Is there a way to detect process configuration change in an operation participant

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.