valuelist.java

我在加拿大学习的一个比较复杂的在线银行程序.

package com.ebusiness.ebank.bean;

/**
 * <p>Title: </p>
 * <p>Description: This class is used to store multiple records returned when perform a search</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: eBusiness Inc., All right reserved</p>
 * @author unascribed
 * @version 1.0
 */

import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;

public class ValueList implements java.io.Serializable
{
    private List searchResults; //A list of Value objects
    private String errorMessage; //Language dependent message

    public ValueList()
    {
        searchResults = new LinkedList();
        errorMessage = "";
    }

    public ValueList(List results)
    {
        searchResults = results;
        errorMessage = "";
    }

    public ValueList(String error)
    {
        this.errorMessage = error;
    }

    public List getSearchResults()
    {
        return searchResults;
    }

    public void setSearchResults(List results)
    {
        searchResults = results;
    }

    public String getErrorMessage()
    {
        return errorMessage;
    }

    public void setErrorMessage(String error)
    {
        errorMessage = error;
    }

    public boolean addValue(Value value)
    {
        return this.searchResults.add(value);
    }

    public void replaceValue(Value newValue)
    {
        int index = this.searchResults.indexOf(this.getValueByOID(newValue.getObjectID()));
        if (index < 0)
            this.searchResults.add(newValue);
        else
            this.searchResults.set(index, newValue);
    }

    public int getSize()
    {
        return this.searchResults.size();
    }

    public Value getValue(int index)
    {
        return (Value)this.searchResults.get(index);
    }

    public Value[] toArray()
    {
        return (Value[])this.searchResults.toArray(new Value[searchResults.size()]);
    }

    public boolean removeValue(Value value)
    {
        return this.searchResults.remove(value);
    }

    public Value removeValue(int index)
    {
        return (Value)this.searchResults.remove(index);
    }

    public boolean removeValue(long objectID)
    {
        return removeValue(getValueByOID(objectID));
    }

    public Value getValueByOID(long objectID)
    {
        Iterator i = searchResults.iterator();
        Value value = null;
        while (i.hasNext())
        {
            value = (Value)i.next();
            if (value.getObjectID() == objectID)
            {
                return value;
            }
        }
        return null;
    }
}