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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.linq4j.function</a></div> |
| <h2 title="Class Functions" class="title">Class Functions</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <li>org.apache.calcite.linq4j.function.Functions</li> |
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| <pre>public abstract class <span class="typeNameLabel">Functions</span> |
| extends java.lang.Object</pre> |
| <div class="block">Utilities relating to functions.</div> |
| </li> |
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| <!-- ======== NESTED CLASS SUMMARY ======== --> |
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| </a> |
| <h3>Nested Class Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.ArrayEqualityComparer.html" title="class in org.apache.calcite.linq4j.function">Functions.ArrayEqualityComparer</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Array equality comparer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.GeneratingList.html" title="class in org.apache.calcite.linq4j.function">Functions.GeneratingList</a><<a href="Functions.GeneratingList.html" title="type parameter in Functions.GeneratingList">E</a>></span></code></th> |
| <td class="colLast"> |
| <div class="block">List that generates each element using a function.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.IdentityEqualityComparer.html" title="class in org.apache.calcite.linq4j.function">Functions.IdentityEqualityComparer</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Identity equality comparer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.Ignore.html" title="class in org.apache.calcite.linq4j.function">Functions.Ignore</a><<a href="Functions.Ignore.html" title="type parameter in Functions.Ignore">R</a>,​<a href="Functions.Ignore.html" title="type parameter in Functions.Ignore">T0</a>,​<a href="Functions.Ignore.html" title="type parameter in Functions.Ignore">T1</a>></span></code></th> |
| <td class="colLast"> |
| <div class="block">Ignore.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.NullsFirstComparator.html" title="class in org.apache.calcite.linq4j.function">Functions.NullsFirstComparator</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Nulls first comparator.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.NullsFirstReverseComparator.html" title="class in org.apache.calcite.linq4j.function">Functions.NullsFirstReverseComparator</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Nulls first reverse comparator.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.NullsLastComparator.html" title="class in org.apache.calcite.linq4j.function">Functions.NullsLastComparator</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Nulls last comparator.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.NullsLastReverseComparator.html" title="class in org.apache.calcite.linq4j.function">Functions.NullsLastReverseComparator</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Nulls last reverse comparator.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Functions.SelectorEqualityComparer.html" title="class in org.apache.calcite.linq4j.function">Functions.SelectorEqualityComparer</a><<a href="Functions.SelectorEqualityComparer.html" title="type parameter in Functions.SelectorEqualityComparer">T</a>,​<a href="Functions.SelectorEqualityComparer.html" title="type parameter in Functions.SelectorEqualityComparer">T2</a>></span></code></th> |
| <td class="colLast"> |
| <div class="block">Selector equality comparer.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <section role="region"> |
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| <li class="blockList"><a id="field.summary"> |
| <!-- --> |
| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><java.lang.Object[]></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ARRAY_COMPARER">ARRAY_COMPARER</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CONSTANT_NULL_FUNCTION1">CONSTANT_NULL_FUNCTION1</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.util.Map<java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>,​java.lang.Class></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FUNCTION_RESULT_TYPES">FUNCTION_RESULT_TYPES</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static java.util.Map<java.lang.Class,​java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FUNCTION1_CLASSES">FUNCTION1_CLASSES</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><java.lang.Object></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#IDENTITY_COMPARER">IDENTITY_COMPARER</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static java.util.Comparator</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NULLS_FIRST_COMPARATOR">NULLS_FIRST_COMPARATOR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static java.util.Comparator</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NULLS_FIRST_REVERSE_COMPARATOR">NULLS_FIRST_REVERSE_COMPARATOR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static java.util.Comparator</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NULLS_LAST_COMPARATOR">NULLS_LAST_COMPARATOR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static java.util.Comparator</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NULLS_LAST_REVERSE_COMPARATOR">NULLS_LAST_REVERSE_COMPARATOR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TO_STRING_FUNCTION1">TO_STRING_FUNCTION1</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">Functions</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| </ul> |
| </section> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <T1,​R><br>java.util.List<R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(java.util.List,org.apache.calcite.linq4j.function.Function1)">adapt</a></span>​(java.util.List<T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​R> f)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Double></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(org.apache.calcite.linq4j.function.DoubleFunction1)">adapt</a></span>​(<a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function">DoubleFunction1</a><T1> f)</code></th> |
| <td class="colLast"> |
