Java Preferences Adapter

The Java Preferences adapter is part of the SUNWapcj package for Solaris.

Java Preferences Adapter Configuration

The Java Preferences adapter is provided as an implementation of the Preferences API that must be used as a wrapper to another existing implementation (such as the default file based system provided with the JRE). To enable the use of central configuration in a Java application that makes use of the Preferences API, a startup script for that application must be written, using the /usr/lib/apoc/apocjlaunch script as a helper. This script needs to define a few environment variables and then include the apocjlaunch script at its end (which starts the Java application with the necessary environment). The environment variables that must be set are:

• JAVA: contains the path to the Java runtime executable

• APPLICATION: contains the trailing part of the regular Java runtime invocation for that applications. For example,classname [arguments] for a single class startup, or -jar jarname [arguments] for a jar archive startup.

The optional additional environment variables that can be set are:

• CLASSPATH: colon-separated list of jars or class files that need to be part of the application class path

• DEFINES: string containing the define statements that need to be part of the application startup

• PREFFACTORY: class name of the factory in the underlying Preferences API implementation that the application needs to use