type.java

主要是对串口驱动的的一些控制源码！！！ 在下载javacomm20-win32.zip后就可以使用。

// Copyright <applicate>, 2002. All Rights Reserved.
// This software is the proprietary information of www.applicate.de.
// Use is subject to license terms.

package de.applicate.util.lang;



import java.io.Serializable;

/**
 * If there can be more than one instance of a class with the
 * same ID use the Type class. If not use Enum.
 * <p>
 * You should not use "==" on instances of a Type class!
 *
 * @author     hs
 * @created    2. April 2002
 * @version    $Author: mwulff $ checked in $Revision: 1.1 $ at $Date: 2003/01/16 13:04:46 $
 */
public abstract class Type extends EqualObject implements Comparable, Serializable, Cloneable, WithID {

    protected final  int  m_nID;

    //------------------------------------------------------------------------
    //  Constructors
    //------------------------------------------------------------------------

    /**
     * @param  _nID  User defined ID.<br>
     *               <b>Attention:</b>You can use the same ID twice! It's not checked!
     */
    protected Type(final int _nID) {
        m_nID = _nID;
    }

    //------------------------------------------------------------------------
    //  implemented methods from ID
    //------------------------------------------------------------------------

    public final int getID() {
        return m_nID;
    }


    public final boolean equalIDs(final WithID _id) {
        return m_nID == _id.getID();
    }

    //------------------------------------------------------------------------
    //  implemented methods from Comparable
    //------------------------------------------------------------------------

    /**
     * @param  _o  Parameter name is self-explanatory!
     * @return     <code>getID() - ((Enum)_o).getID();</code>
     */
    public int compareTo(final Object _o) {
        // not final
        return m_nID - ((WithID)_o).getID();
    }

    //------------------------------------------------------------------------
    //  implemented methods from EqualObject
    //------------------------------------------------------------------------

    /**
     * @param  _o  Parameter is of the same class as this object!
     * @return     true if the fields are equal.
     */
    protected boolean equalFields(final Object _o) {
        Type  typeParameter  = (Type)_o;
        if (m_nID == typeParameter.m_nID) {
            return true;
        }
        return false;
    }


    /**
     * @return    Returns the ID.
     */
    public int hashCode() {
        // not final
        return m_nID;
    }

    //------------------------------------------------------------------------
    //  overrided methods from Object
    //------------------------------------------------------------------------

    /**
     * @return    Returns the ID.
     */
    public String toString() {
        return Integer.toString(m_nID);
    }

}