onnxruntime/docs/api/java/ai/onnxruntime/OrtSession.html
2023-01-19 16:21:07 -08:00

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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">ai.onnxruntime</a></div>
<h2 title="Class OrtSession" class="title">Class OrtSession</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>ai.onnxruntime.OrtSession</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code>java.lang.AutoCloseable</code></dd>
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<pre>public class <span class="typeNameLabel">OrtSession</span>
extends java.lang.Object
implements java.lang.AutoCloseable</pre>
<div class="block">Wraps an ONNX model and allows inference calls.
<p>Allows the inspection of the model's input and output nodes. Produced by an <a href="OrtEnvironment.html" title="class in ai.onnxruntime"><code>OrtEnvironment</code></a>.
<p>Most instance methods throw <code>IllegalStateException</code> if the session is closed and the
methods are called.</div>
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<table class="memberSummary">
<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a></span></code></th>
<td class="colLast">
<div class="block">An <code>AutoCloseable</code> wrapper around a <code>Map</code> containing <a href="OnnxValue.html" title="interface in ai.onnxruntime"><code>OnnxValue</code></a>s.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OrtSession.RunOptions.html" title="class in ai.onnxruntime">OrtSession.RunOptions</a></span></code></th>
<td class="colLast">
<div class="block">Used to control logging and termination of a call to <a href="#run(java.util.Map)"><code>run(java.util.Map&lt;java.lang.String, ? extends ai.onnxruntime.OnnxTensorLike&gt;)</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OrtSession.SessionOptions.html" title="class in ai.onnxruntime">OrtSession.SessionOptions</a></span></code></th>
<td class="colLast">
<div class="block">Represents the options used to construct this session.</div>
</td>
</tr>
</table>
</li>
</ul>
</section>
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<h3>Method Summary</h3>
<table class="memberSummary">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
<td class="colLast">
<div class="block">Closes the session, releasing it's resources.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#endProfiling()">endProfiling</a></span>()</code></th>
<td class="colLast">
<div class="block">Ends the profiling session and returns the output of the profiler.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.util.Map&lt;java.lang.String,&#8203;<a href="NodeInfo.html" title="class in ai.onnxruntime">NodeInfo</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getInputInfo()">getInputInfo</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the info objects for the inputs, including their names and types.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getInputNames()">getInputNames</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the input names.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="OnnxModelMetadata.html" title="class in ai.onnxruntime">OnnxModelMetadata</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMetadata()">getMetadata</a></span>()</code></th>
<td class="colLast">
<div class="block">Gets the metadata for the currently loaded model.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumInputs()">getNumInputs</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the number of inputs this model expects.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumOutputs()">getNumOutputs</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the number of outputs this model expects.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>java.util.Map&lt;java.lang.String,&#8203;<a href="NodeInfo.html" title="class in ai.onnxruntime">NodeInfo</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOutputInfo()">getOutputInfo</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the info objects for the outputs, including their names and types.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOutputNames()">getOutputNames</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the output names.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getProfilingStartTimeInNs()">getProfilingStartTimeInNs</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the timestamp that profiling started in nanoseconds.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#run(java.util.Map)">run</a></span>&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs)</code></th>
<td class="colLast">
<div class="block">Scores an input feed dict, returning the map of all inferred outputs.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#run(java.util.Map,ai.onnxruntime.OrtSession.RunOptions)">run</a></span>&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
<a href="OrtSession.RunOptions.html" title="class in ai.onnxruntime">OrtSession.RunOptions</a>&nbsp;runOptions)</code></th>
<td class="colLast">
<div class="block">Scores an input feed dict, returning the map of all inferred outputs.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#run(java.util.Map,java.util.Set)">run</a></span>&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
java.util.Set&lt;java.lang.String&gt;&nbsp;requestedOutputs)</code></th>
<td class="colLast">
<div class="block">Scores an input feed dict, returning the map of requested inferred outputs.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#run(java.util.Map,java.util.Set,ai.onnxruntime.OrtSession.RunOptions)">run</a></span>&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
java.util.Set&lt;java.lang.String&gt;&nbsp;requestedOutputs,
<a href="OrtSession.RunOptions.html" title="class in ai.onnxruntime">OrtSession.RunOptions</a>&nbsp;runOptions)</code></th>
<td class="colLast">
<div class="block">Scores an input feed dict, returning the map of requested inferred outputs.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
</ul>
</li>
</ul>
</section>
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<h3>Method Detail</h3>
<a id="getNumInputs()">
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<h4>getNumInputs</h4>
<pre class="methodSignature">public&nbsp;long&nbsp;getNumInputs()</pre>
<div class="block">Returns the number of inputs this model expects.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of inputs.</dd>
</dl>
</li>
</ul>
<a id="getNumOutputs()">
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<h4>getNumOutputs</h4>
<pre class="methodSignature">public&nbsp;long&nbsp;getNumOutputs()</pre>
<div class="block">Returns the number of outputs this model expects.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of outputs.</dd>
</dl>
</li>
</ul>
<a id="getInputNames()">
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<h4>getInputNames</h4>
<pre class="methodSignature">public&nbsp;java.util.Set&lt;java.lang.String&gt;&nbsp;getInputNames()</pre>
<div class="block">Returns the input names. The underlying collection is sorted based on the input id number.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The input names.</dd>
</dl>
</li>
</ul>
<a id="getOutputNames()">
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<h4>getOutputNames</h4>
