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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.hadoop.hbase.io.hfile</a></div> |
| <h1 title="Class HFileBlock.Writer" class="title">Class HFileBlock.Writer</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance">org.apache.hadoop.hbase.io.hfile.HFileBlock.Writer</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="../../regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>Enclosing class:</dt> |
| <dd><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">static class </span><span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.html#line-745">HFileBlock.Writer</a></span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a> |
| implements <a href="../../regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></span></div> |
| <div class="block">Unified version 2 <a href="HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a> block writer. The intended usage pattern is as follows: |
| <ol> |
| <li>Construct an <a href="HFileBlock.Writer.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFileBlock.Writer</code></a>, providing a compression algorithm. |
| <li>Call <a href="#startWriting(org.apache.hadoop.hbase.io.hfile.BlockType)"><code>startWriting(org.apache.hadoop.hbase.io.hfile.BlockType)</code></a> and get a data stream to write to. |
| <li>Write your data into the stream. |
| <li>Call Writer#writeHeaderAndData(FSDataOutputStream) as many times as you need to. store the |
| serialized block into an external stream. |
| <li>Repeat to write more blocks. |
| </ol> |
| <p></div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <li> |
| <section class="nested-class-summary" id="nested-class-summary"> |
| <h2>Nested Class Summary</h2> |
| <div class="caption"><span>Nested Classes</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>private static enum </code></div> |
| <div class="col-second even-row-color"><code><a href="HFileBlock.Writer.State.html" class="type-name-link" title="enum class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer.State</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>private final <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#allocator" class="member-name-link">allocator</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private <a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#baosInMemory" class="member-name-link">baosInMemory</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The stream we use to accumulate data into a block in an uncompressed format.</div> |
| </div> |
| <div class="col-first even-row-color"><code>private <a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#blockType" class="member-name-link">blockType</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Current block type.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private <a href="BlockCompressedSizePredicator.html" title="interface in org.apache.hadoop.hbase.io.hfile">BlockCompressedSizePredicator</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#compressedSizePredicator" class="member-name-link">compressedSizePredicator</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private final <a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#dataBlockEncoder" class="member-name-link">dataBlockEncoder</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Data block encoder used for data blocks</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private <a href="../encoding/HFileBlockEncodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockEncodingContext</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#dataBlockEncodingCtx" class="member-name-link">dataBlockEncodingCtx</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private <a href="../encoding/HFileBlockDefaultEncodingContext.html" title="class in org.apache.hadoop.hbase.io.encoding">HFileBlockDefaultEncodingContext</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#defaultBlockEncodingCtx" class="member-name-link">defaultBlockEncodingCtx</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">block encoding context for non-data blocks</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private <a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#fileContext" class="member-name-link">fileContext</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Meta data that holds information about the hfileblock</div> |
| </div> |
| <div class="col-first even-row-color"><code>private int</code></div> |
| <div class="col-second even-row-color"><code><a href="#maxSizeUnCompressed" class="member-name-link">maxSizeUnCompressed</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private <a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#onDiskBlockBytesWithHeader" class="member-name-link">onDiskBlockBytesWithHeader</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Bytes to be written to the file system, including the header.</div> |
| </div> |
| <div class="col-first even-row-color"><code>private byte[]</code></div> |
| <div class="col-second even-row-color"><code><a href="#onDiskChecksum" class="member-name-link">onDiskChecksum</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The size of the checksum data on disk.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private long</code></div> |
| <div class="col-second odd-row-color"><code><a href="#prevOffset" class="member-name-link">prevOffset</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The offset of the previous block of the same type</div> |
| </div> |
| <div class="col-first even-row-color"><code>private long[]</code></div> |
| <div class="col-second even-row-color"><code><a href="#prevOffsetByType" class="member-name-link">prevOffsetByType</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Offset of previous block by block type.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private long</code></div> |
| <div class="col-second odd-row-color"><code><a href="#startOffset" class="member-name-link">startOffset</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Current block's start offset in the <a href="HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>private <a href="HFileBlock.Writer.State.html" title="enum class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer.State</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#state" class="member-name-link">state</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Writer state.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#userDataStream" class="member-name-link">userDataStream</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">A stream that we write uncompressed bytes to, which compresses them and writes them to |
