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| |
| <p><code>#include <<a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a>></code></p> |
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| Inheritance diagram for impala::DictDecoderBase:</div> |
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| <table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> |
| Public Member Functions</h2></td></tr> |
| <tr class="memitem:a01cc0f5edeb291836134ad8d204d0b61"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1DictDecoderBase.html#a01cc0f5edeb291836134ad8d204d0b61">SetData</a> (uint8_t *buffer, int buffer_len)</td></tr> |
| <tr class="memdesc:a01cc0f5edeb291836134ad8d204d0b61"><td class="mdescLeft"> </td><td class="mdescRight">The rle encoded indices into the dictionary. <a href="#a01cc0f5edeb291836134ad8d204d0b61">More...</a><br/></td></tr> |
| <tr class="separator:a01cc0f5edeb291836134ad8d204d0b61"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a69ecec86bd151c34d00e5f6176170d21"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1DictDecoderBase.html#a69ecec86bd151c34d00e5f6176170d21">~DictDecoderBase</a> ()</td></tr> |
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| <tr class="memitem:a1584a77d0b1dc7e3d7bb38588da05942"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1DictDecoderBase.html#a1584a77d0b1dc7e3d7bb38588da05942">num_entries</a> () const =0</td></tr> |
| <tr class="separator:a1584a77d0b1dc7e3d7bb38588da05942"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a> |
| Protected Attributes</h2></td></tr> |
| <tr class="memitem:aa4c29cf0c82770e560e7554a765eebe1"><td class="memItemLeft" align="right" valign="top">boost::scoped_ptr< <a class="el" href="classimpala_1_1RleDecoder.html">RleDecoder</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1DictDecoderBase.html#aa4c29cf0c82770e560e7554a765eebe1">data_decoder_</a></td></tr> |
| <tr class="separator:aa4c29cf0c82770e560e7554a765eebe1"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>Decoder class for dictionary encoded data. This class does not allocate any buffers. The input buffers (dictionary buffer and RLE buffer) must be maintained by the caller and valid as long as this object is. </p> |
| |
| <p>Definition at line <a class="el" href="dict-encoding_8h_source.html#l00166">166</a> of file <a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a>.</p> |
| </div><h2 class="groupheader">Constructor & Destructor Documentation</h2> |
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| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">virtual impala::DictDecoderBase::~DictDecoderBase </td> |
| <td>(</td> |
| <td class="paramname"></td><td>)</td> |
| <td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="dict-encoding_8h_source.html#l00178">178</a> of file <a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a>.</p> |
| |
| </div> |
| </div> |
| <h2 class="groupheader">Member Function Documentation</h2> |
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| <td class="memname">virtual int impala::DictDecoderBase::num_entries </td> |
| <td>(</td> |
| <td class="paramname"></td><td>)</td> |
| <td> const</td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">pure virtual</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Implemented in <a class="el" href="classimpala_1_1DictDecoder.html#aef42623ba22cfd7b62aca53044b2d8ad">impala::DictDecoder< T ></a>.</p> |
| |
| <p>Referenced by <a class="el" href="hdfs-parquet-scanner_8cc_source.html#l00532">impala::HdfsParquetScanner::BaseColumnReader::ReadDataPage()</a>.</p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="a01cc0f5edeb291836134ad8d204d0b61"></a> |
| <div class="memitem"> |
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| <td class="memname">void impala::DictDecoderBase::SetData </td> |
| <td>(</td> |
| <td class="paramtype">uint8_t * </td> |
| <td class="paramname"><em>buffer</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>buffer_len</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>The rle encoded indices into the dictionary. </p> |
| |
| <p>Definition at line <a class="el" href="dict-encoding_8h_source.html#l00169">169</a> of file <a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a>.</p> |
| |
| <p>References <a class="el" href="dict-encoding_8h_source.html#l00183">data_decoder_</a>.</p> |
| |
| <p>Referenced by <a class="el" href="dict-test_8cc_source.html#l00033">impala::ValidateDict()</a>.</p> |
| |
| </div> |
| </div> |
| <h2 class="groupheader">Member Data Documentation</h2> |
| <a class="anchor" id="aa4c29cf0c82770e560e7554a765eebe1"></a> |
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| <div class="memproto"> |
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| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">boost::scoped_ptr<<a class="el" href="classimpala_1_1RleDecoder.html">RleDecoder</a>> impala::DictDecoderBase::data_decoder_</td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">protected</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="dict-encoding_8h_source.html#l00183">183</a> of file <a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a>.</p> |
| |
| <p>Referenced by <a class="el" href="dict-encoding_8h_source.html#l00169">SetData()</a>.</p> |
| |
| </div> |
| </div> |
| <hr/>The documentation for this class was generated from the following file:<ul> |
| <li>be/src/util/<a class="el" href="dict-encoding_8h_source.html">dict-encoding.h</a></li> |
| </ul> |
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