http://git-wip-us.apache.org/repos/asf/orc/blob/90934777/java/core/orc-core/org/apache/orc/DataMask.Factory.html
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diff --git a/java/core/orc-core/org/apache/orc/DataMask.Factory.html 
b/java/core/orc-core/org/apache/orc/DataMask.Factory.html
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+<div class="subTitle">org.apache.orc</div>
+<h2 title="Class DataMask.Factory" class="title">Class DataMask.Factory</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true";
 title="class or interface in java.lang">java.lang.Object</a></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.orc.DataMask.Factory</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>Enclosing interface:</dt>
+<dd><a href="../../../org/apache/orc/DataMask.html" title="interface in 
org.apache.orc">DataMask</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public static class <span class="typeNameLabel">DataMask.Factory</span>
+extends <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true";
 title="class or interface in java.lang">Object</a></pre>
+<div class="block">To create a DataMask, the users should come through this 
API.
+
+ It supports extension via additional DataMask.Provider implementations
+ that are accessed through Java's ServiceLoader API.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ======== CONSTRUCTOR SUMMARY ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.summary">
+<!--   -->
+</a>
+<h3>Constructor Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Factory.html#Factory--">Factory</a></span>()</code>&nbsp;</td>
+</tr>
+</table>
+</li>
+</ul>
+<!-- ========== METHOD SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.summary">
+<!--   -->
+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span 
class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a 
href="javascript:show(1);">Static Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a 
href="javascript:show(8);">Concrete Methods</a></span><span 
class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>static <a 
href="../../../org/apache/orc/DataMask.html" title="interface in 
org.apache.orc">DataMask</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Factory.html#build-java.lang.String-org.apache.orc.TypeDescription-java.lang.String...-">build</a></span>(<a
 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name,
+     <a href="../../../org/apache/orc/TypeDescription.html" title="class in 
org.apache.orc">TypeDescription</a>&nbsp;schema,
+     <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>...&nbsp;params)</code>
+<div class="block">Build a new DataMask instance.</div>
+</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
+<!--   -->
+</a>
+<h3>Methods inherited from class&nbsp;java.lang.<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true";
 title="class or interface in java.lang">Object</a></h3>
+<code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--";
 title="class or interface in java.lang">clone</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-";
 title="class or interface in java.lang">equals</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--";
 title="class or interface in java.lang">finalize</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--";
 title="class or interface in java.lang">getClass</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--";
 title="class or interface in java.lang">hashCode</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--";
 title="class or interface in java.lang">notify</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang
 /Object.html?is-external=true#notifyAll--" title="class or interface in 
java.lang">notifyAll</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--";
 title="class or interface in java.lang">toString</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--";
 title="class or interface in java.lang">wait</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-";
 title="class or interface in java.lang">wait</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-";
 title="class or interface in java.lang">wait</a></code></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="Factory--">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>Factory</h4>
+<pre>public&nbsp;Factory()</pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a 
name="build-java.lang.String-org.apache.orc.TypeDescription-java.lang.String...-">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>build</h4>
+<pre>public static&nbsp;<a href="../../../org/apache/orc/DataMask.html" 
title="interface in org.apache.orc">DataMask</a>&nbsp;build(<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name,
+                             <a 
href="../../../org/apache/orc/TypeDescription.html" title="class in 
org.apache.orc">TypeDescription</a>&nbsp;schema,
+                             <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>...&nbsp;params)</pre>
