notstorable.java

db4o db4o是一个嵌入式的开源对象数据库引擎.对于Java与.NET开发者来说都是一个非常好的对象持久化工具. db4o性能高并且安装简单.

package com.db4o.f1.chapter6;

public class NotStorable {
  private int id;
  private String name;
  private transient int length;

  public NotStorable(int id,String name) {
    this.id=id;
    this.name=name;
    this.length=name.length();
  }

  public int getId() {
    return id;
  }
  
  public String getName() {
    return name;
  }  

  public int getLength() {
    return length;
  }

  public String toString() {
    return id+"/"+name+": "+length;
  }
}