abstractvalidatable.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 29 行

/*
 * $Id: AbstractValidatable.java,v 1.1 2004/02/26 21:17:12 lsantha Exp $
 */
package org.jnode.wt.components;

import org.jnode.wt.components.Validateable;

/**
 * @author vali
 */
public abstract class AbstractValidatable implements Validateable {
    protected boolean validFlag = true;

    public void validate() {
        recalculate();
        validFlag = true;
    }

    public void invalidate() {
        validFlag = false;
    }

    public boolean isValid() {
        return validFlag;
    }

    public abstract void recalculate();
}