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Op 05-05-12 08:50, Nurlan schreef:
<blockquote cite="mid:1336200655939-3964160.post@n3.nabble.com"
type="cite">
<pre wrap="">Hi guys!
I'm using drools-planner-*5.4.0.CR1*...
Let's say I have some solution(NOT FINAL BEST SOLUTION) which done by human
manually and I want get list of broken contraints for that solution, I've
tried
this.scoreDirector.setWorkingSolution(someSolution);
this.scoreDirector.calculateScore();
</pre>
</blockquote>
Something like that should work. For the exact correct usage, see
the new section for the 5.4.0.Final manual:<br>
<a class="moz-txt-link-freetext" href="https://hudson.jboss.org/hudson/view/Drools%20jBPM/job/drools-planner/lastSuccessfulBuild/artifact/drools-planner-docs/target/docbook/publish/en-US/html_single/index.html#d0e3786">https://hudson.jboss.org/hudson/view/Drools%20jBPM/job/drools-planner/lastSuccessfulBuild/artifact/drools-planner-docs/target/docbook/publish/en-US/html_single/index.html#d0e3786</a><br>
It should never return null. I do in the examples all the time.<br>
<br>
There is a point though, that the code above still requires the
creation of a Solver (but it doesn't you to actually run it):<br>
<pre class="JAVA"><a id="d0e3786"><span class="java_type">ScoreDirectorFactory</span><span class="java_plain"> scoreDirectorFactory </span><span class="java_operator">=</span><span class="java_plain"> solverFactory.buildSolver()</span><span class="java_separator">.</span><span class="java_plain">getScoreDirectorFactory</span><span class="java_separator">();</span>
<span class="java_type">ScoreDirector</span><span class="java_plain"> guiScoreDirector </span><span class="java_operator">=</span><span class="java_plain"> scoreDirectorFactory</span><span class="java_separator">.</span><span class="java_plain">buildScoreDirector</span><span class="java_separator">();
</span></a><a id="d0e3786"><span class="java_plain">guiScoreDirector</span><span class="java_separator">.</span><span class="java_plain">setWorkingSolution</span><span class="java_separator">(</span><span class="java_plain">solution</span><span class="java_separator">);</span>
<span class="java_type">Score</span><span class="java_plain"> score </span><span class="java_operator">=</span><span class="java_plain"> guiScoreDirector</span><span class="java_separator">.</span><span class="java_plain">calculateScore</span><span class="java_separator">();</span></a><a id="d0e3786">
</a></pre>
Feel free to make a jira if you agree that it shouldn't be needed to
do a ".buildSolver()" in that code.<br>
<br>
<blockquote cite="mid:1336200655939-3964160.post@n3.nabble.com"
type="cite">
<pre wrap="">
it returns *null* since it isn't connected with Solver
then I've tried using Solver with
<termination><maximumStepCount>0</maximumStepCount></termination>:
this.scoreDirector.setWorkingSolution(someSolution);
this.solver.setPlanningProblem(this.scoreDirector.getWorkingSolution());
this.solver.solve();
this.scoreDirector.setWorkingSolution(this.solver.getBestSolution());
this.scoreDirector.calculateScore();
then it shows *java.lang.UnsupportedOperationException* because there is no
best solution in Solver
java.lang.UnsupportedOperationException: StepCountTermination can only be
used for phase termination.
at
org.drools.planner.core.termination.StepCountTermination.isSolverTerminated(StepCountTermination.java:40)
at
org.drools.planner.core.termination.OrCompositeTermination.isSolverTerminated(OrCompositeTermination.java:42)
at
org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:181)
at
org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:151)
how can implement this task? or I have to implement setBestSolution in
Solver, i think this is bad idea...
</pre>
</blockquote>
bad idea indeed<br>
<blockquote cite="mid:1336200655939-3964160.post@n3.nabble.com"
type="cite">
<pre wrap="">
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
With kind regards,
Geoffrey De Smet</pre>
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