implements serializable

Serializable indicates "serializable" If there is Class B and it does not have implements serializable. When Class B is started for serialization, the system returns the notserializableexception.When we want to pass our own classes in different

About Myeclips hints the serializable class XXX does not declare a static final serialversionuid field of type long warningWhen we use eclips/myeclips, this warning will appear, such as when using Hibernate, automatically generate the corresponding

Serialization: the process of converting a java object to a byte sequence is called serialization. Deserialization: the process of converting byte objects to java objects is called deserialization. In general, serialization has two purposes :, 1)

When using entity classes to generate the corresponding database tables, many times you will encounter this situation: in an entity class to reference another entity class, generally encountered in this case, we use @OneToOne ,, @OneToMany

The goal of object serialization is to either save the object on disk or transfer it over the network. The implementation mechanism is to allow the object to be transformed into a platform-independent binary stream.The serialization mechanism for

1. What is Java object serialization The Java platform allows us to create reusable Java objects in memory, but in general, these objects can exist only when the JVM is running, that is, the life cycle of these objects is no longer than the life

1) Many-to-one mapping relationship (unidirectional)Using foreign Key Association, the foreign key is selected on the main side, that is, the external key to be reflected in more than one side@Entitypublic class Company implements serializable{

1. Introduction1.1. DefinitionSerialization: Serialization is the conversion of an object to a byte stream.Deserialization: Deserialization is the conversion of a byte stream to an object.　　 1.2. UseThe uses for serialization are:Serialization

the relational mapping of hibernate annotations is divided into 2 kinds, namely one-way association map and two-way association map, and their biggest difference is that one-way association can only be queried while querying the data, and both sides

Consider two object classes with one-to-one association. In addition to having a primary key, the owner also has a foreign key that references the primary key. If the relationship between the master and the prosecution is the same, in other words,

Mapping of entity Although in front, we gave the table. But the book recommended that we first design the code, and then according to the code to design the database, user requirements-"code design-" Database design. But I think big projects might

RMI (remote method invocation) The Chinese name is a remote methods call that can be used for distributed computing.Here do not go into the details of RMI, this blog main Apple told RMI actual combat and what needs to be noted, if you want to see

an interface with @ and some description meta annotationsAnnotations used in this development@Id:You must define a property that maps to the primary key of a database table, and an entity can have only one property mapped to the primary

Please take a look at two sections firstCodePackage COM. jadyer. base; public class user implements Java. io. serializable { Private Static final long serialversionuid = 2035637204889097968l; private integer age; Public integer getage () {

Hibernate's attention to attention is indeed very convenient for us to deal with the relationship between entities and sets, and can process sets through cascade methods, but sometimes attention to attention cannot meet our needs, for example, if

Reprinted fromHttp://www.blogjava.net/jiangshachina/archive/2012/02/13/369898.html The article on Java serialization has long been full of resources. This article is a summary of my past studies, understanding and application of Java serialization.

Java serialization, java serialization, and deserialization1. Overview through the serialization mechanism, we can convert objects in Java memory into binary byte streams, so that we can store Java objects to disks or transmit Java objects over the

First, the concept of serialization and deserialization The process of converting an object to a sequence of bytes is called serialization of objects.The process of restoring a byte sequence to an object is called deserialization of an object.There

Original address: http://developer.51cto.com/art/201202/317181.htm1. What is the serialization of Java objectsThe Java platform allows us to create reusable Java objects in memory, but in general, these objects can exist only when the JVM is running,

A more tempting idea is to use serialization techniques to save some state information for a program so that it can be easily restored to its previous state. But before the concrete realization, some problems must be solved. If two objects have a