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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>DMTL: db_reader< PATTERN, TOKENIZER, ALLOC > Class Template Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li id="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>db_reader< PATTERN, TOKENIZER, ALLOC > Class Template Reference</h1><!-- doxytag: class="db_reader" -->Database Reader class, to read the input file. <a href="#_details">More...</a><p><code>#include <<a class="el" href="db__reader_8h-source.html">db_reader.h</a>></code><p><a href="classdb__reader-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Types</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="960e8f68fd71048803d991f20c7c9d90"></a><!-- doxytag: member="db_reader::VAT" ref="960e8f68fd71048803d991f20c7c9d90" args="" -->typedef <a class="el" href="classvat.html">vat</a>< typename PATTERN::PAT_PROPS,<br> typename PATTERN::MINE_PROPS,<br> ALLOC, std::vector > </td><td class="memItemRight" valign="bottom"><b>VAT</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="393fc1277eddb4f5eed3e6def882bba1"></a><!-- doxytag: member="db_reader::TKNZ" ref="393fc1277eddb4f5eed3e6def882bba1" args="" -->typedef <a class="el" href="classtokenizer.html">tokenizer</a>< PATTERN,<br> TOKENIZER, ALLOC > </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#393fc1277eddb4f5eed3e6def882bba1">TKNZ</a></td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">vat typedef <br></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#c5876ce13b101064cf6490330d14b680">db_reader</a> (const char *infile_name)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">tokenizer class for this pattern-type, its method parse_next_line() is invoked by <a class="el" href="classdb__reader.html">db_reader</a> Constructor <a href="#c5876ce13b101064cf6490330d14b680"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#c427ac90e7291c45c9062c1342b489b7">db_reader</a> (const char *infile_name, int mem_size)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor_for_gigabase. <a href="#c427ac90e7291c45c9062c1342b489b7"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="201907ca71dcdfee1afcb5a0f4276459"></a><!-- doxytag: member="db_reader::~db_reader" ref="201907ca71dcdfee1afcb5a0f4276459" args="()" --> </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#201907ca71dcdfee1afcb5a0f4276459">~db_reader</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">destructor <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#5a1817812743ce54e2bd1d3792205be2">open</a> (const char *infile_name)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Opens the specified input file. This is an alternative to the parameterized constructor. <a href="#5a1817812743ce54e2bd1d3792205be2"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#fbd8800d3623a8f60e1840e5ea7c4437">close</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Closes the file associated with this class. <a href="#fbd8800d3623a8f60e1840e5ea7c4437"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classdb__reader.html#f90258967407ef7cfb7b049f73492bf1">is_open</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether file associated with this object is open <a href="#f90258967407ef7cfb7b049f73492bf1"></a><br></td></tr><tr><td class="memTemplParams" nowrap colspan="2">template<class SM_T> </td></tr><tr><td class="memTemplItemLeft" nowrap align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classdb__reader.html#dd4e70279ee1916eddf117fbcfb97c24">get_length_one</a> (<a class="el" href="classpat__fam.html">pat_fam</a>< PATTERN > &freq_pats, <a class="el" href="classstorage__manager.html">storage_manager</a>< PATTERN, <a class="el" href="classvat.html">VAT</a>, ALLOC, SM_T > &vat_hmap, const int &minsup)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">obtain length one frequent patterns in sorted order, and populate vat_db with their vats <a href="#dd4e70279ee1916eddf117fbcfb97c24"></a><br></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2><h3>template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC><br> class db_reader< PATTERN, TOKENIZER, ALLOC ></h3>Database Reader class, to read the input file. <p>This class reads the database, using the tokenizer class and populate the level-1 VAT. <p><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="c5876ce13b101064cf6490330d14b680"></a><!-- doxytag: member="db_reader::db_reader" ref="c5876ce13b101064cf6490330d14b680" args="(const char *infile_name)" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div> <table class="memname"> <tr> <td class="memname"><a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::<a class="el" href="classdb__reader.html">db_reader</a> </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"> <em>infile_name</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>tokenizer class for this pattern-type, its method parse_next_line() is invoked by <a class="el" href="classdb__reader.html">db_reader</a> Constructor <p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>infile_name</em> </td><td>Name of the input database (flat) file </td></tr> </table></dl></div></div><p><a class="anchor" name="c427ac90e7291c45c9062c1342b489b7"></a><!