file__storage__manager_8h-source.html

这是一个用于数据挖掘的常用算法的模板库（数据挖掘的C++模板库for UNIX)

<a name="l00095"></a>00095   
<a name="l00096"></a>00096   <span class="keywordtype">bool</span> find(PAT* <span class="keyword">const</span>&amp; p)<span class="keyword"> const</span>{   
<a name="l00097"></a>00097     <span class="keywordflow">return</span> Cache-&gt;find_vat(p-&gt;pat_id());
<a name="l00098"></a>00098   }<span class="comment">//end find()</span>
<a name="l00099"></a>00099   
<a name="l00100"></a>00100   
<a name="l00101"></a>00101   <span class="keywordtype">void</span> delete_vat(PAT* <span class="keyword">const</span>&amp; p){
<a name="l00102"></a>00102     Cache-&gt;delete_vat(p-&gt;pat_id());
<a name="l00103"></a>00103   }
<a name="l00104"></a>00104   
<a name="l00105"></a>00105   <span class="keywordtype">void</span> lock_vat(PAT* <span class="keyword">const</span>&amp; p) {
<a name="l00106"></a>00106     Cache-&gt;lock_vat(p-&gt;pat_id());
<a name="l00107"></a>00107   } <span class="comment">//lock_vat</span>
<a name="l00108"></a>00108 
<a name="l00109"></a>00109   <span class="keywordtype">void</span> unlock_vat(PAT* <span class="keyword">const</span>&amp; p) {
<a name="l00110"></a>00110     Cache-&gt;unlock_vat(p-&gt;pat_id());
<a name="l00111"></a>00111   } <span class="comment">//unlock_vat</span>
<a name="l00112"></a>00112 
<a name="l00113"></a>00113   <span class="comment">// get Vat* from the cache</span>
<a name="l00114"></a>00114   VAT* get_vat(PAT* <span class="keyword">const</span>&amp; p)<span class="keyword"> const </span>{
<a name="l00115"></a>00115     VAT *value=Cache-&gt;get_vat_point(p-&gt;pat_id());
<a name="l00116"></a>00116     <span class="keywordflow">return</span> value;
<a name="l00117"></a>00117   } <span class="comment">//get_using_pattern</span>
<a name="l00118"></a>00118 
<a name="l00119"></a>00119   <span class="comment">// get Vat* from the cache-level 1</span>
<a name="l00120"></a>00120   VAT* get_vat(<span class="keyword">const</span> key_type &amp; <span class="keywordtype">id</span>)<span class="keyword"> const</span>{
<a name="l00121"></a>00121     VAT *value=Cache-&gt;get_vat_point_levelone(<span class="keywordtype">id</span>);
<a name="l00122"></a>00122     <span class="keywordflow">return</span> value;
<a name="l00123"></a>00123   } <span class="comment">//get_using_ID</span>
<a name="l00124"></a>00124 
<a name="l00128"></a><a class="code" href="classstorage__manager_3_01PAT_00_01VAT_00_01ALLOC_00_01file__storage_01_4.html#45108861ac9da5155a57713a1a87f01f">00128</a>   VAT** intersect(PAT* <span class="keyword">const</span>&amp; p1, PAT* <span class="keyword">const</span>&amp; p2, <a class="code" href="classpattern__support.html">PAT_SUP</a> ** cand_sups,PAT ** cand_pats, <span class="keywordtype">bool</span> is_l2) {
<a name="l00129"></a>00129     <span class="comment">// Get the vats.</span>
<a name="l00130"></a>00130     VAT* v1, *v2;
<a name="l00131"></a>00131     v1 = Cache-&gt;get_vat_point(p1-&gt;pat_id());
<a name="l00132"></a>00132     <span class="keyword">static</span> <span class="keywordtype">int</span> p1old=0;
<a name="l00133"></a>00133     <span class="keywordtype">int</span> p1new= p1-&gt;pat_id();
<a name="l00134"></a>00134     <span class="keywordflow">if</span>(p1new!=p1old){
<a name="l00135"></a>00135       Cache-&gt;lock_vat(p1new);
<a name="l00136"></a>00136       Cache-&gt;unlock_vat(p1old);      
<a name="l00137"></a>00137       p1old=p1new;
<a name="l00138"></a>00138     }
<a name="l00139"></a>00139     
<a name="l00140"></a>00140     v2 = Cache-&gt;get_vat_point(p2-&gt;pat_id());
<a name="l00141"></a>00141         
<a name="l00142"></a>00142     <span class="keywordflow">if</span>(v1 == 0 || v2 == 0) {
<a name="l00143"></a>00143       cout&lt;&lt; <span class="stringliteral">"file_storage_manager: vat not found for pattern = "</span> &lt;&lt; p1-&gt;pat_id() &lt;&lt; endl;
