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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.wal</div> |
| <h2 title="Class ReaderBase" class="title">Class ReaderBase</h2> |
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| <li>org.apache.hadoop.hbase.regionserver.wal.ReaderBase</li> |
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| <pre>@InterfaceAudience.LimitedPrivate(value={"Coprocesssor","Phoenix"}) |
| public abstract class <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.39">ReaderBase</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../../org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html" title="interface in org.apache.hadoop.hbase.wal">AbstractFSWALProvider.Reader</a></pre> |
| </li> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/CompressionContext.html" title="class in org.apache.hadoop.hbase.regionserver.wal">CompressionContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#compressionContext">compressionContext</a></span></code> |
| <div class="block">Compression context to use reading.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#conf">conf</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#edit">edit</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#emptyCompressionContext">emptyCompressionContext</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#fileLength">fileLength</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.FileSystem</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#fs">fs</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#path">path</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#ReaderBase--">ReaderBase</a></span>()</code> |
| <div class="block">Default constructor.</div> |
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| <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><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>protected abstract <a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#getValueCompressionAlgorithm--">getValueCompressionAlgorithm</a></span>()</code> </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#hasCompression--">hasCompression</a></span>()</code> </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#hasTagCompression--">hasTagCompression</a></span>()</code> </td> |
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| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#hasValueCompression--">hasValueCompression</a></span>()</code> </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/hadoop/hbase/regionserver/wal/ReaderBase.html#init-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.FSDataInputStream-">init</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FSDataInputStream stream)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#initAfterCompression--">initAfterCompression</a></span>()</code> |
| <div class="block">Initializes the compression after the shared stuff has been initialized.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#initAfterCompression-java.lang.String-">initAfterCompression</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> cellCodecClsName)</code> |
| <div class="block">Initializes the compression after the shared stuff has been initialized.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#initReader-org.apache.hadoop.fs.FSDataInputStream-">initReader</a></span>(org.apache.hadoop.fs.FSDataInputStream stream)</code> |
| <div class="block">Initializes the log reader with a particular stream (may be null).</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#next--">next</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#next-org.apache.hadoop.hbase.wal.WAL.Entry-">next</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> reuse)</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>protected abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#readNext-org.apache.hadoop.hbase.wal.WAL.Entry-">readNext</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> e)</code> |
| <div class="block">Read next entry.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#seek-long-">seek</a></span>(long pos)</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#seekOnFs-long-">seekOnFs</a></span>(long pos)</code> |
| <div class="block">Performs a filesystem-level seek to a certain position in an underlying file.</div> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html#getPosition--">getPosition</a>, <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html#reset--">reset</a></code></li> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code></li> |
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| <h4>LOG</h4> |
| <pre>private static final org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.40">LOG</a></pre> |
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| <h4>conf</h4> |
| <pre>protected org.apache.hadoop.conf.Configuration <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.41">conf</a></pre> |
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| <h4>compressionContext</h4> |
| <pre>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/CompressionContext.html" title="class in org.apache.hadoop.hbase.regionserver.wal">CompressionContext</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.49">compressionContext</a></pre> |
| <div class="block">Compression context to use reading. Can be null if no compression.</div> |
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| <h4>emptyCompressionContext</h4> |
| <pre>protected boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.50">emptyCompressionContext</a></pre> |
| </li> |
| </ul> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ReaderBase--"> |
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| </a> |
| <ul class="blockListLast"> |
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| <h4>ReaderBase</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.55">ReaderBase</a>()</pre> |
| <div class="block">Default constructor.</div> |
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| <ul class="blockList"> |
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| <h3>Method Detail</h3> |
| <a name="init-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.FSDataInputStream-"> |
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| <h4>init</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.59">init</a>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FSDataInputStream stream) |
| throws <a href="https://docs.oracle.com/javase/8/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="../../../../../../org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html#init-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.FSDataInputStream-">init</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html" title="interface in org.apache.hadoop.hbase.wal">AbstractFSWALProvider.Reader</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - File system.</dd> |
| <dd><code>path</code> - Path.</dd> |
| <dd><code>conf</code> - Configuration.</dd> |
| <dd><code>stream</code> - Input stream that may have been pre-opened by the caller; may be null.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>next</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.92">next</a>() |
| throws <a href="https://docs.oracle.com/javase/8/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="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html#next--">next</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html" title="interface in org.apache.hadoop.hbase.wal">WAL.Reader</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/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="next-org.apache.hadoop.hbase.wal.WAL.Entry-"> |
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| <ul class="blockList"> |
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| <h4>next</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.97">next</a>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> reuse) |
| throws <a href="https://docs.oracle.com/javase/8/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="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html#next-org.apache.hadoop.hbase.wal.WAL.Entry-">next</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html" title="interface in org.apache.hadoop.hbase.wal">WAL.Reader</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/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="seek-long-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>seek</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.123">seek</a>(long pos) |
| throws <a href="https://docs.oracle.com/javase/8/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="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html#seek-long-">seek</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html" title="interface in org.apache.hadoop.hbase.wal">WAL.Reader</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
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| <a name="initReader-org.apache.hadoop.fs.FSDataInputStream-"> |
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| <h4>initReader</h4> |
| <pre>protected abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.140">initReader</a>(org.apache.hadoop.fs.FSDataInputStream stream) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Initializes the log reader with a particular stream (may be null). |
| Reader assumes ownership of the stream if not null and may use it. Called once.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the class name of cell Codec, null if such information is not available</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>initAfterCompression</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.145">initAfterCompression</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Initializes the compression after the shared stuff has been initialized. Called once.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>initAfterCompression</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.151">initAfterCompression</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> cellCodecClsName) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Initializes the compression after the shared stuff has been initialized. Called once.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cellCodecClsName</code> - class name of cell Codec</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>hasCompression</h4> |
| <pre>protected abstract boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.155">hasCompression</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether compression is enabled for this log.</dd> |
| </dl> |
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| <h4>hasTagCompression</h4> |
| <pre>protected abstract boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.160">hasTagCompression</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether tag compression is enabled for this log.</dd> |
| </dl> |
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| <h4>hasValueCompression</h4> |
| <pre>protected abstract boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.165">hasValueCompression</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether value compression is enabled for this log.</dd> |
| </dl> |
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| </ul> |
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| <h4>getValueCompressionAlgorithm</h4> |
| <pre>protected abstract <a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.170">getValueCompressionAlgorithm</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Value compression algorithm for this log.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readNext-org.apache.hadoop.hbase.wal.WAL.Entry-"> |
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| <h4>readNext</h4> |
| <pre>protected abstract boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.177">readNext</a>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> e) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Read next entry.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>e</code> - The entry to read into.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether there was anything to read.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <h4>seekOnFs</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ReaderBase.html#line.182">seekOnFs</a>(long pos) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Performs a filesystem-level seek to a certain position in an underlying file.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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