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| <div class="subTitle">org.apache.calcite.linq4j</div> |
| <h2 title="Class Linq4j.CartesianProductListEnumerator" class="title">Class Linq4j.CartesianProductListEnumerator<E></h2> |
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| <li><a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html" title="class in org.apache.calcite.linq4j">org.apache.calcite.linq4j.CartesianProductEnumerator</a><E,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><E>></li> |
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| <li>org.apache.calcite.linq4j.Linq4j.CartesianProductListEnumerator<E></li> |
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| <dd><code>E</code> - element type</dd> |
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| <pre>private static class <span class="typeNameLabel">Linq4j.CartesianProductListEnumerator<E></span> |
| extends <a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html" title="class in org.apache.calcite.linq4j">CartesianProductEnumerator</a><E,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><E>></pre> |
| <div class="block">Enumerates over the cartesian product of the given lists, returning |
| a list for each row.</div> |
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| <h3>Fields inherited from class org.apache.calcite.linq4j.<a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html" title="class in org.apache.calcite.linq4j">CartesianProductEnumerator</a></h3> |
| <code><a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html#elements">elements</a></code></li> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html#CartesianProductListEnumerator-java.util.List-">CartesianProductListEnumerator</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/linq4j/Enumerator.html" title="interface in org.apache.calcite.linq4j">Enumerator</a><<a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html" title="type parameter in Linq4j.CartesianProductListEnumerator">E</a>>> enumerators)</code> </td> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html" title="type parameter in Linq4j.CartesianProductListEnumerator">E</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html#current--">current</a></span>()</code> |
| <div class="block">Gets the current element in the collection.</div> |
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| <h3>Methods inherited from class org.apache.calcite.linq4j.<a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html" title="class in org.apache.calcite.linq4j">CartesianProductEnumerator</a></h3> |
| <code><a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html#close--">close</a>, <a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html#moveNext--">moveNext</a>, <a href="../../../../org/apache/calcite/linq4j/CartesianProductEnumerator.html#reset--">reset</a></code></li> |
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| <a name="CartesianProductListEnumerator-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>CartesianProductListEnumerator</h4> |
| <pre>CartesianProductListEnumerator(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/linq4j/Enumerator.html" title="interface in org.apache.calcite.linq4j">Enumerator</a><<a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html" title="type parameter in Linq4j.CartesianProductListEnumerator">E</a>>> enumerators)</pre> |
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| <h4>current</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/linq4j/Linq4j.CartesianProductListEnumerator.html" title="type parameter in Linq4j.CartesianProductListEnumerator">E</a>> current()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/calcite/linq4j/Enumerator.html#current--">Enumerator</a></code></span></div> |
| <div class="block">Gets the current element in the collection. |
| |
| <p>After an enumerator is created or after the <a href="../../../../org/apache/calcite/linq4j/Enumerator.html#reset--"><code>Enumerator.reset()</code></a> method is |
| called, the <a href="../../../../org/apache/calcite/linq4j/Enumerator.html#moveNext--"><code>Enumerator.moveNext()</code></a> method must be called to advance the |
| enumerator to the first element of the collection before reading the |
| value of the <code>current</code> property; otherwise, <code>current</code> is |
| undefined. |
| |
| <p>This method also throws <a href="https://docs.oracle.com/javase/8/docs/api/java/util/NoSuchElementException.html?is-external=true" title="class or interface in java.util"><code>NoSuchElementException</code></a> if |
| the last call to <code>moveNext</code> returned <code>false</code>, which indicates |
| the end of the collection. |
| |
| <p>This method does not move the position of the enumerator, and |
| consecutive calls to <code>current</code> return the same object until either |
| <code>moveNext</code> or <code>reset</code> is called. |
| |
| <p>An enumerator remains valid as long as the collection remains |
| unchanged. If changes are made to the collection, such as adding, |
| modifying, or deleting elements, the enumerator is irrecoverably |
| invalidated. The next call to <code>moveNext</code> or <code>reset</code> may, |
| at the discretion of the implementation, throw a |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/ConcurrentModificationException.html?is-external=true" title="class or interface in java.util"><code>ConcurrentModificationException</code></a>. If the collection is |
| modified between <code>moveNext</code> and <code>current</code>, <code>current</code> |
| returns the element that it is set to, even if the enumerator is already |
| invalidated.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Current element</dd> |
| </dl> |
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