<a name="l00144"></a>00144       <span class="keywordflow">return</span> NULL;
<a name="l00145"></a>00145     }
<a name="l00146"></a>00146     <span class="comment">// TODO: Lock v1 and v2. </span>
<a name="l00147"></a>00147     <span class="keywordflow">return</span> VAT::intersection(v1, v2, cand_sups, cand_pats,is_l2);
<a name="l00148"></a>00148   }
<a name="l00149"></a>00149   
<a name="l00150"></a>00150   <span class="comment">//adding vat to the cache--not in level 1</span>
<a name="l00151"></a>00151   <span class="keywordtype">bool</span> add_vat(<span class="keyword">const</span> PAT* <span class="keyword">const</span>&amp; p, VAT* v){
<a name="l00152"></a>00152     <span class="keywordtype">bool</span> ret;
<a name="l00153"></a>00153     ret=Cache-&gt;insert(p-&gt;pat_id(),v);
<a name="l00154"></a>00154     <span class="keywordflow">return</span> ret;
<a name="l00155"></a>00155   }<span class="comment">//end add_vat()</span>
<a name="l00156"></a>00156   
<a name="l00157"></a>00157   <span class="comment">//adding vat to the cache--not in level 1</span>
<a name="l00158"></a>00158   <span class="keywordtype">void</span> write_file(<span class="keyword">const</span> key_type &amp; <span class="keywordtype">id</span>,VAT* v){
<a name="l00159"></a>00159     Cache-&gt;write_file(<span class="keywordtype">id</span>,*v);
<a name="l00160"></a>00160   }<span class="comment">//end add_vat()</span>
<a name="l00161"></a>00161   
<a name="l00162"></a>00162   <span class="comment">//adding vat to the cache--level 1</span>
<a name="l00163"></a>00163   <span class="keywordtype">bool</span> my_add_vat(<span class="keyword">const</span> key_type &amp; <span class="keywordtype">id</span>, VAT* v){
<a name="l00164"></a>00164     <span class="keywordtype">bool</span> ret;
<a name="l00165"></a>00165     ret=Cache-&gt;insert_levelone(<span class="keywordtype">id</span>,v);
<a name="l00166"></a>00166     <span class="comment">//delete v;</span>
<a name="l00167"></a>00167     <span class="keywordflow">return</span> ret;
<a name="l00168"></a>00168   }<span class="comment">//end add_vat()</span>
<a name="l00169"></a>00169   
<a name="l00174"></a><a class="code" href="classstorage__manager_3_01PAT_00_01VAT_00_01ALLOC_00_01file__storage_01_4.html#55c1a321d084edaf8483689e6fc8836d">00174</a>   <span class="keywordtype">void</span> initialize_vat(std::map&lt;int, int&gt; &amp; mapcount) {
<a name="l00175"></a>00175     std::map&lt;int, int&gt;::iterator it;
<a name="l00176"></a>00176     <span class="keywordflow">for</span> (it = mapcount.begin(); it != mapcount.end(); ++it) {
<a name="l00177"></a>00177       VAT* ivat=<span class="keyword">new</span> VAT();
<a name="l00178"></a>00178       ivat-&gt;resize(it-&gt;second);  
<a name="l00179"></a>00179       my_add_vat(it-&gt;first,ivat);
<a name="l00180"></a>00180     }
<a name="l00181"></a>00181   } <span class="comment">//end initialize_vat</span>
<a name="l00182"></a>00182 
<a name="l00183"></a>00183 <span class="keyword">private</span>:
<a name="l00184"></a>00184   cache_type* Cache;
<a name="l00185"></a>00185   
<a name="l00186"></a>00186   <span class="keyword">static</span> <span class="keywordtype">int</span> manager_count; <span class="comment">// Ensures that we do not delete the file twice.</span>
<a name="l00187"></a>00187 }; <span class="comment">// class StorageManager</span>
<a name="l00188"></a>00188 
<a name="l00189"></a>00189 <span class="keyword">template</span>&lt;<span class="keyword">class</span> PAT, <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>ALLOC, <span class="keyword">class </span>VAT &gt;
<a name="l00190"></a>00190 <span class="keywordtype">int</span> <a class="code" href="classstorage__manager.html">storage_manager&lt;PAT, VAT, ALLOC, file_storage &gt;::manager_count</a>=0;
<a name="l00191"></a>00191 
<a name="l00192"></a>00192 <span class="preprocessor">#endif</span>
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