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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.util</a></div>
<h1 title="Interface Source" class="title">Interface Source</h1>
</div>
<section class="class-description" id="class-description">
<hr>
<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">Source</span></div>
<div class="block">Source of data.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== 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-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract 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-tab2 method-summary-table-tab3"><code><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#append(org.apache.calcite.util.Source)" class="member-name-link">append</a><wbr>(<a href="Source.html" title="interface in org.apache.calcite.util">Source</a>&nbsp;child)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns a source whose path concatenates this with a child.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/File.html" title="class or interface in java.io" class="external-link">File</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#file()" class="member-name-link">file</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/InputStream.html" title="class or interface in java.io" class="external-link">InputStream</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#openStream()" class="member-name-link">openStream</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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 odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#path()" class="member-name-link">path</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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-tab2 method-summary-table-tab3"><code><a href="#protocol()" class="member-name-link">protocol</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/Reader.html" title="class or interface in java.io" class="external-link">Reader</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#reader()" class="member-name-link">reader</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#relative(org.apache.calcite.util.Source)" class="member-name-link">relative</a><wbr>(<a href="Source.html" title="interface in org.apache.calcite.util">Source</a>&nbsp;source)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns a relative source, if this source is a child of a given base.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#trim(java.lang.String)" class="member-name-link">trim</a><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>&nbsp;suffix)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Looks for a suffix on a path and returns
either the path with the suffix removed
or the original path.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>@Nullable <a href="Source.html" title="interface in org.apache.calcite.util">Source</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#trimOrNull(java.lang.String)" class="member-name-link">trimOrNull</a><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>&nbsp;suffix)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Looks for a suffix on a path and returns
either the path with the suffix removed
or null.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URL.html" title="class or interface in java.net" class="external-link">URL</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#url()" class="member-name-link">url</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
</div>
</div>
</div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="url()">
<h3>url</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URL.html" title="class or interface in java.net" class="external-link">URL</a></span>&nbsp;<span class="element-name">url</span>()</div>
</section>
</li>
<li>
<section class="detail" id="file()">
<h3>file</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/File.html" title="class or interface in java.io" class="external-link">File</a></span>&nbsp;<span class="element-name">file</span>()</div>
</section>
</li>
<li>
<section class="detail" id="path()">
<h3>path</h3>
<div class="member-signature"><span class="return-type"><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>&nbsp;<span class="element-name">path</span>()</div>
</section>
</li>
<li>
<section class="detail" id="reader()">
<h3>reader</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/Reader.html" title="class or interface in java.io" class="external-link">Reader</a></span>&nbsp;<span class="element-name">reader</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="openStream()">
<h3>openStream</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/InputStream.html" title="class or interface in java.io" class="external-link">InputStream</a></span>&nbsp;<span class="element-name">openStream</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="protocol()">
<h3>protocol</h3>
<div class="member-signature"><span class="return-type"><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>&nbsp;<span class="element-name">protocol</span>()</div>
</section>
</li>
<li>
<section class="detail" id="trim(java.lang.String)">
<h3>trim</h3>
<div class="member-signature"><span class="return-type"><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></span>&nbsp;<span class="element-name">trim</span><wbr><span class="parameters">(<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>&nbsp;suffix)</span></div>
<div class="block">Looks for a suffix on a path and returns
either the path with the suffix removed
or the original path.</div>
</section>
</li>
<li>
<section class="detail" id="trimOrNull(java.lang.String)">
<h3>trimOrNull</h3>
<div class="member-signature"><span class="return-type">@Nullable <a href="Source.html" title="interface in org.apache.calcite.util">Source</a></span>&nbsp;<span class="element-name">trimOrNull</span><wbr><span class="parameters">(<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>&nbsp;suffix)</span></div>
<div class="block">Looks for a suffix on a path and returns
either the path with the suffix removed
or null.</div>
</section>
</li>
<li>
<section class="detail" id="append(org.apache.calcite.util.Source)">
<h3>append</h3>
<div class="member-signature"><span class="return-type"><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></span>&nbsp;<span class="element-name">append</span><wbr><span class="parameters">(<a href="Source.html" title="interface in org.apache.calcite.util">Source</a>&nbsp;child)</span></div>
<div class="block">Returns a source whose path concatenates this with a child.
<p>For example,
<ul>
<li>source("/foo").append(source("bar"))
returns source("/foo/bar")
<li>source("/foo").append(source("/bar"))
returns source("/bar")
because "/bar" was already absolute
</ul></div>
</section>
</li>
<li>
<section class="detail" id="relative(org.apache.calcite.util.Source)">
<h3>relative</h3>
<div class="member-signature"><span class="return-type"><a href="Source.html" title="interface in org.apache.calcite.util">Source</a></span>&nbsp;<span class="element-name">relative</span><wbr><span class="parameters">(<a href="Source.html" title="interface in org.apache.calcite.util">Source</a>&nbsp;source)</span></div>
<div class="block">Returns a relative source, if this source is a child of a given base.
<p>For example,
<ul>
<li>source("/foo/bar").relative(source("/foo"))
returns source("bar")
<li>source("/baz/bar").relative(source("/foo"))
returns source("/baz/bar")
</ul></div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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