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<h2 title="Class Options.HandleOpt" class="title">Class Options.HandleOpt</h2>
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<li>org.apache.hadoop.fs.Options.HandleOpt</li>
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<dd><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Data.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Data</a>, <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Location.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Location</a></dd>
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<dd><a href="../../../../org/apache/hadoop/fs/Options.html" title="class in org.apache.hadoop.fs">Options</a></dd>
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<pre>public static class <span class="typeNameLabel">Options.HandleOpt</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Options for creating <a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs"><code>PathHandle</code></a> references.</div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Data.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Data</a></span></code>
<div class="block">Option storing standard constraints on data.</div>
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<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Location.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Location</a></span></code>
<div class="block">Option storing standard constraints on location.</div>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#HandleOpt--">HandleOpt</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Data.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Data</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#changed-boolean-">changed</a></span>(boolean&nbsp;allow)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#content--">content</a></span>()</code>
<div class="block">Handle is valid iff the content of the referent is the same.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#exact--">exact</a></span>()</code>
<div class="block">Handle is valid iff the referent is neither moved nor changed.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static &lt;T extends <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>&gt;<br><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#getOpt-java.lang.Class-org.apache.hadoop.fs.Options.HandleOpt...-">getOpt</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;c,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</code>
<div class="block">Utility method to extract a HandleOpt from the set provided.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Location.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Location</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#moved-boolean-">moved</a></span>(boolean&nbsp;allow)</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#path--">path</a></span>()</code>
<div class="block">Handle is valid iff the referent is unmoved in the namespace.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#reference--">reference</a></span>()</code>
<div class="block">Handle is valid iff the referent exists in the namespace.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#resolve-java.util.function.BiFunction-org.apache.hadoop.fs.Options.HandleOpt...-">resolve</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/BiFunction.html?is-external=true" title="class or interface in java.util.function">BiFunction</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[],<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;&nbsp;fsr,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</code>
<div class="block">Utility function for partial evaluation of <a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs"><code>FileStatus</code></a>
instances to a fixed set of handle options.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html#resolve-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Options.HandleOpt...-">resolve</a></span>(<a href="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</a>&nbsp;fs,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</code>
<div class="block">Utility function for mapping <a href="../../../../org/apache/hadoop/fs/FileSystem.html#getPathHandle-org.apache.hadoop.fs.FileStatus-org.apache.hadoop.fs.Options.HandleOpt...-"><code>FileSystem.getPathHandle(org.apache.hadoop.fs.FileStatus, org.apache.hadoop.fs.Options.HandleOpt...)</code></a> to a
fixed set of handle options.</div>
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<h3>Constructor Detail</h3>
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<h4>HandleOpt</h4>
<pre>protected&nbsp;HandleOpt()</pre>
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<h4>resolve</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;&nbsp;resolve(<a href="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</a>&nbsp;fs,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</pre>
<div class="block">Utility function for mapping <a href="../../../../org/apache/hadoop/fs/FileSystem.html#getPathHandle-org.apache.hadoop.fs.FileStatus-org.apache.hadoop.fs.Options.HandleOpt...-"><code>FileSystem.getPathHandle(org.apache.hadoop.fs.FileStatus, org.apache.hadoop.fs.Options.HandleOpt...)</code></a> to a
fixed set of handle options.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>fs</code> - Target filesystem</dd>
<dd><code>opt</code> - Options to bind in partially evaluated function</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Function reference with options fixed</dd>
</dl>
</li>
</ul>
<a name="resolve-java.util.function.BiFunction-org.apache.hadoop.fs.Options.HandleOpt...-">
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<h4>resolve</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;&nbsp;resolve(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/BiFunction.html?is-external=true" title="class or interface in java.util.function">BiFunction</a>&lt;<a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>,<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[],<a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs">PathHandle</a>&gt;&nbsp;fsr,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</pre>
<div class="block">Utility function for partial evaluation of <a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs"><code>FileStatus</code></a>
instances to a fixed set of handle options.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>fsr</code> - Function reference</dd>
<dd><code>opt</code> - Options to associate with <a href="../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs"><code>FileStatus</code></a> instances to
produce <a href="../../../../org/apache/hadoop/fs/PathHandle.html" title="interface in org.apache.hadoop.fs"><code>PathHandle</code></a> instances.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Function reference with options fixed</dd>
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<h4>exact</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]&nbsp;exact()</pre>
<div class="block">Handle is valid iff the referent is neither moved nor changed.
Equivalent to changed(false), moved(false).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Options requiring that the content and location of the entity
be unchanged between calls.</dd>
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<h4>content</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]&nbsp;content()</pre>
<div class="block">Handle is valid iff the content of the referent is the same.
Equivalent to changed(false), moved(true).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Options requiring that the content of the entity is unchanged,
but it may be at a different location.</dd>
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<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]&nbsp;path()</pre>
<div class="block">Handle is valid iff the referent is unmoved in the namespace.
Equivalent to changed(true), moved(false).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Options requiring that the referent exist in the same location,
but its content may have changed.</dd>
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<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>[]&nbsp;reference()</pre>
<div class="block">Handle is valid iff the referent exists in the namespace.
Equivalent to changed(true), moved(true).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Options requiring that the implementation resolve a reference
to this entity regardless of changes to content or location.</dd>
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<h4>changed</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Data.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Data</a>&nbsp;changed(boolean&nbsp;allow)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>allow</code> - If true, resolve references to this entity even if it has
been modified.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Handle option encoding parameter.</dd>
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<h4>moved</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.Location.html" title="class in org.apache.hadoop.fs">Options.HandleOpt.Location</a>&nbsp;moved(boolean&nbsp;allow)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>allow</code> - If true, resolve references to this entity anywhere in
the namespace.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Handle option encoding parameter.</dd>
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<h4>getOpt</h4>
<pre>public static&nbsp;&lt;T extends <a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&nbsp;getOpt(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;c,
<a href="../../../../org/apache/hadoop/fs/Options.HandleOpt.html" title="class in org.apache.hadoop.fs">Options.HandleOpt</a>...&nbsp;opt)</pre>
<div class="block">Utility method to extract a HandleOpt from the set provided.</div>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Type constraint for exact match</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>c</code> - Target class</dd>
<dd><code>opt</code> - List of options</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An option assignable from the specified type or null if either
opt is null or a suitable match is not found.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If more than one matching type is found.</dd>
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