<pre class="methodSignature">public&nbsp;java.util.Set&lt;java.lang.String&gt;&nbsp;getOutputNames()</pre>
<div class="block">Returns the output names. The underlying collection is sorted based on the output id number.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The output names.</dd>
</dl>
</li>
</ul>
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<h4>getInputInfo</h4>
<pre class="methodSignature">public&nbsp;java.util.Map&lt;java.lang.String,&#8203;<a href="NodeInfo.html" title="class in ai.onnxruntime">NodeInfo</a>&gt;&nbsp;getInputInfo()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Returns the info objects for the inputs, including their names and types. The underlying
collection is sorted based on the input id number.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The input information.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code.</dd>
</dl>
</li>
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<h4>getOutputInfo</h4>
<pre class="methodSignature">public&nbsp;java.util.Map&lt;java.lang.String,&#8203;<a href="NodeInfo.html" title="class in ai.onnxruntime">NodeInfo</a>&gt;&nbsp;getOutputInfo()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Returns the info objects for the outputs, including their names and types. The underlying
collection is sorted based on the output id number.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The output information.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code.</dd>
</dl>
</li>
</ul>
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<h4>run</h4>
<pre class="methodSignature">public&nbsp;<a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a>&nbsp;run&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs)
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Scores an input feed dict, returning the map of all inferred outputs.
<p>The outputs are sorted based on their id number.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputs</code> - The inputs to score.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The inferred outputs.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code, the input names are invalid, or if
there are zero or too many inputs.</dd>
</dl>
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<h4>run</h4>
<pre class="methodSignature">public&nbsp;<a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a>&nbsp;run&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
<a href="OrtSession.RunOptions.html" title="class in ai.onnxruntime">OrtSession.RunOptions</a>&nbsp;runOptions)
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Scores an input feed dict, returning the map of all inferred outputs.
<p>The outputs are sorted based on their id number.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputs</code> - The inputs to score.</dd>
<dd><code>runOptions</code> - The RunOptions to control this run.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The inferred outputs.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code, the input names are invalid, or if
there are zero or too many inputs.</dd>
</dl>
</li>
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<h4>run</h4>
<pre class="methodSignature">public&nbsp;<a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a>&nbsp;run&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
java.util.Set&lt;java.lang.String&gt;&nbsp;requestedOutputs)
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Scores an input feed dict, returning the map of requested inferred outputs.
<p>The outputs are sorted based on the supplied set traversal order.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputs</code> - The inputs to score.</dd>
<dd><code>requestedOutputs</code> - The requested outputs.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The inferred outputs.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code, the input or output names are
invalid, or if there are zero or too many inputs or outputs.</dd>
</dl>
</li>
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<h4>run</h4>
<pre class="methodSignature">public&nbsp;<a href="OrtSession.Result.html" title="class in ai.onnxruntime">OrtSession.Result</a>&nbsp;run&#8203;(java.util.Map&lt;java.lang.String,&#8203;? extends <a href="OnnxTensorLike.html" title="class in ai.onnxruntime">OnnxTensorLike</a>&gt;&nbsp;inputs,
java.util.Set&lt;java.lang.String&gt;&nbsp;requestedOutputs,
<a href="OrtSession.RunOptions.html" title="class in ai.onnxruntime">OrtSession.RunOptions</a>&nbsp;runOptions)
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Scores an input feed dict, returning the map of requested inferred outputs.
<p>The outputs are sorted based on the supplied set traversal order.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputs</code> - The inputs to score.</dd>
<dd><code>requestedOutputs</code> - The requested outputs.</dd>
<dd><code>runOptions</code> - The RunOptions to control this run.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The inferred outputs.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If there was an error in native code, the input or output names are
invalid, or if there are zero or too many inputs or outputs.</dd>
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<pre class="methodSignature">public&nbsp;<a href="OnnxModelMetadata.html" title="class in ai.onnxruntime">OnnxModelMetadata</a>&nbsp;getMetadata()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Gets the metadata for the currently loaded model.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The metadata.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If the native call failed.</dd>
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<pre class="methodSignature">public&nbsp;long&nbsp;getProfilingStartTimeInNs()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Returns the timestamp that profiling started in nanoseconds.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the profiling start time in ns.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If the native call failed.</dd>
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<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;endProfiling()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Ends the profiling session and returns the output of the profiler.
<p>Profiling should be enabled in the <a href="OrtSession.SessionOptions.html" title="class in ai.onnxruntime"><code>OrtSession.SessionOptions</code></a> used to construct this <code>
Session</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The profiling output.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If the native call failed.</dd>
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<h4>toString</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<h4>close</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;close()
throws <a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></pre>
<div class="block">Closes the session, releasing it's resources.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code>&nbsp;in interface&nbsp;<code>java.lang.AutoCloseable</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="OrtException.html" title="class in ai.onnxruntime">OrtException</a></code> - If it failed to close.</dd>
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