| <a href="#baosInMemory"><code>baosInMemory</code></a>.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor-summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.hadoop.conf.Configuration,org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder,org.apache.hadoop.hbase.io.hfile.HFileContext)" class="member-name-link">Writer</a><wbr>(org.apache.hadoop.conf.Configuration conf, |
| <a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> dataBlockEncoder, |
| <a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext)</code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(org.apache.hadoop.conf.Configuration,org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder,org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.ByteBuffAllocator,int)" class="member-name-link">Writer</a><wbr>(org.apache.hadoop.conf.Configuration conf, |
| <a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> dataBlockEncoder, |
| <a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext, |
| <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a> allocator, |
| int maxSizeUnCompressed)</code></div> |
| <div class="col-last odd-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#beforeShipped()" class="member-name-link">beforeShipped</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">The action that needs to be performed before <a href="../../regionserver/Shipper.html#shipped()"><code>Shipper.shipped()</code></a> is performed</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#blockSizeWritten()" class="member-name-link">blockSizeWritten</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns the number of bytes written into the current block so far, or zero if not writing the |
| block at the moment.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#checkBoundariesWithPredicate()" class="member-name-link">checkBoundariesWithPredicate</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#cloneOnDiskBufferWithHeader()" class="member-name-link">cloneOnDiskBufferWithHeader</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Clones the header followed by the on-disk (compressed/encoded/encrypted) data.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#cloneUncompressedBufferWithHeader()" class="member-name-link">cloneUncompressedBufferWithHeader</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Clones the header followed by the uncompressed data, even if using compression.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#encodedBlockSizeWritten()" class="member-name-link">encodedBlockSizeWritten</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns the number of bytes written into the current block so far, or zero if not writing the |
| block at the moment.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#ensureBlockReady()" class="member-name-link">ensureBlockReady</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Transitions the block writer from the "writing" state to the "block ready" state.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#expectState(org.apache.hadoop.hbase.io.hfile.HFileBlock.Writer.State)" class="member-name-link">expectState</a><wbr>(<a href="HFileBlock.Writer.State.html" title="enum class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer.State</a> expectedState)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#finishBlock()" class="member-name-link">finishBlock</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Finish up writing of the block.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#finishBlockAndWriteHeaderAndData(java.io.DataOutputStream)" class="member-name-link">finishBlockAndWriteHeaderAndData</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a> out)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Writes the header and the compressed data of this block (or uncompressed data when not using |
| compression) into the given stream.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) <a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getBlockForCaching(org.apache.hadoop.hbase.io.hfile.CacheConfig)" class="member-name-link">getBlockForCaching</a><wbr>(<a href="CacheConfig.html" title="class in org.apache.hadoop.hbase.io.hfile">CacheConfig</a> cacheConf)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Creates a new HFileBlock.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) <a href="../encoding/EncodingState.html" title="class in org.apache.hadoop.hbase.io.encoding">EncodingState</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getEncodingState()" class="member-name-link">getEncodingState</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) byte[]</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getHeaderAndDataForTest()" class="member-name-link">getHeaderAndDataForTest</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns the header or the compressed data (or uncompressed data when not using compression) |
| as a byte array.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) int</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getOnDiskSizeWithHeader()" class="member-name-link">getOnDiskSizeWithHeader</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns the on-disk size of the block.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) int</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getOnDiskSizeWithoutHeader()" class="member-name-link">getOnDiskSizeWithoutHeader</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns the on-disk size of the data portion of the block.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getUncompressedSizeWithHeader()" class="member-name-link">getUncompressedSizeWithHeader</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">The uncompressed size of the block data, including header size.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) int</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getUncompressedSizeWithoutHeader()" class="member-name-link">getUncompressedSizeWithoutHeader</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">The uncompressed size of the block data.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isWriting()" class="member-name-link">isWriting</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns true if a block is being written</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#putHeader(byte%5B%5D,int,int,int,int)" class="member-name-link">putHeader</a><wbr>(byte[] dest, |
