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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<title>TLookupValidator class Reference</title>
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<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center>
<hr><h1>TLookupValidator Class Reference</h1>Compares the string typed by a user with a list of acceptable values.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="validate_8h-source.html">validate.h</a>></code>
<p>
<p>Inheritance diagram for TLookupValidator::
<p><center><img src="classTLookupValidator.gif" usemap="#TLookupValidator_map" border="0"></center>
<map name="TLookupValidator_map">
<area href="classTValidator.html" alt="TValidator" shape="rect" coords="77,56,221,80">
<area href="classTObject.html" alt="TObject" shape="rect" coords="0,0,144,24">
<area href="classTStreamable.html" alt="TStreamable" shape="rect" coords="154,0,298,24">
<area href="classTStringLookupValidator.html" alt="TStringLookupValidator" shape="rect" coords="77,168,221,192">
</map>
<a href="classTLookupValidator-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classTLookupValidator.html#a0">TLookupValidator</a> ()</td></tr>
<tr><td nowrap align=right valign=top>virtual <a class="el" href="ttypes_8h.html#a13">Boolean</a> </td><td valign=bottom><a class="el" href="classTLookupValidator.html#a1">isValid</a> (const char *s)</td></tr>
<tr><td nowrap align=right valign=top>virtual <a class="el" href="ttypes_8h.html#a13">Boolean</a> </td><td valign=bottom><a class="el" href="classTLookupValidator.html#a2">lookup</a> (const char *s)</td></tr>
<tr><td colspan=2><br><h2>Static Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classTStreamable.html">TStreamable</a>* </td><td valign=bottom><a class="el" href="classTLookupValidator.html#d0">build</a> ()</td></tr>
<tr><td colspan=2><br><h2>Static Public Attributes</h2></td></tr>
<tr><td nowrap align=right valign=top>const char* const </td><td valign=bottom><a class="el" href="classTLookupValidator.html#p0">name</a></td></tr>
<tr><td colspan=2><br><h2>Protected Methods</h2></td></tr>
<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classTLookupValidator.html#b0">TLookupValidator</a> (<a class="el" href="ttypes_8h.html#a14">StreamableInit</a>)</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A lookup validator compares the string typed by a user with a list of acceptable values. TLookupValidator is an abstract validator type from which you can derive useful lookup validators. You will never create an instance of TLookupValidator.
<p>
When you create a lookup validator type, you need to specify a list of valid items and override the <a class="el" href="classTLookupValidator.html#a2">lookup</a>() method to return True only if the user input matches an item in that list. One example of a working descendant of TLookupValidator is <a class="el" href="classTStringLookupValidator.html">TStringLookupValidator</a>.
<p>
<p>
Definition at line <a class="el" href="validate_8h-source.html#l00752">752</a> of file <a class="el" href="validate_8h-source.html">validate.h</a>.<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="TLookupValidator::TLookupValidator"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<td class="md">
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<td nowrap valign="top"><b>
TLookupValidator::TLookupValidator (
</b></td>
<td valign="bottom"><b>
)<code> [inline]</code>
</b></td>
</tr>
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</td>
</tr>
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<tr>
<td>
</td>
<td>
<p>
Undocumented.
<p>
Definition at line <a class="el" href="validate_8h-source.html#l00758">758</a> of file <a class="el" href="validate_8h-source.html">validate.h</a>. </td>
</tr>
</table>
<a name="b0" doxytag="TLookupValidator::TLookupValidator"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td nowrap valign="top"><b>
TLookupValidator::TLookupValidator (
</b></td>
<td valign="bottom"><b>
<a class="el" href="ttypes_8h.html#a14">StreamableInit</a> )<code> [protected]</code>
</b></td>
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<p>
Each streamable class needs a "builder" to allocate the correct memory for its objects together with the initialized virtual table pointers. This is achieved by calling this constructor with an argument of type <a class="el" href="ttypes_8h.html#a14">StreamableInit</a>. </td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a name="d0" doxytag="TLookupValidator::build"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<td class="md">
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<td nowrap valign="top"><b>
<a class="el" href="classTStreamable.html">TStreamable</a> * TLookupValidator::build (
</b></td>
<td valign="bottom"><b>
)<code> [static]</code>
</b></td>
</tr>
</table>
</td>
</tr>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Called to create an object in certain stream-reading situations.
<p>
Reimplemented from <a class="el" href="classTValidator.html#d0">TValidator</a>.
<p>
Reimplemented in <a class="el" href="classTStringLookupValidator.html#d0">TStringLookupValidator</a>. </td>
</tr>
</table>
<a name="a1" doxytag="TLookupValidator::isValid"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
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<td nowrap valign="top"><b>
<a class="el" href="ttypes_8h.html#a13">Boolean</a> TLookupValidator::isValid (
</b></td>
<td valign="bottom"><b>
const char * <em>s</em> )<code> [virtual]</code>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Calls <a class="el" href="classTLookupValidator.html#a2">lookup</a>() to find the string `s' in the list of valid input items. Returns True if <a class="el" href="classTLookupValidator.html#a2">lookup</a>() returns True, meaning <a class="el" href="classTLookupValidator.html#a2">lookup</a>() found `s' in its list; otherwise returns False.
<p>
Reimplemented from <a class="el" href="classTValidator.html#a3">TValidator</a>. </td>
</tr>
</table>
<a name="a2" doxytag="TLookupValidator::lookup"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td nowrap valign="top"><b>
<a class="el" href="ttypes_8h.html#a13">Boolean</a> TLookupValidator::lookup (
</b></td>
<td valign="bottom"><b>
const char * <em>s</em> )<code> [virtual]</code>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Searches for the string `s' in the list of valid entries and returns True if it finds `s'; otherwise returns False. TLookupValidator's <a class="el" href="classTLookupValidator.html#a2">lookup</a>() is an abstract method that always returns False.
<p>
Descendant lookup validator types must override <a class="el" href="classTLookupValidator.html#a2">lookup</a>() to perform a search based on the actual list of acceptable items.
<p>
Reimplemented in <a class="el" href="classTStringLookupValidator.html#a3">TStringLookupValidator</a>. </td>
</tr>
</table>
<hr><h2>Member Data Documentation</h2>
<a name="p0" doxytag="TLookupValidator::name"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td nowrap valign="top"><b>
const char *const TLookupValidator::name<code> [static]</code>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Undocumented.
<p>
Reimplemented from <a class="el" href="classTValidator.html#p0">TValidator</a>.
<p>
Reimplemented in <a class="el" href="classTStringLookupValidator.html#p0">TStringLookupValidator</a>.
<p>
Definition at line <a class="el" href="validate_8h-source.html#l00781">781</a> of file <a class="el" href="validate_8h-source.html">validate.h</a>. </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="validate_8h-source.html">validate.h</a></ul>
<hr><address><small>Generated at Sat Sep 22 20:19:28 2001 for TVision by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.gif" alt="doxygen" align="middle" border=0
width=110 height=53></a>1.2.8.1 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>,
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