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00197 <font class="preprocessor"></font>    dbQueryExpression&amp; operator,(std::string <font class="keyword">const</font>&amp; str) {
00198         <font class="keywordflow">return</font> add(dbQueryElement::qVarStdString, &amp;str);
00199     }
00200 <font class="preprocessor">#endif</font>
00201 <font class="preprocessor"></font>    dbQueryExpression&amp; operator,(dbQueryExpression <font class="keyword">const</font>&amp; expr) { 
00202         *last = <font class="keyword">new</font> <a class="code" href="classdbQueryElement.html">dbQueryElement</a>(dbQueryElement::qExpression, <font class="stringliteral">"("</font>);
00203         (*last)-&gt;next = expr.<a class="code" href="classdbQueryExpression.html#dbQueryExpressiono0">first</a>;
00204         last = expr.<a class="code" href="classdbQueryExpression.html#dbQueryExpressiono1">last</a>;
00205         *last = <font class="keyword">new</font> <a class="code" href="classdbQueryElement.html">dbQueryElement</a>(dbQueryElement::qExpression, <font class="stringliteral">")"</font>);
00206         last = &amp;(*last)-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElemento0">next</a>;
00207         operand = <font class="keyword">false</font>;
00208         <font class="keywordflow">return</font> *<font class="keyword">this</font>;
00209     }
00210     dbQueryExpression&amp; operator,(dbComponent <font class="keyword">const</font>&amp; comp) { 
00211         add(dbQueryElement::qExpression, comp.<a class="code" href="classdbComponent.html#dbComponentm0">structure</a>);
00212         <font class="keywordflow">if</font> (comp.<a class="code" href="classdbComponent.html#dbComponentm1">field</a> != NULL) { 
00213             add(dbQueryElement::qExpression, <font class="stringliteral">"."</font>);
00214             add(dbQueryElement::qExpression, comp.<a class="code" href="classdbComponent.html#dbComponentm1">field</a>);
00215         }
00216         operand = <font class="keyword">false</font>;
00217         <font class="keywordflow">return</font> *<font class="keyword">this</font>;
00218     }
00219     dbQueryExpression&amp; operator += (dbComponent <font class="keyword">const</font>&amp; comp) { 
00220         <font class="keywordflow">return</font> *<font class="keyword">this</font>,comp;
00221     }
00222     dbQueryExpression&amp; operator += (<font class="keywordtype">char</font> <font class="keyword">const</font>* ptr) { 
00223         <font class="keywordflow">return</font> add(dbQueryElement::qExpression, ptr);
00224     }
00225 <font class="preprocessor">#ifndef NO_MEMBER_TEMPLATES</font>
00226 <font class="preprocessor"></font>    <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
00227     dbQueryExpression&amp; operator,(<a class="code" href="classdbReference.html">dbReference&lt;T&gt;</a> <font class="keyword">const</font>&amp; value) { 
00228         <font class="keywordflow">return</font> add(dbQueryElement::qVarReference, &amp;value, &amp;T::dbDescriptor);
00229     }
00230 
00231     <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
00232     <font class="keyword">inline</font> dbQueryExpression&amp; operator,(<a class="code" href="classdbArray.html">dbArray</a>&lt; <a class="code" href="classdbReference.html">dbReference&lt;T&gt;</a> &gt; <font class="keyword">const</font>&amp; value) { 
00233         <font class="keywordflow">return</font> add(dbQueryElement::qVarArrayOfRef, &amp;value, 
00234                       &amp;T::dbDescriptor);
00235     }
00236 
00237     <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
00238     <font class="keyword">inline</font> dbQueryExpression&amp; operator,(<a class="code" href="classdbArray.html">dbArray</a>&lt; <a class="code" href="classdbReference.html">dbReference&lt;T&gt;</a> &gt;<font class="keyword">const</font>* <font class="keyword">const</font>&amp; value) { 
00239         <font class="keywordflow">return</font> add(dbQueryElement::qVarArrayOfRefPtr, &amp;value, &amp;T::dbDescriptor);
00240     }
00241 <font class="preprocessor">#endif</font>
00242 <font class="preprocessor"></font>};
00243 
00244 <font class="keyword">class </font>dbOrderByNode;
00245 <font class="keyword">class </font>dbFollowByNode;
00246 
00247 
<a name="l00251"></a><a class="code" href="classdbCompiledQuery.html">00251</a> <font class="keyword">class </font>FASTDB_DLL_ENTRY dbCompiledQuery { 
00252   <font class="keyword">public</font>:
00253     dbExprNode*        tree;
00254     dbOrderByNode*     order;
00255     dbFollowByNode*    follow;
00256     <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* table;
00257     
00258     <font class="keyword">enum</font> IteratorInit { 
00259         StartFromAny,
00260         StartFromFirst,
00261         StartFromLast,
00262         StartFromRef, 
00263         StartFromArray,
00264         StartFromArrayPtr
00265     };
00266     IteratorInit       startFrom;
00267     <font class="keywordtype">void</font> <font class="keyword">const</font>*        root;
00268 
00269     <font class="keywordtype">void</font> destroy();
00270 
00271     <font class="keywordtype">bool</font> compiled() { <font class="keywordflow">return</font> tree != NULL; }
00272 
00273     dbCompiledQuery() { 
00274         tree = NULL;
00275         order = NULL;
00276         follow = NULL;
00277         table = NULL;
00278         startFrom = StartFromAny;
00279     }
00280 };
00281 
<a name="l00286"></a><a class="code" href="classdbQuery.html">00286</a> <font class="keyword">class </font>FASTDB_DLL_ENTRY dbQuery : <font class="keyword">public</font> dbCompiledQuery { 
00287     <font class="keyword">friend</font> <font class="keyword">class </font>dbCompiler;
