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+<li><a href="#method.summary">Method</a></li>
+</ul>
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+<li><a href="#method.detail">Method</a></li>
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+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.arrow.memory</div>
+<h2 title="Class AllocationManager.BufferLedger" class="title">Class AllocationManager.BufferLedger</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.arrow.memory.AllocationManager.BufferLedger</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>Enclosing class:</dt>
+<dd><a href="../../../../org/apache/arrow/memory/AllocationManager.html" title="class in org.apache.arrow.memory">AllocationManager</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public class <span class="typeNameLabel">AllocationManager.BufferLedger</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">The reference manager that binds an allocator manager to a particular BaseAllocator. Also
+ responsible for creating
+ a set of ArrowBufs that share a common fate and set of reference counts.
+ As with AllocationManager, the only reason this is public is due to ArrowBuf being in io
+ .netty.buffer package.</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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#decrement-int-">decrement</a></span>(int decrement)</code>
+<div class="block">Decrement the ledger's reference count.</div>
+</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#getAccountedSize--">getAccountedSize</a></span>()</code>
+<div class="block">How much memory is accounted for by this ledger.</div>
+</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html" title="class in org.apache.arrow.memory">AllocationManager.BufferLedger</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#getLedgerForAllocator-org.apache.arrow.memory.BufferAllocator-">getLedgerForAllocator</a></span>(<a href="../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</code>
+<div class="block">Returns the ledger associated with a particular BufferAllocator.</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#getSize--">getSize</a></span>()</code>
+<div class="block">What is the total size (in bytes) of memory underlying this ledger.</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code><a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#newArrowBuf-int-int-">newArrowBuf</a></span>(int offset,
+ int length)</code>
+<div class="block">Create a new ArrowBuf associated with this AllocationManager and memory.</div>
+</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code><a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#newArrowBuf-int-int-org.apache.arrow.memory.BufferManager-">newArrowBuf</a></span>(int offset,
+ int length,
+ <a href="../../../../org/apache/arrow/memory/BufferManager.html" title="interface in org.apache.arrow.memory">BufferManager</a> manager)</code>
+<div class="block">Create a new ArrowBuf associated with this AllocationManager and memory.</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#print-java.lang.StringBuilder-int-org.apache.arrow.memory.BaseAllocator.Verbosity-">print</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a> sb,
+ int indent,
+ <a href="../../../../org/apache/arrow/memory/BaseAllocator.Verbosity.html" title="enum in org.apache.arrow.memory">BaseAllocator.Verbosity</a> verbosity)</code>
+<div class="block">Print the current ledger state to a the provided StringBuilder.</div>
+</td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html#transferBalance-org.apache.arrow.memory.AllocationManager.BufferLedger-">transferBalance</a></span>(<a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html" title="class in org.apache.arrow.memory">AllocationManager.BufferLedger</a> target)</code>
+<div class="block">Transfer any balance the current ledger has to the target ledger.</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 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">
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!-- -->
+</a>
+<h3>Method Detail</h3>
+<a name="transferBalance-org.apache.arrow.memory.AllocationManager.BufferLedger-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>transferBalance</h4>
+<pre>public boolean transferBalance(<a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html" title="class in org.apache.arrow.memory">AllocationManager.BufferLedger</a> target)</pre>
+<div class="block">Transfer any balance the current ledger has to the target ledger. In the case that the
+ current ledger holds no
+ memory, no transfer is made to the new ledger.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>target</code> - The ledger to transfer ownership account to.</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>Whether transfer fit within target ledgers limits.</dd>
+</dl>
+</li>
+</ul>
+<a name="print-java.lang.StringBuilder-int-org.apache.arrow.memory.BaseAllocator.Verbosity-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>print</h4>
+<pre>public void print(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a> sb,
+ int indent,
+ <a href="../../../../org/apache/arrow/memory/BaseAllocator.Verbosity.html" title="enum in org.apache.arrow.memory">BaseAllocator.Verbosity</a> verbosity)</pre>
+<div class="block">Print the current ledger state to a the provided StringBuilder.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>sb</code> - The StringBuilder to populate.</dd>
+<dd><code>indent</code> - The level of indentation to position the data.</dd>
+<dd><code>verbosity</code> - The level of verbosity to print.</dd>
+</dl>
+</li>
+</ul>
+<a name="decrement-int-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>decrement</h4>
+<pre>public int decrement(int decrement)</pre>
+<div class="block">Decrement the ledger's reference count. If the ledger is decremented to zero, this ledger
+ should release its
+ ownership back to the AllocationManager</div>
+</li>
+</ul>
+<a name="getLedgerForAllocator-org.apache.arrow.memory.BufferAllocator-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getLedgerForAllocator</h4>
+<pre>public <a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html" title="class in org.apache.arrow.memory">AllocationManager.BufferLedger</a> getLedgerForAllocator(<a href="../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</pre>
+<div class="block">Returns the ledger associated with a particular BufferAllocator. If the BufferAllocator
+ doesn't currently have a
+ ledger associated with this AllocationManager, a new one is created. This is placed on
+ BufferLedger rather than
+ AllocationManager directly because ArrowBufs don't have access to AllocationManager and
+ they are the ones
+ responsible for exposing the ability to associate multiple allocators with a particular
+ piece of underlying
+ memory. Note that this will increment the reference count of this ledger by one to ensure
+ the ledger isn't
+ destroyed before use.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>allocator</code> - A BufferAllocator.</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>The ledger associated with the BufferAllocator.</dd>
+</dl>
+</li>
+</ul>
+<a name="newArrowBuf-int-int-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>newArrowBuf</h4>
+<pre>public <a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a> newArrowBuf(int offset,
+ int length)</pre>
+<div class="block">Create a new ArrowBuf associated with this AllocationManager and memory. Does not impact
+ reference count.
