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<div class="subTitle">org.apache.ignite.ml.dataset.impl.cache.util</div>
<h2 title="Class ComputeUtils" class="title">Class ComputeUtils</h2>
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<pre>public final class <span class="typeNameLabel">ComputeUtils</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Util class that provides common methods to perform computations on top of the Ignite Compute Grid.</div>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static 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="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#affinityCallWithRetries-org.apache.ignite.Ignite-java.util.Collection-org.apache.ignite.ml.math.functions.IgniteFunction-int-org.apache.ignite.ml.environment.deploy.DeployingContext-">affinityCallWithRetries</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a><span class='angle_bracket'>&gt;</span>&nbsp;cacheNames,
<a href="../../../../../../../../org/apache/ignite/ml/math/functions/IgniteFunction.html" title="interface in org.apache.ignite.ml.math.functions">IgniteFunction</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,R<span class='angle_bracket'>&gt;</span>&nbsp;fun,
int&nbsp;retries,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingContext)</code>
<div class="block">Calls the specified <code>fun</code> function on all partitions so that is't guaranteed that partitions with the same
index of all specified caches will be placed on the same node and will not be moved before computation is
finished.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#affinityCallWithRetries-org.apache.ignite.Ignite-java.util.Collection-org.apache.ignite.ml.math.functions.IgniteFunction-int-int-org.apache.ignite.ml.environment.deploy.DeployingContext-">affinityCallWithRetries</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a><span class='angle_bracket'>&gt;</span>&nbsp;cacheNames,
<a href="../../../../../../../../org/apache/ignite/ml/math/functions/IgniteFunction.html" title="interface in org.apache.ignite.ml.math.functions">IgniteFunction</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,R<span class='angle_bracket'>&gt;</span>&nbsp;fun,
int&nbsp;retries,
int&nbsp;interval,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingCtx)</code>
<div class="block">Calls the specified <code>fun</code> function on all partitions so that is't guaranteed that partitions with the same
index of all specified caches will be placed on the same node and will not be moved before computation is
finished.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span><br>C</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#getContext-org.apache.ignite.Ignite-java.lang.String-int-">getContext</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
int&nbsp;part)</code>
<div class="block">Extracts partition <code>context</code> from the Ignite Cache.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>K,V,C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>,D extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a><span class='angle_bracket'>&gt;</span><br>D</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#getData-org.apache.ignite.Ignite-java.lang.String-org.apache.ignite.lang.IgniteBiPredicate-org.apache.ignite.ml.dataset.UpstreamTransformerBuilder-java.lang.String-java.util.UUID-org.apache.ignite.ml.dataset.PartitionDataBuilder-org.apache.ignite.ml.environment.LearningEnvironment-boolean-">getData</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;upstreamCacheName,
<a href="../../../../../../../../org/apache/ignite/lang/IgniteBiPredicate.html" title="interface in org.apache.ignite.lang">IgniteBiPredicate</a><span class='angle_bracket'>&lt;</span>K,V<span class='angle_bracket'>&gt;</span>&nbsp;filter,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/UpstreamTransformerBuilder.html" title="interface in org.apache.ignite.ml.dataset">UpstreamTransformerBuilder</a>&nbsp;transformerBuilder,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/PartitionDataBuilder.html" title="interface in org.apache.ignite.ml.dataset">PartitionDataBuilder</a><span class='angle_bracket'>&lt;</span>K,V,C,D<span class='angle_bracket'>&gt;</span>&nbsp;partDataBuilder,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironment.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironment</a>&nbsp;env,
boolean&nbsp;isKeepBinary)</code>
<div class="block">Extracts partition <code>data</code> from the local storage, if it's not found in local storage recovers this <code>data</code> from a partition <code>upstream</code> and <code>context</code>.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironment.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironment</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#getLearningEnvironment-org.apache.ignite.Ignite-java.util.UUID-int-org.apache.ignite.ml.environment.LearningEnvironmentBuilder-">getLearningEnvironment</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId,
int&nbsp;part,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironmentBuilder</a>&nbsp;envBuilder)</code>
