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<div class="subTitle">org.apache.calcite.sql</div>
<h2 title="类 SqlTypeNameSpec" class="title">类 SqlTypeNameSpec</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li>
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<li>org.apache.calcite.sql.SqlTypeNameSpec</li>
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<dl>
<dt>直接已知子类:</dt>
<dd><a href="../../../../org/apache/calcite/sql/SqlBasicTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlBasicTypeNameSpec</a>, <a href="../../../../org/apache/calcite/sql/SqlCollectionTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlCollectionTypeNameSpec</a>, <a href="../../../../org/apache/calcite/sql/SqlRowTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlRowTypeNameSpec</a>, <a href="../../../../org/apache/calcite/sql/SqlUserDefinedTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlUserDefinedTypeNameSpec</a></dd>
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<pre>public abstract class <span class="typeNameLabel">SqlTypeNameSpec</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></pre>
<div class="block">A <code>SqlTypeNameSpec</code> is a type name specification that allows user to
customize sql node unparsing and data type deriving.
<p>To customize sql node unparsing, override the method
<a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#unparse-org.apache.calcite.sql.SqlWriter-int-int-"><code>unparse(SqlWriter, int, int)</code></a>.
<p>To customize data type deriving, override the method
<a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#deriveType-org.apache.calcite.sql.validate.SqlValidator-"><code>deriveType(SqlValidator)</code></a>.</div>
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<h3>构造器概要</h3>
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<th class="colOne" scope="col">构造器和说明</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#SqlTypeNameSpec-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.parser.SqlParserPos-">SqlTypeNameSpec</a></span>(<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;name,
<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>
<div class="block">Creates a <code>SqlTypeNameSpec</code>.</div>
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<h3>方法概要</h3>
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<caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">限定符和类型</th>
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<td class="colFirst"><code>abstract <a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#deriveType-org.apache.calcite.sql.validate.SqlValidator-">deriveType</a></span>(<a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator)</code>
<div class="block">Derive type from this SqlTypeNameSpec.</div>
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<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#equalsDeep-org.apache.calcite.sql.SqlTypeNameSpec-org.apache.calcite.util.Litmus-">equalsDeep</a></span>(<a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlTypeNameSpec</a>&nbsp;spec,
<a href="../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a>&nbsp;litmus)</code>
<div class="block">Returns whether this spec is structurally equivalent to another spec.</div>
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<td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#getParserPos--">getParserPos</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#getTypeName--">getTypeName</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html#unparse-org.apache.calcite.sql.SqlWriter-int-int-">unparse</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
int&nbsp;leftPrec,
int&nbsp;rightPrec)</code>
<div class="block">Writes a SQL representation of this spec to a writer.</div>
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<h3>从类继承的方法&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li>
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<h3>构造器详细资料</h3>
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<h4>SqlTypeNameSpec</h4>
<pre>public&nbsp;SqlTypeNameSpec(<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;name,
<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</pre>
<div class="block">Creates a <code>SqlTypeNameSpec</code>.</div>
<dl>
<dt><span class="paramLabel">参数:</span></dt>
<dd><code>name</code> - Name of the type</dd>
<dd><code>pos</code> - Parser position, must not be null</dd>
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<h3>方法详细资料</h3>
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<h4>deriveType</h4>
<pre>public abstract&nbsp;<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>&nbsp;deriveType(<a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator)</pre>
<div class="block">Derive type from this SqlTypeNameSpec.</div>
<dl>
<dt><span class="paramLabel">参数:</span></dt>
<dd><code>validator</code> - The sql validator</dd>
<dt><span class="returnLabel">返回:</span></dt>
<dd>the <code>RelDataType</code> instance, throws exception if we could not
deduce the type</dd>
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<h4>unparse</h4>
<pre>public abstract&nbsp;void&nbsp;unparse(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
int&nbsp;leftPrec,
int&nbsp;rightPrec)</pre>
<div class="block">Writes a SQL representation of this spec to a writer.</div>
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<h4>equalsDeep</h4>
<pre>public abstract&nbsp;boolean&nbsp;equalsDeep(<a href="../../../../org/apache/calcite/sql/SqlTypeNameSpec.html" title="org.apache.calcite.sql中的类">SqlTypeNameSpec</a>&nbsp;spec,
<a href="../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a>&nbsp;litmus)</pre>
<div class="block">Returns whether this spec is structurally equivalent to another spec.</div>
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<h4>getParserPos</h4>
<pre>public&nbsp;<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;getParserPos()</pre>
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<h4>getTypeName</h4>
<pre>public&nbsp;<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;getTypeName()</pre>
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