We cache data in one of our operation participants based on the process configuration data passed into the operation participant's run method via the IProcessConfigurationElement participantConfiguration parameter.  Is there a way to detect that a project area's process configuration has changed so that we can clear the cache for that process area?  I found a an IProcessModelChangeListener interface, but it looks to be an internal client interface as it's location in the com.ibm.team.process.internal.client.workingcopies package.