<div class="block">Gets learning environment for given partition.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>K,V,C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span><br>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#initContext-org.apache.ignite.Ignite-java.lang.String-org.apache.ignite.ml.dataset.UpstreamTransformerBuilder-org.apache.ignite.lang.IgniteBiPredicate-java.lang.String-org.apache.ignite.ml.dataset.PartitionContextBuilder-org.apache.ignite.ml.environment.LearningEnvironmentBuilder-int-int-boolean-org.apache.ignite.ml.environment.deploy.DeployingContext-">initContext</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;upstreamCacheName,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/UpstreamTransformerBuilder.html" title="interface in org.apache.ignite.ml.dataset">UpstreamTransformerBuilder</a>&nbsp;transformerBuilder,
<a href="../../../../../../../../org/apache/ignite/lang/IgniteBiPredicate.html" title="interface in org.apache.ignite.lang">IgniteBiPredicate</a><span class='angle_bracket'>&lt;</span>K,V<span class='angle_bracket'>&gt;</span>&nbsp;filter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/PartitionContextBuilder.html" title="interface in org.apache.ignite.ml.dataset">PartitionContextBuilder</a><span class='angle_bracket'>&lt;</span>K,V,C<span class='angle_bracket'>&gt;</span>&nbsp;ctxBuilder,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironmentBuilder</a>&nbsp;envBuilder,
int&nbsp;retries,
int&nbsp;interval,
boolean&nbsp;isKeepBinary,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingCtx)</code>
<div class="block">Initializes partition <code>context</code> by loading it from a partition <code>upstream</code>.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#removeData-org.apache.ignite.Ignite-java.util.UUID-">removeData</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId)</code>
<div class="block">Remove data from local cache by Dataset ID.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#removeLearningEnv-org.apache.ignite.Ignite-java.util.UUID-">removeLearningEnv</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId)</code>
<div class="block">Remove learning environment from local cache by Dataset ID.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <span class='angle_bracket'>&lt;</span>C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span><br>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/dataset/impl/cache/util/ComputeUtils.html#saveContext-org.apache.ignite.Ignite-java.lang.String-int-C-">saveContext</a></span>(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
int&nbsp;part,
C&nbsp;ctx)</code>
<div class="block">Saves the specified partition <code>context</code> into the Ignite Cache.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
</ul>
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<h3>Method Detail</h3>
<a name="affinityCallWithRetries-org.apache.ignite.Ignite-java.util.Collection-org.apache.ignite.ml.math.functions.IgniteFunction-int-int-org.apache.ignite.ml.environment.deploy.DeployingContext-">
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<h4>affinityCallWithRetries</h4>
<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;affinityCallWithRetries(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a><span class='angle_bracket'>&gt;</span>&nbsp;cacheNames,
<a href="../../../../../../../../org/apache/ignite/ml/math/functions/IgniteFunction.html" title="interface in org.apache.ignite.ml.math.functions">IgniteFunction</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,R<span class='angle_bracket'>&gt;</span>&nbsp;fun,
int&nbsp;retries,
int&nbsp;interval,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingCtx)</pre>
<div class="block">Calls the specified <code>fun</code> function on all partitions so that is't guaranteed that partitions with the same
index of all specified caches will be placed on the same node and will not be moved before computation is
finished. If partitions are placed on different nodes then call will be retried, but not more than <code>retries</code> times with <code>interval</code> interval specified in milliseconds.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>R</code> - Type of a result.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>cacheNames</code> - Collection of cache names.</dd>
<dd><code>fun</code> - Function to be applied on all partitions.</dd>
<dd><code>retries</code> - Number of retries for the case when one of partitions not found on the node.</dd>
<dd><code>interval</code> - Interval of retries for the case when one of partitions not found on the node.</dd>
<dd><code>deployingCtx</code> - Deploy context of user-defined classes for peer class loading.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Collection of results.</dd>
</dl>
</li>
</ul>
<a name="affinityCallWithRetries-org.apache.ignite.Ignite-java.util.Collection-org.apache.ignite.ml.math.functions.IgniteFunction-int-org.apache.ignite.ml.environment.deploy.DeployingContext-">
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<h4>affinityCallWithRetries</h4>
<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span>R<span class='angle_bracket'>&gt;</span>&nbsp;affinityCallWithRetries(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a><span class='angle_bracket'>&gt;</span>&nbsp;cacheNames,
<a href="../../../../../../../../org/apache/ignite/ml/math/functions/IgniteFunction.html" title="interface in org.apache.ignite.ml.math.functions">IgniteFunction</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,R<span class='angle_bracket'>&gt;</span>&nbsp;fun,
