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| <div class="subTitle">org.apache.hadoop.hbase.io.hfile</div> |
| <h2 title="Class HFileBlock.PrefetchedHeader" class="title">Class HFileBlock.PrefetchedHeader</h2> |
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| <li>org.apache.hadoop.hbase.io.hfile.HFileBlock.PrefetchedHeader</li> |
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| <pre>private static class <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.html#line.1364">HFileBlock.PrefetchedHeader</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Data-structure to use caching the header of the NEXT block. Only works if next read |
| that comes in here is next in sequence in this block. |
| |
| When we read, we read current block and the next blocks' header. We do this so we have |
| the length of the next block to read if the hfile index is not available (rare, at |
| hfile open only).</div> |
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| <td class="colFirst"><code>(package private) <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#buf">buf</a></span></code> </td> |
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| <td class="colFirst"><code>(package private) byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#header">header</a></span></code> </td> |
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| <td class="colFirst"><code>private </code></td> |
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| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#toString--">toString</a></span>()</code> </td> |
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| <pre>byte[] <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line.1366">header</a></pre> |
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| <h4>buf</h4> |
| <pre>final <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line.1367">buf</a></pre> |
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| <pre>private <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line.1364">PrefetchedHeader</a>()</pre> |
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