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media/docs/doc/reference/com/google/android/exoplayer2/upstream/CachedRegionTracker.html
tonihei 468e4aa0c4 Update Javadoc for 2.16.0 
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<title>CachedRegionTracker (ExoPlayer library)</title>
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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.google.android.exoplayer2.upstream</a></div>
<h2 title="Class CachedRegionTracker" class="title">Class CachedRegionTracker</h2>
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<div class="contentContainer">
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<li><a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">java.lang.Object</a></li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="cache/Cache.Listener.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache.Listener</a></code></dd>
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<hr>
<pre>public final class <span class="typeNameLabel">CachedRegionTracker</span>
extends <a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a>
implements <a href="cache/Cache.Listener.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache.Listener</a></pre>
<div class="block">Utility class for efficiently tracking regions of data that are stored in a <a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache"><code>Cache</code></a> for a
given cache key.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
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</tr>
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<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CACHED_TO_END">CACHED_TO_END</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NOT_CACHED">NOT_CACHED</a></span></code></th>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.google.android.exoplayer2.upstream.cache.Cache,java.lang.String,com.google.android.exoplayer2.extractor.ChunkIndex)">CachedRegionTracker</a></span>&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;cacheKey,
<a href="../extractor/ChunkIndex.html" title="class in com.google.android.exoplayer2.extractor">ChunkIndex</a>&nbsp;chunkIndex)</code></th>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRegionEndTimeMs(long)">getRegionEndTimeMs</a></span>&#8203;(long&nbsp;byteOffset)</code></th>
<td class="colLast">
<div class="block">When provided with a byte offset, this method locates the cached region within which the offset
falls, and returns the approximate end position in milliseconds of that region.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onSpanAdded(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanAdded</a></span>&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;span)</code></th>
<td class="colLast">
<div class="block">Called when a <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is added to the cache.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onSpanRemoved(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanRemoved</a></span>&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;span)</code></th>
<td class="colLast">
<div class="block">Called when a <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is removed from the cache.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onSpanTouched(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanTouched</a></span>&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;oldSpan,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;newSpan)</code></th>
<td class="colLast">
<div class="block">Called when an existing <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is touched, causing it to be replaced.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#release()">release</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></h3>
<code><a href="https://developer.android.com/reference/java/lang/Object.html#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink" target="_top">wait</a></code></li>
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<h4>NOT_CACHED</h4>
<pre>public static final&nbsp;int NOT_CACHED</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#com.google.android.exoplayer2.upstream.CachedRegionTracker.NOT_CACHED">Constant Field Values</a></dd>
</dl>
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<h4>CACHED_TO_END</h4>
<pre>public static final&nbsp;int CACHED_TO_END</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#com.google.android.exoplayer2.upstream.CachedRegionTracker.CACHED_TO_END">Constant Field Values</a></dd>
</dl>
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<h3>Constructor Detail</h3>
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<h4>CachedRegionTracker</h4>
<pre>public&nbsp;CachedRegionTracker&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;cacheKey,
<a href="../extractor/ChunkIndex.html" title="class in com.google.android.exoplayer2.extractor">ChunkIndex</a>&nbsp;chunkIndex)</pre>
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<h4>release</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;release()</pre>
</li>
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<a id="getRegionEndTimeMs(long)">
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<h4>getRegionEndTimeMs</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;getRegionEndTimeMs&#8203;(long&nbsp;byteOffset)</pre>
<div class="block">When provided with a byte offset, this method locates the cached region within which the offset
falls, and returns the approximate end position in milliseconds of that region. If the byte
offset does not fall within a cached region then <a href="#NOT_CACHED"><code>NOT_CACHED</code></a> is returned. If the cached
region extends to the end of the stream, <a href="#CACHED_TO_END"><code>CACHED_TO_END</code></a> is returned.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>byteOffset</code> - The byte offset in the underlying stream.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The end position of the corresponding cache region, <a href="#NOT_CACHED"><code>NOT_CACHED</code></a>, or <a href="#CACHED_TO_END"><code>CACHED_TO_END</code></a>.</dd>
</dl>
</li>
</ul>
<a id="onSpanAdded(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">
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<h4>onSpanAdded</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;onSpanAdded&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;span)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="cache/Cache.Listener.html#onSpanAdded(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">Cache.Listener</a></code></span></div>
<div class="block">Called when a <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is added to the cache.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="cache/Cache.Listener.html#onSpanAdded(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanAdded</a></code>&nbsp;in interface&nbsp;<code><a href="cache/Cache.Listener.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache.Listener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cache</code> - The source of the event.</dd>
<dd><code>span</code> - The added <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a>.</dd>
</dl>
</li>
</ul>
<a id="onSpanRemoved(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">
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<h4>onSpanRemoved</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;onSpanRemoved&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;span)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="cache/Cache.Listener.html#onSpanRemoved(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">Cache.Listener</a></code></span></div>
<div class="block">Called when a <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is removed from the cache.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="cache/Cache.Listener.html#onSpanRemoved(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanRemoved</a></code>&nbsp;in interface&nbsp;<code><a href="cache/Cache.Listener.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache.Listener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cache</code> - The source of the event.</dd>
<dd><code>span</code> - The removed <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a>.</dd>
</dl>
</li>
</ul>
<a id="onSpanTouched(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan,com.google.android.exoplayer2.upstream.cache.CacheSpan)">
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<h4>onSpanTouched</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;onSpanTouched&#8203;(<a href="cache/Cache.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache</a>&nbsp;cache,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;oldSpan,
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheSpan</a>&nbsp;newSpan)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="cache/Cache.Listener.html#onSpanTouched(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan,com.google.android.exoplayer2.upstream.cache.CacheSpan)">Cache.Listener</a></code></span></div>
<div class="block">Called when an existing <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is touched, causing it to be replaced. The new
<a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a> is guaranteed to represent the same data as the one it replaces, however
<a href="cache/CacheSpan.html#file"><code>CacheSpan.file</code></a> and <a href="cache/CacheSpan.html#lastTouchTimestamp"><code>CacheSpan.lastTouchTimestamp</code></a> may have changed.
<p>Note that for span replacement, <a href="cache/Cache.Listener.html#onSpanAdded(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)"><code>Cache.Listener.onSpanAdded(Cache, CacheSpan)</code></a> and <a href="cache/Cache.Listener.html#onSpanRemoved(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan)"><code>Cache.Listener.onSpanRemoved(Cache, CacheSpan)</code></a> are not called in addition to this method.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="cache/Cache.Listener.html#onSpanTouched(com.google.android.exoplayer2.upstream.cache.Cache,com.google.android.exoplayer2.upstream.cache.CacheSpan,com.google.android.exoplayer2.upstream.cache.CacheSpan)">onSpanTouched</a></code>&nbsp;in interface&nbsp;<code><a href="cache/Cache.Listener.html" title="interface in com.google.android.exoplayer2.upstream.cache">Cache.Listener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cache</code> - The source of the event.</dd>
<dd><code>oldSpan</code> - The old <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a>, which has been removed from the cache.</dd>
<dd><code>newSpan</code> - The new <a href="cache/CacheSpan.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheSpan</code></a>, which has been added to the cache.</dd>
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