javadocAggregate/org/apache/calcite/model/JsonLattice.html - calcite-site - Git at Google

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 <div class="header">
 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.model</a></div>
 <h1 title="Class JsonLattice" class="title">Class JsonLattice</h1>
 </div>
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/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.calcite.model.JsonLattice</div>
 </div>
 <section class="class-description" id="class-description">
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">JsonLattice</span>
 <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
 <div class="block">Element that describes a star schema and provides a framework for defining,
  recognizing, and recommending materialized views at various levels of
  aggregation.

  <p>Occurs within <a href="JsonSchema.html#lattices"><code>JsonSchema.lattices</code></a>.</div>
 <dl class="notes">
 <dt>See Also:</dt>
 <dd>
 <ul class="see-list">
 <li><a href="JsonRoot.html" title="class in org.apache.calcite.model"><code>Description of schema elements</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- =========== FIELD SUMMARY =========== -->
 <li>
 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="caption"><span>Fields</span></div>
 <div class="summary-table three-column-summary">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Field</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>final boolean</code></div>
 <div class="col-second even-row-color"><code><a href="#algorithm" class="member-name-link">algorithm</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">Whether to use an optimization algorithm to suggest and populate an
  initial set of tiles.</div>
 </div>
 <div class="col-first odd-row-color"><code>final long</code></div>
 <div class="col-second odd-row-color"><code><a href="#algorithmMaxMillis" class="member-name-link">algorithmMaxMillis</a></code></div>
 <div class="col-last odd-row-color">
 <div class="block">Maximum time (in milliseconds) to run the algorithm.</div>
 </div>
 <div class="col-first even-row-color"><code>final boolean</code></div>
 <div class="col-second even-row-color"><code><a href="#auto" class="member-name-link">auto</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">Whether to materialize tiles on demand as queries are executed.</div>
 </div>
 <div class="col-first odd-row-color"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonMeasure.html" title="class in org.apache.calcite.model">JsonMeasure</a>&gt;</code></div>
 <div class="col-second odd-row-color"><code><a href="#defaultMeasures" class="member-name-link">defaultMeasures</a></code></div>
 <div class="col-last odd-row-color">
 <div class="block">List of measures that a tile should have by default.</div>
 </div>
 <div class="col-first even-row-color"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
 <div class="col-second even-row-color"><code><a href="#name" class="member-name-link">name</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">The name of this lattice.</div>
 </div>
 <div class="col-first odd-row-color"><code>final @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a></code></div>
 <div class="col-second odd-row-color"><code><a href="#rowCountEstimate" class="member-name-link">rowCountEstimate</a></code></div>
 <div class="col-last odd-row-color">
 <div class="block">Estimated number of rows.</div>
 </div>
 <div class="col-first even-row-color"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></div>
 <div class="col-second even-row-color"><code><a href="#sql" class="member-name-link">sql</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">SQL query that defines the lattice.</div>
 </div>
 <div class="col-first odd-row-color"><code>final @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
 <div class="col-second odd-row-color"><code><a href="#statisticProvider" class="member-name-link">statisticProvider</a></code></div>
 <div class="col-last odd-row-color">
 <div class="block">Name of a class that provides estimates of the number of distinct values
  in each column.</div>
 </div>
 <div class="col-first even-row-color"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonTile.html" title="class in org.apache.calcite.model">JsonTile</a>&gt;</code></div>
 <div class="col-second even-row-color"><code><a href="#tiles" class="member-name-link">tiles</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">List of materialized aggregates to create up front.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- ======== 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(java.lang.String,java.lang.Object,java.lang.Boolean,java.lang.Boolean,java.lang.Long,java.lang.Double,java.lang.String,java.util.List)" class="member-name-link">JsonLattice</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name,
  <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;sql,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Boolean.html" title="class or interface in java.lang" class="external-link">Boolean</a>&nbsp;auto,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Boolean.html" title="class or interface in java.lang" class="external-link">Boolean</a>&nbsp;algorithm,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&nbsp;algorithmMaxMillis,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&nbsp;rowCountEstimate,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;statisticProvider,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonMeasure.html" title="class in org.apache.calcite.model">JsonMeasure</a>&gt;&nbsp;defaultMeasures)</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-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>void</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#accept(org.apache.calcite.model.ModelHandler)" class="member-name-link">accept</a><wbr>(<a href="ModelHandler.html" title="class in org.apache.calcite.model">ModelHandler</a>&nbsp;handler)</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><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSql()" class="member-name-link">getSql</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns the SQL query as a string, concatenating a list of lines if
  necessary.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</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>void</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#visitChildren(org.apache.calcite.model.ModelHandler)" class="member-name-link">visitChildren</a><wbr>(<a href="ModelHandler.html" title="class in org.apache.calcite.model">ModelHandler</a>&nbsp;modelHandler)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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">
 <!-- ============ FIELD DETAIL =========== -->
 <li>
 <section class="field-details" id="field-detail">
 <h2>Field Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="name">
 <h3>name</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">name</span></div>
 <div class="block">The name of this lattice.

