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359 lines
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<div class="title">operations_research::LocalSearchOperator Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>The base class for all local search operators. </p>
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<p>A local search operator is an object that defines the neighborhood of a solution. In other words, a neighborhood is the set of solutions which can be reached from a given solution using an operator.</p>
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<p>The behavior of the <a class="el" href="classoperations__research_1_1LocalSearchOperator.html" title="The base class for all local search operators.">LocalSearchOperator</a> class is similar to iterators. The operator is synchronized with an assignment (gives the current values of the variables); this is done in the <a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a832fd07f7355d16895841a4735e544c1">Start()</a> method.</p>
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<p>Then one can iterate over the neighbors using the MakeNextNeighbor method. This method returns an assignment which represents the incremental changes to the current solution. It also returns a second assignment representing the changes to the last solution defined by the neighborhood operator; this assignment is empty if the neighborhood operator cannot track this information. </p>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00805">805</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:af23505cc80b48f7de0c2e6a8d8424c5e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#af23505cc80b48f7de0c2e6a8d8424c5e">LocalSearchOperator</a> ()</td></tr>
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<tr class="memitem:a82deb7603d974196eaeee831422b105c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a82deb7603d974196eaeee831422b105c">~LocalSearchOperator</a> () override</td></tr>
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<tr class="memitem:a2951ae57e5fd3fce7d4f9b831594b460"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a2951ae57e5fd3fce7d4f9b831594b460">MakeNextNeighbor</a> (<a class="el" href="classoperations__research_1_1Assignment.html">Assignment</a> *delta, <a class="el" href="classoperations__research_1_1Assignment.html">Assignment</a> *deltadelta)=0</td></tr>
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<tr class="memitem:a832fd07f7355d16895841a4735e544c1"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a832fd07f7355d16895841a4735e544c1">Start</a> (const <a class="el" href="classoperations__research_1_1Assignment.html">Assignment</a> *assignment)=0</td></tr>
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<tr class="memitem:a19dbe14d545ff629f7756b32d570c349"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a19dbe14d545ff629f7756b32d570c349">Reset</a> ()</td></tr>
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<tr class="memitem:a9498f655675f66cd8fcf71041f7ef2cb"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="classoperations__research_1_1LocalSearchOperator.html">LocalSearchOperator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a9498f655675f66cd8fcf71041f7ef2cb">Self</a> () const</td></tr>
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<tr class="memitem:a7ce368143e93d9d49b6e087c53800e73"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a7ce368143e93d9d49b6e087c53800e73">HasFragments</a> () const</td></tr>
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<tr class="memitem:a2288c9bfc7b3d9ad8e06c346c675b2b0"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1LocalSearchOperator.html#a2288c9bfc7b3d9ad8e06c346c675b2b0">HoldsDelta</a> () const</td></tr>
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<tr class="memitem:afb3b013c5063d71566d5273793c1d828"><td class="memItemLeft" align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1BaseObject.html#afb3b013c5063d71566d5273793c1d828">DebugString</a> () const</td></tr>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a id="af23505cc80b48f7de0c2e6a8d8424c5e"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af23505cc80b48f7de0c2e6a8d8424c5e">◆ </a></span>LocalSearchOperator()</h2>
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<td class="memname">operations_research::LocalSearchOperator::LocalSearchOperator </td>
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<td>(</td>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00807">807</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a82deb7603d974196eaeee831422b105c">◆ </a></span>~LocalSearchOperator()</h2>
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<td class="memname">operations_research::LocalSearchOperator::~LocalSearchOperator </td>