+<div class="block">Build a new DataMask instance.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>name</code> - the name of the mask</dd>
+<dd><code>schema</code> - the type of the field</dd>
+<dd><code>params</code> - a list of parameters to the mask</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>a new DataMask</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true";
 title="class or interface in java.lang">IllegalArgumentException</a></code> - 
if no such kind of data mask was found</dd>
+<dt><span class="seeLabel">See Also:</span></dt>
+<dd><a href="../../../org/apache/orc/impl/mask/MaskProvider.html" title="class 
in org.apache.orc.impl.mask"><code>for the standard provider</code></a></dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
+<div class="bottomNav"><a name="navbar.bottom">
+<!--   -->
+</a>
+<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation 
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+<li><a href="../../../index-all.html">Index</a></li>
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+</ul>
+</div>
+<div class="subNav">
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+<li><a href="../../../org/apache/orc/DataMask.html" title="interface in 
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http://git-wip-us.apache.org/repos/asf/orc/blob/90934777/java/core/orc-core/org/apache/orc/DataMask.Provider.html
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diff --git a/java/core/orc-core/org/apache/orc/DataMask.Provider.html 
b/java/core/orc-core/org/apache/orc/DataMask.Provider.html
new file mode 100644
index 0000000..7ba7fdc
--- /dev/null
+++ b/java/core/orc-core/org/apache/orc/DataMask.Provider.html
@@ -0,0 +1,249 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd";>
+<!-- NewPage -->
+<html lang="en">
+<head>
+<!-- Generated by javadoc (1.8.0_121) on Fri Jun 29 11:10:15 PDT 2018 -->
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>DataMask.Provider (ORC Core 1.5.2 API)</title>
+<meta name="date" content="2018-06-29">
+<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" 
title="Style">
+<script type="text/javascript" src="../../../script.js"></script>
+</head>
+<body>
+<script type="text/javascript"><!--
+    try {
+        if (location.href.indexOf('is-external=true') == -1) {
+            parent.document.title="DataMask.Provider (ORC Core 1.5.2 API)";
+        }
+    }
+    catch(err) {
+    }
+//-->
+var methods = {"i0":6};
+var tabs = {65535:["t0","All Methods"],2:["t2","Instance 
Methods"],4:["t3","Abstract Methods"]};
+var altColor = "altColor";
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+var activeTableTab = "activeTableTab";
+</script>
+<noscript>
+<div>JavaScript is disabled on your browser.</div>
+</noscript>
+<!-- ========= START OF TOP NAVBAR ======= -->
+<div class="topNav"><a name="navbar.top">
+<!--   -->
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+<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation 
links">Skip navigation links</a></div>
+<a name="navbar.top.firstrow">
+<!--   -->
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+<ul class="navList" title="Navigation">
+<li><a href="../../../overview-summary.html">Overview</a></li>
+<li><a href="package-summary.html">Package</a></li>
+<li class="navBarCell1Rev">Class</li>
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+<li><a href="package-tree.html">Tree</a></li>
+<li><a href="../../../deprecated-list.html">Deprecated</a></li>
+<li><a href="../../../index-all.html">Index</a></li>
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+</ul>
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+</ul>
+<div>
+<script type="text/javascript"><!--
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+<ul class="subNavList">
+<li>Summary:&nbsp;</li>
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+<li>Field&nbsp;|&nbsp;</li>
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+</ul>
+<ul class="subNavList">
+<li>Detail:&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li>Constr&nbsp;|&nbsp;</li>
+<li><a href="#method.detail">Method</a></li>
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+<!--   -->
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+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.orc</div>
+<h2 title="Interface DataMask.Provider" class="title">Interface 
DataMask.Provider</h2>
+</div>
+<div class="contentContainer">
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Known Implementing Classes:</dt>
+<dd><a href="../../../org/apache/orc/impl/mask/MaskProvider.html" title="class 
in org.apache.orc.impl.mask">MaskProvider</a></dd>
+</dl>
+<dl>
+<dt>Enclosing interface:</dt>
+<dd><a href="../../../org/apache/orc/DataMask.html" title="interface in 
org.apache.orc">DataMask</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public static interface <span 
class="typeNameLabel">DataMask.Provider</span></pre>
+<div class="block">Providers can provide one or more kinds of data masks.
