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<title>Genetic Algorithm Library: Population::CouplingOperations::GaBestAlwaysCoupling Class Reference</title>
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<div class="navpath"><a class="el" href="namespace_population.html">Population</a>::<a class="el" href="namespace_population_1_1_coupling_operations.html">CouplingOperations</a>::<a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html">GaBestAlwaysCoupling</a>
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<h1>Population::CouplingOperations::GaBestAlwaysCoupling Class Reference</h1><!-- doxytag: class="Population::CouplingOperations::GaBestAlwaysCoupling" --><!-- doxytag: inherits="Population::GaCouplingOperation" --><code><a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html" title="GaBestAlwaysCoupling coupling always takes chromosome with the best fitness value...">GaBestAlwaysCoupling</a></code> coupling always takes chromosome with the best fitness value from selection result set, and the second parents are sequentially taken from. If all parents are used, but more children should be produced, this coupling operation wraps-around parent counter for second the parents and starts from beginning until enough children is produced. When two parents are chosen this operation produces specified number of children using crossover operation and then it chooses child with best fitness value among produced children and the second parent is bound to it. This coupling use GaMultipleCrossoverCouplingParams class for parameters.
<a href="#_details">More...</a>
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<code>#include <source/CouplingOperations.h></code>
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Inherits <a class="el" href="class_population_1_1_ga_coupling_operation.html">Population::GaCouplingOperation</a>.
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<a href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual GAL_API void GACALL </td><td class="memItemRight" valign="bottom"><a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html#7763e5c1f096381ccb9afd3ee4cf921b">operator()</a> (const <a class="el" href="class_population_1_1_ga_population.html">GaPopulation</a> &population, <a class="el" href="class_population_1_1_ga_coupling_result_set.html">GaCouplingResultSet</a> &output, const <a class="el" href="class_population_1_1_ga_coupling_params.html">GaCouplingParams</a> &parameters, int workerId, int numberOfWorkers) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">More details are given in specification of GaCouplingOperation::operator () method. <a href="#7763e5c1f096381ccb9afd3ee4cf921b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="class_common_1_1_ga_parameters.html">GaParameters</a> *GACALL </td><td class="memItemRight" valign="bottom"><a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html#fd0cc16c1c68c3b512f5d77d708ebacf">MakeParameters</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">More details are given in specification of GaOperation::MakeParameters method. <a href="#fd0cc16c1c68c3b512f5d77d708ebacf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool GACALL </td><td class="memItemRight" valign="bottom"><a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html#08c19295dad469b9ffb5a3649c978e2b">CheckParameters</a> (const <a class="el" href="class_common_1_1_ga_parameters.html">GaParameters</a> &parameters) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Valid parameters must have number of offspring for production and number of produced children per parent pair grater then 0. <a href="#08c19295dad469b9ffb5a3649c978e2b"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
<code><a class="el" href="class_population_1_1_coupling_operations_1_1_ga_best_always_coupling.html" title="GaBestAlwaysCoupling coupling always takes chromosome with the best fitness value...">GaBestAlwaysCoupling</a></code> coupling always takes chromosome with the best fitness value from selection result set, and the second parents are sequentially taken from. If all parents are used, but more children should be produced, this coupling operation wraps-around parent counter for second the parents and starts from beginning until enough children is produced. When two parents are chosen this operation produces specified number of children using crossover operation and then it chooses child with best fitness value among produced children and the second parent is bound to it. This coupling use GaMultipleCrossoverCouplingParams class for parameters.
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This class has no built-in synchronizator, so <code>LOCK_OBJECT</code> and <code>LOCK_THIS_OBJECT</code> macros cannot be used with instances of this class. Because this genetic operation is stateless all public method are thread-safe. <hr><h2>Member Function Documentation</h2>
<a class="anchor" name="7763e5c1f096381ccb9afd3ee4cf921b"></a><!-- doxytag: member="Population::CouplingOperations::GaBestAlwaysCoupling::operator()" ref="7763e5c1f096381ccb9afd3ee4cf921b" args="(const GaPopulation &population, GaCouplingResultSet &output, const GaCouplingParams &parameters, int workerId, int numberOfWorkers) const " -->
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<td class="memname">void Population::CouplingOperations::GaBestAlwaysCoupling::operator() </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_population_1_1_ga_population.html">GaPopulation</a> & </td>
<td class="paramname"> <em>population</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="class_population_1_1_ga_coupling_result_set.html">GaCouplingResultSet</a> & </td>
<td class="paramname"> <em>output</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="class_population_1_1_ga_coupling_params.html">GaCouplingParams</a> & </td>
<td class="paramname"> <em>parameters</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>workerId</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>numberOfWorkers</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td width="100%"> const<code> [virtual]</code></td>
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More details are given in specification of GaCouplingOperation::operator () method.
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This method is thread-safe.
<p>Implements <a class="el" href="class_population_1_1_ga_coupling_operation.html#4277d5ddf98ec358a9c2666954041eda">Population::GaCouplingOperation</a>.</p>
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<a class="anchor" name="fd0cc16c1c68c3b512f5d77d708ebacf"></a><!-- doxytag: member="Population::CouplingOperations::GaBestAlwaysCoupling::MakeParameters" ref="fd0cc16c1c68c3b512f5d77d708ebacf" args="() const " -->
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<td class="memname">virtual <a class="el" href="class_common_1_1_ga_parameters.html">GaParameters</a>* GACALL Population::CouplingOperations::GaBestAlwaysCoupling::MakeParameters </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const<code> [inline, virtual]</code></td>
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More details are given in specification of GaOperation::MakeParameters method.
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This method is thread-safe. <dl class="return" compact><dt><b>Returns:</b></dt><dd>Method returns new instance of <a class="el" href="class_population_1_1_coupling_operations_1_1_ga_mulitple_crossover_coupling_params.html" title="This class should be used (directly or by inheritance) by coupling operations which...">GaMulitpleCrossoverCouplingParams</a> class.</dd></dl>
<p>Implements <a class="el" href="class_common_1_1_ga_operation.html#7da19e41bc86254ea540a55a09384023">Common::GaOperation</a>.</p>
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<a class="anchor" name="08c19295dad469b9ffb5a3649c978e2b"></a><!-- doxytag: member="Population::CouplingOperations::GaBestAlwaysCoupling::CheckParameters" ref="08c19295dad469b9ffb5a3649c978e2b" args="(const GaParameters &parameters) const " -->
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<td class="memname">virtual bool GACALL Population::CouplingOperations::GaBestAlwaysCoupling::CheckParameters </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_common_1_1_ga_parameters.html">GaParameters</a> & </td>
<td class="paramname"> <em>parameters</em> </td>
<td> ) </td>
<td width="100%"> const<code> [inline, virtual]</code></td>
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Valid parameters must have number of offspring for production and number of produced children per parent pair grater then 0.
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More details are given in specification of GaOperation::CheckParameters method.<p>
This method is thread-safe.
<p>Implements <a class="el" href="class_common_1_1_ga_operation.html#43b1b5c6a68418b09ec1ac04663d02b6">Common::GaOperation</a>.</p>
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<hr>The documentation for this class was generated from the following files:<ul>
<li>source/<a class="el" href="_coupling_operations_8h.html">CouplingOperations.h</a><li>source/<a class="el" href="_coupling_operations_8cpp.html">CouplingOperations.cpp</a></ul>
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<br/><a href="http://www.coolsoft-sd.com/ProductVersion.aspx?vid=9">Genetic Algorithm Library</a><br/><a href="http://www.coolsoft-sd.com/">Coolsoft Software Development</a>
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