// Verify we are not missing one or more of the following required
// WriteBehind configuration parameters:
// - openjpa.DataCache
// - openjpa.WriteBehindCallback
if (_conf.getDataCacheManagerInstance().getSystemDataCache() == null) {
throw new WriteBehindConfigurationException(
_loc.get("writebehind-cfg-err",
"openjpa.DataCache").getMessage());
}
if (_conf.getWriteBehindCallbackInstance() == null ) {
throw new WriteBehindConfigurationException(
_loc.get("writebehind-cfg-err",
"openjpa.WriteBehindCallback").getMessage());
}
Broker broker =