+ Because they are discovered using a service loader, they may be added
+ by third party jars.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========== METHOD SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.summary">
+<!--   -->
+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span 
class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a 
href="javascript:show(2);">Instance Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a 
href="javascript:show(4);">Abstract Methods</a></span><span 
class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code><a href="../../../org/apache/orc/DataMask.html" 
title="interface in org.apache.orc">DataMask</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Provider.html#build-java.lang.String-org.apache.orc.TypeDescription-java.lang.String...-">build</a></span>(<a
 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name,
+     <a href="../../../org/apache/orc/TypeDescription.html" title="class in 
org.apache.orc">TypeDescription</a>&nbsp;schema,
+     <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>...&nbsp;params)</code>
+<div class="block">Build a mask with the given parameters.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a 
name="build-java.lang.String-org.apache.orc.TypeDescription-java.lang.String...-">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>build</h4>
+<pre><a href="../../../org/apache/orc/DataMask.html" title="interface in 
org.apache.orc">DataMask</a>&nbsp;build(<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name,
+               <a href="../../../org/apache/orc/TypeDescription.html" 
title="class in org.apache.orc">TypeDescription</a>&nbsp;schema,
+               <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>...&nbsp;params)</pre>
+<div class="block">Build a mask with the given parameters.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>name</code> - the kind of masking</dd>
+<dd><code>schema</code> - the type of the field</dd>
+<dd><code>params</code> - the list of parameters with the name in 
params[0]</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the new data mask or null if this name is unknown</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
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http://git-wip-us.apache.org/repos/asf/orc/blob/90934777/java/core/orc-core/org/apache/orc/DataMask.Standard.html
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diff --git a/java/core/orc-core/org/apache/orc/DataMask.Standard.html 
b/java/core/orc-core/org/apache/orc/DataMask.Standard.html
new file mode 100644
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--- /dev/null
+++ b/java/core/orc-core/org/apache/orc/DataMask.Standard.html
@@ -0,0 +1,391 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd";>
+<!-- NewPage -->
+<html lang="en">
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+<!-- Generated by javadoc (1.8.0_121) on Fri Jun 29 11:10:15 PDT 2018 -->
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>DataMask.Standard (ORC Core 1.5.2 API)</title>
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+//-->
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+<ul class="subNavList">
+<li>Summary:&nbsp;</li>
+<li>Nested&nbsp;|&nbsp;</li>
+<li><a href="#enum.constant.summary">Enum Constants</a>&nbsp;|&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail:&nbsp;</li>
+<li><a href="#enum.constant.detail">Enum Constants</a>&nbsp;|&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li><a href="#method.detail">Method</a></li>
+</ul>
+</div>
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+<!--   -->
+</a></div>
+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.orc</div>
+<h2 title="Enum DataMask.Standard" class="title">Enum DataMask.Standard</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true";
 title="class or interface in java.lang">java.lang.Object</a></li>
+<li>
+<ul class="inheritance">
+<li><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true";
 title="class or interface in java.lang">java.lang.Enum</a>&lt;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>&gt;</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.orc.DataMask.Standard</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Implemented Interfaces:</dt>
+<dd><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true";
 title="class or interface in java.io">Serializable</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Comparable.html?is-external=true";
 title="class or interface in java.lang">Comparable</a>&lt;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>&gt;</dd>
+</dl>
+<dl>
+<dt>Enclosing interface:</dt>
+<dd><a href="../../../org/apache/orc/DataMask.html" title="interface in 
org.apache.orc">DataMask</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public static enum <span class="typeNameLabel">DataMask.Standard</span>
+extends <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true";
 title="class or interface in java.lang">Enum</a>&lt;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>&gt;</pre>
+<div class="block">The standard DataMasks can be created using this short cut.
+
+ For example, DataMask.Standard.NULLIFY.build(schema) will build a
+ nullify DataMask.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- =========== ENUM CONSTANT SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="enum.constant.summary">
+<!--   -->
+</a>
+<h3>Enum Constant Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Enum Constant Summary table, listing enum constants, and an 
explanation">
+<caption><span>Enum Constants</span><span 
class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Enum Constant and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#NULLIFY">NULLIFY</a></span></code>&nbsp;</td>
+</tr>
+<tr class="rowColor">
+<td class="colOne"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#REDACT">REDACT</a></span></code>&nbsp;</td>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#SHA256">SHA256</a></span></code>&nbsp;</td>
+</tr>
+</table>
+</li>
+</ul>
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+<li class="blockList"><a name="method.summary">
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+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span 
class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a 
href="javascript:show(1);">Static Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a 
href="javascript:show(2);">Instance Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a 
href="javascript:show(8);">Concrete Methods</a></span><span 
class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code><a href="../../../org/apache/orc/DataMask.html" 
