Discover the secrets of the Java Serialization API - The Diigo Meta page

• 05 May 12
  

  alain dhaene

  serialization

• 12 Apr 12
  

  jhon hardy
• 13 Mar 12
  

  Esfand S

  java serialization stream tutorial top readit

• 

  Williams Rivas

  Discover the secrets of the Java Serialization API

  Discover the secrets of Java Serialization API

• 02 Sep 11
  

  Alan Lee
  • Because readObject() can read any serializable object, a cast to the correct type is required. With that in mind, the class file must be accessible from the system in which the restoration occurs. In other words, the object's class file and methods are not saved; only the object's state is saved.
  • . The trick here is  that the virtual machine will automatically check to see if either method is  declared during the corresponding method call. The virtual machine can call  private methods of your class whenever it wants but no other objects can. Thus,  the integrity of the class is maintained and the serialization protocol can  continue to work as normal.
  • To stop the automatic  serialization, you can once again use the private methods to just throw the  NotSerializableException.
  • If you wish to control versioning, you simply have to provide the serialVersionUID  field manually and ensure it is always the same, no matter what changes you make to  the classfile. Y
  • The version control works great as long as the changes are compatible. Compatible  changes include adding or removing a method or a field. Incompatible changes  include changing an object's hierarchy or removing the implementation of the  Serializable interface.

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• 11 Aug 11
  

  java serialization

• 15 Jul 11
  

  mohan j

  java serialization

  • 0 import java.io.Serializable;
     20 import java.util.Date;
     30 import java.util.Calendar;
     40 public class PersistentTime implements Serializable
     50 {
     60 private Date time;
     70
     80 public PersistentTime()
     90 {
     100      time = Calendar.getInstance().getTime();
     110    }
     120
     130    public Date getTime()
     140    {
     150      return time;
     160    }
• 16 May 11
  

  online8

  programming development tutorial howto java serialization

• 21 Apr 11
  

  anand243244

  serialization

• 21 Mar 11
  

  Jonathan Robinson
• 10 Feb 11
  

  ravuru

  java serialization

• 29 Nov 10
  

  java serializable serialization

• 03 Aug 10
  

  snusmuric s

  java serialization tutorials

• 02 Aug 10
  

  myarnav

  StumbleUpon Unfiled_Tagged

• 02 Jul 10
  

  niramyer
  • implements Serializable
  • Node streams can be used to write to file systems or even across sockets. That means we could easily transfer a flattened object across a network wire and have it be rebuilt on the other side!
  • import java.io.ObjectOutputStream;
  • import java.io.FileOutputStream;
  • 200       out.writeObject(time);
  • To restore the file
  • import java.io.ObjectInputStream;
  • import java.io.FileInputStream;
  • creates a live object that is an exact replica of the origina
  • a cast to the correct type is required.
  • the object's class file and methods are not saved; only the object's state is saved.
  • strings, and arrays -- are serializable
  • certain system-level classes such as Thread, OutputStream and its subclasses, and Socket are not serializable.

  11 more annotations...

• 24 Jun 10
  

  vivek saini
  • In other words, the object's class file and methods are not saved; only the object's state is saved.
  • The java.lang.Object class does not implement that interface
  • you must mark transient any field that  either cannot be serialized
  • Serialization does not care about access modifiers such as  private -- all nontransient fields are considered  part of an object's persistent state and are eligible for persistence.
  • • Rule #1: The object to be persisted must implement  the Serializable interface or inherit that implementation from its object hierarchy
     
     
    • Rule #2: The object to be persisted must mark all nonserializable fields transient
  • The virtual machine can call  private methods of your class whenever it wants but no other objects ca
  • . That means that if the state of the written  object is written and then written again, the new state will not be saved!

  5 more annotations...

• 20 Apr 10
  

  c v
  • Object serialization is the process of saving an object's state to a sequence of bytes, as well as the process of rebuilding those bytes into a live object at some future time.
  • three different ways to perform serialization -- using the default protocol, customizing the default protocol, and creating our own protocol
  • and we'll investigate concerns that arise with any persistence scheme such as object caching, version control, and performance issues.
  • The completely empty Serializable is only a marker interface -- it simply allows the serialization mechanism to verify that the class is able to be persisted. Thus, we turn to the first rule of serialization:
  • The java.lang.Object class does not implement that interface. Therefore, not all the objects in Java can be persisted automatically.