| <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 <code>Double</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Float></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(org.apache.calcite.linq4j.function.FloatFunction1)">adapt</a></span>​(<a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function">FloatFunction1</a><T1> f)</code></th> |
| <td class="colLast"> |
| <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 <code>Float</code>.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Integer></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(org.apache.calcite.linq4j.function.IntegerFunction1)">adapt</a></span>​(<a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function">IntegerFunction1</a><T1> f)</code></th> |
| <td class="colLast"> |
| <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 <code>Integer</code>.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Long></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(org.apache.calcite.linq4j.function.LongFunction1)">adapt</a></span>​(<a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function">LongFunction1</a><T1> f)</code></th> |
| <td class="colLast"> |
| <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 <code>Long</code>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <T,​R><br>java.util.List<R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adapt(T%5B%5D,org.apache.calcite.linq4j.function.Function1)">adapt</a></span>​(T[] ts, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​R> f)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code> |
| and <code>Arrays.asList(Object[])</code></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static <E> boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#all(java.util.List,org.apache.calcite.linq4j.function.Predicate1)">all</a></span>​(java.util.List<? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether <code>predicate</code> is true for all elements of |
| <code>list</code>.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static <T1,​R><br>java.util.List<R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#apply(java.util.List,org.apache.calcite.linq4j.function.Function1)">apply</a></span>​(java.util.List<T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​R> f)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a copy of a list, applying a function to each element.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T[]></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#arrayComparer()">arrayComparer</a></span>()</code></th> |
| <td class="colLast"> |
| <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> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static <T,​R><br><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constant(R)">constant</a></span>​(R r)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a 1-parameter function that always returns the same value.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static <T,​R><br><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constantNull()">constantNull</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a 1-parameter function that always returns null.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>static <E> boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#exists(java.util.List,org.apache.calcite.linq4j.function.Predicate1)">exists</a></span>​(java.util.List<? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether there is an element in <code>list</code> for which |
| <code>predicate</code> is true.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#falsePredicate1()">falsePredicate1</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>static <T1,​T2><br><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#falsePredicate2()">falsePredicate2</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A predicate with two parameters that always returns <code>false</code>.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static <E> java.util.List<E></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#filter(java.util.List,org.apache.calcite.linq4j.function.Predicate1)">filter</a></span>​(java.util.List<E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list that contains only elements of <code>list</code> that match |
| <code>predicate</code>.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>static java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#functionClass(java.lang.reflect.Type)">functionClass</a></span>​(java.lang.reflect.Type aClass)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the appropriate interface for a lambda function with |
| 1 argument and the given return type.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>static <E> java.util.List<E></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#generate(int,org.apache.calcite.linq4j.function.Function1)">generate</a></span>​(int size, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><java.lang.Integer,​E> fn)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list generated by applying a function to each index between |
| 0 and <code>size</code> - 1.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#identityComparer()">identityComparer</a></span>()</code></th> |
| <td class="colLast"> |
| <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> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,​TSource></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#identitySelector()">identitySelector</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>static <R> <a href="Function0.html" title="interface in org.apache.calcite.linq4j.function">Function0</a><R></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ignore0()">ignore0</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a function of arity 0 that does nothing.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>static <R,​T0><br><a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><R,​T0></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ignore1()">ignore1</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a function of arity 1 that does nothing.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>static <R,​T0,​T1><br><a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><R,​T0,​T1></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ignore2()">ignore2</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a function of arity 2 that does nothing.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>private static <K,​V><br>java.util.Map<V,​K></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inverse(java.util.Map)">inverse</a></span>​(java.util.Map<K,​V> map)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code>private static <K,​V><br>java.util.Map<K,​V></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#map(K,V,java.lang.Object...)">map</a></span>​(K k, |