title="interface in org.apache.orc">DataMask</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#build-org.apache.orc.TypeDescription-java.lang.String...-">build</a></span>(<a
 href="../../../org/apache/orc/TypeDescription.html" title="class in 
org.apache.orc">TypeDescription</a>&nbsp;schema,
+     <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in 
java.lang">String</a>...&nbsp;params)</code>&nbsp;</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code><a 
href="http://docs.oracle.com/javase/7/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/orc/DataMask.Standard.html#getName--">getName</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>static <a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#valueOf-java.lang.String-">valueOf</a></span>(<a
 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name)</code>
+<div class="block">Returns the enum constant of this type with the specified 
name.</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>static <a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>[]</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html#values--">values</a></span>()</code>
+<div class="block">Returns an array containing the constants of this enum 
type, in
+the order they are declared.</div>
+</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods.inherited.from.class.java.lang.Enum">
+<!--   -->
+</a>
+<h3>Methods inherited from class&nbsp;java.lang.<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true";
 title="class or interface in java.lang">Enum</a></h3>
+<code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#clone--";
 title="class or interface in java.lang">clone</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#compareTo-E-";
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 title="class or interface in java.lang">hashCode</a>, <a 
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 api/java/lang/Enum.html?is-external=true#name--" title="class or interface in 
java.lang">name</a>, <a 
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 title="class or interface in java.lang">ordinal</a>, <a 
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 title="class or interface in java.lang">toString</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#valueOf-java.lang.Class-java.lang.String-";
 title="class or interface in java.lang">valueOf</a></code></li>
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+<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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+<h3>Methods inherited from class&nbsp;java.lang.<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true";
 title="class or interface in java.lang">Object</a></h3>
+<code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--";
 title="class or interface in java.lang">getClass</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--";
 title="class or interface in java.lang">notify</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--";
 title="class or interface in java.lang">notifyAll</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--";
 title="class or interface in java.lang">wait</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-";
 title="class or interface in java.lang">wait</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-";
 title="class or interface in java.lang">wait</a></code></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ============ ENUM CONSTANT DETAIL =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="enum.constant.detail">
+<!--   -->
+</a>
+<h3>Enum Constant Detail</h3>
+<a name="NULLIFY">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>NULLIFY</h4>
+<pre>public static final&nbsp;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a> NULLIFY</pre>
+</li>
+</ul>
+<a name="REDACT">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>REDACT</h4>
+<pre>public static final&nbsp;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a> REDACT</pre>
+</li>
+</ul>
+<a name="SHA256">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>SHA256</h4>
+<pre>public static final&nbsp;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a> SHA256</pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a name="values--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>values</h4>
+<pre>public static&nbsp;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>[]&nbsp;values()</pre>
+<div class="block">Returns an array containing the constants of this enum 
type, in
+the order they are declared.  This method may be used to iterate
+over the constants as follows:
+<pre>
+for (DataMask.Standard c : DataMask.Standard.values())
+&nbsp;   System.out.println(c);
+</pre></div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>an array containing the constants of this enum type, in the order they are 
declared</dd>
+</dl>
+</li>
+</ul>
+<a name="valueOf-java.lang.String-">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>valueOf</h4>
+<pre>public static&nbsp;<a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a>&nbsp;valueOf(<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;name)</pre>
+<div class="block">Returns the enum constant of this type with the specified 
name.
+The string must match <i>exactly</i> an identifier used to declare an
+enum constant in this type.  (Extraneous whitespace characters are 
+not permitted.)</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>name</code> - the name of the enum constant to be returned.</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the enum constant with the specified name</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true";
 title="class or interface in java.lang">IllegalArgumentException</a></code> - 
if this enum type has no constant with the specified name</dd>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true";
 title="class or interface in java.lang">NullPointerException</a></code> - if 
the argument is null</dd>
+</dl>
+</li>
+</ul>
+<a name="getName--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getName</h4>
+<pre>public&nbsp;<a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>&nbsp;getName()</pre>
+</li>
+</ul>
+<a name="build-org.apache.orc.TypeDescription-java.lang.String...-">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>build</h4>
+<pre>public&nbsp;<a href="../../../org/apache/orc/DataMask.html" 
title="interface in org.apache.orc">DataMask</a>&nbsp;build(<a 
href="../../../org/apache/orc/TypeDescription.html" title="class in 
org.apache.orc">TypeDescription</a>&nbsp;schema,
+                      <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true";
 title="class or interface in java.lang">String</a>...&nbsp;params)</pre>
+</li>
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+<!-- ========= END OF CLASS DATA ========= -->
