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apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-yarn / hadoop-yarn-common / apidocs / org / apache / hadoop / yarn / webapp / View.html
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<div class="subTitle">org.apache.hadoop.yarn.webapp</div>
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<dd><a href="../../../../../org/apache/hadoop/yarn/webapp/view/TextView.html" title="class in org.apache.hadoop.yarn.webapp.view">TextView</a></dd>
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<pre>@InterfaceAudience.LimitedPrivate(value={"YARN","MapReduce"})
public abstract class <span class="typeNameLabel">View</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>
implements <a href="../../../../../org/apache/hadoop/yarn/webapp/Params.html" title="interface in org.apache.hadoop.yarn.webapp">Params</a></pre>
<div class="block">Base class for all views</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/yarn/webapp/View.ViewContext.html" title="class in org.apache.hadoop.yarn.webapp">View.ViewContext</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static org.slf4j.Logger</code></td>
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<code><a href="../../../../../org/apache/hadoop/yarn/webapp/Params.html#ERROR_DETAILS">ERROR_DETAILS</a>, <a href="../../../../../org/apache/hadoop/yarn/webapp/Params.html#TITLE">TITLE</a>, <a href="../../../../../org/apache/hadoop/yarn/webapp/Params.html#TITLE_LINK">TITLE_LINK</a>, <a href="../../../../../org/apache/hadoop/yarn/webapp/Params.html#USER">USER</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#View--">View</a></span>()</code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#View-org.apache.hadoop.yarn.webapp.View.ViewContext-">View</a></span>(<a href="../../../../../org/apache/hadoop/yarn/webapp/View.ViewContext.html" title="class in org.apache.hadoop.yarn.webapp">View.ViewContext</a>&nbsp;ctx)</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#Z:Z:D-java.lang.String-">$</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key)</code>
<div class="block">Lookup a value from the current context</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#Z:Z:D-java.lang.String-java.lang.String-">$</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;defaultValue)</code>
<div class="block">Lookup a value from the current context.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/yarn/webapp/View.ViewContext.html" title="class in org.apache.hadoop.yarn.webapp">View.ViewContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#context--">context</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,javax.servlet.http.Cookie&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#cookies--">cookies</a></span>()</code>
<div class="block">Get the cookies</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#error--">error</a></span>()</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#getInstance-java.lang.Class-">getInstance</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;cls)</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#inDevMode--">inDevMode</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/yarn/webapp/ResponseInfo.html" title="class in org.apache.hadoop.yarn.webapp">ResponseInfo</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#info-java.lang.String-">info</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;about)</code>&nbsp;</td>
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<td class="colFirst"><code>com.google.inject.Injector</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#injector--">injector</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#moreParams--">moreParams</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>javax.servlet.ServletOutputStream</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#outputStream--">outputStream</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#prefix--">prefix</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/hadoop/yarn/webapp/View.html#render--">render</a></span>()</code>
<div class="block">The API to render the view</div>
</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#render-java.lang.Class-">render</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;? extends <a href="../../../../../org/apache/hadoop/yarn/webapp/SubView.html" title="interface in org.apache.hadoop.yarn.webapp">SubView</a>&gt;&nbsp;cls)</code>
<div class="block">Render a sub-view</div>
</td>
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<tr id="i14" class="altColor">
<td class="colFirst"><code>javax.servlet.http.HttpServletRequest</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#request--">request</a></span>()</code>&nbsp;</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>javax.servlet.http.HttpServletResponse</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#response--">response</a></span>()</code>&nbsp;</td>
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<tr id="i16" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#root_url-java.lang.String...-">root_url</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;parts)</code>
<div class="block">Create an url from url components</div>
</td>
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<tr id="i17" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#root--">root</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#set-java.lang.String-java.lang.String-">set</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;value)</code>
<div class="block">Set a context value.</div>
</td>
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<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#setTitle-java.lang.String-">setTitle</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;title)</code>&nbsp;</td>
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<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#setTitle-java.lang.String-java.lang.String-">setTitle</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;title,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;url)</code>&nbsp;</td>
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<tr id="i21" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#status--">status</a></span>()</code>&nbsp;</td>
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<tr id="i22" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#url-java.lang.String...-">url</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;parts)</code>
<div class="block">Create an url from url components</div>
</td>
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<tr id="i23" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/PrintWriter.html?is-external=true" title="class or interface in java.io">PrintWriter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/yarn/webapp/View.html#writer--">writer</a></span>()</code>&nbsp;</td>
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<pre>public&nbsp;View()</pre>
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<pre>public&nbsp;View(<a href="../../../../../org/apache/hadoop/yarn/webapp/View.ViewContext.html" title="class in org.apache.hadoop.yarn.webapp">View.ViewContext</a>&nbsp;ctx)</pre>
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<pre>public abstract&nbsp;void&nbsp;render()</pre>
<div class="block">The API to render the view</div>
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<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/yarn/webapp/View.ViewContext.html" title="class in org.apache.hadoop.yarn.webapp">View.ViewContext</a>&nbsp;context()</pre>
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<pre>public&nbsp;com.google.inject.Injector&nbsp;injector()</pre>
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<pre>public&nbsp;javax.servlet.http.HttpServletResponse&nbsp;response()</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;moreParams()</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,javax.servlet.http.Cookie&gt;&nbsp;cookies()</pre>
<div class="block">Get the cookies</div>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;$(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
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<div class="block">Lookup a value from the current context.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - to lookup</dd>
<dd><code>defaultValue</code> - if key is missing</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the value of the key or the default value</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;$(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key)</pre>
<div class="block">Lookup a value from the current context</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - to lookup</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the value of the key or empty string</dd>
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<div class="block">Set a context value. (e.g. UI properties for sub views.)
Try to avoid any application (vs view/ui) logic.</div>
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<dd><code>key</code> - to set</dd>
<dd><code>value</code> - to set</dd>
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<pre>public&nbsp;void&nbsp;setTitle(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;title,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;url)</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;root_url(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;parts)</pre>
<div class="block">Create an url from url components</div>
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<dd><code>parts</code> - components to join</dd>
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<div class="block">Create an url from url components</div>
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<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/yarn/webapp/ResponseInfo.html" title="class in org.apache.hadoop.yarn.webapp">ResponseInfo</a>&nbsp;info(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;about)</pre>
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<pre>public&nbsp;void&nbsp;render(<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;? extends <a href="../../../../../org/apache/hadoop/yarn/webapp/SubView.html" title="interface in org.apache.hadoop.yarn.webapp">SubView</a>&gt;&nbsp;cls)</pre>
<div class="block">Render a sub-view</div>
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