modelexception.java

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/*
 * ModelException.java
 *
 * Created on 2005年9月11日, 下午8:07
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package com.ch6.post;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

/**
 *
 * @author Administrator
 */
public class ModelException extends Exception {
    
    public static final byte CAUSE_GENERAL = 0;
    public static final byte CAUSE_USER_NOT_FOUND = 1;
    public static final byte CAUSE_INCORRECT_PASSWORD = 2;

    private int causeCode = CAUSE_GENERAL;

    public ModelException(int causeCode) {
        this.causeCode = causeCode;

        return;
    }

    public int getCauseCode() {
        return causeCode;
    } 

    public void serialize(DataOutputStream dataStream) 
            throws ApplicationException {
        try {
            dataStream.writeInt(causeCode);

            return;
        } catch (IOException ioe) {
            throw new ApplicationException(ioe);
        } 
    } 

    public static ModelException deserialize(DataInputStream dataStream) 
            throws ApplicationException {
        try {
            return new ModelException(dataStream.readInt());
        } catch (IOException ioe) {
            throw new ApplicationException(ioe);
        } 
    } 

}