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Server/Client simple doubt

 
Julio Cesar Marques
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Posts: 80
BSD Java
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Hi guys!

Look, i have a simple question about client/server communication: Is this sequence correct?

client->request
server->acept
client->send
server->response
server->close connection
server->client connection (and again... again... again... in each object transmited)

=== OR ===

client->request
server->acept
client->send
server->response
client->send
server->response
client->send
server->response
client->send
server->response
server->close connection
server->client connection (finish here)

What is the best pratice?
 
K. Tsang
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Posts: 3524
16
Android Java
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Ah if it's a server and "closes connection" it shuts down - meaning clients can't connect. So second option is the correct approach.
 
Julio Cesar Marques
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Posts: 80
BSD Java
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is something like this:

imagine a first access for example (to get the list of data from .db file and populate JTable)

srv-->start
cli-->start
cli-->request list objects and populate JTable

... Now! What is better to happens?

after cli call ois.readObject() for example, i have to keep this conn open to wait for receive a new record, or i close the conn and when i need insert a new record i open conn again?
 
K. Tsang
Bartender
Posts: 3524
16
Android Java
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Hi Julio, the best thing to do is to try doing what you said and see the impact. When you do close the connection, will it throw exception? If you reopen the connection does it make your code longer or complicated?
 
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