| int offset, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Put the header into the given byte array at the given offset.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#putHeader(org.apache.hadoop.hbase.io.ByteArrayOutputStream,int,int,int)" class="member-name-link">putHeader</a><wbr>(<a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a> dest, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#putHeader(org.apache.hadoop.hbase.nio.ByteBuff,int,int,int)" class="member-name-link">putHeader</a><wbr>(<a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> buff, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#release()" class="member-name-link">release</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Releases resources used by this writer.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#startWriting(org.apache.hadoop.hbase.io.hfile.BlockType)" class="member-name-link">startWriting</a><wbr>(<a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a> newBlockType)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Starts writing into the block.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#write(org.apache.hadoop.hbase.ExtendedCell)" class="member-name-link">write</a><wbr>(<a href="../../ExtendedCell.html" title="interface in org.apache.hadoop.hbase">ExtendedCell</a> cell)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Writes the Cell to this block</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#writeBlock(org.apache.hadoop.hbase.io.hfile.HFileBlock.BlockWritable,org.apache.hadoop.fs.FSDataOutputStream)" class="member-name-link">writeBlock</a><wbr>(<a href="HFileBlock.BlockWritable.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockWritable</a> bw, |
| org.apache.hadoop.fs.FSDataOutputStream out)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Takes the given <a href="HFileBlock.BlockWritable.html" title="interface in org.apache.hadoop.hbase.io.hfile"><code>HFileBlock.BlockWritable</code></a> instance, creates a new block of its appropriate type, |
| writes the writable into this block, and flushes the block into the output stream.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>(package private) void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#writeHeaderAndData(org.apache.hadoop.fs.FSDataOutputStream)" class="member-name-link">writeHeaderAndData</a><wbr>(org.apache.hadoop.fs.FSDataOutputStream out)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Similar to <a href="#writeHeaderAndData(org.apache.hadoop.fs.FSDataOutputStream)"><code>writeHeaderAndData(FSDataOutputStream)</code></a>, but records the offset of this |
| block so that it can be referenced in the next block of the same type.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="maxSizeUnCompressed"> |
| <h3>maxSizeUnCompressed</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-752">maxSizeUnCompressed</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="compressedSizePredicator"> |
| <h3>compressedSizePredicator</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="BlockCompressedSizePredicator.html" title="interface in org.apache.hadoop.hbase.io.hfile">BlockCompressedSizePredicator</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-754">compressedSizePredicator</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="state"> |
| <h3>state</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="HFileBlock.Writer.State.html" title="enum class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer.State</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-757">state</a></span></div> |
| <div class="block">Writer state. Used to ensure the correct usage protocol.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="dataBlockEncoder"> |
| <h3>dataBlockEncoder</h3> |
| <div class="member-signature"><span class="modifiers">private final</span> <span class="return-type"><a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-760">dataBlockEncoder</a></span></div> |
| <div class="block">Data block encoder used for data blocks</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="dataBlockEncodingCtx"> |
| <h3>dataBlockEncodingCtx</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="../encoding/HFileBlockEncodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockEncodingContext</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-762">dataBlockEncodingCtx</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="defaultBlockEncodingCtx"> |
| <h3>defaultBlockEncodingCtx</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="../encoding/HFileBlockDefaultEncodingContext.html" title="class in org.apache.hadoop.hbase.io.encoding">HFileBlockDefaultEncodingContext</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-765">defaultBlockEncodingCtx</a></span></div> |
| <div class="block">block encoding context for non-data blocks</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="baosInMemory"> |
| <h3>baosInMemory</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-772">baosInMemory</a></span></div> |
| <div class="block">The stream we use to accumulate data into a block in an uncompressed format. We reset this |
| stream at the end of each block and reuse it. The header is written as the first |
| <a href="../../HConstants.html#HFILEBLOCK_HEADER_SIZE"><code>HConstants.HFILEBLOCK_HEADER_SIZE</code></a> bytes into this stream.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="blockType"> |
| <h3>blockType</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-778">blockType</a></span></div> |
| <div class="block">Current block type. Set in <a href="#startWriting(org.apache.hadoop.hbase.io.hfile.BlockType)"><code>startWriting(BlockType)</code></a>. Could be changed in |
