Difference between revisions of "Midware TAppServer"
Jump to navigation
Jump to search
| (14 intermediate revisions by the same user not shown) | |||
| Line 18: | Line 18: | ||
| valign="top" | [[Midware_TAppServer.ClientTimeout | ClientTimeout]] |||| ClientTimeout gives the time in seconds before the server disconnect a client without activity. | | valign="top" | [[Midware_TAppServer.ClientTimeout | ClientTimeout]] |||| ClientTimeout gives the time in seconds before the server disconnect a client without activity. | ||
|- | |- | ||
| − | | valign="top" | [[Midware_TAppServer.ClientWSocket | ClientWSocket]] |||| ClientWSocket is a run-time read-only indexed property whose value is the reference to each connected client TClientWSocket component. | + | | valign="top" | [[Midware_TAppServer.ClientWSocket | ClientWSocket]] |||| ClientWSocket is a run-time read-only indexed property whose value is the reference to each connected client [[Midware_TClientWSocket | TClientWSocket]] component. |
|- | |- | ||
| valign="top" | [[Midware_TAppServer.ConnectCount | ConnectCount]] |||| ConnectCount gives the total number of connection received since server startup. | | valign="top" | [[Midware_TAppServer.ConnectCount | ConnectCount]] |||| ConnectCount gives the total number of connection received since server startup. | ||
| Line 26: | Line 26: | ||
| valign="top" | [[Midware_TAppServer.Handle | Handle]] |||| The Handle property is the windows handle for the hidden window the component uses for internal messages | | valign="top" | [[Midware_TAppServer.Handle | Handle]] |||| The Handle property is the windows handle for the hidden window the component uses for internal messages | ||
|- | |- | ||
| − | | valign="top" | [[Midware_TAppServer. | + | | valign="top" | [[Midware_TAppServer.Options | Options]] |||| Options are used by TAppServer to modify behaviour. |
|- | |- | ||
| valign="top" | [[Midware_TAppServer.Port | Port]] |||| The port property gives the port number or service name used by the server to listen for client connection. | | valign="top" | [[Midware_TAppServer.Port | Port]] |||| The port property gives the port number or service name used by the server to listen for client connection. | ||
|- | |- | ||
| − | | valign="top" | [[Midware_TAppServer. | + | | valign="top" | [[Midware_TAppServer.RequestBroker | RequestBroker]] |||| The server component receive client requests, data parameters and send replies to client. |
|- | |- | ||
| valign="top" | [[Midware_TAppServer.RequestCount | RequestCount]] |||| RequestCount gives the total number of requests received since server startup. | | valign="top" | [[Midware_TAppServer.RequestCount | RequestCount]] |||| RequestCount gives the total number of requests received since server startup. | ||
|- | |- | ||
| − | | valign="top" | [[Midware_TAppServer.SrvWSocket | SrvWSocket]] |||| SrvWSocket is the underlaying | + | | valign="top" | [[Midware_TAppServer.SrvWSocket | SrvWSocket]] |||| SrvWSocket is the underlaying [[Midware_TClientWSocket | TClientWSocket]] component used to listen for for client connections. |
|- | |- | ||
| valign="top" | [[Midware_TAppServer.Timeoutlnterval | Timeoutlnterval]] |||| The server periodically check for client timeout. | | valign="top" | [[Midware_TAppServer.Timeoutlnterval | Timeoutlnterval]] |||| The server periodically check for client timeout. | ||
| Line 52: | Line 52: | ||
{| | {| | ||
| − | | width="140" valign="top" | [[Midware_TAppServer.OnAfterProcessRequest | OnAfterProcessRequest]] |||| | + | | width="140" valign="top" | [[Midware_TAppServer.OnAfterProcessRequest | OnAfterProcessRequest]] |||| Occurs when a request has been processed. |
|- | |- | ||
| − | | valign="top" | [[Midware_TAppServer.OnAfterSendReply | OnAfterSendReply]] |||| | + | | valign="top" | [[Midware_TAppServer.OnAfterSendReply | OnAfterSendReply]] |||| Occurs just after a reply has been sent. |
