DescriptorValueComparator.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2023 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.dossier.dossier;
 
import java.util.Comparator;
import org.turro.dossier.entity.DescriptorDefinition;
import org.turro.dossier.entity.DescriptorValue;
import org.turro.util.Comparison;
 
public class DescriptorValueComparator implements Comparator<DescriptorValue> {
 
  @Override
  public int compare(DescriptorValue o1, DescriptorValue o2) {
    DescriptorDefinition dd1 = o1.getDescriptorDefinition(),
                         dd2 = o2.getDescriptorDefinition();
    return Comparison.ascendant()
            .nulls(dd1, dd2)
            .compare(dd1.getOrderNumber(), dd2.getOrderNumber())
            .compare(dd1.getTitle(), dd2.getTitle())
            .compare(o1.getId(), o2.getId())
            .get();
  }
 
}