| <a href="#finishBlock()"><code>finishBlock()</code></a> from <a href="BlockType.html#DATA"><code>BlockType.DATA</code></a> to <a href="BlockType.html#ENCODED_DATA"><code>BlockType.ENCODED_DATA</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="userDataStream"> |
| <h3>userDataStream</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-784">userDataStream</a></span></div> |
| <div class="block">A stream that we write uncompressed bytes to, which compresses them and writes them to |
| <a href="#baosInMemory"><code>baosInMemory</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="onDiskBlockBytesWithHeader"> |
| <h3>onDiskBlockBytesWithHeader</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-791">onDiskBlockBytesWithHeader</a></span></div> |
| <div class="block">Bytes to be written to the file system, including the header. Compressed if compression is |
| turned on. It also includes the checksum data that immediately follows the block data. |
| (header + data + checksums)</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="onDiskChecksum"> |
| <h3>onDiskChecksum</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">byte[]</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-798">onDiskChecksum</a></span></div> |
| <div class="block">The size of the checksum data on disk. It is used only if data is not compressed. If data is |
| compressed, then the checksums are already part of onDiskBytesWithHeader. If data is |
| uncompressed, then this variable stores the checksum data for this block.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="startOffset"> |
| <h3>startOffset</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">long</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-804">startOffset</a></span></div> |
| <div class="block">Current block's start offset in the <a href="HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a>. Set in |
| <a href="#writeHeaderAndData(org.apache.hadoop.fs.FSDataOutputStream)"><code>writeHeaderAndData(FSDataOutputStream)</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="prevOffsetByType"> |
| <h3>prevOffsetByType</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">long[]</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-809">prevOffsetByType</a></span></div> |
| <div class="block">Offset of previous block by block type. Updated when the next block is started.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="prevOffset"> |
| <h3>prevOffset</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">long</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-812">prevOffset</a></span></div> |
| <div class="block">The offset of the previous block of the same type</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="fileContext"> |
| <h3>fileContext</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-814">fileContext</a></span></div> |
| <div class="block">Meta data that holds information about the hfileblock</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="allocator"> |
| <h3>allocator</h3> |
| <div class="member-signature"><span class="modifiers">private final</span> <span class="return-type"><a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-816">allocator</a></span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor-detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>(org.apache.hadoop.conf.Configuration,org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder,org.apache.hadoop.hbase.io.hfile.HFileContext)"> |
| <h3>Writer</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-832">Writer</a></span><wbr><span class="parameters">(org.apache.hadoop.conf.Configuration conf, |
| <a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> dataBlockEncoder, |
| <a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext)</span></div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>dataBlockEncoder</code> - data block encoding algorithm to use</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="<init>(org.apache.hadoop.conf.Configuration,org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder,org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.ByteBuffAllocator,int)"> |
| <h3>Writer</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-837">Writer</a></span><wbr><span class="parameters">(org.apache.hadoop.conf.Configuration conf, |
| <a href="HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> dataBlockEncoder, |
| <a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext, |
| <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a> allocator, |
| int maxSizeUnCompressed)</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="beforeShipped()"> |
| <h3>beforeShipped</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-818">beforeShipped</a></span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../../regionserver/ShipperListener.html#beforeShipped()">ShipperListener</a></code></span></div> |
| <div class="block">The action that needs to be performed before <a href="../../regionserver/Shipper.html#shipped()"><code>Shipper.shipped()</code></a> is performed</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../../regionserver/ShipperListener.html#beforeShipped()">beforeShipped</a></code> in interface <code><a href="../../regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getEncodingState()"> |
| <h3>getEncodingState</h3> |
| <div class="member-signature"><span class="return-type"><a href="../encoding/EncodingState.html" title="class in org.apache.hadoop.hbase.io.encoding">EncodingState</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-825">getEncodingState</a></span>()</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="startWriting(org.apache.hadoop.hbase.io.hfile.BlockType)"> |
| <h3>startWriting</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-871">startWriting</a></span><wbr><span class="parameters">(<a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a> newBlockType)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Starts writing into the block. The previous block's data is discarded.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the stream the user can write their data into</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="write(org.apache.hadoop.hbase.ExtendedCell)"> |