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<td>(</td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">override</span></span> </td>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00808">808</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="afb3b013c5063d71566d5273793c1d828"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#afb3b013c5063d71566d5273793c1d828">◆ </a></span>DebugString()</h2>
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<td class="memname">virtual std::string operations_research::BaseObject::DebugString </td>
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<td> const</td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span><span class="mlabel">inherited</span></span> </td>
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<p>Reimplemented in <a class="el" href="classoperations__research_1_1Pack.html#a494cf6256ff568544390e507a6943112">operations_research::Pack</a>, <a class="el" href="classoperations__research_1_1Assignment.html#a709bad20694c9c117a3abfff24a60d03">operations_research::Assignment</a>, <a class="el" href="classoperations__research_1_1SequenceVar.html#af92814129c466409ff4c004002c2034d">operations_research::SequenceVar</a>, <a class="el" href="classoperations__research_1_1RegularLimit.html#a7a6e185350eade19733138b3d054bba9">operations_research::RegularLimit</a>, <a class="el" href="classoperations__research_1_1SearchLimit.html#a1e65e704ea5249bc9c346b46449ff1ba">operations_research::SearchLimit</a>, <a class="el" href="classoperations__research_1_1OptimizeVar.html#ae2a7ca2a1d7ffb879e2d7794aa3875dc">operations_research::OptimizeVar</a>, <a class="el" href="classoperations__research_1_1SolutionCollector.html#a13b2487c422d35cd36e9bfbc2810c652">operations_research::SolutionCollector</a>, <a class="el" href="classoperations__research_1_1IntVarIterator.html#afcbc1c1ac6f9230d7037807d3dbd46dc">operations_research::IntVarIterator</a>, <a class="el" href="classoperations__research_1_1Constraint.html#a443bf6da3f8db15c240cb92d20e37466">operations_research::Constraint</a>, <a class="el" href="classoperations__research_1_1CPFeasibilityFilter.html#a39c6c9bb0a7cdaa452daa56e740f10b4">operations_research::CPFeasibilityFilter</a>, <a class="el" href="classoperations__research_1_1Demon.html#a906a1bd16d33b9b841e68b2a06bbbfd2">operations_research::Demon</a>, <a class="el" href="classoperations__research_1_1DecisionBuilder.html#aca201d99227a6116c62418d28761aa9b">operations_research::DecisionBuilder</a>, <a class="el" href="classoperations__research_1_1Decision.html#a8c30db3cf86cc406442a05f5361fe4b9">operations_research::Decision</a>, <a class="el" href="classoperations__research_1_1ChristofidesFilteredDecisionBuilder.html#adfc28bc18d4fbc481c51c92b44d12739">operations_research::ChristofidesFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1ParallelSavingsFilteredDecisionBuilder.html#ad81f687a2b8b7f06fbe387c2a9159163">operations_research::ParallelSavingsFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1PropagationBaseObject.html#ae5b6f8cb73c1b76da152ad612f91c4ce">operations_research::PropagationBaseObject</a>, <a class="el" href="classoperations__research_1_1SequentialSavingsFilteredDecisionBuilder.html#a03eb36c220aacf9dc6eaa439a242b76c">operations_research::SequentialSavingsFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1ComparatorCheapestAdditionFilteredDecisionBuilder.html#a1ee5ca24459065ac257b5e4b7a48778e">operations_research::ComparatorCheapestAdditionFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1EvaluatorCheapestAdditionFilteredDecisionBuilder.html#aff3956d65c1486c9bdab3fd850dbb5a6">operations_research::EvaluatorCheapestAdditionFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1LocalCheapestInsertionFilteredDecisionBuilder.html#af623caea58c368f9b6bd5c3c7cca4e01">operations_research::LocalCheapestInsertionFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1GlobalCheapestInsertionFilteredDecisionBuilder.html#a396d1d7fcc6b3b71cdb07105867b83cf">operations_research::GlobalCheapestInsertionFilteredDecisionBuilder</a>, <a class="el" href="classoperations__research_1_1ArrayWithOffset.html#ae3389cbd1f1f47c3c0ba0d8c9d98c8d2">operations_research::ArrayWithOffset< T ></a>, <a class="el" href="classoperations__research_1_1SearchLog.html#ae853a2dfed7755b376ccbee1c534682f">operations_research::SearchLog</a>, <a class="el" href="classoperations__research_1_1BooleanVar.html#acad14290f1f14a53adc0feb170d67f22">operations_research::BooleanVar</a>, <a class="el" href="classoperations__research_1_1LocalSearchMonitor.html#ab47cdaf51e8a28905ab0967a65138adc">operations_research::LocalSearchMonitor</a>, <a class="el" href="classoperations__research_1_1PropagationMonitor.html#a303fb6b35a71fdbcba21088d88a222ac">operations_research::PropagationMonitor</a>, <a class="el" href="classoperations__research_1_1LocalSearchFilterManager.html#a92e302e76f3c9a4033c390cbd2be9c48">operations_research::LocalSearchFilterManager</a>, <a class="el" href="classoperations__research_1_1PathWithPreviousNodesOperator.html#ac3dd1fd60d3ebe3777a8369787f78275">operations_research::PathWithPreviousNodesOperator</a>, <a class="el" href="classoperations__research_1_1DelayedCallMethod2.html#a58c60413c247ee5d5fb627dda5aa20f9">operations_research::DelayedCallMethod2< T, P, Q ></a>, <a class="el" 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<p class="definition">Definition at line <a class="el" href="constraint__solver_8h_source.html#l03093">3093</a> of file <a class="el" href="constraint__solver_8h_source.html">constraint_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7ce368143e93d9d49b6e087c53800e73">◆ </a></span>HasFragments()</h2>