| V v, |
| java.lang.Object... rest)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>static <T extends java.lang.Comparable<T>><br>java.util.Comparator<T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nullsComparator(boolean,boolean)">nullsComparator</a></span>​(boolean nullsFirst, |
| boolean reverse)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a <code>Comparator</code> that handles null values.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>static <T,​T2><br><a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ofTypePredicate(java.lang.Class)">ofTypePredicate</a></span>​(java.lang.Class<T2> clazz)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a predicate that returns whether an object is an instance of a |
| particular type or is null.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>static <T,​T2><br><a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#selectorComparer(org.apache.calcite.linq4j.function.Function1)">selectorComparer</a></span>​(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​T2> selector)</code></th> |
| <td class="colLast"> |
| <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> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>private static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toPredicate(org.apache.calcite.linq4j.function.Function1)">toPredicate</a></span>​(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​java.lang.Boolean> function)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a 1-parameter function to a predicate.</div> |
| </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>static <T1,​T2><br><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toPredicate(org.apache.calcite.linq4j.function.Function2)">toPredicate</a></span>​(<a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><T1,​T2,​java.lang.Boolean> function)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a 2-parameter function to a predicate.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>static <T1,​T2><br><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toPredicate2(org.apache.calcite.linq4j.function.Predicate1)">toPredicate2</a></span>​(<a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T1> p1)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,​java.lang.String></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toStringSelector()">toStringSelector</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a selector that calls the <code>Object.toString()</code> method on |
| each element.</div> |
| </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#truePredicate1()">truePredicate1</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code>static <T1,​T2><br><a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#truePredicate2()">truePredicate2</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A predicate with two parameters that always returns <code>true</code>.</div> |
| </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
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| <h4>FUNCTION_RESULT_TYPES</h4> |
| <pre>public static final java.util.Map<java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>,​java.lang.Class> FUNCTION_RESULT_TYPES</pre> |
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| <h4>FUNCTION1_CLASSES</h4> |
| <pre>private static final java.util.Map<java.lang.Class,​java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>>> FUNCTION1_CLASSES</pre> |
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| <pre>private static final java.util.Comparator NULLS_FIRST_COMPARATOR</pre> |
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| <pre>private static final java.util.Comparator NULLS_LAST_COMPARATOR</pre> |
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| <pre>private static final java.util.Comparator NULLS_LAST_REVERSE_COMPARATOR</pre> |
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| <h4>NULLS_FIRST_REVERSE_COMPARATOR</h4> |
| <pre>private static final java.util.Comparator NULLS_FIRST_REVERSE_COMPARATOR</pre> |
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| <pre>private static final <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><java.lang.Object> IDENTITY_COMPARER</pre> |
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| <pre>private static final <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><java.lang.Object[]> ARRAY_COMPARER</pre> |
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| <pre>private static final <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a> CONSTANT_NULL_FUNCTION1</pre> |
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| <pre>private static final <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a> TO_STRING_FUNCTION1</pre> |
| </li> |
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| <h4>Functions</h4> |
| <pre>private Functions()</pre> |
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| <pre class="methodSignature">private static <K,​V> java.util.Map<K,​V> map​(K k, |
| V v, |
| java.lang.Object... rest)</pre> |
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| <div class="block">Returns a 1-parameter function that always returns the same value.</div> |
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| <div class="block">Returns a 1-parameter function that always returns null.</div> |
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| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - First parameter type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Predicate that always returns true</dd> |
