>
<li>
<section class="detail" id="releaseResourceOwnership()">
<h3>releaseResourceOwnership</h3>
<div class="member-signature"><span class="modifiers">protected abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">releaseResourceOwnership</span>()</div>
</section>
</li>
<li>
<section class="detail" id="transferTheResource()">
<h3>transferTheResource</h3>
<div class="member-signature"><span class="modifiers">protected abstract</span>&nbsp;<span class="return-type"><a href="SharedResource.html" title="type parameter in SharedResource">T</a></span>&nbsp;<span class="element-name">transferTheResource</span>()</div>
</section>
</li>
<li>
<section class="detail" id="resourceIsClosedException()">
<h3>resourceIsClosedException</h3>
<div class="member-signature"><span class="modifiers">protected abstract</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/RuntimeException.html" title="class or interface in java.lang" class="external-link">RuntimeException</a></span>&nbsp;<span class="element-name">resourceIsClosedException</span>()</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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