/*
 * Copyright 2015 Quality and Usability Lab, Telekom Innvation Laboratories, TU Berlin..
 *
 * 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 de.tel.moccha.util;

import de.tel.moccha.entities.Category;
import de.zell.android.util.EntityComparator;
import de.zell.android.util.db.Entity;

/**
 * Represents the category comparator which is a sub class of the 
 * entity comparator to compare entities.
 * The comparator compares the names of the given categories.
 * 
 * @author Christopher Zell <zelldon91@googlemail.com>
 */
public class CategoryComparator extends EntityComparator {

  @Override
  public int compare(Entity arg0, Entity arg1) {
    return ((Category) arg0).getName().compareTo(((Category) arg1).getName());
  }
  
}

/*
 * Copyright 2015 Quality and Usability Lab, Telekom Innvation Laboratories, TU Berlin..
 *
 * 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 de.tel.moccha.util;

import de.tel.moccha.entities.Category;
import de.zell.android.util.EntityComparator;
import de.zell.android.util.db.Entity;

/**
 * Represents the category comparator which is a sub class of the 
 * entity comparator to compare entities.
 * The comparator compares the names of the given categories.
 * 
 * @author Christopher Zell <zelldon91@googlemail.com>
 */
public class CategoryComparator extends EntityComparator {

  @Override
  public int compare(Entity arg0, Entity arg1) {
    String firstName = ((Category) arg0).getName();
    String secName = ((Category) arg1).getName();
    if (firstName != null && secName != null)
      return firstName.compareTo(secName);
    else 
      return -1;
  }
  
}

Adjust compareTo Method