00288     <font class="keyword">friend</font> <font class="keyword">class </font><a class="code" href="classdbDatabase.html">dbDatabase</a>;
00289     <font class="keyword">friend</font> <font class="keyword">class </font>dbSubSql;
00290   <font class="keyword">private</font>:
00291     dbMutex            mutex;
00292     <a class="code" href="classdbQueryElement.html">dbQueryElement</a>*    elements;
00293     <a class="code" href="classdbQueryElement.html">dbQueryElement</a>**   nextElement;
00294     <font class="keywordtype">bool</font>               operand;
00295     <font class="keywordtype">bool</font>               mutexLocked;
00296 
00297     <font class="comment">//</font>
00298     <font class="comment">// Prohibite query copying</font>
00299     <font class="comment">//</font>
00300     dbQuery(dbQuery <font class="keyword">const</font>&amp;) {} 
00301     dbQuery&amp; operator =(dbQuery <font class="keyword">const</font>&amp;) { <font class="keywordflow">return</font> *<font class="keyword">this</font>; }
00302 
00303   <font class="keyword">public</font>:
00304     <font class="keywordtype">int</font>                pos; <font class="comment">// position of condition in statement</font>
00305 
00306 
00307     <font class="keywordtype">char</font>* dump(<font class="keywordtype">char</font>* buf) { 
00308         <font class="keywordtype">char</font>* p = buf;
00309         <font class="keywordflow">for</font> (<a class="code" href="classdbQueryElement.html">dbQueryElement</a>* elem = elements; elem != NULL; elem = elem-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElemento0">next</a>) { 
00310             p = elem-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElementa2">dump</a>(p);
00311         }
00312         <font class="keywordflow">return</font> buf;
00313     }
00314 
00315     <font class="keywordtype">char</font>* dumpValues(<font class="keywordtype">char</font>* buf) { 
00316         <font class="keywordtype">char</font>* p = buf;
00317         <font class="keywordflow">for</font> (<a class="code" href="classdbQueryElement.html">dbQueryElement</a>* elem = elements; elem != NULL; elem = elem-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElemento0">next</a>) { 
00318             p = elem-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElementa3">dumpValues</a>(p);
00319         }
00320         <font class="keywordflow">return</font> buf;
00321     }
00322 
00323     dbQuery&amp; append(dbQueryElement::ElementType type, <font class="keywordtype">void</font> <font class="keyword">const</font>* ptr,
00324                     <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* table = NULL) 
00325     { 
00326         nextElement = &amp;(*nextElement=<font class="keyword">new</font> <a class="code" href="classdbQueryElement.html">dbQueryElement</a>(type,ptr,table))-&gt;<a class="code" href="classdbQueryElement.html#dbQueryElemento0">next</a>;
00327         operand = (type == dbQueryElement::qExpression);
00328         <font class="keywordflow">return</font> *<font class="keyword">this</font>;
00329     }
00330 
00331     dbQuery&amp; reset();
00332 
00333     <font class="comment">//</font>
00334     <font class="comment">// Redefined operator = and , make it possible to specify query in the</font>
00335     <font class="comment">// following way:</font>
00336     <font class="comment">//         int x, y;</font>
00337     <font class="comment">//         dbDataTime dt;</font>
00338     <font class="comment">//         dbQuery q; </font>
00339     <font class="comment">//         dbCursor&lt;record&gt; cursor;</font>
00340     <font class="comment">//         q = "x=",x,"and y=",y,"and",dt == "date";</font>
00341     <font class="comment">//         for (x = 0; x &lt; max_x; x++) { </font>
00342     <font class="comment">//             for (y = 0; y &lt; max_y; y++) { </font>
00343     <font class="comment">//                 cursor.select(q);</font>
00344     <font class="comment">//                 ...</font>
00345     <font class="comment">//             }</font>
00346     <font class="comment">//         }</font>
00347 
00348     dbQuery&amp; add(dbQueryExpression <font class="keyword">const</font>&amp; expr); 
00349 
00350     dbQuery&amp; And(<font class="keywordtype">char</font> <font class="keyword">const</font>* str) { 
00351         <font class="keywordflow">if</font> (elements != NULL) { 
00352             append(dbQueryElement::qExpression, <font class="stringliteral">"and"</font>);
00353         }
00354         <font class="keywordflow">return</font> append(dbQueryElement::qExpression, str);
00355     }
00356 
00357     dbQuery&amp; Or(<font class="keywordtype">char</font> <font class="keyword">const</font>* str) { 
00358         <font class="keywordflow">if</font> (elements != NULL) { 
00359             append(dbQueryElement::qExpression, <font class="stringliteral">"or"</font>);
00360         }
00361         <font class="keywordflow">return</font> append(dbQueryElement::qExpression, str);
00362     }
00363 
00364     dbQuery&amp; add(<font class="keywordtype">char</font> <font class="keyword">const</font>* str) { 
00365         <font class="keywordflow">return</font> append(operand ? dbQueryElement::qVarString 
00366                       : dbQueryElement::qExpression, str);
00367     }
00368     dbQuery&amp; add(<font class="keywordtype">char</font> <font class="keyword">const</font>** str) { 
00369         <font class="keywordflow">return</font> append(dbQueryElement::qVarStringPtr, str);
00370     }
00371 <font class="preprocessor">#ifdef USE_STD_STRING</font>
00372 <font class="preprocessor"></font>    dbQuery&amp; add(std::string <font class="keyword">const</font>&amp; str) { 
00373         <font class="keywordflow">return</font> append(dbQueryElement::qVarStdString, &amp;str);
00374     }