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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.model</a></div> |
| <h1 title="Class JsonFunction" class="title">Class JsonFunction</h1> |
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| <div class="inheritance">org.apache.calcite.model.JsonFunction</div> |
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| <section class="description"> |
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| <pre>public class <span class="typeNameLabel">JsonFunction</span> |
| extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre> |
| <div class="block">Function schema element.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="JsonRoot.html" title="class in org.apache.calcite.model"><code>Description of schema elements</code></a></dd> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#className">className</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Name of the class that implements this function.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#methodName">methodName</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Name of the method that implements this function.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#name">name</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Name of this function.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#path">path</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Path for resolving this function.</div> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">JsonFunction</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#accept(org.apache.calcite.model.ModelHandler)">accept</a></span>​(<a href="ModelHandler.html" title="class in org.apache.calcite.model">ModelHandler</a> handler)</code></th> |
| <td class="colLast"> </td> |
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| <h3><a id="name">name</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">name</span></div> |
| <div class="block">Name of this function. |
| |
| <p>Required.</div> |
| </section> |
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| <h3><a id="className">className</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">className</span></div> |
| <div class="block">Name of the class that implements this function. |
| |
| <p>Required.</div> |
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| <h3><a id="methodName">methodName</a></h3> |
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| <div class="block">Name of the method that implements this function. |
| |
| <p>Optional. |
| |
| <p>If specified, the method must exist (case-sensitive) and Calcite |
| will create a scalar function. The method may be static or non-static, but |
| if non-static, the class must have a public constructor with no parameters. |
| |
| <p>If "*", Calcite creates a function for every method |
| in this class. |
| |
| <p>If not specified, Calcite looks for a method called "eval", and |
| if found, creates a a table macro or scalar function. |
| It also looks for methods "init", "add", "merge", "result", and |
| if found, creates an aggregate function.</div> |
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| <div class="block">Path for resolving this function. |
| |
| <p>Optional.</div> |
| </section> |
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