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| <div class="subTitle">org.apache.hadoop.io.file.tfile</div> |
| <h2 title="Class TFile.Reader.Scanner.Entry" class="title">Class TFile.Reader.Scanner.Entry</h2> |
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| <li>org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.Entry</li> |
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| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.html" title="class in org.apache.hadoop.io.file.tfile">TFile.Reader.Scanner</a></dd> |
| </dl> |
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| <br> |
| <pre>public class <span class="typeNameLabel">TFile.Reader.Scanner.Entry</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</a>></pre> |
| <div class="block">Entry to a <Key, Value> pair.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#Entry--">Entry</a></span>()</code> </td> |
| </tr> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo-byte:A-">compareTo</a></span>(byte[] buf)</code> |
| <div class="block">Compare the entry key to another key.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo-byte:A-int-int-">compareTo</a></span>(byte[] buf, |
| int offset, |
| int length)</code> |
| <div class="block">Compare the entry key to another key.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo-org.apache.hadoop.io.file.tfile.RawComparable-">compareTo</a></span>(<a href="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</a> key)</code> |
| <div class="block">Compare an entry with a RawComparable object.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#equals-java.lang.Object-">equals</a></span>(<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> other)</code> |
| <div class="block">Compare whether this and other points to the same key value.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#get-org.apache.hadoop.io.BytesWritable-org.apache.hadoop.io.BytesWritable-">get</a></span>(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> key, |
| <a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> value)</code> |
| <div class="block">Copy the key and value in one shot into BytesWritables.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey-byte:A-">getKey</a></span>(byte[] buf)</code> |
| <div class="block">Copy the key into user supplied buffer.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey-byte:A-int-">getKey</a></span>(byte[] buf, |
| int offset)</code> |
| <div class="block">Copy the key into user supplied buffer.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey-org.apache.hadoop.io.BytesWritable-">getKey</a></span>(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> key)</code> |
| <div class="block">Copy the key into BytesWritable.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKeyLength--">getKeyLength</a></span>()</code> |
| <div class="block">Get the length of the key.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKeyStream--">getKeyStream</a></span>()</code> |
| <div class="block">Streaming access to the key.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-">getValue</a></span>(byte[] buf)</code> |
| <div class="block">Copy value into user-supplied buffer.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-int-">getValue</a></span>(byte[] buf, |
| int offset)</code> |
| <div class="block">Copy value into user-supplied buffer.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-org.apache.hadoop.io.BytesWritable-">getValue</a></span>(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> value)</code> |
| <div class="block">Copy the value into BytesWritable.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueLength--">getValueLength</a></span>()</code> |
| <div class="block">Get the length of the value.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream--">getValueStream</a></span>()</code> |
| <div class="block">Stream access to value.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#hashCode--">hashCode</a></span>()</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#isValueLengthKnown--">isValueLengthKnown</a></span>()</code> |
| <div class="block">Check whether it is safe to call getValueLength().</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#writeKey-java.io.OutputStream-">writeKey</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> out)</code> |
| <div class="block">Writing the key to the output stream.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#writeValue-java.io.OutputStream-">writeValue</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> out)</code> |
| <div class="block">Writing the value to the output stream.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<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></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="Entry--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>Entry</h4> |
| <pre>public Entry()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="getKeyLength--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getKeyLength</h4> |
| <pre>public int getKeyLength()</pre> |
| <div class="block">Get the length of the key.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the key.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="get-org.apache.hadoop.io.BytesWritable-org.apache.hadoop.io.BytesWritable-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>get</h4> |
| <pre>public void get(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> key, |
| <a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> value) |
| 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">Copy the key and value in one shot into BytesWritables. This is |
| equivalent to getKey(key); getValue(value);</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - BytesWritable to hold key.</dd> |
| <dd><code>value</code> - BytesWritable to hold value</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getKey-org.apache.hadoop.io.BytesWritable-"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>getKey</h4> |
| <pre>public int getKey(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> key) |
| 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">Copy the key into BytesWritable. The input BytesWritable will be |
| automatically resized to the actual key size.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - BytesWritable to hold the key.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getValue-org.apache.hadoop.io.BytesWritable-"> |
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| <li class="blockList"> |
| <h4>getValue</h4> |
| <pre>public long getValue(<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a> value) |
| 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">Copy the value into BytesWritable. The input BytesWritable will be |
| automatically resized to the actual value size. The implementation |
| directly uses the buffer inside BytesWritable for storing the value. |
| The call does not require the value length to be known.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - </dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>writeKey</h4> |
| <pre>public int writeKey(<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> out) |
| 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">Writing the key to the output stream. This method avoids copying key |
| buffer from Scanner into user buffer, then writing to the output |
| stream.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - The output stream</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the key.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>writeValue</h4> |
| <pre>public long writeValue(<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> out) |
| 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">Writing the value to the output stream. This method avoids copying |
| value data from Scanner into user buffer, then writing to the output |