| <h3>write</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-897">write</a></span><wbr><span class="parameters">(<a href="../../ExtendedCell.html" title="interface in org.apache.hadoop.hbase">ExtendedCell</a> cell)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Writes the Cell to this block</div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ensureBlockReady()"> |
| <h3>ensureBlockReady</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-906">ensureBlockReady</a></span>() |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Transitions the block writer from the "writing" state to the "block ready" state. Does |
| nothing if a block is already finished.</div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="checkBoundariesWithPredicate()"> |
| <h3>checkBoundariesWithPredicate</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-917">checkBoundariesWithPredicate</a></span>()</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="finishBlock()"> |
| <h3>finishBlock</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-931">finishBlock</a></span>() |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Finish up writing of the block. Flushes the compressing stream (if using compression), fills |
| out the header, does any compression/encryption of bytes to flush out to disk, and manages |
| the cache on write content, if applicable. Sets block write state to "block ready".</div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="putHeader(byte[],int,int,int,int)"> |
| <h3>putHeader</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-993">putHeader</a></span><wbr><span class="parameters">(byte[] dest, |
| int offset, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</span></div> |
| <div class="block">Put the header into the given byte array at the given offset.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>onDiskSize</code> - size of the block on disk header + data + checksum</dd> |
| <dd><code>uncompressedSize</code> - size of the block after decompression (but before optional data block |
| decoding) including header</dd> |
| <dd><code>onDiskDataSize</code> - size of the block on disk with header and data but not including the |
| checksums</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="putHeader(org.apache.hadoop.hbase.nio.ByteBuff,int,int,int)"> |
| <h3>putHeader</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1004">putHeader</a></span><wbr><span class="parameters">(<a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> buff, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="putHeader(org.apache.hadoop.hbase.io.ByteArrayOutputStream,int,int,int)"> |
| <h3>putHeader</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1016">putHeader</a></span><wbr><span class="parameters">(<a href="../ByteArrayOutputStream.html" title="class in org.apache.hadoop.hbase.io">ByteArrayOutputStream</a> dest, |
| int onDiskSize, |
| int uncompressedSize, |
| int onDiskDataSize)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="writeHeaderAndData(org.apache.hadoop.fs.FSDataOutputStream)"> |
| <h3>writeHeaderAndData</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1025">writeHeaderAndData</a></span><wbr><span class="parameters">(org.apache.hadoop.fs.FSDataOutputStream out)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Similar to <a href="#writeHeaderAndData(org.apache.hadoop.fs.FSDataOutputStream)"><code>writeHeaderAndData(FSDataOutputStream)</code></a>, but records the offset of this |
| block so that it can be referenced in the next block of the same type.</div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="finishBlockAndWriteHeaderAndData(java.io.DataOutputStream)"> |
| <h3>finishBlockAndWriteHeaderAndData</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1042">finishBlockAndWriteHeaderAndData</a></span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/DataOutputStream.html" title="class or interface in java.io" class="external-link">DataOutputStream</a> out)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Writes the header and the compressed data of this block (or uncompressed data when not using |
| compression) into the given stream. Can be called in the "writing" state or in the "block |
| ready" state. If called in the "writing" state, transitions the writer to the "block ready" |
| state.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>out</code> - the output stream to write the</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getHeaderAndDataForTest()"> |
| <h3>getHeaderAndDataForTest</h3> |
| <div class="member-signature"><span class="return-type">byte[]</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1057">getHeaderAndDataForTest</a></span>() |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Returns the header or the compressed data (or uncompressed data when not using compression) |
| as a byte array. Can be called in the "writing" state or in the "block ready" state. If |
| called in the "writing" state, transitions the writer to the "block ready" state. This |
| returns the header + data + checksums stored on disk.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>header and data as they would be stored on disk in a byte array</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="release()"> |
| <h3>release</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1072">release</a></span>()</div> |
| <div class="block">Releases resources used by this writer.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getOnDiskSizeWithoutHeader()"> |
| <h3>getOnDiskSizeWithoutHeader</h3> |
| <div class="member-signature"><span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1089">getOnDiskSizeWithoutHeader</a></span>()</div> |
| <div class="block">Returns the on-disk size of the data portion of the block. This is the compressed size if |
| compression is enabled. Can only be called in the "block ready" state. Header is not |
| compressed, and its size is not included in the return value.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the on-disk size of the block, not including the header.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getOnDiskSizeWithHeader()"> |
| <h3>getOnDiskSizeWithHeader</h3> |
| <div class="member-signature"><span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1100">getOnDiskSizeWithHeader</a></span>()</div> |
