To avoid the need to ship the value class to all the data grid classpath, it would be quite useful to ask to read the value as byte[] / marshalled form for the filter and converter part on each node involved (for a clustered listener).

For example, if the value is serialized as protobuf, an implementation could receive the byte[] of the protobuf and read the necessary properties without forcing a specific application .class file to be present. It also saves in unnecessary unmarshalling. Ideally a flag could be used @Listener(marshalled=false).

This issue might have been created (by Galder) but I cannot find it.