Jump to content
Main menu
Main menu
move to sidebar
hide
Navigation
Aphorismen
Applications
Business Economics & Admin.
My Computers
Cooking
Devices
Folders
Food
Hardware
Infos
Software Development
Sports
Operation Instructions
Todos
Test
Help
Glossary
Community portal
adaptions
Sidebar anpassen
Wiki RB4
Search
Search
Create account
Log in
Personal tools
Create account
Log in
Pages for logged out editors
learn more
Contributions
Talk
Editing
JavaLanguage
(section)
Page
Discussion
English
Read
Edit
View history
Toolbox
Tools
move to sidebar
hide
Actions
Read
Edit
View history
General
What links here
Related changes
Special pages
Page information
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
=Serialization= Damit Objekte serialisiert werden können, müssen die Klassen die Schnittstelle Serializable implementieren. Diese Schnittstelle enthält keine Methoden und ist nur eine Markierungsschnittstelle (engl. marker interface). Implementiert eine Klasse diese Schnittstelle nicht, folgt beim Serialisierungsversuch eine NotSerializableException. Um Elemente bei der Serialisierung auszusparen, bietet Java zwei Möglichkeiten: # ein spezielles Schlüsselwort: [[JavaLanguage#Attributes_bzw._Fields|transient]] # das Feld private final ObjectStreamField[] serialPersistentFields = {...}, das alle serialisierbaren Eigenschaften aufzählt Statische Eigenschaften würden auch nicht serialisiert, aber das ist hier nicht unser Ziel. A serializable class can declare its own serialVersionUID explicitly by declaring a field named "serialVersionUID" that must be static, final, and of type long: ANY-ACCESS-MODIFIER static final long serialVersionUID = 42L; If a serializable class does not explicitly declare a serialVersionUID, then the serialization runtime will calculate a default serialVersionUID value for that class based on various aspects of the class, as described in the Java(TM) Object Serialization Specification. However, it is strongly recommended that all serializable classes explicitly declare serialVersionUID values, since the default serialVersionUID computation is highly sensitive to class details that may vary depending on compiler implementations, and can thus result in unexpected InvalidClassExceptions during deserialization.
Summary:
Please note that all contributions to Wiki RB4 may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Uwe Heuer Wiki New:Copyrights
for details).
Do not submit copyrighted work without permission!
Cancel
Editing help
(opens in new window)
Toggle limited content width