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<h2 title="Uses of Interface org.apache.hadoop.hbase.io.encoding.DataBlockEncoder" class="title">Uses of Interface<br>org.apache.hadoop.hbase.io.encoding.DataBlockEncoder</h2>
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing packages, and an explanation">
<caption><span>Packages that use <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.hbase.io.encoding">org.apache.hadoop.hbase.io.encoding</a></td>
<td class="colLast">&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.hbase.io.hfile">org.apache.hadoop.hbase.io.hfile</a></td>
<td class="colLast">
<div class="block">Provides implementations of <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a> and HFile
<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCache.html" title="interface in org.apache.hadoop.hbase.io.hfile"><code>BlockCache</code></a>.</div>
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<h3>Uses of <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a> in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a> that implement <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/AbstractDataBlockEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">AbstractDataBlockEncoder</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">BufferedDataBlockEncoder</a></span></code>
<div class="block">Base class for all data block encoders that use a buffer.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">CopyKeyDataBlockEncoder</a></span></code>
<div class="block">Just copy data, do not do any kind of compression.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DiffKeyDeltaEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">DiffKeyDeltaEncoder</a></span></code>
<div class="block">Compress using:
- store size of common prefix
- save column family once, it is same within HFile
- use integer compression for key, value and prefix (7-bit encoding)
- use bits to avoid duplication key length, value length
and type if it same as previous
- store in 3 bits length of timestamp field
- allow diff in timestamp instead of actual value
Format:
- 1 byte: flag
- 1-5 bytes: key length (only if FLAG_SAME_KEY_LENGTH is not set in flag)
- 1-5 bytes: value length (only if FLAG_SAME_VALUE_LENGTH is not set in flag)
- 1-5 bytes: prefix length
- ...</div>
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<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">FastDiffDeltaEncoder</a></span></code>
<div class="block">Encoder similar to <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DiffKeyDeltaEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding"><code>DiffKeyDeltaEncoder</code></a> but supposedly faster.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html" title="class in org.apache.hadoop.hbase.io.encoding">PrefixKeyDeltaEncoder</a></span></code>
<div class="block">Compress key by storing size of common prefix with previous KeyValue
and storing raw size of rest.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.html" title="class in org.apache.hadoop.hbase.io.encoding">RowIndexCodecV1</a></span></code>
<div class="block">Store cells following every row's start offset, so we can binary search to a row's cells.</div>
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</tbody>
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation">
<caption><span>Fields in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a> declared as <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">EncodedDataBlock.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.html#dataBlockEncoder">dataBlockEncoder</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">DataBlockEncoding.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html#encoder">encoder</a></span></code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a> that return <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected static <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">DataBlockEncoding.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html#createEncoder-java.lang.String-">createEncoder</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>&nbsp;fullyQualifiedClassName)</code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">DataBlockEncoding.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html#getDataBlockEncoderById-short-">getDataBlockEncoderById</a></span>(short&nbsp;encoderId)</code>
<div class="block">Find and create data block encoder for given id;</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">DataBlockEncoding.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html#getEncoder--">getEncoder</a></span>()</code>
<div class="block">Return new data block encoder for given algorithm type.</div>
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</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a> with parameters of type <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><span class="typeNameLabel">DataBlockEncoding.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html#isCorrectEncoder-org.apache.hadoop.hbase.io.encoding.DataBlockEncoder-short-">isCorrectEncoder</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a>&nbsp;encoder,
short&nbsp;encoderId)</code>
<div class="block">Check if given encoder has this id.</div>
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</tbody>
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing constructors, and an explanation">
<caption><span>Constructors in <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/package-summary.html">org.apache.hadoop.hbase.io.encoding</a> with parameters of type <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.html#EncodedDataBlock-org.apache.hadoop.hbase.io.encoding.DataBlockEncoder-org.apache.hadoop.hbase.io.encoding.DataBlockEncoding-byte:A-org.apache.hadoop.hbase.io.hfile.HFileContext-">EncodedDataBlock</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a>&nbsp;dataBlockEncoder,
<a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html" title="enum in org.apache.hadoop.hbase.io.encoding">DataBlockEncoding</a>&nbsp;encoding,
byte[]&nbsp;rawKVs,
<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a>&nbsp;meta)</code>
<div class="block">Create a buffer which will be encoded using dataBlockEncoder.</div>
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<h3>Uses of <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a> in <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/package-summary.html">org.apache.hadoop.hbase.io.hfile</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation">
<caption><span>Fields in <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/package-summary.html">org.apache.hadoop.hbase.io.hfile</a> declared as <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
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<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.encoding">DataBlockEncoder</a></code></td>
<td class="colLast"><span class="typeNameLabel">HFileReaderImpl.EncodedScanner.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.EncodedScanner.html#dataBlockEncoder">dataBlockEncoder</a></span></code>&nbsp;</td>
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