| <div class="block">Returns the on-disk size of the block. Can only be called in the "block ready" state.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the on-disk size of the block ready to be written, including the header size, the |
| data and the checksum data.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getUncompressedSizeWithoutHeader()"> |
| <h3>getUncompressedSizeWithoutHeader</h3> |
| <div class="member-signature"><span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1108">getUncompressedSizeWithoutHeader</a></span>()</div> |
| <div class="block">The uncompressed size of the block data. Does not include header size.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getUncompressedSizeWithHeader()"> |
| <h3>getUncompressedSizeWithHeader</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1116">getUncompressedSizeWithHeader</a></span>()</div> |
| <div class="block">The uncompressed size of the block data, including header size.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isWriting()"> |
| <h3>isWriting</h3> |
| <div class="member-signature"><span class="return-type">boolean</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1122">isWriting</a></span>()</div> |
| <div class="block">Returns true if a block is being written</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="encodedBlockSizeWritten()"> |
| <h3>encodedBlockSizeWritten</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1131">encodedBlockSizeWritten</a></span>()</div> |
| <div class="block">Returns the number of bytes written into the current block so far, or zero if not writing the |
| block at the moment. Note that this will return zero in the "block ready" state as well.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the number of bytes written</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="blockSizeWritten()"> |
| <h3>blockSizeWritten</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1140">blockSizeWritten</a></span>()</div> |
| <div class="block">Returns the number of bytes written into the current block so far, or zero if not writing the |
| block at the moment. Note that this will return zero in the "block ready" state as well.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the number of bytes written</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="cloneUncompressedBufferWithHeader()"> |
| <h3>cloneUncompressedBufferWithHeader</h3> |
| <div class="member-signature"><span class="return-type"><a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1151">cloneUncompressedBufferWithHeader</a></span>()</div> |
| <div class="block">Clones the header followed by the uncompressed data, even if using compression. This is |
| needed for storing uncompressed blocks in the block cache. Can be called in the "writing" |
| state or the "block ready" state. Returns only the header and data, does not include checksum |
| data.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Returns an uncompressed block ByteBuff for caching on write</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="cloneOnDiskBufferWithHeader()"> |
| <h3>cloneOnDiskBufferWithHeader</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1169">cloneOnDiskBufferWithHeader</a></span>()</div> |
| <div class="block">Clones the header followed by the on-disk (compressed/encoded/encrypted) data. This is needed |
| for storing packed blocks in the block cache. Returns only the header and data, Does not |
| include checksum data.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Returns a copy of block bytes for caching on write</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="expectState(org.apache.hadoop.hbase.io.hfile.HFileBlock.Writer.State)"> |
| <h3>expectState</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1177">expectState</a></span><wbr><span class="parameters">(<a href="HFileBlock.Writer.State.html" title="enum class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer.State</a> expectedState)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="writeBlock(org.apache.hadoop.hbase.io.hfile.HFileBlock.BlockWritable,org.apache.hadoop.fs.FSDataOutputStream)"> |
| <h3>writeBlock</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1191">writeBlock</a></span><wbr><span class="parameters">(<a href="HFileBlock.BlockWritable.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockWritable</a> bw, |
| org.apache.hadoop.fs.FSDataOutputStream out)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <div class="block">Takes the given <a href="HFileBlock.BlockWritable.html" title="interface in org.apache.hadoop.hbase.io.hfile"><code>HFileBlock.BlockWritable</code></a> instance, creates a new block of its appropriate type, |
| writes the writable into this block, and flushes the block into the output stream. The writer |
| is instructed not to buffer uncompressed bytes for cache-on-write.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>bw</code> - the block-writable object to write as a block</dd> |
| <dd><code>out</code> - the file system output stream</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getBlockForCaching(org.apache.hadoop.hbase.io.hfile.CacheConfig)"> |
| <h3>getBlockForCaching</h3> |
| <div class="member-signature"><span class="return-type"><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.Writer.html#line-1207">getBlockForCaching</a></span><wbr><span class="parameters">(<a href="CacheConfig.html" title="class in org.apache.hadoop.hbase.io.hfile">CacheConfig</a> cacheConf)</span></div> |
| <div class="block">Creates a new HFileBlock. Checksums have already been validated, so the byte buffer passed |
| into the constructor of this newly created block does not have checksum data even though the |
| header minor version is MINOR_VERSION_WITH_CHECKSUM. This is indicated by setting a 0 value |
| in bytesPerChecksum. This method copies the on-disk or uncompressed data to build the |
| HFileBlock which is used only while writing blocks and caching. |
| <p> |
| TODO: Should there be an option where a cache can ask that hbase preserve block checksums for |
| checking after a block comes out of the cache? Otehrwise, cache is responsible for blocks |
| being wholesome (ECC memory or if file-backed, it does checksumming).</div> |
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