| stream. It does not require the value length to be known.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - The output stream</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the value</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>getKey</h4> |
| <pre>public int getKey(byte[] buf) |
| 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">Copy the key into user supplied buffer.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>buf</code> - The buffer supplied by user. The length of the buffer must |
| not be shorter than the key length.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The length of the key.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>getKey</h4> |
| <pre>public int getKey(byte[] buf, |
| int offset) |
| 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">Copy the key into user supplied buffer.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>buf</code> - The buffer supplied by user.</dd> |
| <dd><code>offset</code> - The starting offset of the user buffer where we should copy |
| the key into. Requiring the key-length + offset no greater |
| than the buffer length.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The length of the key.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getKeyStream</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</a> getKeyStream()</pre> |
| <div class="block">Streaming access to the key. Useful for desrializing the key into |
| user objects.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The input stream.</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <li class="blockList"> |
| <h4>getValueLength</h4> |
| <pre>public int getValueLength()</pre> |
| <div class="block">Get the length of the value. isValueLengthKnown() must be tested |
| true.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the value.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getValue-byte:A-"> |
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| </a> |
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| <h4>getValue</h4> |
| <pre>public int getValue(byte[] buf) |
| 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">Copy value into user-supplied buffer. User supplied buffer must be |
| large enough to hold the whole value. The value part of the key-value |
| pair pointed by the current cursor is not cached and can only be |
| examined once. Calling any of the following functions more than once |
| without moving the cursor will result in exception: |
| <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-"><code>getValue(byte[])</code></a>, <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-int-"><code>getValue(byte[], int)</code></a>, |
| <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream--"><code>getValueStream()</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the value. Does not require |
| isValueLengthKnown() to be true.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>public int getValue(byte[] buf, |
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| 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">Copy value into user-supplied buffer. User supplied buffer must be |
| large enough to hold the whole value (starting from the offset). The |
| value part of the key-value pair pointed by the current cursor is not |
| cached and can only be examined once. Calling any of the following |
| functions more than once without moving the cursor will result in |
| exception: <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-"><code>getValue(byte[])</code></a>, <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-int-"><code>getValue(byte[], int)</code></a>, |
| <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream--"><code>getValueStream()</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length of the value. Does not require |
| isValueLengthKnown() to be true.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>getValueStream</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</a> getValueStream() |
| 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">Stream access to value. The value part of the key-value pair pointed |
| by the current cursor is not cached and can only be examined once. |
| Calling any of the following functions more than once without moving |
| the cursor will result in exception: <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-"><code>getValue(byte[])</code></a>, |
| <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue-byte:A-int-"><code>getValue(byte[], int)</code></a>, <a href="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream--"><code>getValueStream()</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The input stream for reading the value.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <h4>isValueLengthKnown</h4> |
| <pre>public boolean isValueLengthKnown()</pre> |
| <div class="block">Check whether it is safe to call getValueLength().</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if value length is known before hand. Values less than |
| the chunk size will always have their lengths known before |
| hand. Values that are written out as a whole (with advertised |
| length up-front) will always have their lengths known in |
| read.</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <h4>compareTo</h4> |
| <pre>public int compareTo(byte[] buf)</pre> |
| <div class="block">Compare the entry key to another key. Synonymous to compareTo(key, 0, |
| key.length).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>buf</code> - The key buffer.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>comparison result between the entry key with the input key.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>compareTo</h4> |
| <pre>public int compareTo(byte[] buf, |
| int offset, |
| int length)</pre> |
| <div class="block">Compare the entry key to another key. Synonymous to compareTo(new |
| ByteArray(buf, offset, length)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>buf</code> - The key buffer</dd> |
| <dd><code>offset</code> - offset into the key buffer.</dd> |
| <dd><code>length</code> - the length of the key.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>comparison result between the entry key with the input key.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>compareTo</h4> |
| <pre>public int compareTo(<a href="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</a> key)</pre> |
| <div class="block">Compare an entry with a RawComparable object. This is useful when |
| Entries are stored in a collection, and we want to compare a user |
| supplied key.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true#compareTo-T-" title="class or interface in java.lang">compareTo</a></code> in interface <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</a>></code></dd> |
| </dl> |
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| </a> |
| <ul class="blockList"> |
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| <h4>equals</h4> |
| <pre>public boolean equals(<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> other)</pre> |
| <div class="block">Compare whether this and other points to the same key value.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a></code> in class <code><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></code></dd> |
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| </a> |
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| <li class="blockList"> |
| <h4>hashCode</h4> |
| <pre>public int hashCode()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a></code> in class <code><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></code></dd> |
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| </li> |
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| </li> |
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