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<div class="subTitle">org.apache.calcite.sql.parser</div>
<h2 title="类 Span" class="title">类 Span</h2>
</div>
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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.parser.Span</li>
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<pre>public final class <span class="typeNameLabel">Span</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">Builder for <a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类"><code>SqlParserPos</code></a>.
<p>Because it is mutable, it is convenient for keeping track of the
positions of the tokens that go into a non-terminal. It can be passed
into methods, which can add the positions of tokens consumed to it.
<p>Some patterns:
<ul>
<li><code>final Span s;</code> declaration of a Span at the top of a production
<li><code>s = span();</code> initializes s to a Span that includes the token we
just saw; very often occurs immediately after the first token in the
production
<li><code>s.end(this);</code> adds the most recent token to span s and evaluates
to a SqlParserPosition that spans from beginning to end; commonly used
when making a call to a function
<li><code>s.pos()</code> returns a position spanning all tokens in the list
<li><code>s.add(node);</code> adds a SqlNode's parser position to a span
<li><code>s.addAll(nodeList);</code> adds several SqlNodes' parser positions to
a span
<li><code>s = Span.of();</code> initializes s to an empty Span, not even
including the most recent token; rarely used
</ul></div>
</li>
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<h3>方法概要</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释">
<caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></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="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">限定符和类型</th>
<th class="colLast" scope="col">方法和说明</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#add-org.apache.calcite.sql.parser.SqlAbstractParserImpl-">add</a></span>(org.apache.calcite.sql.parser.SqlAbstractParserImpl&nbsp;parser)</code>
<div class="block">Adds the position of the last token emitted by a parser to the list,
and returns this Span.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#add-org.apache.calcite.sql.SqlNode-">add</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</code>
<div class="block">Adds a node's position to the list,
and returns this Span.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#add-org.apache.calcite.sql.parser.SqlParserPos-">add</a></span>(<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">Adds a position to the list,
and returns this Span.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#addAll-java.lang.Iterable-">addAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="java.lang中的类或接口">Iterable</a>&lt;? extends <a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;&nbsp;nodes)</code>
<div class="block">Adds the positions of a collection of nodes to the list,
and returns this Span.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#addIf-org.apache.calcite.sql.SqlNode-">addIf</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</code>
<div class="block">Adds a node's position to the list if the node is not null,
and returns this Span.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#clear--">clear</a></span>()</code>
<div class="block">Clears the contents of this Span, and returns this Span.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<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/parser/Span.html#end-org.apache.calcite.sql.parser.SqlAbstractParserImpl-">end</a></span>(org.apache.calcite.sql.parser.SqlAbstractParserImpl&nbsp;parser)</code>
<div class="block">Adds the position of the last token emitted by a parser to the list,
and returns a position that covers the whole range.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<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/parser/Span.html#end-org.apache.calcite.sql.SqlNode-">end</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</code>
<div class="block">Adds a node's position to the list,
and returns a position that covers the whole range.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#of--">of</a></span>()</code>
<div class="block">Creates an empty Span.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#of-java.util.Collection-">of</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="java.util中的类或接口">Collection</a>&lt;? extends <a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;&nbsp;nodes)</code>
<div class="block">Creates a Span of a list of nodes.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#of-org.apache.calcite.sql.SqlNode-">of</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</code>
<div class="block">Creates a Span of one node.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#of-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">of</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n0,
<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n1)</code>
<div class="block">Creates a Span between two nodes.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/parser/Span.html#of-org.apache.calcite.sql.parser.SqlParserPos-">of</a></span>(<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;p)</code>
<div class="block">Creates a Span with one position.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<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/parser/Span.html#pos--">pos</a></span>()</code>
<div class="block">Returns a position spanning the earliest position to the latest.</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>
</ul>
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<h3>方法详细资料</h3>
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<h4>of</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;of()</pre>
<div class="block">Creates an empty Span.</div>
</li>
</ul>
<a name="of-org.apache.calcite.sql.parser.SqlParserPos-">
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<h4>of</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;of(<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;p)</pre>
<div class="block">Creates a Span with one position.</div>
</li>
</ul>
<a name="of-org.apache.calcite.sql.SqlNode-">
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<h4>of</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;of(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</pre>
<div class="block">Creates a Span of one node.</div>
</li>
</ul>
<a name="of-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">
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</a>
<ul class="blockList">
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<h4>of</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;of(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n0,
<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n1)</pre>
<div class="block">Creates a Span between two nodes.</div>
</li>
</ul>
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<h4>of</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;of(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="java.util中的类或接口">Collection</a>&lt;? extends <a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;&nbsp;nodes)</pre>
<div class="block">Creates a Span of a list of nodes.</div>
</li>
</ul>
<a name="add-org.apache.calcite.sql.SqlNode-">
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<ul class="blockList">
<li class="blockList">
<h4>add</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;add(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</pre>
<div class="block">Adds a node's position to the list,
and returns this Span.</div>
</li>
</ul>
<a name="addIf-org.apache.calcite.sql.SqlNode-">
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<ul class="blockList">
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<h4>addIf</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;addIf(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</pre>
<div class="block">Adds a node's position to the list if the node is not null,
and returns this Span.</div>
</li>
</ul>
<a name="add-org.apache.calcite.sql.parser.SqlParserPos-">
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<h4>add</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;add(<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">Adds a position to the list,
and returns this Span.</div>
</li>
</ul>
<a name="addAll-java.lang.Iterable-">
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<h4>addAll</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;addAll(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="java.lang中的类或接口">Iterable</a>&lt;? extends <a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;&nbsp;nodes)</pre>
<div class="block">Adds the positions of a collection of nodes to the list,
and returns this Span.</div>
</li>
</ul>
<a name="add-org.apache.calcite.sql.parser.SqlAbstractParserImpl-">
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<h4>add</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;add(org.apache.calcite.sql.parser.SqlAbstractParserImpl&nbsp;parser)</pre>
<div class="block">Adds the position of the last token emitted by a parser to the list,
and returns this Span.</div>
</li>
</ul>
<a name="pos--">
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<h4>pos</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;pos()</pre>
<div class="block">Returns a position spanning the earliest position to the latest.
Does not assume that the positions are sorted.
Throws if the list is empty.</div>
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<h4>end</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;end(org.apache.calcite.sql.parser.SqlAbstractParserImpl&nbsp;parser)</pre>
<div class="block">Adds the position of the last token emitted by a parser to the list,
and returns a position that covers the whole range.</div>
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<h4>end</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;end(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;n)</pre>
<div class="block">Adds a node's position to the list,
and returns a position that covers the whole range.</div>
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<h4>clear</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/parser/Span.html" title="org.apache.calcite.sql.parser中的类">Span</a>&nbsp;clear()</pre>
<div class="block">Clears the contents of this Span, and returns this Span.</div>
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