  <p>Required.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="sql">
 <h3>sql</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span>&nbsp;<span class="element-name">sql</span></div>
 <div class="block">SQL query that defines the lattice.

  <p>Must be a string or a list of strings (which are concatenated into a
  multi-line SQL string, separated by newlines).

  <p>The structure of the SQL statement, and in particular the order of
  items in the FROM clause, defines the fact table, dimension tables, and
  join paths for this lattice.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="auto">
 <h3>auto</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">auto</span></div>
 <div class="block">Whether to materialize tiles on demand as queries are executed.

  <p>Optional; default is true.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="algorithm">
 <h3>algorithm</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">algorithm</span></div>
 <div class="block">Whether to use an optimization algorithm to suggest and populate an
  initial set of tiles.

  <p>Optional; default is false.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="algorithmMaxMillis">
 <h3>algorithmMaxMillis</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name">algorithmMaxMillis</span></div>
 <div class="block">Maximum time (in milliseconds) to run the algorithm.

  <p>Optional; default is -1, meaning no timeout.

  <p>When the timeout is reached, Calcite uses the best result that has
  been obtained so far.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="rowCountEstimate">
 <h3>rowCountEstimate</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a></span>&nbsp;<span class="element-name">rowCountEstimate</span></div>
 <div class="block">Estimated number of rows.

  <p>If null, Calcite will a query to find the real value.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="statisticProvider">
 <h3>statisticProvider</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">statisticProvider</span></div>
 <div class="block">Name of a class that provides estimates of the number of distinct values
  in each column.

  <p>The class must implement the
  <a href="../materialize/LatticeStatisticProvider.html" title="interface in org.apache.calcite.materialize"><code>LatticeStatisticProvider</code></a> interface.

  <p>Or, you can use a class name plus a static field, for example
  "org.apache.calcite.materialize.Lattices#CACHING_SQL_STATISTIC_PROVIDER".

  <p>If not set, Calcite will generate and execute a SQL query to find the
  real value, and cache the results.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="tiles">
 <h3>tiles</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonTile.html" title="class in org.apache.calcite.model">JsonTile</a>&gt;</span>&nbsp;<span class="element-name">tiles</span></div>
 <div class="block">List of materialized aggregates to create up front.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="defaultMeasures">
 <h3>defaultMeasures</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonMeasure.html" title="class in org.apache.calcite.model">JsonMeasure</a>&gt;</span>&nbsp;<span class="element-name">defaultMeasures</span></div>
 <div class="block">List of measures that a tile should have by default.

  <p>A tile can define its own measures, including measures not in this list.

  <p>Optional. The default list is just "count(*)".</div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ========= 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;(java.lang.String,java.lang.Object,java.lang.Boolean,java.lang.Boolean,java.lang.Long,java.lang.Double,java.lang.String,java.util.List)">
 <h3>JsonLattice</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">JsonLattice</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name,
  <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;sql,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Boolean.html" title="class or interface in java.lang" class="external-link">Boolean</a>&nbsp;auto,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Boolean.html" title="class or interface in java.lang" class="external-link">Boolean</a>&nbsp;algorithm,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&nbsp;algorithmMaxMillis,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&nbsp;rowCountEstimate,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;statisticProvider,
  @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="JsonMeasure.html" title="class in org.apache.calcite.model">JsonMeasure</a>&gt;&nbsp;defaultMeasures)</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="accept(org.apache.calcite.model.ModelHandler)">
 <h3>accept</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">accept</span><wbr><span class="parameters">(<a href="ModelHandler.html" title="class in org.apache.calcite.model">ModelHandler</a>&nbsp;handler)</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="toString()">
 <h3>toString</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">toString</span>()</div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getSql()">
 <h3>getSql</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">getSql</span>()</div>
 <div class="block">Returns the SQL query as a string, concatenating a list of lines if
  necessary.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="visitChildren(org.apache.calcite.model.ModelHandler)">
 <h3>visitChildren</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">visitChildren</span><wbr><span class="parameters">(<a href="ModelHandler.html" title="class in org.apache.calcite.model">ModelHandler</a>&nbsp;modelHandler)</span></div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </section>
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