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AIMA-Java Core Algorithms from the book Artificial Intelligence a Modern Approach 3rd Ed.

There is a newer version: 3.0.0

package aima.core.environment.connectfour;

/**
 * Helper class for action ordering.
 * @author Ruediger Lunde
 */
public class ActionValuePair implements Comparable> {
	private ACTION action;
	private double value;
	
	public static  ActionValuePair createFor(ACTION action, double utility) {
		return new ActionValuePair(action, utility);
	}
	
	public ActionValuePair(ACTION action, double utility) {
		this.action = action;
		this.value = utility;
	}
	
	public ACTION getAction() {
		return action;
	}

	public double getValue() {
		return value;
	}

	@Override
	public int compareTo(ActionValuePair pair) {
		if (value < pair.value)
			return 1;
		else if (value > pair.value)
			return -1;
		else
			return 0;
	}
}