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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>FastDB: dbUserFunction class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.5 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a></div><h1>dbUserFunction Class Reference</h1><code>#include <<a class="el" href="query_8h-source.html">query.h</a>></code><p><a href="classdbUserFunction-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 Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona0" doxytag="dbUserFunction::getParameterType" ></a>int </td><td class="memItemRight" valign=bottom><b>getParameterType</b> ()</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona1" doxytag="dbUserFunction::getNumberOfParameters" ></a>int </td><td class="memItemRight" valign=bottom><b>getNumberOfParameters</b> ()</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona2" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(db_int8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona3" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(real8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona4" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(char const *), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona5" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(db_int8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona6" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(real8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona7" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(char const *), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona8" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(db_int8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona9" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(real8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona10" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(char const *), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona11" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(db_int8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona12" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(real8), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona13" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(char const *), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona14" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona15" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona16" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona17" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona18" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona19" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona20" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona21" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona22" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (bool(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona23" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (char *(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona24" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (db_int8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctiona25" doxytag="dbUserFunction::dbUserFunction" ></a> </td><td class="memItemRight" valign=bottom><b>dbUserFunction</b> (real8(*f)(<a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &, <a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a> &), char *name)</td></tr><tr><td colspan=2><br><h2>Static Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctione0" doxytag="dbUserFunction::find" ></a><a class="el" href="classdbUserFunction.html">dbUserFunction</a> * </td><td class="memItemRight" valign=bottom><b>find</b> (char const *name)</td></tr><tr><td colspan=2><br><h2>Friends</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctionn0" doxytag="dbUserFunction::dbDatabase" ></a>class </td><td class="memItemRight" valign=bottom><a class="el" href="classdbUserFunction.html#dbUserFunctionn0">dbDatabase</a></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="anchor" name="dbUserFunctionn1" doxytag="dbUserFunction::dbCompiler" ></a>class </td><td class="memItemRight" valign=bottom><b>dbCompiler</b></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>dbUserFunction class is used to bind user defined functions to the database. This class contains list of all user functions declared by application and provides method for locating function by name and adding new user defined functions. User defined functions can have fro 0 till 3 parameters (of <code><a class="el" href="classdbUserFunctionArgument.html">dbUserFunctionArgument</a></code> type) and should return integer, boolean, real or string value. Type of the function is detected by overloaded constructors. User defined function descriptor is cerated by <code>USER_FUNC</code> macro. <p><hr>The documentation for this class was generated from the following file:<ul><li><a class="el" href="query_8h-source.html">query.h</a></ul><hr size="1"><address style="align: right;"><small>Generated on Thu Feb 12 13:04:49 2004 for FastDB by<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border=0 > </a>1.3.5 </small></address></body></html>⌨️ 快捷键说明
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