/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.core.impl.domain.variable.inverserelation;
import java.io.Serializable;
import org.optaplanner.core.impl.domain.variable.descriptor.VariableDescriptor;
import org.optaplanner.core.impl.domain.variable.supply.Demand;
import org.optaplanner.core.impl.score.director.InnerScoreDirector;
/**
* To get an instance, demand a {@link CollectionInverseVariableDemand} from {@link InnerScoreDirector#getSupplyManager()}.
*/
public class CollectionInverseVariableDemand implements Demand<CollectionInverseVariableSupply>, Serializable {
private static final int CLASS_NAME_HASH_CODE = CollectionInverseVariableDemand.class.getName().hashCode() * 37;
protected final VariableDescriptor sourceVariableDescriptor;
public CollectionInverseVariableDemand(VariableDescriptor sourceVariableDescriptor) {
this.sourceVariableDescriptor = sourceVariableDescriptor;
}
public VariableDescriptor getSourceVariableDescriptor() {
return sourceVariableDescriptor;
}
// ************************************************************************
// Creation method
// ************************************************************************
@Override
public CollectionInverseVariableSupply createExternalizedSupply(InnerScoreDirector scoreDirector) {
return new ExternalizedCollectionInverseVariableSupply(sourceVariableDescriptor);
}
// ************************************************************************
// Equals/hashCode method
// ************************************************************************
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof CollectionInverseVariableDemand)) {
return false;
}
CollectionInverseVariableDemand other = (CollectionInverseVariableDemand) o;
if (!sourceVariableDescriptor.equals(other.sourceVariableDescriptor)) {
return false;
}
return true;
}
@Override
public int hashCode() {
return CLASS_NAME_HASH_CODE + sourceVariableDescriptor.hashCode();
}
@Override
public String toString() {
return getClass().getSimpleName() + "(" + sourceVariableDescriptor.getSimpleEntityAndVariableName() + ")";
}
}