oracle.adf.share.prefs (Oracle Fusion Middleware Java API Reference for Oracle ADF Share)

Class Summary
Class	Description
ADFPreferences	An implementation of `Preferences` class providing a MDS repository based persistence mechanism.
ADFPreferencesFactory	A factory object that generates Preferences objects.
ADFPreferencesManager
ADFPreferencesRegistry

Enum Summary
Enum Description

PreferenceLevel
Class containing preference level constants.
Exception Summary
Exception Description

PreferencesRuntimeException
Preferences runtime extension class.

Enum Summary
Enum	Description
PreferenceLevel	Class containing preference level constants.

Exception Summary
Exception	Description
PreferencesRuntimeException	Preferences runtime extension class.

Package oracle.adf.share.prefs Description

This package allows applications to store and retrieve user and system levels of preference data. This data is persisted in the MDS repository in which the metadata associated with the ADF application using these Preference classes resides. By default there are two predefined levels of preference nodes, one for user preferences based on the J2EE authenticated user and one for system preferences. However, developers can make use of the helper methods which enable access to Preferences based on a leveled priority, namely provide user preferences over system preferences where the preference item exists in the user preference node as well as the system preference node. Should the preference only exist in the system preference node then the value associated with the system preference will be returned instead.

NOTE: In order to support usage of the ADFPreferences Utility outside of the context of an ADF Web Application it is necessary to use the ADFPreferencesFactory(ADFPreferencesConfig config) constructor, where the ADFPreferencesConfig is based on the ADFPreferencesSimpleConfig(MDSInstance) object, that takes an MDSInstance object in it's constructor.

Consumers of the Preference Utility working within the context of an ADF Web Application should use the constructor which takes no arguments as this will obtain the MDS Instance from the ADF Context object that has been configured against the web application.