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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.calcite.linq4j.function</a></div> |
| <h1 title="Class Functions" class="title">Class Functions</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.linq4j.function.Functions</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">Functions</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">Utilities relating to functions.</div> |
| </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>static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>></code></div> |
| <div class="col-second even-row-color"><code><a href="#FUNCTION_RESULT_TYPES" class="member-name-link">FUNCTION_RESULT_TYPES</a></code></div> |
| <div class="col-last even-row-color"> </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-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static 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><button id="method-summary-table-tab6" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab6', 3)" class="table-tab">Deprecated 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-tab1 method-summary-table-tab4 method-summary-table-tab6"><code>static <T1,<wbr> |
| R> <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><R></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#adapt(java.util.List,org.apache.calcite.linq4j.function.Function1)" class="member-name-link">adapt</a><wbr>(<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><T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr>R> f)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4 method-summary-table-tab6"> |
| <div class="block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code></div> |
| </div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><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 method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#adapt(org.apache.calcite.linq4j.function.DoubleFunction1)" class="member-name-link">adapt</a><wbr>(<a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function">DoubleFunction1</a><T1> f)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Adapts a <a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>DoubleFunction1</code></a> (that returns a <code>double</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <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"><code>Double</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Float.html" title="class or interface in java.lang" class="external-link">Float</a>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#adapt(org.apache.calcite.linq4j.function.FloatFunction1)" class="member-name-link">adapt</a><wbr>(<a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function">FloatFunction1</a><T1> f)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Adapts a <a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>FloatFunction1</code></a> (that returns a <code>float</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Float.html" title="class or interface in java.lang" class="external-link"><code>Float</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#adapt(org.apache.calcite.linq4j.function.IntegerFunction1)" class="member-name-link">adapt</a><wbr>(<a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function">IntegerFunction1</a><T1> f)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Adapts an <a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>IntegerFunction1</code></a> (that returns an <code>int</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning an <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link"><code>Integer</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><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>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#adapt(org.apache.calcite.linq4j.function.LongFunction1)" class="member-name-link">adapt</a><wbr>(<a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function">LongFunction1</a><T1> f)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Adapts a <a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>LongFunction1</code></a> (that returns a <code>long</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <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"><code>Long</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4 method-summary-table-tab6"><code>static <T,<wbr> |
| R> <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><R></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#adapt(T%5B%5D,org.apache.calcite.linq4j.function.Function1)" class="member-name-link">adapt</a><wbr>(T[] ts, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R> f)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4 method-summary-table-tab6"> |
| <div class="block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code> |
| and <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Arrays.html#asList(T...)" title="class or interface in java.util" class="external-link"><code>Arrays.asList(Object[])</code></a></div> |
| </div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <E> boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#all(java.util.List,org.apache.calcite.linq4j.function.Predicate1)" class="member-name-link">all</a><wbr>(<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><? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns whether <code>predicate</code> is true for all elements of |
| <code>list</code>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1,<wbr> |
| R> <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><R></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#apply(java.util.List,org.apache.calcite.linq4j.function.Function1)" class="member-name-link">apply</a><wbr>(<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><T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr>R> f)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Creates a copy of a list, applying a function to each element.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T[]></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#arrayComparer()" class="member-name-link">arrayComparer</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that works on arrays of objects.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T,<wbr> |
| R> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#constant(R)" class="member-name-link">constant</a><wbr>(R r)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a 1-parameter function that always returns the same value.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T,<wbr> |
| R> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#constantNull()" class="member-name-link">constantNull</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a 1-parameter function that always returns null.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <E> boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#exists(java.util.List,org.apache.calcite.linq4j.function.Predicate1)" class="member-name-link">exists</a><wbr>(<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><? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns whether there is an element in <code>list</code> for which |
| <code>predicate</code> is true.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#falsePredicate1()" class="member-name-link">falsePredicate1</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1,<wbr> |
| T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#falsePredicate2()" class="member-name-link">falsePredicate2</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">A predicate with two parameters that always returns <code>false</code>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <E> <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><E></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#filter(java.util.List,org.apache.calcite.linq4j.function.Predicate1)" class="member-name-link">filter</a><wbr>(<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><E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a list that contains only elements of <code>list</code> that match |
