[infinispan-dev] Remote Query improvements

Hi everybody, last week I developed a simple application using Remote Query, and ran into a few issues. Some of them are just technical hurdles, while others have to do with the complexity of the developer experience. Here they are for open discussion: - the schemas registry should be persistent. Alternatively being able to either specify the ProtoBuf schema from the <indexing /> configuration in the server subsystem or use server's deployment processor to "deploy" schemas. - the server should store the single protobuf source schemas to allow for easy inspection/update of each using our management tools. The server itself should then compile the protobuf schemas into the binary representation when any of the source schemas changes. This would require a Java implementation of the ProtoBuf schema compiler, which wouldn't probably be too hard to do with Antlr. - we need to be able to annotate single protobuf fields for indexing (probably by using specially-formatted comments, a la doclets) to avoid indexing all of the fields - since remote query is already imbued with JPA in some form, an interesting project would be to implement a JPA annotation processor which can produce a set of ProtoBuf schemas from JPA-annotated classes. - on top of the above, a ProtoBuf marshaller/unmarshaller which can use the JPA entities directly. Tristan