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http://git-wip-us.apache.org/repos/asf/orc/blob/90934777/java/core/orc-core/org/apache/orc/DataMask.html
----------------------------------------------------------------------
diff --git a/java/core/orc-core/org/apache/orc/DataMask.html 
b/java/core/orc-core/org/apache/orc/DataMask.html
new file mode 100644
index 0000000..d39f57b
--- /dev/null
+++ b/java/core/orc-core/org/apache/orc/DataMask.html
@@ -0,0 +1,280 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
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+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>DataMask (ORC Core 1.5.2 API)</title>
+<meta name="date" content="2018-06-29">
+<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" 
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+            parent.document.title="DataMask (ORC Core 1.5.2 API)";
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+    catch(err) {
+    }
+//-->
+var methods = {"i0":6};
+var tabs = {65535:["t0","All Methods"],2:["t2","Instance 
Methods"],4:["t3","Abstract Methods"]};
+var altColor = "altColor";
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+<div>
+<ul class="subNavList">
+<li>Summary:&nbsp;</li>
+<li><a href="#nested.class.summary">Nested</a>&nbsp;|&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
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+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail:&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
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+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.orc</div>
+<h2 title="Interface DataMask" class="title">Interface DataMask</h2>
+</div>
+<div class="contentContainer">
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Known Implementing Classes:</dt>
+<dd><a href="../../../org/apache/orc/impl/mask/DecimalIdentity.html" 
title="class in org.apache.orc.impl.mask">DecimalIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/DoubleIdentity.html" title="class in 
org.apache.orc.impl.mask">DoubleIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/ListIdentity.html" title="class in 
org.apache.orc.impl.mask">ListIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/LongIdentity.html" title="class in 
org.apache.orc.impl.mask">LongIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/MapIdentity.html" title="class in 
org.apache.orc.impl.mask">MapIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/NullifyMask.html" title="class in 
org.apache.orc.impl.mask">NullifyMask</a>, <a 
href="../../../org/apache/orc/impl/mask/StructIdentity.html" title="class in 
org.apache.orc.impl.mask">StructIdentity</a>, <a 
href="../../../org/apache/orc/impl/mask/UnionIdentity.html" title="class in 
org.apache.orc.impl.mask">UnionIdentity</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public interface <span class="typeNameLabel">DataMask</span></pre>
+<div class="block">The API for masking data during column encryption for ORC.
+
+ They apply to an individual column (via ColumnVector) instead of a
+ VectorRowBatch.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ======== NESTED CLASS SUMMARY ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="nested.class.summary">
+<!--   -->
+</a>
+<h3>Nested Class Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Nested Class Summary table, listing nested classes, and an 
explanation">
+<caption><span>Nested Classes</span><span 
class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Interface and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>static class&nbsp;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Factory.html" title="class in 
org.apache.orc">DataMask.Factory</a></span></code>
+<div class="block">To create a DataMask, the users should come through this 
API.</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>static interface&nbsp;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Provider.html" title="interface in 
org.apache.orc">DataMask.Provider</a></span></code>
+<div class="block">Providers can provide one or more kinds of data masks.</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>static class&nbsp;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc">DataMask.Standard</a></span></code>
+<div class="block">The standard DataMasks can be created using this short 
cut.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+<!-- ========== METHOD SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.summary">
+<!--   -->
+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span 
class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a 
href="javascript:show(2);">Instance Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a 
href="javascript:show(4);">Abstract Methods</a></span><span 
class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataMask.html#maskData-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-int-int-">maskData</a></span>(<a
 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;original,
+        <a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;masked,
+        int&nbsp;start,
+        int&nbsp;length)</code>
+<div class="block">Mask the given range of values</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a 
name="maskData-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-int-int-">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>maskData</h4>
+<pre>void&nbsp;maskData(<a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;original,
+              <a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;masked,
+              int&nbsp;start,
+              int&nbsp;length)</pre>
+<div class="block">Mask the given range of values</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>original</code> - the original input data</dd>
+<dd><code>masked</code> - the masked output data</dd>
+<dd><code>start</code> - the first data element to mask</dd>
+<dd><code>length</code> - the number of data elements to mask</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
+<div class="bottomNav"><a name="navbar.bottom">
+<!--   -->
+</a>
+<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation 
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+<li><a href="package-summary.html">Package</a></li>
+<li class="navBarCell1Rev">Class</li>
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+<li><a href="package-tree.html">Tree</a></li>
+<li><a href="../../../deprecated-list.html">Deprecated</a></li>
+<li><a href="../../../index-all.html">Index</a></li>
+<li><a href="../../../help-doc.html">Help</a></li>
+</ul>
+</div>
+<div class="subNav">
+<ul class="navList">
+<li><a href="../../../org/apache/orc/CompressionKind.html" title="enum in 