| <code>predicate</code>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#functionClass(java.lang.reflect.Type)" class="member-name-link">functionClass</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> aClass)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns the appropriate interface for a lambda function with |
| 1 argument and the given return type.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <E> <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><E></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#generate(int,java.util.function.IntFunction)" class="member-name-link">generate</a><wbr>(int size, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/IntFunction.html" title="class or interface in java.util.function" class="external-link">IntFunction</a><E> fn)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a list generated by applying a function to each index between |
| 0 and <code>size</code> - 1.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#identityComparer()" class="member-name-link">identityComparer</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that uses object identity and hash |
| code.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,<wbr>TSource></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#identitySelector()" class="member-name-link">identitySelector</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <R> <a href="Function0.html" title="interface in org.apache.calcite.linq4j.function">Function0</a><R></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#ignore0()" class="member-name-link">ignore0</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a function of arity 0 that does nothing.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <R,<wbr> |
| T0> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><R,<wbr>T0></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#ignore1()" class="member-name-link">ignore1</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a function of arity 1 that does nothing.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <R,<wbr> |
| T0,<wbr> |
| T1> <a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><R,<wbr>T0,<wbr>T1></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#ignore2()" class="member-name-link">ignore2</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a function of arity 2 that does nothing.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a><T>><br><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#nullsComparator(boolean,boolean)" class="member-name-link">nullsComparator</a><wbr>(boolean nullsFirst, |
| boolean reverse)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link"><code>Comparator</code></a> that handles null values.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a><T>><br><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#nullsComparator(boolean,boolean,java.util.Comparator)" class="member-name-link">nullsComparator</a><wbr>(boolean nullsFirst, |
| boolean reverse, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T> comparator)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link"><code>Comparator</code></a> that handles null values.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T,<wbr> |
| T2> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#ofTypePredicate(java.lang.Class)" class="member-name-link">ofTypePredicate</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T2> clazz)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Creates a predicate that returns whether an object is an instance of a |
| particular type or is null.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T,<wbr> |
| T2> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#selectorComparer(org.apache.calcite.linq4j.function.Function1)" class="member-name-link">selectorComparer</a><wbr>(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>T2> selector)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that uses a selector function.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1,<wbr> |
| T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toPredicate(org.apache.calcite.linq4j.function.Function2)" class="member-name-link">toPredicate</a><wbr>(<a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><T1,<wbr>T2,<wbr><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>> function)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Converts a 2-parameter function to a predicate.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1,<wbr> |
| T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toPredicate2(org.apache.calcite.linq4j.function.Predicate1)" class="member-name-link">toPredicate2</a><wbr>(<a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T1> p1)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,<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>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toStringSelector()" class="member-name-link">toStringSelector</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Returns a selector that calls the <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"><code>Object.toString()</code></a> method on |
| each element.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#truePredicate1()" class="member-name-link">truePredicate1</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <T1,<wbr> |
| T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#truePredicate2()" class="member-name-link">truePredicate2</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">A predicate with two parameters that always returns <code>true</code>.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class 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#toString()" title="class or interface in java.lang" class="external-link">toString</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="FUNCTION_RESULT_TYPES"> |
| <h3>FUNCTION_RESULT_TYPES</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>></span> <span class="element-name">FUNCTION_RESULT_TYPES</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="constant(R)"> |
| <h3 id="constant(java.lang.Object)">constant</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T,<wbr> |
| R></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R></span> <span class="element-name">constant</span><wbr><span class="parameters">(R r)</span></div> |
| <div class="block">Returns a 1-parameter function that always returns the same value.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="constantNull()"> |
| <h3>constantNull</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T,<wbr> |
| R></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R></span> <span class="element-name">constantNull</span>()</div> |
| <div class="block">Returns a 1-parameter function that always returns null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="truePredicate1()"> |
| <h3>truePredicate1</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></span> <span class="element-name">truePredicate1</span>()</div> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - First parameter type</dd> |
| <dt>Returns:</dt> |
| <dd>Predicate that always returns true</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="falsePredicate1()"> |
| <h3>falsePredicate1</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></span> <span class="element-name">falsePredicate1</span>()</div> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - First parameter type</dd> |
| <dt>Returns:</dt> |
| <dd>Predicate that always returns true</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="truePredicate2()"> |
| <h3>truePredicate2</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| T2></span> <span class="return-type"><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></span> <span class="element-name">truePredicate2</span>()</div> |
| <div class="block">A predicate with two parameters that always returns <code>true</code>.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T1</code> - First parameter type</dd> |
| <dd><code>T2</code> - Second parameter type</dd> |
| <dt>Returns:</dt> |
