model.java

来自「J2ME开发精解源代码已经过调试成功」· Java 代码 · 共 50 行

package com.j2medev.chapter3.phonebook;

import java.util.*;

public class Model {

    private Vector entries = new Vector();

    public void addEntry(Entry entry) {
        entries.addElement(entry);
    }

    public Entry getEntry(int index) {
        return (Entry)entries.elementAt(index);
    }

    public void updateEntry(Entry entry) {
        for(int i=0; i<entries.size(); i++) {
            Entry e = (Entry)entries.elementAt(i);
            if(e.getId()==entry.getId()) {
                e.setName(entry.getName());
                e.setMobile(entry.getMobile());
                e.setPhone(entry.getPhone());
                e.setEmail(entry.getEmail());
                return;
            }
        }
    }

    public Entry[] getAll() {
        Entry[] ret = new Entry[entries.size()];
        entries.copyInto(ret);
        return ret;
    }

    public int size() {
        return entries.size();
    }

    public void removeEntry(Entry entry) {
        for(int i=0; i<entries.size(); i++) {
            Entry e = (Entry)entries.elementAt(i);
            if(e.getId()==entry.getId()) {
                entries.removeElementAt(i);
                return;
            }
        }
    }
}