UndefinedValue.java

package org.uva.ql.ast.value;


public class UndefinedValue extends Value {

	public UndefinedValue() {
		
	}

	@Override
	public boolean isDefined() {
		return false;
	}
	
	@Override
	public UndefinedValue value() {
		return this;
	}

	@Override
	public String toString() {
		return "Undefined";
	}

}