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| <h2 title="Class PassthroughCodec.StubDecompressor" class="title">Class PassthroughCodec.StubDecompressor</h2> |
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| <li>org.apache.hadoop.io.compress.PassthroughCodec.StubDecompressor</li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.html" title="class in org.apache.hadoop.io.compress">PassthroughCodec</a></dd> |
| </dl> |
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| <br> |
| <pre>protected static final class <span class="typeNameLabel">PassthroughCodec.StubDecompressor</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="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></pre> |
| <div class="block">The decompressor is a no-op. It is not needed other than |
| to complete the methods offered by the interface.</div> |
| </li> |
| </ul> |
| </div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#StubDecompressor--">StubDecompressor</a></span>()</code> </td> |
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| <th class="colLast" scope="col">Method and Description</th> |
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| <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/compress/PassthroughCodec.StubDecompressor.html#decompress-byte:A-int-int-">decompress</a></span>(byte[] b, |
| int off, |
| int len)</code> |
| <div class="block">Fills specified buffer with uncompressed data.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#end--">end</a></span>()</code> |
| <div class="block">Closes the decompressor and discards any unprocessed input.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#finished--">finished</a></span>()</code> |
| <div class="block">Returns <code>true</code> if the end of the decompressed |
| data output stream has been reached.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#getRemaining--">getRemaining</a></span>()</code> |
| <div class="block">Returns the number of bytes remaining in the compressed data buffer.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#needsDictionary--">needsDictionary</a></span>()</code> |
| <div class="block">Returns <code>true</code> if a preset dictionary is needed for decompression.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#needsInput--">needsInput</a></span>()</code> |
| <div class="block">Returns <code>true</code> if the input data buffer is empty and |
| <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setInput-byte:A-int-int-"><code>Decompressor.setInput(byte[], int, int)</code></a> should be called to |
| provide more input.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#reset--">reset</a></span>()</code> |
| <div class="block">Resets decompressor and input and output buffers so that a new set of |
| input data can be processed.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#setDictionary-byte:A-int-int-">setDictionary</a></span>(byte[] b, |
| int off, |
| int len)</code> |
| <div class="block">Sets preset dictionary for compression.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/io/compress/PassthroughCodec.StubDecompressor.html#setInput-byte:A-int-int-">setInput</a></span>(byte[] b, |
| int off, |
| int len)</code> |
| <div class="block">Sets input data for decompression.</div> |
| </td> |
| </tr> |
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| <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#equals-java.lang.Object-" title="class or interface in java.lang">equals</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#hashCode--" title="class or interface in java.lang">hashCode</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"> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| </a> |
| <h3>Constructor Detail</h3> |
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| </a> |
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| <h4>StubDecompressor</h4> |
| <pre>protected StubDecompressor()</pre> |
| </li> |
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| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <h4>setInput</h4> |
| <pre>public void setInput(byte[] b, |
| int off, |
| int len)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setInput-byte:A-int-int-">Decompressor</a></code></span></div> |
| <div class="block">Sets input data for decompression. |
| This should be called if and only if <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsInput--"><code>Decompressor.needsInput()</code></a> returns |
| <code>true</code> indicating that more input data is required. |
| (Both native and non-native versions of various Decompressors require |
| that the data passed in via <code>b[]</code> remain unmodified until |
| the caller is explicitly notified--via <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsInput--"><code>Decompressor.needsInput()</code></a>--that the |
| buffer may be safely modified. With this requirement, an extra |
| buffer-copy can be avoided.)</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setInput-byte:A-int-int-">setInput</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>b</code> - Input data</dd> |
| <dd><code>off</code> - Start offset</dd> |
| <dd><code>len</code> - Length</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <h4>needsInput</h4> |
| <pre>public boolean needsInput()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsInput--">Decompressor</a></code></span></div> |
| <div class="block">Returns <code>true</code> if the input data buffer is empty and |
| <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setInput-byte:A-int-int-"><code>Decompressor.setInput(byte[], int, int)</code></a> should be called to |
| provide more input.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsInput--">needsInput</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the input data buffer is empty and |
| <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setInput-byte:A-int-int-"><code>Decompressor.setInput(byte[], int, int)</code></a> should be called in |
| order to provide more input.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setDictionary-byte:A-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setDictionary</h4> |
| <pre>public void setDictionary(byte[] b, |
| int off, |
| int len)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setDictionary-byte:A-int-int-">Decompressor</a></code></span></div> |
| <div class="block">Sets preset dictionary for compression. A preset dictionary |
| is used when the history buffer can be predetermined.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#setDictionary-byte:A-int-int-">setDictionary</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>b</code> - Dictionary data bytes</dd> |
| <dd><code>off</code> - Start offset</dd> |
| <dd><code>len</code> - Length</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="needsDictionary--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>needsDictionary</h4> |
| <pre>public boolean needsDictionary()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsDictionary--">Decompressor</a></code></span></div> |
| <div class="block">Returns <code>true</code> if a preset dictionary is needed for decompression.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsDictionary--">needsDictionary</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if a preset dictionary is needed for decompression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="finished--"> |
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| </a> |
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| <h4>finished</h4> |
| <pre>public boolean finished()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#finished--">Decompressor</a></code></span></div> |
| <div class="block">Returns <code>true</code> if the end of the decompressed |
| data output stream has been reached. Indicates a concatenated data stream |
| when finished() returns <code>true</code> and <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#getRemaining--"><code>Decompressor.getRemaining()</code></a> |
| returns a positive value. finished() will be reset with the |
| <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#reset--"><code>Decompressor.reset()</code></a> method.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#finished--">finished</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the end of the decompressed |
| data output stream has been reached.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="decompress-byte:A-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>decompress</h4> |
| <pre>public int decompress(byte[] b, |
| int off, |
| int len) |
| 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"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#decompress-byte:A-int-int-">Decompressor</a></code></span></div> |
| <div class="block">Fills specified buffer with uncompressed data. Returns actual number |
| of bytes of uncompressed data. A return value of 0 indicates that |
| <a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#needsInput--"><code>Decompressor.needsInput()</code></a> should be called in order to determine if more |
| input data is required.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html#decompress-byte:A-int-int-">decompress</a></code> in interface <code><a href="../../../../../org/apache/hadoop/io/compress/Decompressor.html" title="interface in org.apache.hadoop.io.compress">Decompressor</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>b</code> - Buffer for the uncompressed data</dd> |
| <dd><code>off</code> - Start offset of the data</dd> |
| <dd><code>len</code> - Size of the buffer</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The actual number of bytes of uncompressed data.</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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| <div class="block">Returns the number of bytes remaining in the compressed data buffer. |
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| <dd>The number of bytes remaining in the compressed data buffer.</dd> |
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| <div class="block">Resets decompressor and input and output buffers so that a new set of |
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| <div class="block">Closes the decompressor and discards any unprocessed input.</div> |
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