Cache#invoke(key, entryProcessor) executes the "entryProcessor" on a node where the "key" is stored. This is called "colocated processing" that allows you to offload processing from client to server nodes and avoid transferring the "key" and result over the network (although now we have to transfer the computation over the network).
In your example (1) and (2) is executed on the client and (3) is executed on a server node where "accPoint" is stored. If you want everything executed on the server node then just put all the code inside the entryProcessor.
