Role.java

/**
 *
 * Copyright
 * 2009-2015 Jayway Products AB
 * 2016-2017 Föreningen Sambruk
 *
 * Licensed under AGPL, Version 3.0 (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.gnu.org/licenses/agpl.txt
 *
 * 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 se.streamsource.dci.api;

import org.qi4j.api.injection.InjectionScope;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Base class for methodful roles
 */
public class Role<T>
   implements Comparable<Role<T>>
{
   // Self reference to the bound Data object
   protected T self;

   public Role()
   {
   }

   public Role(T self)
   {
      this.self = self;
   }

   public void bind(T newSelf)
   {
      self = newSelf;
   }

   @Override
   public boolean equals(Object obj)
   {
      if (obj == null)
         return false;

      if (obj instanceof Role)
      {
         return self.equals(((Role)obj).self);
      } else
         return false;
   }

   public int compareTo(Role<T> role)
   {
      return ((Comparable<T>)self).compareTo(role.self);
   }
}