-- doxytag: member="db_reader::db_reader" ref="c427ac90e7291c45c9062c1342b489b7" args="(const char *infile_name, int mem_size)" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div> <table class="memname"> <tr> <td class="memname"><a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::<a class="el" href="classdb__reader.html">db_reader</a> </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"> <em>infile_name</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"> <em>mem_size</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>Constructor_for_gigabase. <p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>infile_name</em> </td><td>Name of the input database (flat) file. </td></tr> <tr><td valign="top"></td><td valign="top"><em>mem_size</em> </td><td>Maximum size of memory vat for gigabase backend. </td></tr> </table></dl></div></div><p><hr><h2>Member Function Documentation</h2><a class="anchor" name="fbd8800d3623a8f60e1840e5ea7c4437"></a><!-- doxytag: member="db_reader::close" ref="fbd8800d3623a8f60e1840e5ea7c4437" args="()" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div> <table class="memname"> <tr> <td class="memname">void <a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::close </td> <td>(</td> <td class="paramname"> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>Closes the file associated with this class. <p>void <a class="el" href="classdb__reader.html#fbd8800d3623a8f60e1840e5ea7c4437">close()</a> </div></div><p><a class="anchor" name="dd4e70279ee1916eddf117fbcfb97c24"></a><!-- doxytag: member="db_reader::get_length_one" ref="dd4e70279ee1916eddf117fbcfb97c24" args="(pat_fam< PATTERN > &freq_pats, storage_manager< PATTERN, VAT, ALLOC, SM_T > &vat_hmap, const int &minsup)" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div><div class="memtemplate">template<class SM_T> </div> <table class="memname"> <tr> <td class="memname">void <a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::get_length_one </td> <td>(</td> <td class="paramtype"><a class="el" href="classpat__fam.html">pat_fam</a>< PATTERN > & </td> <td class="paramname"> <em>freq_pats</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="classstorage__manager.html">storage_manager</a>< PATTERN, <a class="el" href="classvat.html">VAT</a>, ALLOC, SM_T > & </td> <td class="paramname"> <em>vat_hmap</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const int & </td> <td class="paramname"> <em>minsup</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>obtain length one frequent patterns in sorted order, and populate vat_db with their vats <p>void get_length_one(pat_fam<PATTERN>& freq_pats, vat_db<PATTERN, VAT,0>& vat_hmap, int minsup) <dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>freq_pats</em> </td><td>Pattern Family which is populated with the frequent patterns </td></tr> <tr><td valign="top"></td><td valign="top"><em>vat_hmap</em> </td><td>The hashmap used to store pattern-to-VAT mappings </td></tr> <tr><td valign="top"></td><td valign="top"><em>minsup</em> </td><td>Minimum support threshold </td></tr> </table></dl></div></div><p><a class="anchor" name="f90258967407ef7cfb7b049f73492bf1"></a><!-- doxytag: member="db_reader::is_open" ref="f90258967407ef7cfb7b049f73492bf1" args="()" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div> <table class="memname"> <tr> <td class="memname">bool <a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::is_open </td> <td>(</td> <td class="paramname"> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>returns whether file associated with this object is open <p>bool is_open </div></div><p><a class="anchor" name="5a1817812743ce54e2bd1d3792205be2"></a><!-- doxytag: member="db_reader::open" ref="5a1817812743ce54e2bd1d3792205be2" args="(const char *infile_name)" --><div class="memitem"><div class="memproto"><div class="memtemplate">template<typename PATTERN, typename TOKENIZER, template< typename > class ALLOC> </div> <table class="memname"> <tr> <td class="memname">void <a class="el" href="classdb__reader.html">db_reader</a>< PATTERN, TOKENIZER, ALLOC >::open </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"> <em>infile_name</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>Opens the specified input file. This is an alternative to the parameterized constructor. <p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>infile_name</em> </td><td>Name of the input file </td></tr> </table></dl></div></div><p><hr>The documentation for this class was generated from the following file:<ul><li><a class="el" href="db__reader_8h-source.html">db_reader.h</a></ul><hr size="1"><address style="align: right;"><small>Generated on Wed Jul 26 14:01:09 2006 for DMTL by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address></body></html>⌨️ 快捷键说明
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