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnBeforeProcessRequest | OnBeforeProcessRequest]] |||| Occurs before a client request is processed, just after it has been received. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnBeforeSendReply | OnBeforeSendReply]] |||| Occurs just before a reply is sent to the client. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnClientConnected | OnClientConnected]] |||| Occurs when a client connect to the server. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnClientClosed | OnClientClosed]] |||| Occurs when a client disconnect from the server. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnClientCommand | OnClientCommand]] |||| Occurs when a client's request is received, and before it is processed. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnClientTimeout | OnClientTimeout]] |||| Occurs when a client is disconnected because of lack of activity. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnClientBgException | OnClientBgException]] |||| Occurs when an exception is triggered in the background by client socket. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnDisplay | OnDisplay]] |||| Occurs when server need to display a message. | ||
| + | |- | ||
| + | | valign="top" | [[Midware_TAppServer.OnServerBgException | OnServerBgException]] |||| Occurs when an exception in server socket occurs in the background. | ||
|} | |} | ||
Latest revision as of 15:11, 24 May 2011
Main page -> Midware component reference -> TAppserver
Contents
Overview
| unit | ApServer.pas |
TAppServer is the communication kernel for all MidWare application servers. This component handle all the communication work for the application server, keeping track of user connections and sessions. A complete application server is made of a TAppserver component, a TRequestBroker (Object Request Broker) component and a set of TServerObject descendent components.
Properties
| Banner | The banner property is the text that is sent to the client when the connection has been established. Default value is 'Welcome to MidWare server'. | |
| ClientCount | Gives the actual number of connected clients. | |
| ClientCountLabel | If assigned, this property will be used by TAppServer component to display the number of client connected. | |
| ClientTimeout | ClientTimeout gives the time in seconds before the server disconnect a client without activity. | |
| ClientWSocket | ClientWSocket is a run-time read-only indexed property whose value is the reference to each connected client TClientWSocket component. | |
| ConnectCount | ConnectCount gives the total number of connection received since server startup. | |
| DisplayMemo | If assigned, this property will be used by TAppServer component to display messages during work. | |
| Handle | The Handle property is the windows handle for the hidden window the component uses for internal messages | |
| Options | Options are used by TAppServer to modify behaviour. | |
| Port | The port property gives the port number or service name used by the server to listen for client connection. | |
| RequestBroker | The server component receive client requests, data parameters and send replies to client. | |
| RequestCount | RequestCount gives the total number of requests received since server startup. | |
| SrvWSocket | SrvWSocket is the underlaying TClientWSocket component used to listen for for client connections. | |
| Timeoutlnterval | The server periodically check for client timeout. |
Methods
| DisconnectAll | Disconnect every connected client. Do not confuse with the Stop method. | |
| Start | The start procedure will start the server. The server will accept new client connections. See also Stop. | |
| Stop | The Stop procedure will stop the server which will no more accept new clients, but will not disconnect already connected clients. See also Start. |
Events
| OnAfterProcessRequest | Occurs when a request has been processed. | |
| OnAfterSendReply | Occurs just after a reply has been sent. | |
| OnBeforeProcessRequest | Occurs before a client request is processed, just after it has been received. | |
| OnBeforeSendReply | Occurs just before a reply is sent to the client. | |
| OnClientConnected | Occurs when a client connect to the server. | |
| OnClientClosed | Occurs when a client disconnect from the server. | |
| OnClientCommand | Occurs when a client's request is received, and before it is processed. | |
| OnClientTimeout | Occurs when a client is disconnected because of lack of activity. | |
| OnClientBgException | Occurs when an exception is triggered in the background by client socket. | |
| OnDisplay | Occurs when server need to display a message. | |
| OnServerBgException | Occurs when an exception in server socket occurs in the background. |