int&nbsp;retries,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingContext)</pre>
<div class="block">Calls the specified <code>fun</code> function on all partitions so that is't guaranteed that partitions with the same
index of all specified caches will be placed on the same node and will not be moved before computation is
finished. If partitions are placed on different nodes then call will be retried, but not more than <code>retries</code> times.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>R</code> - Type of a result.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>cacheNames</code> - Collection of cache names.</dd>
<dd><code>fun</code> - Function to be applied on all partitions.</dd>
<dd><code>retries</code> - Number of retries for the case when one of partitions not found on the node.</dd>
<dd><code>deployingContext</code> - Deploy context.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Collection of results.</dd>
</dl>
</li>
</ul>
<a name="getLearningEnvironment-org.apache.ignite.Ignite-java.util.UUID-int-org.apache.ignite.ml.environment.LearningEnvironmentBuilder-">
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<h4>getLearningEnvironment</h4>
<pre>public static&nbsp;<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironment.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironment</a>&nbsp;getLearningEnvironment(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId,
int&nbsp;part,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironmentBuilder</a>&nbsp;envBuilder)</pre>
<div class="block">Gets learning environment for given partition. If learning environment is not found in local node map,
it will be created with specified <a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment"><code>LearningEnvironmentBuilder</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>datasetId</code> - Dataset id.</dd>
<dd><code>part</code> - Partition index.</dd>
<dd><code>envBuilder</code> - <a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment"><code>LearningEnvironmentBuilder</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Learning environment for given partition.</dd>
</dl>
</li>
</ul>
<a name="getData-org.apache.ignite.Ignite-java.lang.String-org.apache.ignite.lang.IgniteBiPredicate-org.apache.ignite.ml.dataset.UpstreamTransformerBuilder-java.lang.String-java.util.UUID-org.apache.ignite.ml.dataset.PartitionDataBuilder-org.apache.ignite.ml.environment.LearningEnvironment-boolean-">
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<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>K,V,C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>,D extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a><span class='angle_bracket'>&gt;</span>&nbsp;D&nbsp;getData(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;upstreamCacheName,
<a href="../../../../../../../../org/apache/ignite/lang/IgniteBiPredicate.html" title="interface in org.apache.ignite.lang">IgniteBiPredicate</a><span class='angle_bracket'>&lt;</span>K,V<span class='angle_bracket'>&gt;</span>&nbsp;filter,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/UpstreamTransformerBuilder.html" title="interface in org.apache.ignite.ml.dataset">UpstreamTransformerBuilder</a>&nbsp;transformerBuilder,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/PartitionDataBuilder.html" title="interface in org.apache.ignite.ml.dataset">PartitionDataBuilder</a><span class='angle_bracket'>&lt;</span>K,V,C,D<span class='angle_bracket'>&gt;</span>&nbsp;partDataBuilder,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironment.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironment</a>&nbsp;env,
boolean&nbsp;isKeepBinary)</pre>
<div class="block">Extracts partition <code>data</code> from the local storage, if it's not found in local storage recovers this <code>data</code> from a partition <code>upstream</code> and <code>context</code>. Be aware that this method should be called from
the node where partition is placed.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>K</code> - Type of a key in <code>upstream</code> data.</dd>
<dd><code>V</code> - Type of a value in <code>upstream</code> data.</dd>
<dd><code>C</code> - Type of a partition <code>context</code>.</dd>
<dd><code>D</code> - Type of a partition <code>data</code>.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>upstreamCacheName</code> - Name of an <code>upstream</code> cache.</dd>
<dd><code>filter</code> - Filter for <code>upstream</code> data.</dd>
<dd><code>transformerBuilder</code> - Builder of upstream transformers.</dd>
<dd><code>datasetCacheName</code> - Name of a partition <code>context</code> cache.</dd>
<dd><code>datasetId</code> - Dataset ID.</dd>
<dd><code>partDataBuilder</code> - Partition data builder.</dd>
<dd><code>env</code> - Learning environment.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Partition <code>data</code>.</dd>
</dl>
</li>
</ul>
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<h4>removeData</h4>
<pre>public static&nbsp;void&nbsp;removeData(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId)</pre>
