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Creates a detailed specification of the EDMInterface communication parameters for communication between an EDMclient and an EDMserver.
A defined server context is identified by its unique numeric server context id. A server context id is a mandatory input parameter to all edmiRemote API function calls. Any number of server contexts may be defined in an EDMclient session at the same time, thereby allowing simultaneous access to any number of remote EDMdatabase located anywhere in the world by TCP or HTTP communication.
Related functions: edmiDefineServerContextsFromFile, edmiDeleteAllServerContexts, edmiDeleteServerContext, edmiDeleteServerContextBN, edmiGetAllServerContexts, edmiGetServerContextId, edmiGetServerContextProperties, edmiResetServerContext, edmiWriteServerContextsToFile.
Header:
#include "sdai.h"
Prototype:
EdmiError edmiDefineServerContext(SdaiString      serverContextName,
                                   SdaiString      userName,
                                   SdaiString      groupName,
                                   SdaiString      password,
                                   SdaiString      communicationType,
                                   SdaiString      edmServerPortNumber,
                                   SdaiString      edmServerHostName,
                                   SdaiString      edmiTunnelName,
                                   SdaiString      edmiTunnelPortNumber,
                                   SdaiString      edmiTunnelHostName,
                                   SdaiString      proxyServerPortNumber,
                                   SdaiString      proxyServerName,
                                   SdaiUnsignedInt *serverContextId);
Arguments:

serverContextName

Optional name of the server context. Server context names must start with a character followed by any combination of alphanumeric characters and underscore.

userName

The name of the edmUser to connect to the EDMserver. The edmUser name is case insensitive and mandatory.

groupName

The name of the edmGroup to connect to the EDMserver. The edmGroup name is case insensitive and optional.

password

The password of the edmUser specified by <userName>. The password parameter is mandatory.

communicationType

The nature of the communication with an EDMserver. Valid communication types are;
"HTTP": Stateless transaction oriented communication with a remote EDMserver by the Hyper Text Transfer Protocol.
"TCP": Stateless transaction oriented communication with a remote EDMserver by the Transfer Communication Protocol.
"LOCAL_DB": Stateful transaction oriented communication with a locally connected EDMserver. The communication type will be as specified for the locally connected EDMserver. The local connection communication type must be defined by edmiDefineCommunication or edmiDefineCommunicationEx
"LOCAL_CONTEXT": Stateful non-transaction oriented communication with a locally connected EDMserver. The communication type will be as specified for the locally connected EDMserver. The local connection communication type must be defined by edmiDefineCommunication or edmiDefineCommunicationEx

edmServerPortNumber

The service port number used for remote communication with an EDMserver. Valid for <communicationType> "TCP" and "HTTP".

edmServerHostName

The name or IP-address of the machine hosting the EDMserver to communicate with. Valid for <communicationType> "TCP" and "HTTP".

edmiTunnelName

The name and full path of the HTTP Tunnel Servlet. Valid only for <communicationType> "HTTP".

edmiTunnelPortNumber

The tunnel service port number used by the machine hosting the HTTP Tunnel Servlet. Used by the HTTP tunnel for controling remote communication between an EDMserver and a thin EDMClient. Valid only for <communicationType> "HTTP".

edmiTunnelHostName

The name or IP-address of the machine hosting the HTTP Tunnel Servlet. Valid only for <communicationType> "HTTP".

proxyServerPortNumber

The service port number used for communication by the proxy server. Valid for <communicationType> "TCP" and "HTTP".

proxyServerName

The name or IP-address of the machine hosting the proxy service. Valid for <communicationType> "TCP" and "HTTP"

*serverContextId

Variable that will receive the unique numeric identificator of the defined server context.

Returns:
A completion code of datatype EdmiError is the returned function value. The completion code has the following values:
Completion code = 0 : Operation successfully performed.
Completion code != 0: Error in operation. Completion code is an EDMinterface error code. Use edmiGetErrorText to get the error text corresponding to the error code.
Example:
EdmiError rstat;
SdaiUnsignedInt serverContextId;
. . .
if (rstat = edmiDefineServerContext("MyContext",
"Johnny", "supervisor", "w34rS7", 
"HTTP", "9090", "EDMServerHost",
"/http/MyHttpTunnel", "7408 "192.136.64.13", 
"1120", "OurProxyServer", &serverContextId)) {
printf("\nError %d in edmiDefineServerContext", rstat); 
goto err; 
}
. . .

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