| <dd>Predicate that always returns true</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="falsePredicate2()"> |
| <h3>falsePredicate2</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| T2></span> <span class="return-type"><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></span> <span class="element-name">falsePredicate2</span>()</div> |
| <div class="block">A predicate with two parameters that always returns <code>false</code>.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T1</code> - First parameter type</dd> |
| <dd><code>T2</code> - Second parameter type</dd> |
| <dt>Returns:</dt> |
| <dd>Predicate that always returns false</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="identitySelector()"> |
| <h3>identitySelector</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><TSource></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,<wbr>TSource></span> <span class="element-name">identitySelector</span>()</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="toStringSelector()"> |
| <h3>toStringSelector</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><TSource></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,<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>></span> <span class="element-name">toStringSelector</span>()</div> |
| <div class="block">Returns a selector that calls the <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"><code>Object.toString()</code></a> method on |
| each element.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ofTypePredicate(java.lang.Class)"> |
| <h3>ofTypePredicate</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T,<wbr> |
| T2></span> <span class="return-type"><a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></span> <span class="element-name">ofTypePredicate</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T2> clazz)</span></div> |
| <div class="block">Creates a predicate that returns whether an object is an instance of a |
| particular type or is null.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - Type of objects to test</dd> |
| <dd><code>T2</code> - Desired type</dd> |
| <dt>Parameters:</dt> |
| <dd><code>clazz</code> - Desired type</dd> |
| <dt>Returns:</dt> |
| <dd>Predicate that tests for desired type</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="toPredicate2(org.apache.calcite.linq4j.function.Predicate1)"> |
| <h3>toPredicate2</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| T2></span> <span class="return-type"><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></span> <span class="element-name">toPredicate2</span><wbr><span class="parameters">(<a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T1> p1)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="toPredicate(org.apache.calcite.linq4j.function.Function2)"> |
| <h3>toPredicate</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| T2></span> <span class="return-type"><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,<wbr>T2></span> <span class="element-name">toPredicate</span><wbr><span class="parameters">(<a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><T1,<wbr>T2,<wbr><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>> function)</span></div> |
| <div class="block">Converts a 2-parameter function to a predicate.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="functionClass(java.lang.reflect.Type)"> |
| <h3>functionClass</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>></span> <span class="element-name">functionClass</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> aClass)</span></div> |
| <div class="block">Returns the appropriate interface for a lambda function with |
| 1 argument and the given return type. |
| |
| <p>For example:</p> |
| functionClass(Integer.TYPE) returns IntegerFunction1.class |
| functionClass(String.class) returns Function1.class</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>aClass</code> - Return type</dd> |
| <dt>Returns:</dt> |
| <dd>Function class</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(org.apache.calcite.linq4j.function.IntegerFunction1)"> |
| <h3>adapt</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>></span> <span class="element-name">adapt</span><wbr><span class="parameters">(<a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function">IntegerFunction1</a><T1> f)</span></div> |
| <div class="block">Adapts an <a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>IntegerFunction1</code></a> (that returns an <code>int</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning an <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link"><code>Integer</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(org.apache.calcite.linq4j.function.DoubleFunction1)"> |
| <h3>adapt</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><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> <span class="element-name">adapt</span><wbr><span class="parameters">(<a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function">DoubleFunction1</a><T1> f)</span></div> |
| <div class="block">Adapts a <a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>DoubleFunction1</code></a> (that returns a <code>double</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <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"><code>Double</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(org.apache.calcite.linq4j.function.LongFunction1)"> |
| <h3>adapt</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><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>></span> <span class="element-name">adapt</span><wbr><span class="parameters">(<a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function">LongFunction1</a><T1> f)</span></div> |
| <div class="block">Adapts a <a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>LongFunction1</code></a> (that returns a <code>long</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <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"><code>Long</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(org.apache.calcite.linq4j.function.FloatFunction1)"> |
| <h3>adapt</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Float.html" title="class or interface in java.lang" class="external-link">Float</a>></span> <span class="element-name">adapt</span><wbr><span class="parameters">(<a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function">FloatFunction1</a><T1> f)</span></div> |
| <div class="block">Adapts a <a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function"><code>FloatFunction1</code></a> (that returns a <code>float</code>) to |
| an <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function"><code>Function1</code></a> returning a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Float.html" title="class or interface in java.lang" class="external-link"><code>Float</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(java.util.List,org.apache.calcite.linq4j.function.Function1)"> |
| <h3>adapt</h3> |
| <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a> |
| </span><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| R></span> <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><R></span> <span class="element-name">adapt</span><wbr><span class="parameters">(<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><T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr>R> f)</span></div> |
| <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code></div> |
| </div> |
| <div class="block">Creates a view of a list that applies a function to each element.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="adapt(T[],org.apache.calcite.linq4j.function.Function1)"> |
| <h3 id="adapt(java.lang.Object[],org.apache.calcite.linq4j.function.Function1)">adapt</h3> |
| <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a> |
| </span><span class="modifiers">public static</span> <span class="type-parameters"><T,<wbr> |
| R></span> <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><R></span> <span class="element-name">adapt</span><wbr><span class="parameters">(T[] ts, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>R> f)</span></div> |
