Binary decoration in Extend client

Question

Is it possible to somehow intercept a simple put() operation at the client and to decorate the Binary objects produced by POF serialization? The goal here is to pass metadata that is not a part of the cached state and yet is available to be processed by e.g. MapTrigger or BinaryEntryStore implementations.

Answer 1

spark wrote:
Is it possible to somehow intercept a simple put() operation at the client and to decorate the Binary objects produced by POF serialization? The goal here is to pass metadata that is not a part of the cached state and yet is available to be processed by e.g. MapTrigger or BinaryEntryStore implementations.Hi spark,
I don't remember off my head the format of the decorated binary, if it is possible to write a decoration without knowing the size of the binary you want to decorate. If that is possible, then it would be possible with a custom Serializer (not PofSerializer) writing the decoration header before delegating to the original Serializer.
If you use POF and 3.6+ and you want to "decorate" only the value, you should probably write decoration data into the normal PofWriter and create a nested POF writer to write the to-be-decorated object afterwards.
Best regards,
Robert