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| <div class="subTitle">org.apache.hadoop.hbase.io.compress</div> |
| <h2 title="Enum Compression.Algorithm" class="title">Enum Compression.Algorithm</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><<a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a>></li> |
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| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.io.compress.Compression.Algorithm</li> |
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| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.html" title="class in org.apache.hadoop.hbase.io.compress">Compression</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Public |
| public static enum <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.html#line.146">Compression.Algorithm</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a>></pre> |
| <div class="block">Compression algorithms. The ordinal of these cannot change or else you risk breaking all |
| existing HFiles out there. Even the ones that are not compressed! (They use the NONE algorithm)</div> |
| </li> |
| </ul> |
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| <h3>Enum Constant Summary</h3> |
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| <caption><span>Enum Constants</span><span class="tabEnd"> </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/hadoop/hbase/io/compress/Compression.Algorithm.html#BROTLI">BROTLI</a></span></code> </td> |
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| <tr class="rowColor"> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#SNAPPY">SNAPPY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#ZSTD">ZSTD</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <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>private <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/io/compress/Compression.Algorithm.html#compressName">compressName</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#conf">conf</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <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/io/compress/Compression.Algorithm.html#confDefault">confDefault</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <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/io/compress/Compression.Algorithm.html#confKey">confKey</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#DATA_IBUF_SIZE">DATA_IBUF_SIZE</a></span></code> |
| <div class="block">data input buffer size to absorb small reads from application.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#DATA_OBUF_SIZE">DATA_OBUF_SIZE</a></span></code> |
| <div class="block">data output buffer size to absorb small writes from application.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#createCompressionStream-java.io.OutputStream-org.apache.hadoop.io.compress.Compressor-int-">createCompressionStream</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a> downStream, |
| org.apache.hadoop.io.compress.Compressor compressor, |
| int downStreamBufferSize)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#createDecompressionStream-java.io.InputStream-org.apache.hadoop.io.compress.Decompressor-int-">createDecompressionStream</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> downStream, |
| org.apache.hadoop.io.compress.Decompressor decompressor, |
| int downStreamBufferSize)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>org.apache.hadoop.io.compress.CompressionOutputStream</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#createPlainCompressionStream-java.io.OutputStream-org.apache.hadoop.io.compress.Compressor-">createPlainCompressionStream</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a> downStream, |
| org.apache.hadoop.io.compress.Compressor compressor)</code> |
| <div class="block">Creates a compression stream without any additional wrapping into buffering streams.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>(package private) abstract org.apache.hadoop.io.compress.CompressionCodec</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#getCodec-org.apache.hadoop.conf.Configuration-">getCodec</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>org.apache.hadoop.io.compress.Compressor</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#getCompressor--">getCompressor</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>org.apache.hadoop.io.compress.Decompressor</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#getDecompressor--">getDecompressor</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#getName--">getName</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>abstract org.apache.hadoop.io.compress.CompressionCodec</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#reload-org.apache.hadoop.conf.Configuration-">reload</a></span>(org.apache.hadoop.conf.Configuration conf)</code> |
| <div class="block">Reload configuration for the given algorithm.</div> |
| </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/hadoop/hbase/io/compress/Compression.Algorithm.html#returnCompressor-org.apache.hadoop.io.compress.Compressor-">returnCompressor</a></span>(org.apache.hadoop.io.compress.Compressor compressor)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#returnDecompressor-org.apache.hadoop.io.compress.Decompressor-">returnDecompressor</a></span>(org.apache.hadoop.io.compress.Decompressor decompressor)</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static <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/io/compress/Compression.Algorithm.html#valueOf-java.lang.String-">valueOf</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> name)</code> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>static <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/io/compress/Compression.Algorithm.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> |
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| </a> |
| <h3>Field Detail</h3> |
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| <h4>conf</h4> |
| <pre>private final org.apache.hadoop.conf.Configuration <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.390">conf</a></pre> |
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| <pre>private final <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/io/compress/Compression.Algorithm.html#line.393">confDefault</a></pre> |
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| <h4>DATA_IBUF_SIZE</h4> |
| <pre>private static final int <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.395">DATA_IBUF_SIZE</a></pre> |
| <div class="block">data input buffer size to absorb small reads from application.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.io.compress.Compression.Algorithm.DATA_IBUF_SIZE">Constant Field Values</a></dd> |
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| <pre>private static final int <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.397">DATA_OBUF_SIZE</a></pre> |
| <div class="block">data output buffer size to absorb small writes from application.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.io.compress.Compression.Algorithm.DATA_OBUF_SIZE">Constant Field Values</a></dd> |
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| <pre>public static <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/io/compress/Compression.Algorithm.html#line.45">values</a>()</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 (Compression.Algorithm c : Compression.Algorithm.values()) |
| 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> |
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| <pre>public static <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/io/compress/Compression.Algorithm.html#line.45">valueOf</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> name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
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| <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="https://docs.oracle.com/javase/8/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> |
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| <h4>getCodec</h4> |
| <pre>abstract org.apache.hadoop.io.compress.CompressionCodec <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.407">getCodec</a>(org.apache.hadoop.conf.Configuration conf)</pre> |
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| <a name="reload-org.apache.hadoop.conf.Configuration-"> |
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| </a> |
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| <h4>reload</h4> |
| <pre>public abstract org.apache.hadoop.io.compress.CompressionCodec <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.418">reload</a>(org.apache.hadoop.conf.Configuration conf)</pre> |
| <div class="block">Reload configuration for the given algorithm. |
| <p> |
| NOTE: Experts only. This can only be done safely during process startup, before the |
| algorithm's codecs are in use. If the codec implementation is changed, the new implementation |
| may not be fully compatible with what was loaded at static initialization time, leading to |
| potential data corruption. Mostly used by unit tests.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - configuration</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createDecompressionStream-java.io.InputStream-org.apache.hadoop.io.compress.Decompressor-int-"> |
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| <h4>createDecompressionStream</h4> |
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| org.apache.hadoop.io.compress.Decompressor decompressor, |
| int downStreamBufferSize) |
| 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="throwsLabel">Throws:</span></dt> |
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| org.apache.hadoop.io.compress.Compressor compressor, |
| int downStreamBufferSize) |
| 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="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>createPlainCompressionStream</h4> |
| <pre>public org.apache.hadoop.io.compress.CompressionOutputStream <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.450">createPlainCompressionStream</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a> downStream, |
| org.apache.hadoop.io.compress.Compressor compressor) |
| 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">Creates a compression stream without any additional wrapping into buffering streams.</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>getCompressor</h4> |
| <pre>public org.apache.hadoop.io.compress.Compressor <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.457">getCompressor</a>()</pre> |
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| <h4>returnCompressor</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.474">returnCompressor</a>(org.apache.hadoop.io.compress.Compressor compressor)</pre> |
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| <a name="getDecompressor--"> |
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| <h4>getDecompressor</h4> |
| <pre>public org.apache.hadoop.io.compress.Decompressor <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.481">getDecompressor</a>()</pre> |
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| <h4>returnDecompressor</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html#line.500">returnDecompressor</a>(org.apache.hadoop.io.compress.Decompressor decompressor)</pre> |
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| <h4>getName</h4> |
| <pre>public <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/io/compress/Compression.Algorithm.html#line.511">getName</a>()</pre> |
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