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+<li><a href="../../../org/apache/orc/DataMask.Factory.html" title="class in 
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+</ul>
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+</ul>
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+<!--   -->
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+<!-- ======== END OF BOTTOM NAVBAR ======= -->
+<p class="legalCopy"><small>Copyright &#169; 2013&#x2013;2018 <a 
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+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/orc/blob/90934777/java/core/orc-core/org/apache/orc/DataReader.html
----------------------------------------------------------------------
diff --git a/java/core/orc-core/org/apache/orc/DataReader.html 
b/java/core/orc-core/org/apache/orc/DataReader.html
new file mode 100644
index 0000000..7c7e122
--- /dev/null
+++ b/java/core/orc-core/org/apache/orc/DataReader.html
@@ -0,0 +1,425 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd";>
+<!-- NewPage -->
+<html lang="en">
+<head>
+<!-- Generated by javadoc (1.8.0_121) on Fri Jun 29 11:10:15 PDT 2018 -->
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>DataReader (ORC Core 1.5.2 API)</title>
+<meta name="date" content="2018-06-29">
+<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" 
title="Style">
+<script type="text/javascript" src="../../../script.js"></script>
+</head>
+<body>
+<script type="text/javascript"><!--
+    try {
+        if (location.href.indexOf('is-external=true') == -1) {
+            parent.document.title="DataReader (ORC Core 1.5.2 API)";
+        }
+    }
+    catch(err) {
+    }
+//-->
+var methods = {"i0":6,"i1":6,"i2":6,"i3":6,"i4":6,"i5":6,"i6":6,"i7":6,"i8":6};
+var tabs = {65535:["t0","All Methods"],2:["t2","Instance 
Methods"],4:["t3","Abstract Methods"]};
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+<div>JavaScript is disabled on your browser.</div>
+</noscript>
+<!-- ========= START OF TOP NAVBAR ======= -->
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+<!--   -->
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+<li><a href="package-summary.html">Package</a></li>
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+<li><a href="../../../deprecated-list.html">Deprecated</a></li>
+<li><a href="../../../index-all.html">Index</a></li>
+<li><a href="../../../help-doc.html">Help</a></li>
+</ul>
+</div>
+<div class="subNav">
+<ul class="navList">
+<li><a href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
org.apache.orc"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
+<li><a href="../../../org/apache/orc/DateColumnStatistics.html" 
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+</ul>
+<ul class="navList">
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+<ul class="navList" id="allclasses_navbar_top">
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+</ul>
+<div>
+<script type="text/javascript"><!--
+  allClassesLink = document.getElementById("allclasses_navbar_top");
+  if(window==top) {
+    allClassesLink.style.display = "block";
+  }
+  else {
+    allClassesLink.style.display = "none";
+  }
+  //-->
+</script>
+</div>
+<div>
+<ul class="subNavList">
+<li>Summary:&nbsp;</li>
+<li>Nested&nbsp;|&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li>Constr&nbsp;|&nbsp;</li>
+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail:&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li>Constr&nbsp;|&nbsp;</li>
+<li><a href="#method.detail">Method</a></li>
+</ul>
+</div>
+<a name="skip.navbar.top">
+<!--   -->
+</a></div>
+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.orc</div>
+<h2 title="Interface DataReader" class="title">Interface DataReader</h2>
+</div>
+<div class="contentContainer">
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>All Superinterfaces:</dt>
+<dd><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true";
 title="class or interface in java.lang">AutoCloseable</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Cloneable.html?is-external=true";
 title="class or interface in java.lang">Cloneable</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public interface <span class="typeNameLabel">DataReader</span>
+extends <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true";
 title="class or interface in java.lang">AutoCloseable</a>, <a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/Cloneable.html?is-external=true";
 title="class or interface in java.lang">Cloneable</a></pre>
+<div class="block">An abstract data reader that IO formats can use to read 
bytes from underlying storage.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========== METHOD SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.summary">
+<!--   -->
+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" 
summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span 
class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a 
href="javascript:show(2);">Instance Methods</a></span><span 
class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a 
href="javascript:show(4);">Abstract Methods</a></span><span 
class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code><a href="../../../org/apache/orc/DataReader.html" 
title="interface in org.apache.orc">DataReader</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#clone--">clone</a></span>()</code>
+<div class="block">Clone the entire state of the DataReader with the 
assumption that the
+ clone will be closed at a different time.</div>
+</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#close--">close</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code><a 
href="../../../org/apache/orc/CompressionCodec.html" title="interface in 
org.apache.orc">CompressionCodec</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#getCompressionCodec--">getCompressionCodec</a></span>()</code>
+<div class="block">Returns the compression codec used by this datareader.</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#isTrackingDiskRanges--">isTrackingDiskRanges</a></span>()</code>
+<div class="block">Whether the user should release buffers created by 
readFileData.</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#open--">open</a></span>()</code>
+<div class="block">Opens the DataReader, making it ready to use.</div>
+</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code><a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/common/io/DiskRangeList.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.common.io">DiskRangeList</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#readFileData-org.apache.hadoop.hive.common.io.DiskRangeList-long-boolean-">readFileData</a></span>(<a