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• 17 Dec 09
  

  Dan Chisarick

  private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException

  java serialization tutorial programming api development howto serialize article

• 29 Nov 09
  

  Richard Kanavati

  "{"

  java serialization

• 24 Sep 09
  

  Vivek Viswanathan

  serialVersionUID, Externalizable

  java tutorial programming serialization Externalizable Interview

• 19 Sep 09
  

  Yuen Chi Lian

  java

• 07 Jun 09
  

  Alexandra N

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• 26 Apr 09
  

  max j

  serialization api article Java

• 21 Apr 09
  

  Claudio Gomes

  java serialization

• 09 Apr 09
  

  Liming Lian

  java serialization

  • Create Your Own Protocol: the Externalizable Interface

     Our discussion would be incomplete not to mention the third option for  serialization: create your own protocol with the Externalizable  interface. Instead of implementing the Serializable interface,  you can implement Externalizable, which contains two methods: 
  • The identifier that is part of  all classes is maintained in a field called serialVersionUID.
• 21 Jan 09
  

  Blue Gene

  java serialization tutorial

• 16 Dec 08
  

  Paul Acquaro

  java programming API

• 08 Oct 08
  

  peterneorr

  java serialize serialization tutorial

• 01 Sep 08
  

  Michal Karták
• 11 Jul 08
  

  quekshuy Quek

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• 03 Jul 08
  

  java

• 21 May 08
  

  Brooke Smith

  Java Serialization

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• 30 Apr 08
  

  Po Chui

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• 29 Apr 08
  

  Thomas Lombard

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• 31 Mar 08
  

  Ferdinand Urban

  java

• 15 Nov 07
  

  nealrichter

  serialization java tutorial

• 16 Oct 07
  

  Vijay Challa

  Java Serialization

  java serialization code coding examples programming

• 13 Aug 07
  

  harry
  • Object serialization is the process of saving an object's state to a sequence of bytes, as well as the process of rebuilding those bytes into a live object at some future time. The Java Serialization API provides a standard mechanism for developers to handle object serialization. The API is small and easy to use, provided the classes and methods are understood.
• 08 Aug 07
  

  Leandro Rodrigo Saad Cruz

  eration for your application, you may want to consider building a custom protocol.

  java serialization

• 11 Jun 07
  

  approxy

  Hyvä opas Java Serialization APIin

  java serialization tutorial programming api

• 20 May 07
  

  krating daeng

  java serializable

• 13 Apr 07
  

  Isaac Ruiz

  Discover the secrets of the Java Serialization API

  API article example howto interface java programming serialization

• 24 Feb 07
  

  Java serialization Serializable interface API Inscription technology gesture HMI

• 04 Feb 07
  

  CK Lee

  java serialization tutorial

  • the object's class file and methods are not saved; only the object's state is saved.
  • First, the object is checked to ensure it  implements Serializable and then it is checked to see whether  either of those private methods are provided. If they are provided, the  stream class is passed as the parameter, giving the code control over its usage
  • To stop the automatic  serialization, you can once again use the private methods to just throw the  NotSerializableException
  • if the state of the written  object is written and then written again, the new state will not be saved
  • First, you could make sure  to always close the stream after a write call, ensuring the new object is  written out each time. Second, you could call the  ObjectOutputStream.reset() method
  • If you wish to control versioning, you simply have to provide the serialVersionUID  field manually and ensure it is always the same, no matter what changes you make to  the classfile.
  • the system may not garbage collect the objects written to  a stream if the stream is not closed

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• 12 Jan 07
  

  Matt Sidesinger

  java

• 25 Dec 06
  

  terry p

  Java Serialization Sun

• 24 Nov 06
  

  java serialization development

• 27 Nov 05
  

  Navaneethakrishnan Ramakrishnan

  java serialization

• 05 Feb 05
  

  Meir Shahar

  java serialization

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