+ Typically used for slicing.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>offset</code> - The offset in bytes to start this new ArrowBuf.</dd>
+<dd><code>length</code> - The length in bytes that this ArrowBuf will provide access to.</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>A new ArrowBuf that shares references with all ArrowBufs associated with this
+ BufferLedger</dd>
+</dl>
+</li>
+</ul>
+<a name="newArrowBuf-int-int-org.apache.arrow.memory.BufferManager-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>newArrowBuf</h4>
+<pre>public <a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a> newArrowBuf(int offset,
+ int length,
+ <a href="../../../../org/apache/arrow/memory/BufferManager.html" title="interface in org.apache.arrow.memory">BufferManager</a> manager)</pre>
+<div class="block">Create a new ArrowBuf associated with this AllocationManager and memory.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>offset</code> - The offset in bytes to start this new ArrowBuf.</dd>
+<dd><code>length</code> - The length in bytes that this ArrowBuf will provide access to.</dd>
+<dd><code>manager</code> - An optional BufferManager argument that can be used to manage expansion of
+ this ArrowBuf</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>A new ArrowBuf that shares references with all ArrowBufs associated with this
+ BufferLedger</dd>
+</dl>
+</li>
+</ul>
+<a name="getSize--">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getSize</h4>
+<pre>public int getSize()</pre>
+<div class="block">What is the total size (in bytes) of memory underlying this ledger.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>Size in bytes</dd>
+</dl>
+</li>
+</ul>
+<a name="getAccountedSize--">
+<!-- -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>getAccountedSize</h4>
+<pre>public int getAccountedSize()</pre>
+<div class="block">How much memory is accounted for by this ledger. This is either getSize() if this is the
+ owning ledger for the
+ memory or zero in the case that this is not the owning ledger associated with this memory.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>Amount of accounted(owned) memory associated with this ledger.</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
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+<li><a href="#method.summary">Method</a></li>
+</ul>
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+<li>Detail: </li>
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http://git-wip-us.apache.org/repos/asf/arrow-site/blob/355ede33/docs/java/org/apache/arrow/memory/AllocationManager.html
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diff --git a/docs/java/org/apache/arrow/memory/AllocationManager.html b/docs/java/org/apache/arrow/memory/AllocationManager.html
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+<!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 Sun Apr 23 17:49:08 EDT 2017 -->
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+<div class="subTitle">org.apache.arrow.memory</div>
+<h2 title="Class AllocationManager" class="title">Class AllocationManager</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.arrow.memory.AllocationManager</li>
+</ul>
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+<pre>public class <span class="typeNameLabel">AllocationManager</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">Manages the relationship between one or more allocators and a particular UDLE. Ensures that
+ one allocator owns the
+ memory that multiple allocators may be referencing. Manages a BufferLedger between each of its
+ associated allocators.
+ This class is also responsible for managing when memory is allocated and returned to the
+ Netty-based
+ PooledByteBufAllocatorL.
+ <p>
+ The only reason that this isn't package private is we're forced to put ArrowBuf in Netty's
+ package which need access
+ to these objects or methods.
+ <p>
+ Threading: AllocationManager manages thread-safety internally. Operations within the context
+ of a single BufferLedger
+ are lockless in nature and can be leveraged by multiple threads. Operations that cross the
+ context of two ledgers
+ will acquire a lock on the AllocationManager instance. Important note, there is one
+ AllocationManager per
+ UnsafeDirectLittleEndian buffer allocation. As such, there will be thousands of these in a
+ typical query. The
+ contention of acquiring a lock on AllocationManager should be very low.</div>
+</li>
+</ul>
+</div>
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+<caption><span>Nested Classes</span><span class="tabEnd"> </span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Class and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>class </code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationManager.BufferLedger.html" title="class in org.apache.arrow.memory">AllocationManager.BufferLedger</a></span></code>
+<div class="block">The reference manager that binds an allocator manager to a particular BaseAllocator.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
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+<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
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http://git-wip-us.apache.org/repos/asf/arrow-site/blob/355ede33/docs/java/org/apache/arrow/memory/AllocationReservation.html
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diff --git a/docs/java/org/apache/arrow/memory/AllocationReservation.html b/docs/java/org/apache/arrow/memory/AllocationReservation.html
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+++ b/docs/java/org/apache/arrow/memory/AllocationReservation.html
@@ -0,0 +1,380 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<div class="subTitle">org.apache.arrow.memory</div>
+<h2 title="Interface AllocationReservation" class="title">Interface AllocationReservation</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></dd>
+</dl>
+<dl>
+<dt>All Known Implementing Classes:</dt>
+<dd><a href="../../../../org/apache/arrow/memory/BaseAllocator.Reservation.html" title="class in org.apache.arrow.memory">BaseAllocator.Reservation</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public interface <span class="typeNameLabel">AllocationReservation</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></pre>
+<div class="block">Supports cumulative allocation reservation. Clients may increase the size of the reservation
+ repeatedly until they
+ call for an allocation of the current total size. The reservation can only be used once, and
+ will throw an exception
+ if it is used more than once.