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<p>Reimplemented in <a class="el" href="classoperations__research_1_1BaseLns.html#a4d8adbee4dc4ff4795904ef4e817a5f2">operations_research::BaseLns</a>.</p>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00815">815</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2288c9bfc7b3d9ad8e06c346c675b2b0">◆ </a></span>HoldsDelta()</h2>
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<td class="memname">virtual bool operations_research::LocalSearchOperator::HoldsDelta </td>
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<td> const</td>
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<p>Reimplemented in <a class="el" href="classoperations__research_1_1VarLocalSearchOperator.html#a8b2f5a0a53ca3a5fd370d51d5cd03acf">operations_research::VarLocalSearchOperator< V, Val, Handler ></a>, and <a class="el" href="classoperations__research_1_1VarLocalSearchOperator.html#a8b2f5a0a53ca3a5fd370d51d5cd03acf">operations_research::VarLocalSearchOperator< IntVar, int64, IntVarLocalSearchHandler ></a>.</p>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00816">816</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2951ae57e5fd3fce7d4f9b831594b460">◆ </a></span>MakeNextNeighbor()</h2>
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<td class="memname">virtual bool operations_research::LocalSearchOperator::MakeNextNeighbor </td>
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<td class="paramtype"><a class="el" href="classoperations__research_1_1Assignment.html">Assignment</a> * </td>
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<td class="paramname"><em>delta</em>, </td>
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<p>Implemented in <a class="el" href="classoperations__research_1_1IntVarLocalSearchOperator.html#a5bc78fdde6b4e5a6ad9c3b00a6d47d65">operations_research::IntVarLocalSearchOperator</a>, <a class="el" href="classoperations__research_1_1PairNodeSwapActiveOperator.html#a0980c455528f5b1ba4ecd1137d412403">operations_research::PairNodeSwapActiveOperator< swap_first ></a>, <a class="el" href="classoperations__research_1_1IndexPairSwapActiveOperator.html#a11a3a2e7cea2b5b5197b9a17a71dc075">operations_research::IndexPairSwapActiveOperator</a>, <a class="el" href="classoperations__research_1_1SwapIndexPairOperator.html#aa898c7fe71ea8c1bf1d16ac656037c01">operations_research::SwapIndexPairOperator</a>, and <a class="el" href="classoperations__research_1_1MakePairActiveOperator.html#adf56eeee1f33c11ce6f80d4a881ada31">operations_research::MakePairActiveOperator</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a19dbe14d545ff629f7756b32d570c349">◆ </a></span>Reset()</h2>
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<td class="memname">virtual void operations_research::LocalSearchOperator::Reset </td>
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<p>Reimplemented in <a class="el" href="classoperations__research_1_1PathOperator.html#afd31bd01947ecfcfcaf0871f1268d54d">operations_research::PathOperator</a>.</p>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00811">811</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9498f655675f66cd8fcf71041f7ef2cb">◆ </a></span>Self()</h2>
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<td class="memname">virtual const <a class="el" href="classoperations__research_1_1LocalSearchOperator.html">LocalSearchOperator</a>* operations_research::LocalSearchOperator::Self </td>
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<p class="definition">Definition at line <a class="el" href="constraint__solveri_8h_source.html#l00813">813</a> of file <a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a832fd07f7355d16895841a4735e544c1">◆ </a></span>Start()</h2>
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<p>Implemented in <a class="el" href="classoperations__research_1_1VarLocalSearchOperator.html#aea532902ec6591bfdd80bfcf8bc101e5">operations_research::VarLocalSearchOperator< V, Val, Handler ></a>, and <a class="el" href="classoperations__research_1_1VarLocalSearchOperator.html#aea532902ec6591bfdd80bfcf8bc101e5">operations_research::VarLocalSearchOperator< IntVar, int64, IntVarLocalSearchHandler ></a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li><a class="el" href="constraint__solveri_8h_source.html">constraint_solveri.h</a></li>
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