| <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code> |
| and <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Arrays.html#asList(T...)" title="class or interface in java.util" class="external-link"><code>Arrays.asList(Object[])</code></a></div> |
| </div> |
| <div class="block">Creates a view of an array that applies a function to each element.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="apply(java.util.List,org.apache.calcite.linq4j.function.Function1)"> |
| <h3>apply</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T1,<wbr> |
| R></span> <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><R></span> <span class="element-name">apply</span><wbr><span class="parameters">(<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><T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,<wbr>R> f)</span></div> |
| <div class="block">Creates a copy of a list, applying a function to each element.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="filter(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <h3>filter</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><E></span> <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><E></span> <span class="element-name">filter</span><wbr><span class="parameters">(<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><E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</span></div> |
| <div class="block">Returns a list that contains only elements of <code>list</code> that match |
| <code>predicate</code>. Avoids allocating a list if all elements match or no |
| elements match.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="exists(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <h3>exists</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><E></span> <span class="return-type">boolean</span> <span class="element-name">exists</span><wbr><span class="parameters">(<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><? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</span></div> |
| <div class="block">Returns whether there is an element in <code>list</code> for which |
| <code>predicate</code> is true.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="all(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <h3>all</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><E></span> <span class="return-type">boolean</span> <span class="element-name">all</span><wbr><span class="parameters">(<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><? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</span></div> |
| <div class="block">Returns whether <code>predicate</code> is true for all elements of |
| <code>list</code>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="generate(int,java.util.function.IntFunction)"> |
| <h3>generate</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><E></span> <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><E></span> <span class="element-name">generate</span><wbr><span class="parameters">(int size, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/IntFunction.html" title="class or interface in java.util.function" class="external-link">IntFunction</a><E> fn)</span></div> |
| <div class="block">Returns a list generated by applying a function to each index between |
| 0 and <code>size</code> - 1.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ignore0()"> |
| <h3>ignore0</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><R></span> <span class="return-type"><a href="Function0.html" title="interface in org.apache.calcite.linq4j.function">Function0</a><R></span> <span class="element-name">ignore0</span>()</div> |
| <div class="block">Returns a function of arity 0 that does nothing.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>R</code> - Return type</dd> |
| <dt>Returns:</dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ignore1()"> |
| <h3>ignore1</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><R,<wbr> |
| T0></span> <span class="return-type"><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><R,<wbr>T0></span> <span class="element-name">ignore1</span>()</div> |
| <div class="block">Returns a function of arity 1 that does nothing.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>R</code> - Return type</dd> |
| <dd><code>T0</code> - Type of parameter 0</dd> |
| <dt>Returns:</dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ignore2()"> |
| <h3>ignore2</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><R,<wbr> |
| T0,<wbr> |
| T1></span> <span class="return-type"><a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><R,<wbr>T0,<wbr>T1></span> <span class="element-name">ignore2</span>()</div> |
| <div class="block">Returns a function of arity 2 that does nothing.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>R</code> - Return type</dd> |
| <dd><code>T0</code> - Type of parameter 0</dd> |
| <dd><code>T1</code> - Type of parameter 1</dd> |
| <dt>Returns:</dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="nullsComparator(boolean,boolean)"> |
| <h3>nullsComparator</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a><T>></span> |
| <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T></span> <span class="element-name">nullsComparator</span><wbr><span class="parameters">(boolean nullsFirst, |
| boolean reverse)</span></div> |
| <div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link"><code>Comparator</code></a> that handles null values.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>nullsFirst</code> - Whether nulls come before all other values</dd> |
| <dd><code>reverse</code> - Whether to reverse the usual order of <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link"><code>Comparable</code></a>s</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="nullsComparator(boolean,boolean,java.util.Comparator)"> |
| <h3>nullsComparator</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a><T>></span> |
| <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T></span> <span class="element-name">nullsComparator</span><wbr><span class="parameters">(boolean nullsFirst, |
| boolean reverse, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link">Comparator</a><T> comparator)</span></div> |
| <div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Comparator.html" title="class or interface in java.util" class="external-link"><code>Comparator</code></a> that handles null values.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>nullsFirst</code> - Whether nulls come before all other values</dd> |
| <dd><code>reverse</code> - Whether to reverse the usual order of <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link"><code>Comparable</code></a>s</dd> |
| <dd><code>comparator</code> - Comparator to be used for comparison</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="identityComparer()"> |
| <h3>identityComparer</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></span> <span class="element-name">identityComparer</span>()</div> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that uses object identity and hash |
| code.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="arrayComparer()"> |
| <h3>arrayComparer</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T[]></span> <span class="element-name">arrayComparer</span>()</div> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that works on arrays of objects.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="selectorComparer(org.apache.calcite.linq4j.function.Function1)"> |
| <h3>selectorComparer</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="type-parameters"><T,<wbr> |
| T2></span> <span class="return-type"><a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></span> <span class="element-name">selectorComparer</span><wbr><span class="parameters">(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,<wbr>T2> selector)</span></div> |
| <div class="block">Returns an <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function"><code>EqualityComparer</code></a> that uses a selector function.</div> |
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