+ <p>
+ For the purposes of airtight memory accounting, the reservation must be close()d whether it is
+ used or not.
+ This is not threadsafe.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========== METHOD SUMMARY =========== -->
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+<!-- -->
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+<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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </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>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#add-int-">add</a></span>(int nBytes)</code>
+<div class="block">Add to the current reservation.</div>
+</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code><a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#allocateBuffer--">allocateBuffer</a></span>()</code>
+<div class="block">Allocate a buffer whose size is the total of all the add()s made.</div>
+</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#close--">close</a></span>()</code> </td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#getSize--">getSize</a></span>()</code>
+<div class="block">Get the current size of the reservation (the sum of all the add()s).</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#isClosed--">isClosed</a></span>()</code>
+<div class="block">Return whether or not the reservation has been closed.</div>
+</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#isUsed--">isUsed</a></span>()</code>
+<div class="block">Return whether or not the reservation has been used.</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code>boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/arrow/memory/AllocationReservation.html#reserve-int-">reserve</a></span>(int nBytes)</code>
+<div class="block">Requests a reservation of additional space.</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">
+<!-- -->
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+<h3>Method Detail</h3>
+<a name="add-int-">
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+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>add</h4>
+<pre>boolean add(int nBytes)</pre>
+<div class="block">Add to the current reservation.
+ <p>
+ <p>Adding may fail if the allocator is not allowed to consume any more space.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>nBytes</code> - the number of bytes to add</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>true if the addition is possible, false otherwise</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if called after buffer() is used to allocate the reservation</dd>
+</dl>
+</li>
+</ul>
+<a name="reserve-int-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>reserve</h4>
+<pre>boolean reserve(int nBytes)</pre>
+<div class="block">Requests a reservation of additional space.
+ <p>
+ <p>The implementation of the allocator's inner class provides this.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>nBytes</code> - the amount to reserve</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>true if the reservation can be satisfied, false otherwise</dd>
+</dl>
+</li>
+</ul>
+<a name="allocateBuffer--">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>allocateBuffer</h4>
+<pre><a href="../../../../io/netty/buffer/ArrowBuf.html" title="class in io.netty.buffer">ArrowBuf</a> allocateBuffer()</pre>
+<div class="block">Allocate a buffer whose size is the total of all the add()s made.
+ <p>
+ <p>The allocation request can still fail, even if the amount of space
+ requested is available, if the allocation cannot be made contiguously.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the buffer, or null, if the request cannot be satisfied</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if called called more than once</dd>
+</dl>
+</li>
+</ul>
+<a name="getSize--">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getSize</h4>
+<pre>int getSize()</pre>
+<div class="block">Get the current size of the reservation (the sum of all the add()s).</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>size of the current reservation</dd>
+</dl>
+</li>
+</ul>
+<a name="isUsed--">
+<!-- -->
+</a>
+<ul class="blockList">
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+<div class="block">Return whether or not the reservation has been closed.</div>
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+<div class="subTitle">org.apache.arrow.memory</div>
+<h2 title="Class AllocatorClosedException" class="title">Class AllocatorClosedException</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/Throwable.html?is-external=true" title="class or interface in java.lang">java.lang.Throwable</a></li>
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+<ul class="inheritance">
+<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">java.lang.Exception</a></li>
+<li>
+<ul class="inheritance">
+<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/RuntimeException.html?is-external=true" title="class or interface in java.lang">java.lang.RuntimeException</a></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.arrow.memory.AllocatorClosedException</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
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+<div class="description">
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+<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></dd>
+</dl>
+<hr>
+<br>
+<pre>public class <span class="typeNameLabel">AllocatorClosedException</span>
+extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/RuntimeException.html?is-external=true" title="class or interface in java.lang">RuntimeException</a></pre>
+<div class="block">Exception thrown when a closed BufferAllocator is used. Note
+ this is an unchecked exception.</div>
+<dl>
+<dt><span class="seeLabel">See Also:</span></dt>
+<dd><a href="../../../../serialized-form.html#org.apache.arrow.memory.AllocatorClosedException">Serialized Form</a></dd>
+</dl>
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+<caption><span>Constructors</span><span class="tabEnd"> </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/arrow/memory/AllocatorClosedException.html#AllocatorClosedException-java.lang.String-">AllocatorClosedException</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> message)</code> </td>
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+<h4>AllocatorClosedException</h4>
+<pre>public AllocatorClosedException(<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> message)</pre>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>message</code> - string associated with the cause</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
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