<div class="block">Remove data from local cache by Dataset ID.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>datasetId</code> - Dataset ID.</dd>
</dl>
</li>
</ul>
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<h4>removeLearningEnv</h4>
<pre>public static&nbsp;void&nbsp;removeLearningEnv(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;datasetId)</pre>
<div class="block">Remove learning environment from local cache by Dataset ID.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>datasetId</code> - Dataset ID.</dd>
</dl>
</li>
</ul>
<a name="initContext-org.apache.ignite.Ignite-java.lang.String-org.apache.ignite.ml.dataset.UpstreamTransformerBuilder-org.apache.ignite.lang.IgniteBiPredicate-java.lang.String-org.apache.ignite.ml.dataset.PartitionContextBuilder-org.apache.ignite.ml.environment.LearningEnvironmentBuilder-int-int-boolean-org.apache.ignite.ml.environment.deploy.DeployingContext-">
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<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>K,V,C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;void&nbsp;initContext(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;upstreamCacheName,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/UpstreamTransformerBuilder.html" title="interface in org.apache.ignite.ml.dataset">UpstreamTransformerBuilder</a>&nbsp;transformerBuilder,
<a href="../../../../../../../../org/apache/ignite/lang/IgniteBiPredicate.html" title="interface in org.apache.ignite.lang">IgniteBiPredicate</a><span class='angle_bracket'>&lt;</span>K,V<span class='angle_bracket'>&gt;</span>&nbsp;filter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
<a href="../../../../../../../../org/apache/ignite/ml/dataset/PartitionContextBuilder.html" title="interface in org.apache.ignite.ml.dataset">PartitionContextBuilder</a><span class='angle_bracket'>&lt;</span>K,V,C<span class='angle_bracket'>&gt;</span>&nbsp;ctxBuilder,
<a href="../../../../../../../../org/apache/ignite/ml/environment/LearningEnvironmentBuilder.html" title="interface in org.apache.ignite.ml.environment">LearningEnvironmentBuilder</a>&nbsp;envBuilder,
int&nbsp;retries,
int&nbsp;interval,
boolean&nbsp;isKeepBinary,
<a href="../../../../../../../../org/apache/ignite/ml/environment/deploy/DeployingContext.html" title="interface in org.apache.ignite.ml.environment.deploy">DeployingContext</a>&nbsp;deployingCtx)</pre>
<div class="block">Initializes partition <code>context</code> by loading it from a partition <code>upstream</code>.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>K</code> - Type of a key in <code>upstream</code> data.</dd>
<dd><code>V</code> - Type of a value in <code>upstream</code> data.</dd>
<dd><code>C</code> - Type of a partition <code>context</code>.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>upstreamCacheName</code> - Name of an <code>upstream</code> cache.</dd>
<dd><code>filter</code> - Filter for <code>upstream</code> data.</dd>
<dd><code>transformerBuilder</code> - Upstream transformer builder.</dd>
<dd><code>ctxBuilder</code> - Partition <code>context</code> builder.</dd>
<dd><code>envBuilder</code> - Environment builder.</dd>
<dd><code>isKeepBinary</code> - Support of binary objects.</dd>
<dd><code>deployingCtx</code> - Deploy context.</dd>
</dl>
</li>
</ul>
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<h4>getContext</h4>
<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;C&nbsp;getContext(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
int&nbsp;part)</pre>
<div class="block">Extracts partition <code>context</code> from the Ignite Cache.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>C</code> - Type of a partition <code>context</code>.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>datasetCacheName</code> - Dataset cache names.</dd>
<dd><code>part</code> - Partition index.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Partition <code>context</code>.</dd>
</dl>
</li>
</ul>
<a name="saveContext-org.apache.ignite.Ignite-java.lang.String-int-java.io.Serializable-">
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<h4>saveContext</h4>
<pre>public static&nbsp;<span class='angle_bracket'>&lt;</span>C extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;void&nbsp;saveContext(<a href="../../../../../../../../org/apache/ignite/Ignite.html" title="interface in org.apache.ignite">Ignite</a>&nbsp;ignite,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;datasetCacheName,
int&nbsp;part,
C&nbsp;ctx)</pre>
<div class="block">Saves the specified partition <code>context</code> into the Ignite Cache.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>C</code> - Type of a partition <code>context</code>.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignite</code> - Ignite instance.</dd>
<dd><code>datasetCacheName</code> - Dataset cache name.</dd>
<dd><code>part</code> - Partition index.</dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
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<p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2022 Copyright &#169; Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Database and Caching Platform</b> </td> <td>:&nbsp;&nbsp; ver. <strong>2.12.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; January 10 2022 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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