Abstract Class - Notification

package cal;

import java.util.ArrayList;

public abstract class Notification{
	protected String recipient;
	protected String groupName;
	
	Notification(ArrayList<?> one){
		groupName = (String) one.get(0);
		recipient = (String) one.get(1);
	}

	Notification(String rec, String group){
		recipient = rec;
		groupName = group;
	}

	public String getRecipient() {
		return recipient;
	}

	public String getGroupName() {
		return groupName;
	}

	@Override
	public String toString() {
		return "Notification [recipient=" + recipient + ", groupName=" + groupName + "]";
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((groupName == null) ? 0 : groupName.hashCode());
		result = prime * result + ((recipient == null) ? 0 : recipient.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Notification other = (Notification) obj;
		if (groupName == null) {
			if (other.groupName != null)
				return false;
		} else if (!groupName.equals(other.groupName))
			return false;
		if (recipient == null) {
			if (other.recipient != null)
				return false;
		} else if (!recipient.equals(other.recipient))
			return false;
		return true;
	}
		
}