 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/common/io/DiskRangeList.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.common.io">DiskRangeList</a>&nbsp;range,
+            long&nbsp;baseOffset,
+            boolean&nbsp;doForceDirect)</code>
+<div class="block">Reads the data.</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code><a 
href="../../../org/apache/orc/impl/OrcIndex.html" title="class in 
org.apache.orc.impl">OrcIndex</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#readRowIndex-org.apache.orc.StripeInformation-org.apache.orc.TypeDescription-org.apache.orc.OrcProto.StripeFooter-boolean-boolean:A-org.apache.orc.OrcProto.RowIndex:A-boolean:A-org.apache.orc.OrcFile.WriterVersion-org.apache.orc.OrcProto.Stream.Kind:A-org.apache.orc.OrcProto.BloomFilterIndex:A-">readRowIndex</a></span>(<a
 href="../../../org/apache/orc/StripeInformation.html" title="interface in 
org.apache.orc">StripeInformation</a>&nbsp;stripe,
+            <a href="../../../org/apache/orc/TypeDescription.html" 
title="class in org.apache.orc">TypeDescription</a>&nbsp;fileSchema,
+            <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeFooter.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.StripeFooter</a>&nbsp;footer,
+            boolean&nbsp;ignoreNonUtf8BloomFilter,
+            boolean[]&nbsp;included,
+            <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.RowIndex.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.RowIndex</a>[]&nbsp;indexes,
+            boolean[]&nbsp;sargColumns,
+            <a href="../../../org/apache/orc/OrcFile.WriterVersion.html" 
title="enum in org.apache.orc">OrcFile.WriterVersion</a>&nbsp;version,
+            <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.Stream.Kind.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.Stream.Kind</a>[]&nbsp;bloomFilterKinds,
+            <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.BloomFilterIndex.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.BloomFilterIndex</a>[]&nbsp;bloomFilterIndices)</code>&nbsp;</td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code><a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeFooter.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.StripeFooter</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#readStripeFooter-org.apache.orc.StripeInformation-">readStripeFooter</a></span>(<a
 href="../../../org/apache/orc/StripeInformation.html" title="interface in 
org.apache.orc">StripeInformation</a>&nbsp;stripe)</code>&nbsp;</td>
+</tr>
+<tr id="i8" class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a 
href="../../../org/apache/orc/DataReader.html#releaseBuffer-java.nio.ByteBuffer-">releaseBuffer</a></span>(<a
 
href="http://docs.oracle.com/javase/7/docs/api/java/nio/ByteBuffer.html?is-external=true";
 title="class or interface in java.nio">ByteBuffer</a>&nbsp;toRelease)</code>
+<div class="block">Releases buffers created by readFileData.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!--   -->
+</a>
+<h3>Method Detail</h3>
+<a name="open--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>open</h4>
+<pre>void&nbsp;open()
+   throws <a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></pre>
+<div class="block">Opens the DataReader, making it ready to use.</div>
+<dl>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a 
name="readRowIndex-org.apache.orc.StripeInformation-org.apache.orc.TypeDescription-org.apache.orc.OrcProto.StripeFooter-boolean-boolean:A-org.apache.orc.OrcProto.RowIndex:A-boolean:A-org.apache.orc.OrcFile.WriterVersion-org.apache.orc.OrcProto.Stream.Kind:A-org.apache.orc.OrcProto.BloomFilterIndex:A-">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>readRowIndex</h4>
+<pre><a href="../../../org/apache/orc/impl/OrcIndex.html" title="class in 
org.apache.orc.impl">OrcIndex</a>&nbsp;readRowIndex(<a 
href="../../../org/apache/orc/StripeInformation.html" title="interface in 
org.apache.orc">StripeInformation</a>&nbsp;stripe,
+                      <a href="../../../org/apache/orc/TypeDescription.html" 
title="class in org.apache.orc">TypeDescription</a>&nbsp;fileSchema,
+                      <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeFooter.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.StripeFooter</a>&nbsp;footer,
+                      boolean&nbsp;ignoreNonUtf8BloomFilter,
+                      boolean[]&nbsp;included,
+                      <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.RowIndex.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.RowIndex</a>[]&nbsp;indexes,
+                      boolean[]&nbsp;sargColumns,
+                      <a 
href="../../../org/apache/orc/OrcFile.WriterVersion.html" title="enum in 
org.apache.orc">OrcFile.WriterVersion</a>&nbsp;version,
+                      <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.Stream.Kind.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.Stream.Kind</a>[]&nbsp;bloomFilterKinds,
+                      <a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.BloomFilterIndex.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.BloomFilterIndex</a>[]&nbsp;bloomFilterIndices)
+               throws <a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></pre>
+<dl>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a name="readStripeFooter-org.apache.orc.StripeInformation-">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>readStripeFooter</h4>
+<pre><a 
href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeFooter.html?is-external=true";
 title="class or interface in 
org.apache.orc">OrcProto.StripeFooter</a>&nbsp;readStripeFooter(<a 
href="../../../org/apache/orc/StripeInformation.html" title="interface in 
org.apache.orc">StripeInformation</a>&nbsp;stripe)
+                                throws <a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></pre>
+<dl>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a 
name="readFileData-org.apache.hadoop.hive.common.io.DiskRangeList-long-boolean-">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>readFileData</h4>
+<pre><a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/common/io/DiskRangeList.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.common.io">DiskRangeList</a>&nbsp;readFileData(<a 
href="http://orc.apache.org/api/hive-storage-api/org/apache/hadoop/hive/common/io/DiskRangeList.html?is-external=true";
 title="class or interface in 
org.apache.hadoop.hive.common.io">DiskRangeList</a>&nbsp;range,
+                           long&nbsp;baseOffset,
+                           boolean&nbsp;doForceDirect)
+                    throws <a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></pre>
+<div class="block">Reads the data.
