Package org.apache.env

Which is a simple utility that inspects your JVM's environment and reports simple info about versions of classes found.

See:
Description

Interface Summary

WhichProject

Simple interface for getting version info about a project.

Class Summary

Which	General environment checking and version finding service; main external entrypoints and command line interface.
WhichAnt	Get Version information about jakarta-ant.
WhichClass	Class finding service.
WhichConstant	Simple static constants used throughout org.apache.env package.
WhichCrimson	Get Version information about xml-crimson.
WhichFactory	Simple factory class for WhichProject implementations.
WhichJar	Static worker methods to find version info about jars and classpaths.
WhichSaxon	Get Version information about Saxon from http://saxon.sourceforge.net/.
WhichXalan	Get Version information about xml-xalan.
WhichXerces	Get Version information about xml-xerces.
WhichXmlCommons	Get Version information about xml-commons code.

Package org.apache.env Description

Which is a simple utility that inspects your JVM's environment and reports simple info about versions of classes found.

Author:

curcuru@apache.org

See: (overview)

xml-commons project for an overview.

Usage: (common)

set CLASSPATH=%CLASSPATH%;which.jar
java org.apache.env.Which [project;WhichProject] [-options]

Usage: (more examples)

Which

This package is a somewhat simplistic environment checking utility. It allows users in various environments to self-test their specific deployed environment to ensure that they have the correct classes present. Which is currently focused on various XML issues but is architected to be generic and easily extensible.

Most of the documentation is included in the Javadocs for the various classes. Which is a framework into which various 'checkers' or WhichProject implementations can be plugged; it then asks each implementation to fill in whatever information it can into a common Hashtable, which it then reports back to the user in one of a number of formats.

Most useful for reporting environments in automated builds or for a self-help system version detection for users reporting bugs.