I'm trying to implement a solution with multiple entity classes, and it fails with the following error message:
no entityClass (null) configured and because there are multiple in the entityClassSet ([class com.myspace.wla.JobA, class com.myspace.wla.JobB]), it can not be deduced automatically
This is the solver configuration:
<?xml version="1.0" encoding="UTF-8"?>
<solver xStreamId="1">
<solutionClass>com.myspace.wla.AllocationSolution</solutionClass>
<entityClass>com.myspace.wla.JobA</entityClass>
<entityClass>com.myspace.wla.JobB</entityClass>
<scoreDirectorFactory xStreamId="3"/>
<termination xStreamId="4">
<millisecondsSpentLimit>0</millisecondsSpentLimit>
<secondsSpentLimit>30</secondsSpentLimit>
<minutesSpentLimit>0</minutesSpentLimit>
<hoursSpentLimit>0</hoursSpentLimit>
<daysSpentLimit>0</daysSpentLimit>
</termination>
<constructionHeuristic xStreamId="5">
<constructionHeuristicType>FIRST_FIT</constructionHeuristicType>
<entitySorterManner>NONE</entitySorterManner>
</constructionHeuristic>
<localSearch xStreamId="6">
<unionMoveSelector>
<changeMoveSelector>
<entitySelector>
<entityClass>com.myspace.wla.JobA</entityClass>
</entitySelector>
<valueSelector>
<variableName>Computer</variableName>
<selectionOrder>SORTED</selectionOrder>
</valueSelector>
</changeMoveSelector>
<changeMoveSelector>
<entitySelector>
<entityClass>com.myspace.wla.JobB</entityClass>
</entitySelector>
<valueSelector>
<variableName>Computer</variableName>
<selectionOrder>SORTED</selectionOrder>
</valueSelector>
</changeMoveSelector>
</unionMoveSelector>
</localSearch>
</solver>
This is the solution entity:
package com.myspace.wla;
import java.util.List;
import org.optaplanner.core.api.domain.solution.PlanningSolution;
import org.optaplanner.core.api.domain.solution.PlanningEntityCollectionProperty;
import org.optaplanner.core.api.domain.solution.drools.ProblemFactCollectionProperty;
import org.optaplanner.core.api.domain.solution.PlanningScore;
import org.optaplanner.core.api.domain.valuerange.ValueRangeProvider;
@PlanningSolution
@javax.xml.bind.annotation.XmlRootElement
@javax.xml.bind.annotation.XmlAccessorType(javax.xml.bind.annotation.XmlAccessType.FIELD)
public class AllocationSolution implements java.io.Serializable {
static final long serialVersionUID = 1L;
@javax.annotation.Generated({"org.optaplanner.workbench.screens.domaineditor.client.widgets.planner.PlannerDataObjectEditor"})
@javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter(org.optaplanner.persistence.jaxb.api.score.buildin.hardsoft.HardSoftScoreJaxbXmlAdapter.class)
@org.kie.api.definition.type.Label("Generated Planner score field")
private org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore score;
private java.util.List<com.myspace.wla.Computer> computerList;
private java.util.List<com.myspace.wla.JobA> jobAList;
private int id;
private java.util.List<com.myspace.wla.JobB> jobBList;
public AllocationSolution() {
}
@PlanningScore
public org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore getScore() {
return this.score;
}
public void setScore(
org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore score) {
this.score = score;
}
@ValueRangeProvider(id = "computerRange")
@ProblemFactCollectionProperty
public java.util.List<com.myspace.wla.Computer> getComputerList() {
return this.computerList;
}
public void setComputerList(
List<com.myspace.wla.Computer> computerList) {
this.computerList = computerList;
}
@PlanningEntityCollectionProperty
@ValueRangeProvider(id = "jobARange")
public List<com.myspace.wla.JobA> getJobAList() {
return this.jobAList;
}
public void setJobAList(java.util.List<com.myspace.wla.JobA> jobAList) {
this.jobAList = jobAList;
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
@PlanningEntityCollectionProperty
@ValueRangeProvider(id = "jobBRange")
public List<com.myspace.wla.JobB> getJobBList() {
return this.jobBList;
}
public void setJobBList(java.util.List<com.myspace.wla.JobB> jobBList) {
this.jobBList = jobBList;
}
public AllocationSolution(
org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore score,
java.util.List<com.myspace.wla.Computer> computerList,
java.util.List<com.myspace.wla.JobA> jobAList, int id,
java.util.List<com.myspace.wla.JobB> jobBList) {
this.score = score;
this.computerList = computerList;
this.jobAList = jobAList;
this.id = id;
this.jobBList = jobBList;
}
}This is the fact entity:
package com.myspace.wla;
public class Computer implements java.io.Serializable {
static final long serialVersionUID = 1L;
private int id;
private int color;
public Computer() {
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
public int getColor() {
return this.color;
}
public void setColor(int color) {
this.color = color;
}
public Computer(int id, int color) {
this.id = id;
this.color = color;
}
}This is the first planning entity (the second one is identical with a different name):
package com.myspace.wla;
import org.optaplanner.core.api.domain.solution.drools.ProblemFactCollectionProperty;
import org.optaplanner.core.api.domain.entity.PlanningEntity;
import org.optaplanner.core.api.domain.variable.PlanningVariable;
@PlanningEntity
public class JobA implements java.io.Serializable {
static final long serialVersionUID = 1L;
private int id;
private com.myspace.wla.Computer computer;
private int color;
public JobA() {
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
@PlanningVariable(valueRangeProviderRefs = {"computerRange"})
public com.myspace.wla.Computer getComputer() {
return this.computer;
}
public void setComputer(com.myspace.wla.Computer computer) {
this.computer = computer;
}
public int getColor() {
return this.color;
}
public void setColor(int color) {
this.color = color;
}
public JobA(int id, com.myspace.wla.Computer computer, int color) {
this.id = id;
this.computer = computer;
this.color = color;
}
}Thanks, Eliezer