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| <div class="block">A predicate with one parameter that always returns <code>true</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - First parameter type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Predicate that always returns true</dd> |
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| <div class="block">A predicate with two parameters that always returns <code>true</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T1</code> - First parameter type</dd> |
| <dd><code>T2</code> - Second parameter type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Predicate that always returns true</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="falsePredicate2()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>falsePredicate2</h4> |
| <pre class="methodSignature">public static <T1,​T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2> falsePredicate2()</pre> |
| <div class="block">A predicate with two parameters that always returns <code>false</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T1</code> - First parameter type</dd> |
| <dd><code>T2</code> - Second parameter type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Predicate that always returns false</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="identitySelector()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identitySelector</h4> |
| <pre class="methodSignature">public static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,​TSource> identitySelector()</pre> |
| </li> |
| </ul> |
| <a id="toStringSelector()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toStringSelector</h4> |
| <pre class="methodSignature">public static <TSource> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><TSource,​java.lang.String> toStringSelector()</pre> |
| <div class="block">Returns a selector that calls the <code>Object.toString()</code> method on |
| each element.</div> |
| </li> |
| </ul> |
| <a id="ofTypePredicate(java.lang.Class)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ofTypePredicate</h4> |
| <pre class="methodSignature">public static <T,​T2> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T> ofTypePredicate​(java.lang.Class<T2> clazz)</pre> |
| <div class="block">Creates a predicate that returns whether an object is an instance of a |
| particular type or is null.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Type of objects to test</dd> |
| <dd><code>T2</code> - Desired type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>clazz</code> - Desired type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Predicate that tests for desired type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="toPredicate2(org.apache.calcite.linq4j.function.Predicate1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toPredicate2</h4> |
| <pre class="methodSignature">public static <T1,​T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2> toPredicate2​(<a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T1> p1)</pre> |
| </li> |
| </ul> |
| <a id="toPredicate(org.apache.calcite.linq4j.function.Function2)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toPredicate</h4> |
| <pre class="methodSignature">public static <T1,​T2> <a href="Predicate2.html" title="interface in org.apache.calcite.linq4j.function">Predicate2</a><T1,​T2> toPredicate​(<a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><T1,​T2,​java.lang.Boolean> function)</pre> |
| <div class="block">Converts a 2-parameter function to a predicate.</div> |
| </li> |
| </ul> |
| <a id="toPredicate(org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toPredicate</h4> |
| <pre class="methodSignature">private static <T> <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><T> toPredicate​(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​java.lang.Boolean> function)</pre> |
| <div class="block">Converts a 1-parameter function to a predicate.</div> |
| </li> |
| </ul> |
| <a id="functionClass(java.lang.reflect.Type)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>functionClass</h4> |
| <pre class="methodSignature">public static java.lang.Class<? extends <a href="Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>> functionClass​(java.lang.reflect.Type aClass)</pre> |
| <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> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>aClass</code> - Return type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Function class</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="adapt(org.apache.calcite.linq4j.function.IntegerFunction1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">public static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Integer> adapt​(<a href="IntegerFunction1.html" title="interface in org.apache.calcite.linq4j.function">IntegerFunction1</a><T1> f)</pre> |
| <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 <code>Integer</code>.</div> |
| </li> |
| </ul> |
| <a id="adapt(org.apache.calcite.linq4j.function.DoubleFunction1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">public static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Double> adapt​(<a href="DoubleFunction1.html" title="interface in org.apache.calcite.linq4j.function">DoubleFunction1</a><T1> f)</pre> |
| <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 <code>Double</code>.</div> |
| </li> |
| </ul> |
| <a id="adapt(org.apache.calcite.linq4j.function.LongFunction1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">public static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Long> adapt​(<a href="LongFunction1.html" title="interface in org.apache.calcite.linq4j.function">LongFunction1</a><T1> f)</pre> |
| <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 <code>Long</code>.</div> |
| </li> |
| </ul> |
| <a id="adapt(org.apache.calcite.linq4j.function.FloatFunction1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">public static <T1> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​java.lang.Float> adapt​(<a href="FloatFunction1.html" title="interface in org.apache.calcite.linq4j.function">FloatFunction1</a><T1> f)</pre> |
| <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 <code>Float</code>.</div> |
| </li> |
| </ul> |
| <a id="adapt(java.util.List,org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">@Deprecated |