+
+ Note that for the cases such as zero-copy read, caller must release the disk 
ranges
+ produced after being done with them. Call isTrackingDiskRanges to find out if 
this is needed.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>range</code> - List if disk ranges to read. Ranges with data will be 
ignored.</dd>
+<dd><code>baseOffset</code> - Base offset from the start of the file of the 
ranges in disk range list.</dd>
+<dd><code>doForceDirect</code> - Whether the data should be read into direct 
buffers.</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>New or modified list of DiskRange-s, where all the ranges are filled with 
data.</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a name="isTrackingDiskRanges--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>isTrackingDiskRanges</h4>
+<pre>boolean&nbsp;isTrackingDiskRanges()</pre>
+<div class="block">Whether the user should release buffers created by 
readFileData. See readFileData javadoc.</div>
+</li>
+</ul>
+<a name="releaseBuffer-java.nio.ByteBuffer-">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>releaseBuffer</h4>
+<pre>void&nbsp;releaseBuffer(<a 
href="http://docs.oracle.com/javase/7/docs/api/java/nio/ByteBuffer.html?is-external=true";
 title="class or interface in java.nio">ByteBuffer</a>&nbsp;toRelease)</pre>
+<div class="block">Releases buffers created by readFileData. See readFileData 
javadoc.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>toRelease</code> - The buffer to release.</dd>
+</dl>
+</li>
+</ul>
+<a name="clone--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>clone</h4>
+<pre><a href="../../../org/apache/orc/DataReader.html" title="interface in 
org.apache.orc">DataReader</a>&nbsp;clone()</pre>
+<div class="block">Clone the entire state of the DataReader with the 
assumption that the
+ clone will be closed at a different time. Thus, any file handles in the
+ implementation need to be cloned.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>a new instance</dd>
+</dl>
+</li>
+</ul>
+<a name="close--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>close</h4>
+<pre>void&nbsp;close()
+    throws <a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></pre>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true#close--";
 title="class or interface in java.lang">close</a></code>&nbsp;in 
interface&nbsp;<code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true";
 title="class or interface in java.lang">AutoCloseable</a></code></dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a 
href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true";
 title="class or interface in java.io">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a name="getCompressionCodec--">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>getCompressionCodec</h4>
+<pre><a href="../../../org/apache/orc/CompressionCodec.html" title="interface 
in org.apache.orc">CompressionCodec</a>&nbsp;getCompressionCodec()</pre>
+<div class="block">Returns the compression codec used by this datareader.
+ We should consider removing this from the interface.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the compression codec</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
+<div class="bottomNav"><a name="navbar.bottom">
+<!--   -->
+</a>
+<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation 
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+<!--   -->
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+<ul class="navList" title="Navigation">
+<li><a href="../../../overview-summary.html">Overview</a></li>
+<li><a href="package-summary.html">Package</a></li>
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+<li><a href="../../../deprecated-list.html">Deprecated</a></li>
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+<li><a href="../../../help-doc.html">Help</a></li>
+</ul>
+</div>
+<div class="subNav">
+<ul class="navList">
+<li><a href="../../../org/apache/orc/DataMask.Standard.html" title="enum in 
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