java-design-patterns/visitor/src/main/java/com/iluwatar/UnitVisitor.java

package com.iluwatar;

/**
 * 
 * Visitor interface.
 *
 */
public interface UnitVisitor {

	void visitSoldier(Soldier soldier);
	void visitSergeant(Sergeant sergeant);
	void visitCommander(Commander commander);
	
}