| public static <T1,​R> java.util.List<R> adapt​(java.util.List<T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​R> f)</pre> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">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> |
| </li> |
| </ul> |
| <a id="adapt(java.lang.Object[],org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a><a id="adapt(T[],org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adapt</h4> |
| <pre class="methodSignature">@Deprecated |
| public static <T,​R> java.util.List<R> adapt​(T[] ts, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​R> f)</pre> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Use <code>Lists.transform(java.util.List<F>, com.google.common.base.Function<? super F, ? extends T>)</code> |
| and <code>Arrays.asList(Object[])</code></div> |
| </div> |
| <div class="block">Creates a view of an array that applies a function to each element.</div> |
| </li> |
| </ul> |
| <a id="apply(java.util.List,org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>apply</h4> |
| <pre class="methodSignature">public static <T1,​R> java.util.List<R> apply​(java.util.List<T1> list, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T1,​R> f)</pre> |
| <div class="block">Creates a copy of a list, applying a function to each element.</div> |
| </li> |
| </ul> |
| <a id="filter(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>filter</h4> |
| <pre class="methodSignature">public static <E> java.util.List<E> filter​(java.util.List<E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</pre> |
| <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> |
| </li> |
| </ul> |
| <a id="exists(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>exists</h4> |
| <pre class="methodSignature">public static <E> boolean exists​(java.util.List<? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</pre> |
| <div class="block">Returns whether there is an element in <code>list</code> for which |
| <code>predicate</code> is true.</div> |
| </li> |
| </ul> |
| <a id="all(java.util.List,org.apache.calcite.linq4j.function.Predicate1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>all</h4> |
| <pre class="methodSignature">public static <E> boolean all​(java.util.List<? extends E> list, |
| <a href="Predicate1.html" title="interface in org.apache.calcite.linq4j.function">Predicate1</a><E> predicate)</pre> |
| <div class="block">Returns whether <code>predicate</code> is true for all elements of |
| <code>list</code>.</div> |
| </li> |
| </ul> |
| <a id="generate(int,org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generate</h4> |
| <pre class="methodSignature">public static <E> java.util.List<E> generate​(int size, |
| <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><java.lang.Integer,​E> fn)</pre> |
| <div class="block">Returns a list generated by applying a function to each index between |
| 0 and <code>size</code> - 1.</div> |
| </li> |
| </ul> |
| <a id="ignore0()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ignore0</h4> |
| <pre class="methodSignature">public static <R> <a href="Function0.html" title="interface in org.apache.calcite.linq4j.function">Function0</a><R> ignore0()</pre> |
| <div class="block">Returns a function of arity 0 that does nothing.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>R</code> - Return type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="ignore1()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ignore1</h4> |
| <pre class="methodSignature">public static <R,​T0> <a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><R,​T0> ignore1()</pre> |
| <div class="block">Returns a function of arity 1 that does nothing.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>R</code> - Return type</dd> |
| <dd><code>T0</code> - Type of parameter 0</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="ignore2()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ignore2</h4> |
| <pre class="methodSignature">public static <R,​T0,​T1> <a href="Function2.html" title="interface in org.apache.calcite.linq4j.function">Function2</a><R,​T0,​T1> ignore2()</pre> |
| <div class="block">Returns a function of arity 2 that does nothing.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></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><span class="returnLabel">Returns:</span></dt> |
| <dd>Function that does nothing.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="nullsComparator(boolean,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>nullsComparator</h4> |
| <pre class="methodSignature">public static <T extends java.lang.Comparable<T>> java.util.Comparator<T> nullsComparator​(boolean nullsFirst, |
| boolean reverse)</pre> |
| <div class="block">Returns a <code>Comparator</code> that handles null values.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>nullsFirst</code> - Whether nulls come before all other values</dd> |
| <dd><code>reverse</code> - Whether to reverse the usual order of <code>Comparable</code>s</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="identityComparer()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identityComparer</h4> |
| <pre class="methodSignature">public static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T> identityComparer()</pre> |
| <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> |
| </li> |
| </ul> |
| <a id="arrayComparer()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>arrayComparer</h4> |
| <pre class="methodSignature">public static <T> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T[]> arrayComparer()</pre> |
| <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> |
| </li> |
| </ul> |
| <a id="selectorComparer(org.apache.calcite.linq4j.function.Function1)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>selectorComparer</h4> |
| <pre class="methodSignature">public static <T,​T2> <a href="EqualityComparer.html" title="interface in org.apache.calcite.linq4j.function">EqualityComparer</a><T> selectorComparer​(<a href="Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a><T,​T2> selector)</pre> |
| <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> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
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